Ch 4: Labour Costing

Learning objectives

By the end of this chapter, you should be able to:

• Calculate gross pay under time-based pay, overtime, and piecework arrangements, including common bonus plans.
• Analyse labour cost into direct labour, indirect labour, overtime premium, and idle time for accurate cost classification.
• Compute and interpret labour ratios (efficiency, capacity, and production volume) to assess productivity and utilisation.
• Measure labour turnover using alternative rates and recommend practical controls to improve productivity and reduce avoidable cost.
• Classify labour-related costs appropriately for inventory valuation, cost of sales, and operating expenses to support reporting and decision-making.

Overview & key concepts

Labour is often one of the largest controllable costs in both manufacturing and service environments. A sound labour-costing system does two things well:

1. Measures pay accurately (hours, output, overtime, bonuses, and authorised exceptions).
2. Classifies labour cost consistently so that product/service cost, inventory values, and reported profit are not distorted.

In a manufacturing environment, labour that contributes to making goods for sale is usually accumulated into inventory (work in progress and finished goods) and becomes an expense when the goods are sold (cost of sales). Labour costs that do not contribute to producing goods (or that arise from abnormal inefficiency) are generally treated as period costs (operating expenses or abnormal loss items, depending on the organisation’s reporting approach).

In service organisations, direct labour can still be “direct” for job costing (traceable to a client/job) even if it is expensed in the period because there is no inventory of goods. Some service activities may also accumulate work in progress on longer assignments, depending on how the business tracks incomplete work.

Direct and indirect labour

Direct labour

Direct labour is the pay of employees whose time can be traced economically to specific units, jobs, contracts, or processes.

Cost treatment (manufacturing context):

• Usually charged to work in progress (WIP).
• Becomes part of cost of sales when the goods are sold.

In manufacturing, direct labour, direct materials and production overhead together form the production/manufacturing cost of output. In practice, tracing is only done where it is cost-effective; otherwise labour is treated as indirect and absorbed via overhead.

Indirect labour

Indirect labour supports production but cannot be traced economically to specific output.

Cost treatment (manufacturing context):

• Usually charged to production overhead.
• Included in inventory and cost of sales indirectly through overhead absorption.

Time-based pay and piecework

Time-based pay

Employees are paid based on time worked × hourly rate (or salaried equivalent).

Example: 40 hours at £12 per hour → gross pay £480.

Piecework

Employees are paid based on units produced or operations completed. It may be the sole pay method or a bonus on top of time pay.

Example (bonus basis): £0.50 per unit × 100 units → bonus £50.

For costing, output-related piecework payments are normally treated as direct labour when the output relates to a specific product/job/process.

Bonus plans

Bonus plans reward performance (often time saved) and influence behaviour. Two common plans are Halsey and Rowan, both based on a standard time allowed for a task.

These schemes rely on a realistic standard time; outdated standards can demotivate employees, create excessive payouts, and distort performance signals.

Halsey bonus plan

The employee receives pay for actual time worked plus a share of the value of time saved.

• Time saved = Standard hours − Actual hours
• Bonus = Share × Time saved × Hourly rate
• Total pay = (Actual hours × Hourly rate) + Bonus

Micro-example (Halsey, 50% share) Standard time 10 hours, actual time 8 hours, hourly rate £12. Time saved = 2 hours. Bonus = 50% × 2 × £12 = £12. Total pay = (8 × £12) + £12 = £96 + £12 = £108.

Rowan bonus plan

The employee receives pay for actual time worked plus a bonus linked to the proportion of time saved relative to the standard.

• Time saved = Standard hours − Actual hours
• Bonus = (Time saved ÷ Standard hours) × Actual hours × Hourly rate
• Total pay = (Actual hours × Hourly rate) + Bonus

Micro-example (Rowan) Standard time 10 hours, actual time 8 hours, hourly rate £12. Time saved = 2 hours. Bonus = (2 ÷ 10) × 8 × £12 = 0.2 × 8 × £12 = £19.20. Total pay = (8 × £12) + £19.20 = £96 + £19.20 = £115.20.

Overtime and overtime premium

Overtime is work done beyond normal hours and is often paid at a higher rate. Separate overtime pay into:

• Basic element: overtime hours × basic rate
• Overtime premium: overtime hours × (overtime rate − basic rate)

Example: basic £12, overtime rate £18 → premium per hour = £6.

Classification of the overtime premium

• If overtime is worked for a specific job/customer request, charge the premium to that job.
• If overtime arises from general capacity pressure, treat the premium as production overhead.
• If overtime is required due to abnormal inefficiency (for example, exceptional breakdowns or serious planning failures), the premium may be treated as an abnormal cost, depending on the scenario.

Idle time

Idle time is paid time with no productive output.

• Normal idle time: expected under normal operating conditions and allowed for when setting standards. Usually treated as production overhead.
• Abnormal idle time: not expected under normal operating conditions (exceptional/avoidable). Usually treated as a period cost and investigated.

A breakdown may be normal or abnormal depending on what was assumed in “normal” operating conditions and standards.

Payroll analysis

Payroll analysis breaks gross wages into categories so that direct labour, indirect labour, idle time, overtime premiums, and bonuses are treated consistently. A core control is reconciling:

• attendance hours (clock cards / timesheets)
• to
• job hours (job tickets / time booking)

The difference identifies idle time and supports both payroll accuracy and cost control.

Labour ratios

These ratios are only meaningful if hours are defined consistently.

In this chapter:

• Attendance hours = paid/recorded hours present (including overtime), before deducting idle time.
• Productive hours = hours actually spent producing output (attendance hours less idle time and indirect activities such as training).
• Standard hours = time that should be needed for the output achieved, based on standard time per unit/operation.

In this chapter, productive hours include productive overtime hours.

Labour efficiency ratio (speed/productivity)

Labour efficiency ratio (%) = (Standard hours for actual output ÷ Actual productive hours) × 100

Labour capacity ratio (utilisation)

Labour capacity ratio (%) = (Actual attendance hours ÷ Budgeted attendance hours) × 100

Labour production volume ratio (output volume)

Labour production volume ratio (%) = (Standard hours for actual output ÷ Budgeted standard hours) × 100

Labour turnover

Turnover is the rate at which employees leave and are replaced.

Average headcount is commonly:

• (Opening headcount + Closing headcount) ÷ 2

Separation rate

Separation rate (%) = (Number of leavers ÷ Average headcount) × 100

Replacement rate

Replacement rate (%) = (Replacements hired to fill leavers’ posts ÷ Average headcount) × 100 (Exclude expansion hires unless the question states otherwise.)

