Reconciling Cash and Bank

Learning objectives

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

• Explain why the bank balance in an entity’s records can differ from the balance shown by the bank.
• Update the cash book (bank column) for items shown on the bank statement that are not yet in the entity’s records.
• Prepare a bank reconciliation statement using timing differences (and any bank errors).
• Identify and correct common cash book errors, including wrong amounts and duplicate postings.
• Present reconciliations clearly when a bank account is overdrawn, using a consistent sign convention.

Overview & key concepts

Reconciling cash and bank means explaining, in a structured way, why two records of the same bank account do not agree at a particular date:

• The cash book (bank column)is the entity’s own record of bank receipts and bank payments.
• The bank statementis the bank’s record of movements on the account.

Differences are normal. A reconciliation demonstrates that the difference is understood and that the accounting records are complete and accurate.

A bank reconciliation is normally prepared in two stages:

1. Update the cash book firstfor valid items on the bank statement that are not yet in the entity’s records. This gives theadjusted cash book balance.
2. Reconcile the adjusted cash book balance to the bank statement balanceusing timing differences (and any bank errors).

In exam answers, show the adjusted cash book balance first, then a separate reconciliation statement—do not mix timing differences into the cash book.

Cash book and bank statement

What the cash book shows

For reconciliation purposes, the focus is the bank column of the cash book (or the bank ledger account). It records:

• Receipts into the bank(e.g. customer payments, bank interest received)
• Payments from the bank(e.g. supplier payments, standing orders, direct debits)

What the bank statement shows

A bank statement lists transactions processed by the bank for the period. It may include items the entity only becomes aware of when the statement is received, such as:

• Bank charges
• Standing orders and direct debits
• Interest credited or debited
• Dishonoured (returned) cheques
• Items that may beerrors by the bank

A useful distinction:

• Unrecorded bank transactionsare valid transactions processed by the bank (for example, charges, interest, direct debits, standing orders) that are simplymissing from the cash bookand must be recorded there.
• Bank errorsarise when the bank processes something incorrectly (for example, the wrong amount, the wrong counterparty, or a duplicate posting). These are dealt with on the bank side until corrected by the bank.

Debits and credits: avoid the sign trap

The cash book and the bank statement may use the words debit and credit differently, and statement formats vary by bank and country. Do not rely on the labels alone.

In the cash book (entity’s records)

Treat the bank like a ledger account:

• Debit the bankto increase the bank balance (money in).
• Credit the bankto decrease the bank balance (money out).

If the bank balance is positive, the bank account is an asset (a debit balance).
If the account is overdrawn, it becomes a liability (a credit balance).

On the bank statement (bank’s records)

Many statements follow the pattern that:

• a line labelledcreditincreases the statement balance, and
• a line labelleddebitreduces the statement balance.

However, because formats differ, the exam-proof anchor rule is:

Treat each bank statement line by its effect on the bank statement balance: does it increase the balance or decrease it?
Use that effect to decide the direction of the cash book entry and the reconciliation adjustment.

For example, if the statement shows a bank charge that reduces the statement balance and it is missing from the cash book, the cash book must credit Bank (because it reduces the entity’s bank balance).

Overdrafts

An overdraft arises when the account goes below zero. Two points matter:

Presentation in the entity’s records

• Positive bank balance: asset
• Overdrawn bank balance: liability

Effect on a bank reconciliation

An overdraft does not create a reconciling item by itself. The reconciliation steps are unchanged; the main risk is incorrect signs.

Exam presentation note: If either balance is overdrawn, label it clearly as “overdraft” and keep a consistent sign convention throughout (for example, show overdrafts in brackets or as negative figures). Adjustments still follow the effect on the balance you start from.

Updating the cash book

Update the cash book (bank column) for valid items shown on the bank statement that have not yet been recorded by the entity. Typical items include:

• Bank charges
• Direct debits and standing orders
• Bank interest
• Direct credits (e.g. receipts paid directly into the bank)
• Dishonoured cheques
• Corrections to errors in the cash book (wrong amount, duplicate posting, etc.)

