Preparing the Trial Balance

Learning objectives

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

• explain why a trial balance is prepared and how it supports the preparation of financial statements
• classify ledger accounts by normal balance and place them in the correct debit or credit column
• compile a trial balance by extracting closing ledger balances and casting the totals
• investigate an imbalance, including the correct use of a suspense account while errors are located
• interpret what a trial balance does (and does not) confirm about the accuracy of the records

Overview & key concepts

A trial balance is a list of closing balances extracted from the ledger at a specific date (often at the end of the reporting period). It is prepared as a practical check that the double-entry system has been applied consistently: the sum of debit balances should equal the sum of credit balances.

A trial balance is a useful checkpoint, but it is not a guarantee that the accounting records are free from error. Some mistakes do not prevent the trial balance from agreeing.

Core theory and frameworks

1) Purpose and limitations of a trial balance

Purpose

• to bring together all ledger closing balances in one place
• to check, at a basic level, that debits and credits have been recorded in equal totals
• to provide an organised starting point for preparing financial statements and period-end adjustments

Limitations

A trial balance can still agree even when:

• the wrong accounts are used (but debits still equal credits)
• transactions are recorded at the wrong amount on both sides
• a transaction is omitted completely
• errors of principle or presentation exist (for example, misclassifying an expense as an asset)

2) The accounting equation and the trial balance

The trial balance reflects the accounting equation:

Assets = Liabilities + Equity

• balances that representassetsusually appear asdebits
• balances that representliabilitiesandequityusually appear ascredits

Income and expenses affect equity through profit or loss, so:

• incomenormally has acreditbalance
• expensesnormally have adebitbalance

3) Normal balances: practical classification rules

Common normal balances

• Assets:debit
• Liabilities:credit
• Equity (capital/share capital):credit
• Income (revenue):credit
• Expenses:debit

Accounts that commonly cause confusion

(a) Cash vs credit transactions

• Cash sale:debit cash/bank, credit sales revenue
• Credit sale:debit receivables, credit sales revenue

Both create sales revenue as a credit balance. The difference is whether the debit goes to cash/bank or receivables.

(b) Operating expenses

Rent, salaries, utilities and similar running costs are normally debit balances. If unpaid at the reporting date, a separate accrual (liability) appears as a credit balance.

(c) Inventory and cost of sales

In many basic systems, purchases are recorded as a debit balance during the period. That figure is not automatically the same as cost of sales, which typically requires inventory adjustments (opening/closing inventory and any returns/discounts) depending on the system used.

(d) Income received in advance (deferred income)

If a customer pays before goods are delivered or a service is carried out, the amount received is not yet earned. At the reporting date it is shown as a liability (credit) because the business still owes the customer the goods or service (or a refund if it cannot deliver). When the goods are delivered or the service is carried out, the liability reduces and the amount earned is recognised as income.

(e) Notes payable and interest

A note payable (loan principal) is normally a credit balance (liability).
Interest is split:

• interest expense:debit
• interest payable (accrued):credit (if unpaid at period end)

(f) Allowance against receivables (loss allowance) — previously called “allowance for doubtful debts”

Not every receivable will be collected in full. Rather than reducing individual customer balances, an allowance account is used to reduce receivables overall. This allowance normally has a credit balance and is presented against trade receivables so the statement of financial position shows a more realistic collectible amount. The corresponding expense is recorded in profit or loss as an impairment/bad debt expense (a debit).

(g) Equity movements: drawings vs dividends

• Drawings(sole trader/partnership): debit (reduces capital/equity; not an expense)
• Dividends(company): debit (distribution to owners; not an operating expense)
• Capital/share capital:credit

(h) Contra-asset accounts

Contra-assets reduce the carrying amount of a related asset and normally carry a credit balance (for example, accumulated depreciation). They appear separately in the ledger and trial balance.

4) Procedure for preparing a trial balance

1. Extract theclosing balanceon each ledger account at the reporting date.
2. Enter each balance in thedebitorcreditcolumn based on the ledger balance.
3. Cast the totals(sum each column) and check whether the totals agree.
4. If totals do not agree,investigatethe difference. Do not “force” agreement by inventing a balance.

5) Handling an imbalance: investigation and suspense

If the trial balance totals do not agree, you must find and correct the error(s). Where the financial statements are being prepared before the error is found, the difference may be posted temporarily to a suspense account so the records can be processed, but the suspense balance must be cleared once the error is identified.