Flux rate

One common definition is: Flux rate (%) = ((Leavers + Replacements) ÷ Average headcount) × 100

Definitions vary in exam questions—use the formula the question provides (or state your assumption clearly).

High turnover can increase recruitment, induction and training cost, reduce productivity while new staff learn, and lead to quality failures and rework. Controls include better onboarding, targeted training plans, pay/progression review, improved supervision, and job design improvements.

Core theory and frameworks

Recording labour costs

Accurate recording starts with reliable source data:

• timesheets/clock cards for attendance,
• job tickets/time booking for job allocation,
• output records for piecework and efficiency analysis,
• approvals for overtime, downtime, and bonuses.

Attendance time should reconcile to job time plus authorised idle/indirect time.

Calculating gross pay

Gross pay may include:

• basic time pay,
• overtime pay,
• piecework payments or productivity bonuses (including Halsey/Rowan-type plans),
• allowances and fixed bonuses.

Costing starts from gross pay and then classifies it into direct labour, overhead, and (where relevant) abnormal losses.

Classifying labour costs

A practical classification approach is:

• Direct labour (productive): traceable work on units/jobs (charged to WIP/job cost)
• Indirect labour: support activities (charged to production overhead)
• Idle time:
• Overtime premium:
• Bonuses/allowances:

Posting labour costs

A common approach uses a wages control account (payroll control) to accumulate gross wages before allocation. These journals reflect cost ledger/cost accounting entries; financial ledger postings may vary depending on system integration.

A wages control account helps by separating payroll processing from cost allocation and supporting reconciliation of total wages to allocated costs.

Template journal flow

1. Record gross wages incurred
2. Dr Wages control
3. Cr Wages payable
4. Allocate wages to costing categories
5. Dr Work in progress (direct labour)
6. Dr Production overhead (indirect labour, normal idle time, general bonuses/premiums)
7. Dr Abnormal idle time expense (if applicable)
8. Cr Wages control
9. Pay wages
10. Dr Wages payable
11. Cr Bank

Worked example

Narrative scenario

A manufacturing company uses a basic hourly rate of £12. Overtime is paid at time-and-a-half. During a particular week:

• Worker A is scheduled for 40 hours but takes 1 day (8 hours) of unpaid leave, so is paid for 32 hours. Of the paid hours, 4 hours are spent waiting for parts (idle time). Worker A produces 100 units and earns a piecework bonus of £0.50 per unit.
• Worker B works 46 hours, including 6 overtime hours. A machine breakdown causes 2 hours of idle time for Worker B. Worker B’s overtime relates to a rush order. Worker B also receives a £10 attendance bonus and a £50 overtime supplement approved because demand is unusually high.
• Worker C works 38 hours, including 4 hours of training (indirect labour time). Worker C assists with a special project and receives a £20 bonus. Worker C produces 40 units.
• Worker B produces 70 units, so total output (A, B and C combined) is 210 units.

Other labour-related costs incurred during the week:

• Safety training session cost: £30
• Employee uniforms purchased: £100

Required

1. Calculate the gross pay for each worker.
2. Analyse the wages into direct and indirect labour, and productive and non-productive components.
3. Compute the overtime premium and classify it appropriately.
4. Prepare the journal entries to allocate labour costs.
5. Calculate and interpret the labour efficiency, capacity, and production volume ratios.

Solution

1) Calculate gross pay

Rates

• Basic rate = £12 per hour
• Overtime rate = £12 × 1.5 = £18 per hour

Worker A

• Basic pay = 32 × £12 = £384
• Piecework bonus = 100 × £0.50 = £50
• Gross pay (A) = £434

Worker B

• Basic pay = 40 × £12 = £480
• Overtime pay = 6 × £18 = £108
• Attendance bonus = £10
• High-demand supplement = £50
• Gross pay (B) = £648

Worker C

• Basic pay = 38 × £12 = £456
• Special project bonus = £20
• Gross pay (C) = £476

Total gross wages = £1,558

2) Analyse wages

Worker A (paid 32 hours)

• Normal idle time: 4 × £12 = £48 → production overhead
• Direct productive time: 28 × £12 = £336 → direct labour
• Piecework bonus: £50 → direct labour

Worker A

• Direct labour = £386
• Production overhead = £48

Worker B (46 hours; 6 overtime; 2 idle)

Overtime premium per hour = £18 − £12 = £6 Overtime premium = 6 × £6 = £36

• Idle time (breakdown): 2 × £12 = £24
• Assume the standard/normal conditions do not include this breakdown time; therefore it is treated as abnormal.
• Direct labour (productive time at basic rate):
• Overtime premium (rush order): £36 → charged to the rush order (direct labour)
• Attendance bonus: £10 → production overhead
• High-demand supplement: £50 → production overhead

Worker B

• Direct labour = £564
• Production overhead = £60
• Abnormal idle time expense = £24

Worker C (38 hours; 4 training)

• Direct labour: 34 × £12 = £408
• Indirect labour time (training): 4 × £12 = £48 → production overhead
• Special project bonus: £20 → production overhead

Worker C

• Direct labour = £408
• Production overhead = £68

3) Overtime premium and classification

• Overtime premium (Worker B): £36
• Classified as direct labour because it relates to the rush order (job-specific).
• High-demand supplement: £50
• Classified as production overhead because it arises from general capacity pressure.

4) Journal entries to allocate labour costs

(a) Record gross wages incurred

Dr Wages control £1,558 Cr Wages payable £1,558

(b) Allocate wages

• Direct labour to WIP = £386 + £564 + £408 = £1,358
• Production overhead (labour-related) = £48 + £60 + £68 = £176
• Abnormal idle time expense = £24

Dr Work in progress (direct labour) £1,358 Dr Production overhead £176 Dr Abnormal idle time expense £24 Cr Wages control £1,558

(c) Pay wages

Dr Wages payable £1,558 Cr Bank £1,558

(d) Other labour-related overhead costs (not wages)

Dr Production overhead £130 Cr Bank / Payables £130

(£30 safety training + £100 uniforms)

5) Labour ratios

Standards and budgets

• Standard time per unit = 0.5 hours per unit
• Budgeted attendance hours = 120 hours
• Budgeted output = 200 units
• Budgeted standard hours = 200 × 0.5 = 100 standard hours

Actual results

• Total output = 210 units
• Standard hours for actual output = 210 × 0.5 = 105 standard hours
• Actual attendance hours = 32 + 46 + 38 = 116 hours
• Actual productive hours (include productive overtime; exclude idle and training) =
• Worker A 28 + Worker B 44 + Worker C 34 = 106 hours

Labour efficiency ratio

Efficiency = (Standard hours for actual output ÷ Actual productive hours) × 100 = (105 ÷ 106) × 100 = 99.0566…% = 99.1%

Labour capacity ratio

Capacity = (Actual attendance hours ÷ Budgeted attendance hours) × 100 = (116 ÷ 120) × 100 = 96.7%

Labour production volume ratio

Production volume = (Standard hours for actual output ÷ Budgeted standard hours) × 100 = (105 ÷ 100) × 100 = 105%

Volume compares standard hours of output to budget; it is not a direct comparison with attendance hours.