Do not enter timing differences into the cash book.
Items such as outstanding lodgements and unpresented cheques (unprocessed payments) are already recorded by the entity; they remain outstanding only because the bank has not processed them by the statement date.

The cash book balance after these updates is the adjusted cash book balance.

Preparing the bank reconciliation statement

After updating the cash book, the remaining difference is usually explained by:

• Outstanding lodgements(recorded by the entity as received, not yet processed by the bank)
• Unpresented cheques (unprocessed payments)(recorded by the entity as paid, not yet processed by the bank)
• Bank errors(if identified): these remain on the bank side until corrected by the bank

How to decide whether to add or subtract (exam-proof method)

Start with whichever balance the question tells you to start from (bank statement or adjusted cash book). For each reconciling item, ask:

If this item had already been processed on the record I am starting from, would that starting balance be higher or lower?

• If it would make the starting balancehigher,addit.
• If it would make the starting balancelower,subtractit.

Examples when starting from the bank statement:

• An outstanding lodgement would increase the statement balance once credited →add.
• An unpresented cheque (unprocessed payment) would reduce the statement balance once processed →subtract.

The same logic applies if starting from the adjusted cash book—consider the effect on the cash book balance instead.

Worked example

Narrative scenario

ABC Ltd maintains a cash book to record bank receipts and bank payments. At 31 December 2025, the cash book shows a bank balance of $5,000. The bank statement for the same date shows a balance of $5,740.

The following items are relevant:

1. Bank charges of$50appear on the bank statement but are not in the cash book.
2. A direct debit of$200for utilities appears on the bank statement but is not in the cash book.
3. A standing order of$150for rent appears on the bank statement but is not in the cash book.
4. Bank interest of$30has been credited by the bank but is not recorded in the cash book.
5. A direct credit of$500from a customer has been credited by the bank but is not recorded in the cash book.
6. A cheque for$300issued to a supplier has not yet been presented for payment.
7. A deposit of$400made by ABC Ltd has not yet been credited by the bank.
8. A customer cheque for$100has been dishonoured and appears on the bank statement, but the cash book has not been updated.
9. A cash book error: a payment of$90was recorded as$900.
10. The bank statement also shows anoverdraft facility limit of $1,000(a limit, not a transaction).

Required

1. Update the cash book (bank column) for items not yet recorded.
2. Prepare a bank reconciliation statement at 31 December 2025.
3. Correct the cash book error.
4. Explain how the overdraft information affects interpretation and presentation.

Solution

1) Update the cash book (bank column)

Start with the cash book bank balance: $5,000

Record valid statement items missing from the cash book:

Adjusted cash book bank balance: $5,840

Double entry (summary of the cash book updates):

• Dr Bank charges expense $50; Cr Bank $50
• Dr Utilities expense $200; Cr Bank $200
• Dr Rent expense $150; Cr Bank $150
• Dr Bank $30; Cr Interest income $30
• Dr Bank $500; Cr Trade receivables (customer) $500
• Dr Trade receivables (customer) $100; Cr Bank $100
• To correct the $90 recorded as $900: Dr Bank $810; Crthe same account originally debitedwhen the $900 was posted (e.g. the supplier account or the relevant expense) $810

2) Bank reconciliation statement at 31 December 2025

Only timing differences remain after the cash book has been updated.

Bank reconciliation statement (starting from bank statement balance):

• Bank statement balance at 31 December 2025 ..................................$5,740
• Add: Outstanding lodgements (deposit not yet credited) ..................$400
• Less: Unpresented cheques (unprocessed payments) ........................($300)
• Reconciled balance (agrees to adjusted cash book) ..........................$5,840

3) Identify and correct the cash book error

A payment of $90 was entered as $900, overstating the payment by $810.

Correction required:

• Increase the bank balance by$810, and
• Credit thesame account originally debitedfor the $900 entry by$810(so only the excess is removed).

4) Impact of the overdraft facility information

The overdraft facility limit shown on the statement is not a movement on the account and is not an adjustment in the reconciliation.