Key cautions

• A suspense account istemporary. It is not a solution—only a holding place while you investigate.
• Do not “plug” a missing figure into capital (or any other account) purely to make totals agree. You must be able to explain what was wrong and how it was corrected.

6) Diagnosing differences: exam-friendly patterns

Use the size and pattern of the difference to guide your search:

• Difference equals a specific balance:a balance may have been omitted from the trial balance or extracted incorrectly.
• Difference is exactly double a figure:a balance may have been placed on the wrong side (debit instead of credit, or vice versa).
• Difference divisible by 9:suggests atranspositionerror (e.g., 54 typed as 45) or aslideerror (e.g., decimal shift).
• Difference is a multiple of 10 / 100 / 1,000:suggests an extra or missing zero, or a decimal point error.
• Odd or irregular differences:may indicate multiple errors.

Worked example

Narrative scenario

ABC Retailers has the following transactions and balances for the period:

• Cash sales: $50,000
• Credit sales: $100,000
• Purchases of inventory: $70,000, of which $30,000 is on credit
• Rent paid: $20,000
• Salaries paid: $15,000
• Owner’s drawings: $5,000
• Prepaid insurance: $2,000
• Accrued utility expenses: $1,000
• Depreciation expense: $3,000
• Bank overdraft at period end: $10,000
• Accumulated depreciation at period end: $8,000
• Opening trade receivables: $20,000

Note on the bank figure: we are told the period-end bank position is an overdraft of $10,000, so we use that as the closing bank balance rather than reconstructing the bank ledger from receipts and payments.

Assumptions for this illustration (based only on the information given):

• no receipts from credit customers are stated, so trade receivables remain unpaid during the period
• no payments to credit suppliers are stated, so the credit portion of purchases remains unpaid at period end

Required

1. Prepare the trial balance for ABC Retailers.
2. Identify any discrepancies in the trial balance.
3. Post the difference to suspense (where needed) and explain how suspense is cleared once the error is found.
4. Classify each account by its normal balance.
5. Explain the impact of the trial balance on financial statements.

Solution

Step 1: Determine the closing balances for extraction

Sales revenue (credit)

• Total sales revenue = $50,000 + $100,000 =$150,000 (credit)

Trade receivables (debit)

• Opening receivables = $20,000
• Add credit sales = $100,000
• Less receipts: none stated
• Closing trade receivables =$120,000 (debit)

Purchases and expenses (debit)

• Purchases =$70,000 (debit)
• Rent expense =$20,000 (debit)
• Salaries expense =$15,000 (debit)
• Utility expense =$1,000 (debit)
• Depreciation expense =$3,000 (debit)
• Drawings =$5,000 (debit)
• Prepaid insurance (asset) =$2,000 (debit)

Liabilities and contra-asset (credit)

• Trade payables (credit purchases) =$30,000 (credit)
• Accrued utilities (utilities payable) =$1,000 (credit)
• Bank overdraft =$10,000 (credit)
• Accumulated depreciation =$8,000 (credit)

Step 2: Trial balance as extracted (showing the imbalance)

Discrepancy: debit total exceeds credit total by $37,000.

Step 3: Post the difference to suspense (temporary step)

To allow further processing while investigating, the difference can be posted to a suspense account on the credit side (because the credit total is short).

Important: suspense is temporary. You must still find the underlying error and clear suspense.

Step 4: Clearing suspense once the error is found (illustration)

Assume that during investigation you discover the owner’s capital balance of $37,000 (credit) had been omitted from the trial balance extraction.

Correcting journal to clear suspense

Because the suspense account was credited to make the trial balance agree temporarily, it must now be removed by debiting it. The omitted capital balance is then brought in by crediting owner’s capital:

• Dr Suspense account $37,000
• Cr Owner’s capital $37,000

After posting this correcting entry:

• thesuspense account returns to nil, and
• owner’s capitalis included as a normal credit balance in the trial balance.