Common pitfalls and misunderstandings

• Using inverted ratio formulas or mixing multiple versions of the same formula.
• Using inconsistent hour definitions (attendance vs productive vs standard hours).
• Treating “productive hours” as “basic hours only” (productive overtime is included if spent producing output).
• Confusing overtime pay with overtime premium.
• Misclassifying overtime premium without considering the cause (job pressure, general capacity, or abnormal inefficiency).
• Failing to record and analyse idle time (especially breakdowns and waiting time).
• Treating abnormal idle time as normal overhead (reduces visibility of inefficiency).
• Inconsistent treatment of bonuses and allowances (output-linked vs general incentives).
• Weak reconciliation between attendance records and job/time booking.

Summary

Labour costing requires accurate time and output recording, clear classification into direct labour, production overhead, and abnormal losses, and consistent postings through control accounts to support reconciliation. Productivity ratios are powerful but only when hours are defined consistently. Turnover measures should be selected to match the question’s definition and interpreted alongside cost and operational consequences.

FAQ

How do you calculate the overtime premium?

Overtime premium = (overtime rate − basic rate) × overtime hours. Example: basic £12, overtime £18 → premium £6 per hour. If 5 overtime hours are worked, premium = 5 × £6 = £30.

What is the difference between direct and indirect labour?

Direct labour is traceable economically to units/jobs/processes. Indirect labour supports production but is not traced economically to specific output.

Why is it important to classify labour costs correctly?

Misclassification can distort product cost, inventory valuation, profit, and performance measures used for pricing, budgeting, and control.

How do labour ratios help in assessing productivity?

They separate performance drivers: efficiency (speed vs standard), capacity (utilisation vs plan), and volume (output level vs budget), provided the hour definitions are consistent.

What are the implications of high labour turnover?

High turnover increases recruitment and training cost, can reduce productivity, and may worsen quality. Controls include better onboarding, targeted training, pay/progression review, improved supervision, and job design improvements.

Glossary

Direct labour Pay for employees whose work can be traced economically to units, jobs, or processes. In manufacturing, this is usually charged to work in progress and included in inventory until sale.

Indirect labour Pay for employees who support production but are not traced economically to specific output. Usually treated as production overhead.

Time-based pay Remuneration based on time worked multiplied by an agreed rate.

Piecework Remuneration based on units produced or operations completed, either as a standalone method or as a bonus added to time pay.

Halsey bonus plan A time-saved bonus plan where the employee receives a share of the value of time saved, in addition to pay for actual time worked.

Rowan bonus plan A time-saved bonus plan where the bonus depends on the proportion of time saved relative to the standard, creating a natural cap on the bonus.

Overtime Hours worked beyond normal hours, often paid at a premium rate.

Overtime premium The uplift above the basic rate paid for overtime hours: (overtime rate − basic rate) × overtime hours.

Idle time Paid time with no productive output. Normal idle time is expected under normal operating conditions and is usually absorbed via overhead; abnormal idle time is exceptional and is usually charged as a period cost and investigated.

Payroll analysis Breaking down wages into direct, indirect, idle time, overtime premium, and bonus/allowance categories to support accurate costing and control.

Labour efficiency ratio (Standard hours for actual output ÷ actual productive hours) × 100.

Labour capacity ratio (Actual attendance hours ÷ budgeted attendance hours) × 100.

Labour production volume ratio (Standard hours for actual output ÷ budgeted standard hours) × 100.

Separation rate (Leavers ÷ average headcount) × 100.

Replacement rate (Replacements hired to fill leavers’ posts ÷ average headcount) × 100.

Flux rate A common definition: ((leavers + replacements) ÷ average headcount) × 100.

Learning objectives

By the end of this chapter you should be able to:

• Calculate gross pay under common pay methods (time rate, piece rate, overtime premiums, and simple bonuses).
• Explain the payroll flow from source data to payment and reconciliation, and identify key controls that reduce error and fraud risk.
• Post payroll journal entries correctly for gross pay, employee deductions, net wages payable, and employer on-costs, distinguishing between direct and indirect labour where relevant.
• Interpret labour utilisation and labour efficiency measures and explain how they support productivity and cost management decisions, including how they link to labour variances.

Overview & key concepts

Labour often represents a major controllable cost. Sound payroll processing ensures employees are paid correctly, statutory and other deductions are recorded as liabilities until paid over, and labour costs are measured reliably for planning and performance monitoring.

Flow summary (big picture): Inputs → Calculation → Posting → Payment → Reconciliation (approved hours/output and rates → gross/net pay → ledger entries → bank payments/remittances → proof that records match cash and liabilities)

This chapter covers:

• How pay can be calculated (time-based, output-based, overtime, and bonuses).
• How payroll information flows through systems and accounts.
• How payroll is recorded in the ledger, including deductions and employer on-costs.
• How to calculate and interpret utilisation and efficiency measures.

Labour cost

Labour cost is the total cost of employing staff for a period. It includes:

• Employee gross pay (basic pay, overtime, bonuses, commissions, etc.).
• Employer on-costs (for example, employer social contributions and certain benefits).

Employee deductions (for example tax, employee social contributions, employee pension) are not an additional cost to the employer. The employer records gross pay as the labour cost first, and the deductions are then recorded as liabilities, not as income or expense items.

Illustration

If gross pay is £1,000 and the employer has an additional on-cost of 10% of gross pay, total labour cost for the period is:

• Employee cost (gross pay): £1,000
• Employer on-cost: £100
• Total labour cost: £1,100

Pay methods

Pay methods describe how gross pay is determined. The method chosen affects behaviour, cost predictability, and the controls needed to ensure pay is valid.

Time rate

A time rate pays an employee based on time worked (hourly, daily, weekly, monthly).

• Basic pay = hours (or days) worked × rate per hour (or per day)

Time rate is predictable and simple to administer, but it does not directly reward output.

Piece rate

A piece rate pays based on output (units completed, jobs processed), sometimes with quality rules (for example, only accepted units count).