Its relevance is interpretive and presentational:

• It explains how the account can go below zero (a liability position).
• It increases the risk of sign errors when balances are described and adjustments are applied.

If either balance were actually overdrawn, it should be labelled clearly as an overdraft, shown consistently (for example, in brackets), and each reconciling item should still be treated by its effect on the starting balance used in the reconciliation.

Common pitfalls and misunderstandings

• Updating the cash book with timing differences:
• Outstanding lodgements and unpresented cheques (unprocessed payments) do not belong in the cash book.
• Labelling unrecorded bank transactions as “bank errors”:
• Charges, interest, direct debits and standing orders are usually valid transactions that must be recorded in the cash book. A bank error exists only where the bank has processed an item incorrectly.
• Using bank statement labels blindly:
• Because statement formats differ, focus on whether each line increases or decreases the statement balance.
• Treating an overdraft or overdraft limit as a reconciling item:
• It affects how the balance is described (asset vs liability), not the arithmetic of the reconciliation.
• Ignoring dishonoured cheques:
• A dishonoured cheque reverses a receipt: reduce the bank balance and reinstate the customer receivable.
• Correcting bank errors in the cash book:
• Bank errors remain on the bank side until corrected by the bank; the entity’s records are updated only when appropriate.
• Correcting the wrong ledger account for a cash book error:
• Corrections should target the same account originally affected, so only the excess or shortfall is reversed.

Summary and further reading

Reconciling cash and bank brings the entity’s bank record (cash book) into agreement with the bank’s record (statement). A reliable method is:

1. Update the cash book for valid statement items not yet recorded, producing theadjusted cash book balance.
2. Prepare the reconciliation using timing differences (and any bank errors), applying each adjustment based on itseffect on the balance you start from.
3. Present overdrawn balances clearly and keep signs consistent.

Further study should focus on cash controls, error correction, and the presentation of bank balances as assets or liabilities depending on whether they are in credit or overdrawn.

FAQ

Why do the cash book and bank statement often differ at the same date?
Because one record may include transactions the other has not yet processed (timing differences), and because the bank may process valid transactions the entity has not yet recorded (such as charges, direct debits, and interest).

What must be updated in the cash book before doing a reconciliation?
Valid items shown on the bank statement that the entity has not yet recorded, including charges, standing orders, direct debits, interest, direct credits, dishonoured cheques, and corrections for cash book errors.

Are outstanding lodgements and unpresented cheques (unprocessed payments) recorded in the cash book?
No. They have already been recorded by the entity. They remain in the reconciliation until the bank processes them.

How should a dishonoured cheque be treated?
Reduce the bank balance (because the receipt did not clear) and increase the customer receivable (because the customer still owes the amount).

Does an overdraft change the reconciliation method?
No. The steps are the same, but overdrawn balances increase the risk of sign errors. Label overdrafts clearly and keep a consistent sign convention.

Glossary

Bank reconciliation
A structured explanation of the difference between the bank balance in the entity’s records and the balance on the bank statement at a particular date.

Cash book (bank column)
The entity’s record of money received into and paid out of its bank account.

Bank statement
The bank’s record of transactions processed on the account and the resulting balance.

Unrecorded bank transaction
A valid transaction processed by the bank (for example, charges, interest, direct debits, standing orders) that has not yet been recorded in the cash book.

Bank error
A transaction processed incorrectly by the bank (for example, wrong amount, wrong counterparty, or duplicate posting) that remains on the bank side until corrected.

Outstanding lodgements
Amounts paid into the bank and recorded by the entity, but not yet processed (credited) by the bank by the statement date.

Unpresented cheques (unprocessed payments)
Payments recorded by the entity as paid but not yet processed (debited) by the bank by the statement date.

Dishonoured cheque
A cheque received and recorded by the entity that the bank later returns unpaid; it reverses the receipt and the customer still owes the amount.

Direct debit
A payment collected from the bank account by a supplier under an agreed authorisation (often recurring).

Standing order
A regular fixed payment instructed by the account holder and paid by the bank on specified dates.

Overdraft
An overdrawn bank position where the account is below zero; in the entity’s records it represents an amount owed to the bank.