Corrected trial balance (no suspense remaining)

Step 5: Classification by normal balance (applied to the example)

• Assets (debit):trade receivables, prepaid insurance
• Expenses (debit):purchases, rent, salaries, utilities, depreciation
• Contra-asset (credit):accumulated depreciation
• Liabilities (credit):trade payables, accrued utilities, bank overdraft
• Income (credit):sales revenue
• Equity movement (debit):drawings
• Equity (credit):owner’s capital

Step 6: Impact on financial statements

Once the trial balance has been extracted and (where necessary) corrected, it provides the base balances used to prepare financial statements:

• income and expense balances feed into profit or loss (subject to period-end adjustments and closing entries)
• assets, liabilities and equity balances support the statement of financial position

A balanced trial balance improves reliability, but classification and adjustments still matter (for example, inventory adjustments, accruals and prepayments, depreciation, and allowances against receivables).

Common pitfalls and misunderstandings

• Forcing agreement by inventing a balance:if the trial balance does not agree, do not “plug” the difference into capital (or anywhere else). Investigate the error, and use suspense only as a temporary holding account.
• Leaving suspense uncleared:suspense should return tonilonce the error is corrected.
• Putting sales revenue in the debit column:sales revenue normally has acreditbalance.
• Mixing up cash and credit sales:both increase revenue; the debit goes to cash/bank or receivables depending on the sale type.
• Treating drawings/dividends as expenses:they are distributions to owners and reduce equity; they are not operating costs.
• Forgetting the two-sided nature of accruals:typically both an expense (debit) and an accrual liability (credit) are needed.
• Misclassifying income received in advance:normally acreditbalance (liability) until earned.
• Confusing purchases with cost of sales:purchases may need inventory adjustments before cost of sales is determined.
• Netting accumulated depreciation against the asset in the trial balance:accumulated depreciation is normally kept as a separatecreditbalance.
• Misplacing the allowance against receivables:allowance is normally acreditbalance (contra-asset); the related expense isdebit.
• Ignoring pattern clues:differences divisible by 9 can indicate transposition/slide errors; round multiples can indicate extra or missing zeros.

Summary

A trial balance lists closing ledger balances in debit and credit columns and is cast to check that the totals agree. It supports the preparation of financial statements and can highlight basic posting or extraction errors. However, it cannot detect every type of mistake. If the trial balance does not agree, the correct response is to investigate and correct the error(s). A suspense account may be used temporarily while the cause is found, but it must be cleared once the error is identified.

FAQ

What does a trial balance confirm?

It confirms that, for the balances extracted, debits and credits add up equally. It does not confirm that every transaction has been recorded correctly, classified correctly, or recorded at all.

Should I “plug” a difference into capital to make totals agree?

No. Do not invent a balancing figure. Investigate the error. If statements must be processed before the error is found, post the difference temporarily to a suspense account and clear it once corrected.

When is a suspense account used?

A suspense account is used only when the trial balance does not agree and the difference must be carried temporarily while the underlying error is located. It should be cleared as soon as the error is corrected.

How do I know whether suspense is a debit or credit?

If the debit total is higher, credits are short, so suspense is normally a credit. If the credit total is higher, suspense is normally a debit.

Are drawings and dividends the same thing?

They are both distributions to owners, but they apply to different business forms. Drawings are typically used for sole traders/partnerships; dividends are typically used for companies. Both reduce equity and are not operating expenses.

How can the difference help me find errors quickly?

A difference equal to a specific balance suggests omission. A difference exactly double a figure suggests a balance placed on the wrong side. A difference divisible by 9 suggests transposition/slide errors. Round multiples often suggest zero/decimal mistakes.

Glossary

Trial balance
A list of closing ledger balances arranged into debit and credit columns and cast to check that the totals agree.

Normal balance
The side (debit or credit) on which an account typically increases. Most assets and expenses increase on the debit side; most liabilities, income and equity increase on the credit side.

Casting
Summing each trial balance column to check agreement.

Suspense account
A temporary account used to hold the difference when the trial balance does not agree while the underlying error is investigated and corrected.

Accrual
A liability recognised when an expense has been incurred but not yet paid at the reporting date.

Prepayment
An asset recognised when payment is made in advance and the related benefit will be received in a future period.

Income received in advance (deferred income)
A liability arising when cash is received before goods are delivered or a service is carried out; the amount is recognised as income only when earned.

Contra-asset
An account that offsets an asset’s carrying amount and normally has a credit balance (for example, accumulated depreciation or an allowance against receivables).

Allowance against receivables (loss allowance)
A credit balance used to reduce trade receivables overall to the amount expected to be collected. (Often referred to in older terminology as “allowance for doubtful debts”.)

Bank overdraft
A credit balance arising when withdrawals exceed the funds available in the bank account; commonly presented as a liability.