• Piece rate pay = accepted units × rate per unit

Piecework can motivate output, but requires robust measurement and quality control.

Bonuses and commissions

Bonuses and commissions are additional pay linked to performance or conditions (attendance, sales, output, team targets). They are included in gross pay when earned for the period.

Overtime and the overtime premium

Overtime is paid for hours beyond normal working hours, commonly at a multiple of the basic hourly rate.

• Overtime rate = basic rate × overtime multiple
• Overtime pay = overtime hours × overtime rate
• Overtime premium = overtime hours × (overtime rate − basic rate)

For internal analysis it is often useful to separate the base element (basic rate) from the premium element (the extra amount). A common costing approach is:

• charge the premium to the job if the overtime was specifically requested to meet that job’s deadline; or
• treat the premium as overhead (or a period cost) if overtime arises from general congestion, poor planning, or inefficiency.

Payroll deductions

Payroll deductions are amounts withheld from employees’ gross pay. Common deductions include income tax, employee social contributions, and employee pension contributions.

• Net pay = gross pay − employee deductions

Employee deductions are liabilities until paid over to the relevant authority or provider. They do not reduce the employer’s recorded labour cost: gross pay is recognised before deductions, and deductions simply split the credit between amounts owed to employees (net pay) and amounts owed to third parties (deductions payable).

Payroll control account

A payroll control account (or wages control account) is a clearing account used to reconcile payroll postings. It helps ensure that:

• the correct labour cost is charged to the appropriate accounts,
• deductions and net wages are recorded as liabilities, and
• payments clear those liabilities.

In many systems the control account is supported by payroll reports and reconciled to bank outflows and remittances.

Core theory and frameworks

Payroll flow: inputs, processing, outputs, and proof

Payroll can be viewed as a chain where errors enter at the inputs, become embedded during processing, and are detected (or missed) during proof.

• Inputs: authorised hours/output and agreed pay rates.
• Processing: calculation of gross pay, deductions, net pay, and employer on-costs.
• Outputs: the bank payment file and the accounting postings.
• Proof: reconciliations—payroll reports agree to ledger balances, bank payments agree to net pay, and remittances clear deduction/on-cost liabilities.

A typical cycle is:

1. Capture source data (time, output, allowances)
2. Validate and approve inputs
3. Calculate gross pay, deductions, net pay, and employer on-costs
4. Post accounting entries
5. Pay employees
6. Pay deductions and employer on-costs to third parties
7. Reconcile and investigate differences

Key payroll risks and the controls that address them

Payroll problems usually arise in three places: who is paid, how much they are paid, and where the money goes—plus a fourth risk area: late or incorrect remittances.

1. Unauthorised or fictitious payments (who is paid)
2. Keep responsibility for employee records separate from payroll processing, and require approval plus an audit trail for starters/leavers and status changes.
3. Evidence: authorised forms, change logs, and HR reports reconciled to the payroll list.
4. Incorrect pay calculation (how much is paid)
5. Use approved inputs (authorised timesheets/overtime, verified output for piecework) and run exception checks for unusual patterns (spikes in overtime, duplicate entries, unexpected allowances).
6. Evidence: approved input reports and documented exception review.
7. Misrouting or tampering with payments (where the money goes)
8. Restrict access to bank detail changes and payment file creation, require dual authorisation before release, and reconcile payroll summaries to the bank outflow promptly.
9. Evidence: payment approvals, bank file audit trails, reconciliation sign-offs.
10. Late or incorrect remittances to third parties
11. Maintain schedules of due dates for deductions and employer on-costs, and clear liabilities only when remittance is evidenced.
12. Evidence: remittance confirmations matched to liability listings.

Payroll journal entries

Where does the debit go: wages expense vs production labour?

The credit side of payroll (net wages payable and deductions payable) is broadly consistent. The main judgement is often where to charge the gross cost:

• Direct labour (production staff working on units) is commonly charged to work in progress (WIP)/production and then absorbed into finished goods and cost of sales.
• Indirect labour (supervision, maintenance, stores, production support) is usually charged to production overhead.
• Non-production labour (administration, selling, distribution) is normally charged to a period expense.

The exact ledger coding depends on the costing system and how the organisation defines direct vs indirect labour.

Standard postings

1) When payroll is calculated

• Debit labour cost accounts (split as appropriate between WIP/direct labour, production overhead, and period expenses) for gross pay
• Credit net wages payable for net pay
• Credit employee deductions payable for amounts withheld

2) When employees are paid

• Debit net wages payable
• Credit bank

3) When deductions are remitted

• Debit employee deductions payable
• Credit bank

4) Employer on-costs (recognition and payment)

When employer on-costs are incurred:

• Debit employer on-cost expense (or overhead/WIP where appropriate)
• Credit employer on-cost payable

When paid:

• Debit employer on-cost payable
• Credit bank

Labour utilisation and labour efficiency

Define productive hours

Productive hours are the hours treated as time spent on value-adding operations (for example, time spent on standard production activities). Organisations may classify certain time as non-productive—for example waiting time, breakdown time, or some set-up time—depending on internal policy and how standards are set. Whatever definition is used must be applied consistently.

Labour utilisation

Utilisation focuses on how much paid time is used productively.

• Utilisation (%) = (productive hours ÷ paid hours) × 100

Idle time reduces utilisation.

Labour efficiency

Efficiency compares the time that should have been used for the output (standard hours) to the time actually used.

• Standard hours for output = units produced × standard hours per unit
• Efficiency (%) = (standard hours ÷ actual productive hours) × 100

Above 100% indicates faster-than-standard performance; below 100% indicates slower-than-standard performance.

Link to labour variances (brief bridge)

The same building blocks underpin labour variances:

• Labour rate variance focuses on the difference between actual and standard wage rates for the hours paid/used.
• Labour efficiency variance focuses on the difference between actual hours and standard hours for the output achieved.

Utilisation, efficiency, and variances often point to the same underlying issues (planning, downtime, learning effects, quality, or supervision), but each expresses the impact in a different way.

Worked example

Narrative scenario

A manufacturing company employs workers under different pay schemes.

• Employee A is paid a time rate of £15 per hour for 37.5 standard hours per week, with overtime paid at 1.5 times the hourly rate.
• Employee B is on a piece rate of £2.50 per unit, with a weekly target of 200 units. Only accepted units are paid.
• Both employees earn a £30 attendance bonus if there is no lateness during the week.
• For exam purposes, employee deductions are simplified to a flat 28% of gross pay (18% income tax, 7% social contribution, 3% pension).
• The employer’s social contribution is 9% of gross pay.

During the week:

• Employee A works 41.5 hours and earns the attendance bonus.
• Employee B produces 220 units, of which 10 are rejected for quality. Employee B’s time record shows 8.4 paid hours, all treated as productive.
• The standard time for Employee B’s output is 0.04 hours per accepted unit.

Practical note: In real payroll systems, deductions and contributions are often threshold-based or tiered, and some elements may be treated differently. The simplified rates here are used to keep the focus on mechanics and journal entries.

Required

1. Calculate gross pay for Employee A and Employee B.
2. Determine net pay after deductions for both employees.
3. Post payroll journal entries for gross pay, employee deductions payable, net wages payable, and employer social contribution.
4. Calculate labour utilisation and labour efficiency for Employee B.
5. Identify potential payroll errors and suggest controls.

Solution

Step 1: Gross pay calculation

Employee A

• Basic pay = 37.5 × £15 = £562.50
• Overtime hours = 41.5 − 37.5 = 4.0 hours
• Overtime pay = 4.0 × (1.5 × £15) = 4.0 × £22.50 = £90.00
• Attendance bonus = £30.00

Gross pay (A) = £562.50 + £90.00 + £30.00 = £682.50

Employee B

• Accepted units = 220 − 10 = 210 units
• Piece rate pay = 210 × £2.50 = £525.00
• Attendance bonus = £30.00

Gross pay (B) = £525.00 + £30.00 = £555.00

Total gross pay = £682.50 + £555.00 = £1,237.50

Step 2: Net pay calculation (employee deductions)

Total employee deductions rate = 28%

Employee A

• Deductions = 28% × £682.50 = £191.10
• Net pay = £682.50 − £191.10 = £491.40

Employee B

• Deductions = 28% × £555.00 = £155.40
• Net pay = £555.00 − £155.40 = £399.60

Total deductions = £191.10 + £155.40 = £346.50 Total net pay = £491.40 + £399.60 = £891.00

Step 3: Employer on-cost (employer social contribution)

Employer social contribution = 9% of total gross pay:

• 9% × £1,237.50 = £111.38 (rounded to 2 dp)

Step 4: Payroll journal entries

The credits are the same regardless of how labour is analysed. The debit(s) depend on whether labour is treated as direct production cost, overhead, or period expense.

(a) At the payroll run (recognise gross pay and liabilities)

Dr Labour cost (coded to WIP/direct labour, production overhead, and/or period expense as appropriate) ..... £1,237.50 Cr Employee deductions payable .............................................. £346.50 Cr Net wages payable ................................................................ £891.00

Dr Employer social contribution cost (coded consistently with the related labour cost: WIP/overhead/expense) ............................................................... £111.38 Cr Employer social contribution payable ................................... £111.38

(b) When net wages are paid

Dr Net wages payable .................................................................. £891.00 Cr Bank ........................................................................................... £891.00

(c) When employee deductions are paid over (later date)

Dr Employee deductions payable .................................................. £346.50 Cr Bank ............................................................................................. £346.50

(d) When employer social contribution is paid over (later date)

Dr Employer social contribution payable ........................................ £111.38 Cr Bank ............................................................................................... £111.38

Step 5: Labour utilisation and efficiency (Employee B)

Given

• Paid hours = 8.4
• Productive hours = 8.4
• Accepted units = 210
• Standard time per accepted unit = 0.04 hours

Standard hours for output

• Standard hours = 210 × 0.04 = 8.4 hours

Utilisation

• Utilisation = (productive hours ÷ paid hours) × 100
• Utilisation = (8.4 ÷ 8.4) × 100 = 100%

Efficiency

• Efficiency = (standard hours ÷ actual productive hours) × 100
• Efficiency = (8.4 ÷ 8.4) × 100 = 100%

Interpretation

Time performance is exactly on standard with no idle time recorded under the organisation’s classification. However, 10 units were rejected, which reduces paid output and highlights that time performance and quality performance must both be monitored.

Step 6: Potential payroll errors and controls

Typical error risks

• Overtime hours overstated or not approved.
• Pay rates or bonuses applied incorrectly.
• Piecework output recorded incorrectly or rejected units included in paid units.
• Deductions applied using incorrect rates or incorrect gross base.
• Duplicate or unauthorised payments.

Controls

• Manager approval of time, overtime, and bonus eligibility; exception reports for unusual patterns.
• Restricted access and approval for pay rate and bank detail changes, with audit trails.
• Independent verification of accepted output for piecework pay.
• Independent review of payroll summaries before payment release; dual authorisation of payment files.
• Regular reconciliations of payroll control balances to payroll reports, bank payments, and remittances.

Common pitfalls and misunderstandings

• Recording wages at net pay: the labour cost is recorded at gross pay, not net pay.
• Treating deductions as expenses: employee deductions are liabilities until remitted.
• Inconsistent labour coding: direct labour is often treated as production cost (WIP), while indirect/non-production labour is charged to overheads or period expense.
• Overtime premium misanalysis: the premium is the excess above the basic rate; its costing treatment depends on whether overtime is job-specific or due to general inefficiency.
• Weak piecework evidence: output-based pay needs strong measurement and quality acceptance controls.
• Skipping reconciliations: unreconciled payroll balances can mask errors and unauthorised payments.

Summary

Payroll converts approved inputs (hours/output and pay rates) into gross pay, deductions, and net pay, then posts accounting entries, makes payments, and reconciles the results.

Key accounting points:

• Labour cost is recognised at gross pay, with the debit coded to WIP/direct labour, production overhead, or period expense depending on the nature of the labour.
• Employee deductions are liabilities, not income or expenses.
• Net wages payable is cleared when employees are paid.
• Employer on-costs are additional labour costs and are recorded separately with their own payable.

Labour utilisation and efficiency provide structured ways to interpret time usage and output performance and link naturally to labour rate and labour efficiency variances.

FAQ

How do you calculate overtime pay and distinguish it from the overtime premium?

Overtime pay is overtime hours multiplied by the overtime rate. The overtime premium is the extra amount above the basic rate for those hours.

Example: basic rate £15, overtime rate 1.5× = £22.50 Premium per hour = £22.50 − £15 = £7.50 Total premium = overtime hours × £7.50

A common costing approach is to charge the premium to a specific job if the overtime was requested for that job; otherwise treat it as overhead if it arises from general inefficiency.

What are key controls in the payroll process?

Focus on controls that protect: who is paid, how much is paid, where money goes, and whether remittances are made correctly and on time. Examples include approved source inputs, restricted master data changes, independent payroll review, dual-authorised payments, and reconciliations of payroll balances to bank payments and remittances.

Why is it important to reconcile payroll accounts?

Reconciliations confirm that payroll reports agree to ledger control balances, that bank payments match net pay, and that remittances clear deduction/on-cost liabilities. Differences can indicate errors, missing postings, incorrect rates, or unauthorised payments.

How do labour efficiency and utilisation measures support decision-making?

Utilisation highlights paid time that is not productive (idle time). Efficiency compares time taken to a standard for output achieved. Together they help identify planning issues, downtime, training needs, process bottlenecks, and quality impacts. They also support variance analysis by linking performance measures to cost effects.

What is the difference between gross pay and net pay?

Gross pay is total earnings before deductions. Net pay is what the employee receives after deductions. The employer records gross pay as the labour cost; deductions are recorded as liabilities until paid over.

How do employer on-costs affect labour cost analysis?

Employer on-costs increase total labour cost without changing employees’ net pay. Including them gives a more complete view of labour cost for budgeting, pricing, and performance analysis.

Glossary

Attendance bonus An additional payment earned when specified conditions are met (for example, no lateness). It forms part of gross pay when earned.

Direct labour Labour that can be traced to production output or a specific job. Often charged to WIP/production as part of inventory cost.

Employee deductions payable Amounts withheld from employees (such as tax, employee social contributions, and employee pension contributions) that must be paid to third parties.

Employer on-costs Additional employment costs borne by the employer (for example employer social contributions and certain benefits), recorded separately from employee deductions.

Employer social contribution payable A liability for employer social contributions accrued but not yet remitted.

Gross pay Total earnings for the period before deductions (basic pay, overtime, bonuses, commissions, etc.).

Idle time Paid time during which no productive work is performed (for example due to breakdowns or lack of materials). It reduces utilisation.

Indirect labour Labour that supports production but is not traceable to specific units or jobs (for example supervision or maintenance). Often treated as production overhead.

Labour efficiency A measure comparing standard hours for output achieved to actual productive hours, usually expressed as: (standard hours ÷ actual productive hours) × 100.

Labour utilisation A measure of productive hours as a proportion of paid hours: (productive hours ÷ paid hours) × 100.

Net pay The amount paid to the employee after deductions.

Overtime premium The extra cost of overtime above the basic rate for the overtime hours: overtime hours × (overtime rate − basic rate).

Payroll control account A clearing/control account used to reconcile payroll postings, supporting agreement between payroll reports, ledger balances, bank payments, and remittances.

Piece rate A pay method based on measured output (usually accepted units), requiring controls over measurement and quality acceptance.

Productive hours Hours treated as time spent on value-adding operations under the organisation’s definitions and standards.

Time rate A pay method based on hours/days worked at an agreed rate or salary-equivalent period amount.

Learning objectives

By the end of this chapter you should be able to:

• Classify non-labour overheads by function, behaviour, and traceability for reporting and internal analysis.
• Distinguish between capital and revenue expenditure and record each appropriately.
• Calculate depreciation using common methods and explain how it affects cost and profit.
• Prepare accrual and prepayment adjustments so expenses are reported in the correct period.
• Apply a practical, repeatable approach to capturing overheads that supports costing, control, and reliable financial statements.

Overview & key concepts

Non-labour overheads include costs such as rent, utilities, insurance, maintenance, marketing, and depreciation. These costs are often high in value, recur regularly, and are shared across functions—so errors in classification or cut-off can quickly distort reported profit, inventory values, and management information.

This chapter takes an integrated approach:

• Financial reporting focus: correct period recognition (accruals and prepayments), correct asset recognition (capital vs revenue), and appropriate depreciation.
• Costing focus: correct functional classification (production vs non-production) and sensible allocation/apportionment for product costing and control.

Keep both perspectives in mind: a cost can be correctly recorded in total, yet still be misanalysed if it is placed in the wrong function or cost centre.

The three essentials are:

1. Where the cost belongs (production vs administration vs selling/distribution).
2. When the cost belongs (accruals and prepayments for correct period reporting).
3. How long the benefit lasts (recognise as a non-current asset where appropriate, then depreciate/amortise over time).

Overhead and its classification

What “overhead” means in practice

Overheads support operations but cannot be economically traced to a single unit of output. They still need to be captured and analysed, but their accounting treatment depends on function and the costing approach being used.

Classification by function (where the cost sits)

• Production overheads: incurred to manufacture goods (factory rent, production utilities, maintenance of production equipment, depreciation of production machinery).
• Administration overheads: support the business overall (head office rent, finance and HR costs, general legal and professional fees).
• Selling & distribution overheads: costs of promoting and delivering products (marketing, sales staff costs, distribution-related costs).

Absorption costing vs marginal costing (critical boundary)

Under absorption costing, both variable and fixed production overheads are treated as part of product cost. Fixed production overheads are absorbed using a rate based on normal capacity, which means under-/over-absorption can arise when actual activity differs from normal capacity. Under marginal costing (for internal decision-making), fixed production overheads are treated as period costs and are not carried in inventory. Variable production overheads follow production activity, but fixed production overheads are charged in full against the period’s profit.

Classification by behaviour (how costs respond to activity)

Behaviour labels are mainly for planning and decision-making:

• Fixed: total cost is stable within a relevant range (e.g. annual rent).
• Variable: total cost changes with activity (e.g. power linked to machine usage).
• Mixed/semi-variable: contains fixed and variable elements (e.g. utilities with a standing charge plus usage).

Classification by traceability (direct vs indirect)

Direct/indirect depends on the chosen cost object (unit, batch, product line, department).

• Direct: can be traced to a cost object economically (e.g. a dedicated component used only for one product line).
• Indirect: supports multiple cost objects (e.g. factory security).

Cost centres, allocation and apportionment

Cost centres

A cost centre is a part of the organisation used to collect costs for control and analysis (for example, Production, Administration, Sales; or separate production departments).

Allocation vs apportionment

• Allocation: charging the whole cost to one cost centre because it relates entirely to that area (e.g. marketing costs to Sales).
• Apportionment: splitting a shared cost across cost centres using a reasonable driver.

Typical drivers (choose what best reflects usage):

• Rent and rates → floor area occupied
• Utilities → metered usage; if not available, machine hours or floor area as a proxy
• Welfare/canteen → headcount
• Maintenance → machine hours or number/value of machines

Consistency matters, but the driver should still be reviewed if operations change.

Accruals and prepayments

Period reporting requires expenses to be recognised in the period they relate to, regardless of when cash is paid.

Accruals (expense incurred, not yet paid)

• Recognise the expense now.
• Recognise a liability for the unpaid amount.

Journal logic (quick rule): Expense is missing → Dr expense, Cr accrual (liability).

Typical effect on the accounting equation:

• Expenses increase → profit decreases → equity decreases.
• Liabilities increase.

Prepayments (paid in advance, benefit not yet used)

• Recognise an asset for the unused portion.
• Recognise expense only for the portion consumed in the period.

Journal logic (quick rule): Expense is too high → Dr prepayment (asset), Cr expense.

Typical effect on the accounting equation:

• Asset increases (prepayment) and expense decreases (profit increases relative to the unadjusted figure).
• When the benefit is used later, the prepayment reduces and expense increases.

Capital and revenue expenditure

The decision rule

Ask: Does this spending create (or enhance) a resource that will be used over more than one accounting period?

• Capital expenditure: spending that results in a non-current asset or improves an existing non-current asset (e.g. purchasing machinery; upgrading to increase capacity or extend useful life). The cost is capitalised (recognised as an asset) and charged to profit over time through depreciation or amortisation.
• Revenue expenditure: spending that supports current operations (e.g. routine repairs, short-term licences, regular maintenance). It is charged to profit in the period it relates to (subject to accruals/prepayments).

Common judgement points

• Repairs vs improvements: repairs restore the existing condition; improvements enhance capacity, efficiency, or useful life.
• One-year software licence: usually an operating cost, with a prepayment at the reporting date if part is unused.
• Legal and professional fees: often operating costs unless directly attributable to acquiring or bringing a specific asset into the condition needed for use.

Depreciation

Depreciation is the accounting charge for using up a long-term asset over time. Instead of expensing the full purchase price immediately, the asset is recognised on the statement of financial position and a regular charge is recorded that reflects how the asset’s economic usefulness is being consumed.

In practice, depreciation:

• reduces profit for the period (it is an expense), and
• reduces the asset’s carrying amount via accumulated depreciation (or directly against the asset).

Depreciation affects reported profit, but it is not a cash payment—cash typically left the business when the asset was acquired.

When depreciation starts

Depreciation begins when the asset is available for use (i.e. in the location and condition necessary for it to operate as intended), not simply when the invoice is paid.

The “amount to depreciate” (practical view)

Think of the depreciable amount as the part of the asset’s cost you expect to “use up”. It is the purchase price (plus costs needed to get it ready for use), minus what you reasonably expect to recover on disposal at the end of its life (the residual value).

Common methods

• Straight-line: equal charge each year.
• Reducing balance: higher charge early, lower later.
• Units of output: based on usage (hours run, units produced).

Review of estimates

Useful life, residual value, and depreciation method should be reviewed regularly (typically at least annually) and updated if expectations change.

Core theory and frameworks

A practical framework for capturing non-labour overheads

Use the following workflow to reduce misstatements and improve costing information:

1. Identify the cost: what is it and what triggered it (invoice, meter reading, contract)?
2. Classify by function: production / administration / selling & distribution.
3. Assess capital vs revenue: does it create or enhance a non-current asset, or is it an operating cost?
4. Apply cut-off: accrue if incurred but unpaid; prepay if paid but not yet used.
5. Assign to cost centres: allocate where possible; apportion shared costs using a defensible driver.
6. Report appropriately:

Worked example

Narrative scenario

ABC Ltd is a manufacturing business with three cost centres: Production, Administration, and Sales. Its reporting year ends on 31 December.

During the year, ABC Ltd recorded the following non-labour overhead transactions:

1. On 1 January, the company paid £120,000 rent covering the period 1 January to 31 December for combined factory and office premises.
2. Electricity costs for the year totalled £24,000. At 31 December, £6,000 was unpaid.
3. A new machine was purchased for £50,000 on 1 January. It is expected to have a residual value of £5,000 and a useful life of 10 years.
4. Insurance of £12,000 was paid for the policy period 1 April to 31 March.
5. Maintenance costs of £8,000 were incurred and paid during the year.
6. Office supplies costing £3,000 were purchased and paid. At year-end, supplies of £500 remained unused.
7. Marketing costs of £15,000 were incurred and paid during the year.
8. A software licence fee of £5,000 was paid on 1 July, covering 12 months from that date.
9. Legal fees of £10,000 relating to a new commercial contract were incurred and paid during the year.
10. Staff training costs of £2,000 were paid. At year-end, £500 relates to a course scheduled for next year.

Required

1. Calculate the annual depreciation charge for the new machine using the straight-line method.
2. Prepare the year-end accrual and prepayment adjustments for rent, electricity, insurance, office supplies, and software.
3. Determine the total non-labour overhead expense to be recognised in profit or loss for the year (after adjustments).
4. Identify capital expenditure items and explain their treatment.
5. Explain the impact of these transactions on the financial statements.

Solution

1) Depreciation (straight-line)

Assuming the machine was available for use from 1 January, a full year’s depreciation is charged.

• Cost: £50,000
• Residual value: £5,000
• Useful life: 10 years

Depreciable amount = £50,000 − £5,000 = £45,000 Annual depreciation = £45,000 / 10 = £4,500

Journal (period end):

• Dr Depreciation expense £4,500
• Cr Accumulated depreciation £4,500

Classification note: Because the machine is used in production, this depreciation would normally be included within production overhead and absorbed into inventory/cost of sales under absorption costing (rather than always appearing as a stand-alone operating expense line).

2) Accrual and prepayment adjustments

(a) Rent

Rent paid 1 January covers the full reporting year (1 Jan–31 Dec). No accrual or prepayment at 31 December.

Expense recognised in the year: £120,000

Examiner note (costing/classification): Although cut-off is correct, rent for combined factory and office premises should usually be apportioned between Production and Administration (commonly by floor area). The production element feeds product costs under absorption costing; the administration element remains a period cost.

(b) Electricity (accrual)

Total electricity expense for the year is £24,000, with £6,000 unpaid at year-end. (Assuming the £6,000 unpaid amount has not already been recorded in payables.)

Year-end journal:

• Dr Electricity expense £6,000
• Cr Accrued expenses (liability) £6,000

Expense recognised in the year: £24,000 Liability at year-end: £6,000

(c) Insurance (prepayment)

Policy runs 1 April to 31 March. At 31 December, 9 months have been used (Apr–Dec).

Monthly cost = £12,000 / 12 = £1,000 Expense for the year = 9 × £1,000 = £9,000 Prepayment at year-end (Jan–Mar next year) = 3 × £1,000 = £3,000

Year-end journal:

• Dr Prepaid insurance (asset) £3,000
• Cr Insurance expense £3,000

(d) Office supplies (unused portion treated as asset)

Supplies purchased: £3,000 Unused at year-end: £500 Supplies consumed (expense) = £3,000 − £500 = £2,500 Asset at year-end: £500

Year-end journal:

• Dr Supplies on hand (asset) £500
• Cr Supplies expense £500

(e) Software licence (prepayment)

Licence paid 1 July covers 12 months to 30 June next year.

Used in the year: 1 July–31 December = 6 months Monthly cost = £5,000 / 12 = £416.67 Expense for the year = 6 × £416.67 = £2,500 Prepayment at year-end (Jan–Jun next year) = £2,500

Year-end journal:

• Dr Prepaid software licence (asset) £2,500
• Cr Software expense £2,500

3) Total non-labour overhead expense for the year (after adjustments)

Staff training note: £2,000 paid, with £500 relating to next year → expense this year £1,500 and a prepayment (asset) £500.

4) Capital expenditure and treatment

Machine purchase (£50,000) is capital expenditure because it provides benefits over multiple periods.

Initial recognition (on purchase):

• Dr Non-current asset (machine) £50,000
• Cr Cash / Payables £50,000

Subsequent treatment:

• Depreciate over useful life: £4,500 per year (assuming available for use from 1 January).
• Review useful life, residual value, and method regularly and adjust prospectively if expectations change.

Other items are operating costs, although several create current assets at year-end (prepayments and supplies on hand).

5) Impact on the financial statements

Statement of profit or loss

• Expenses recognised for the year reduce profit by £197,000.
• Depreciation of £4,500 reduces profit even though it is not a cash outflow in the period.

Manufacturing presentation note: Where depreciation relates to production equipment, it is typically included within production overhead. Under absorption costing, part of that overhead may be included in inventory at the reporting date (if goods remain unsold), with the remainder included in cost of sales for goods sold.

Statement of financial position (year-end balances created by the adjustments)

• Non-current assets: machine at cost £50,000 less accumulated depreciation £4,500 → carrying amount £45,500.
• Current assets:
• Current liabilities:

Accounting equation (high-level movement)

• The machine increases assets; depreciation reduces equity (via lower profit) and reduces the asset’s carrying amount through accumulated depreciation.
• Accrued electricity increases liabilities and reduces equity (via the expense).
• Prepayments and supplies on hand increase current assets and prevent overstating expenses in the current period.

Common pitfalls and misunderstandings

• Blurring absorption and marginal costing: under absorption costing, production overheads can be included in inventory; under marginal costing, fixed production overheads are period costs.
• Ignoring normal capacity for fixed production overhead absorption: this is a common cause of under-/over-absorption.
• Missing cut-off adjustments: failing to accrue unpaid costs or defer prepaid amounts misstates both profit and net assets.
• Treating cash paid as the expense: payment timing does not determine the expense for the period.
• Depreciating from the wrong date: depreciation starts when the asset is available for use, not when paid for.
• Ignoring residual value: depreciation should be based on the depreciable amount.
• Incorrect time apportionment: insurance and licences often span reporting dates; count months carefully.
• Capitalising routine maintenance: routine servicing is usually an expense; only enhancements are capitalised.
• Forgetting that unused consumables are assets: supplies on hand should not remain in expense at year-end.
• Weak apportionment logic: shared overhead drivers must be reasonable and applied consistently, then reviewed when operations change.

Summary

Non-labour overheads must be captured accurately to avoid distorted profit, inventory values, and performance measures. High-quality treatment requires:

• Correct functional classification (production vs non-production),
• Correct period cut-off using accruals and prepayments,
• Correct capitalisation decisions for non-current assets, and
• Appropriate depreciation, starting when assets are available for use and reviewed regularly.

A disciplined workflow—identify, classify, assess capital vs revenue, apply cut-off, and assign to cost centres—supports both reliable reporting and effective internal control.

FAQ

What is the difference between capital and revenue expenditure?

Capital expenditure results in a non-current asset or improves an existing one, providing benefits over more than one period. It is capitalised and then charged to profit over time through depreciation or amortisation. Revenue expenditure supports current operations and is charged to profit in the period it relates to (after accrual/prepayment adjustments where needed).

How do accruals and prepayments change the financial statements?

Accruals recognise expenses that relate to the period even if unpaid, increasing liabilities and reducing profit. Prepayments recognise that part of a payment relates to future periods, increasing assets and reducing the current period expense (thereby increasing profit relative to the unadjusted figure).

Why is depreciation important?

Depreciation reflects the consumption of a non-current asset’s economic usefulness over time. It ensures profit includes a fair charge for using long-term assets and prevents the statement of financial position from carrying assets at amounts that ignore usage and wear.

Which depreciation method should be used?

Choose a method that reflects how the asset’s benefits are consumed. Straight-line suits stable usage, reducing balance suits higher early consumption, and units of output suits assets where usage can be measured reliably.

How do you choose an apportionment basis for overheads?

Select a driver that best reflects what causes the cost (floor area, machine hours, headcount, metered usage). The basis should be reasonable, consistently applied, and updated when operational realities change.

What happens if overheads are misclassified?

Misclassification can misstate profit and net assets. Treating capital expenditure as an expense understates assets and profit; treating a current expense as an asset overstates profit and assets. Misclassifying production overheads can also distort inventory and cost of sales.

Glossary

Overhead A cost that supports activities but cannot be economically traced to a single unit of output.

Production overhead Indirect costs incurred to manufacture goods (for example, factory rent, production utilities, depreciation of production machinery).

Non-production overhead Indirect costs not directly linked to manufacturing, such as administration and selling/distribution costs.

Cost centre A part of the organisation used to collect costs for control and analysis.

Allocation Charging an entire cost to one cost centre because it relates wholly to that centre.

Apportionment Splitting a shared cost across cost centres using a reasonable driver.

Accrual A year-end adjustment recognising an expense that relates to the period but remains unpaid, creating a liability.

Prepayment A year-end adjustment recognising that part of a payment relates to a future period, creating an asset until consumed.

Capital expenditure Spending that results in a non-current asset or enhances an existing non-current asset, recognised as an asset and charged to profit over time.

Revenue expenditure Spending that supports current operations, charged to profit in the period it relates to (after cut-off adjustments).

Depreciation The periodic expense reflecting the consumption of a non-current asset’s economic usefulness over its useful life.

Residual value The amount expected to be recovered on disposal of an asset at the end of its useful life (after considering disposal proceeds and costs where relevant).