Bank reconciliation is the process of comparing the company’s internal cash book (or bank ledger account) with the bank statement to identify and explain any differences between the two balances. It is one of the most fundamental internal controls in accounting and is performed regularly – typically monthly – to ensure the accuracy of the financial records.
The cash book and bank statement often show different balances at the same date because of timing differences (cheques issued but not yet cleared, deposits in transit) and errors or omissions in either record.
Why Bank Reconciliation Matters
| Reason | Explanation |
|---|---|
| Accuracy | Ensures the cash balance on the balance sheet is correct |
| Fraud detection | Identifies unauthorised transactions |
| Error identification | Catches data entry mistakes, duplicates, and omissions |
| Cash management | Confirms the actual cash available for payments |
| Audit readiness | Auditors expect regular reconciliations as part of internal controls |
| Statutory compliance | Reliable cash records underpin the trial balance and financial statements |
The Reconciliation Process
Step 1: Compare the Balances
Start with the closing balance per the cash book and the closing balance per the bank statement at the same date. The two figures will rarely match exactly.
Step 2: Identify Reconciling Items
Work through both records to find items that appear in one but not the other:
| Reconciling Item | In Cash Book? | On Bank Statement? |
|---|---|---|
| Unpresented cheques (issued but not yet cashed) | Yes (as payment) | No (not yet cleared) |
| Deposits in transit (banked but not yet credited) | Yes (as receipt) | No (not yet credited) |
| Bank charges and interest | No (not yet recorded) | Yes |
| Direct debits and standing orders | Sometimes missing | Yes |
| BACS receipts from customers | No (not yet recorded) | Yes |
| Errors in cash book | Incorrect entry | Correct |
| Errors by bank | Correct | Incorrect entry |
Step 3: Adjust the Cash Book
Update the cash book for items that appear on the bank statement but have not been recorded:
- Bank charges
- Interest received
- Direct debits
- BACS receipts from customers
- Returned cheques (dishonoured)
Step 4: Prepare the Reconciliation Statement
Bank Reconciliation Statement: Worked Example
Starting Figures
| Item | £ |
|---|---|
| Balance per cash book (before adjustments) | 12,450 |
| Balance per bank statement | 14,780 |
Cash Book Adjustments
Items on the bank statement not yet in the cash book:
| Item | Debit (£) | Credit (£) |
|---|---|---|
| BACS receipt from customer | 2,500 | |
| Bank charges | 85 | |
| Direct debit (insurance) | 350 | |
| Interest received | 15 | |
| Dishonoured cheque | 200 |
Adjusted cash book balance = £12,450 + £2,500 + £15 - £85 - £350 - £200 = £14,330
Reconciliation Statement
| Item | £ |
|---|---|
| Balance per bank statement | 14,780 |
| Add: deposits in transit | 800 |
| Less: unpresented cheques | (1,250) |
| Adjusted bank balance | 14,330 |
The adjusted cash book balance (£14,330) now equals the adjusted bank balance (£14,330). The reconciliation is complete.
Journal Entries for Adjustments
After identifying items on the bank statement not yet in the cash book, journal entries bring the cash book up to date:
Recording a BACS Receipt
| Account | Debit (£) | Credit (£) |
|---|---|---|
| Bank | 2,500 | |
| Accounts receivable | 2,500 |
Recording Bank Charges
| Account | Debit (£) | Credit (£) |
|---|---|---|
| Bank charges (expense) | 85 | |
| Bank | 85 |
Recording a Dishonoured Cheque
| Account | Debit (£) | Credit (£) |
|---|---|---|
| Accounts receivable | 200 | |
| Bank | 200 |
The customer’s debt is reinstated, and the cash book balance is reduced.
Common Reconciling Items
Timing Differences
These resolve themselves automatically when the transaction clears:
| Item | Explanation |
|---|---|
| Unpresented cheques | Cheques issued to suppliers that have not yet been cashed |
| Deposits in transit | Cash or cheques banked but not yet credited by the bank |
| BACS payment timing | Payments initiated but not yet processed |
Items Requiring Cash Book Update
These need journal entries to correct the cash book:
| Item | Explanation |
|---|---|
| Bank charges | Monthly or transaction-based charges not recorded until the statement arrives |
| Direct debits | Regular payments that may not have been entered |
| Standing orders | Fixed regular payments that may be missing |
| Interest | Interest charged on overdrafts or received on credit balances |
| BACS receipts | Customer payments received directly into the bank |
| Dishonoured cheques | Cheques received from customers that have bounced |
Errors
| Error Type | Where | Action |
|---|---|---|
| Transposition error (e.g., £540 recorded as £450) | Cash book | Correct the cash book |
| Duplicate entry | Cash book | Reverse the duplicate |
| Wrong account | Cash book | Transfer to correct account |
| Bank error | Bank statement | Notify the bank |
Frequency of Reconciliation
| Business Size | Recommended Frequency |
|---|---|
| Micro / sole trader | Monthly |
| Small company | Monthly |
| Medium company | Weekly or monthly |
| Large company | Daily |
| High-volume businesses (retail, e-commerce) | Daily |
More frequent reconciliation catches errors and fraud faster. Modern accounting software can automate much of the matching process through bank feeds that import transactions directly from the bank.
Bank Reconciliation and the Trial Balance
The cash book balance, after reconciliation adjustments, feeds into the trial balance. If the bank reconciliation is not performed or is inaccurate:
- The cash balance on the balance sheet will be wrong
- Other balances (debtors, creditors, expenses) may also be incorrect if adjusting entries are missed
- The trial balance may not balance, triggering time-consuming investigation
Bank Reconciliation and the Audit
For companies subject to audit, bank reconciliations are a key area of testing:
- Auditors review the year-end bank reconciliation and may test interim reconciliations
- They confirm balances directly with the bank using bank confirmation letters
- They verify that reconciling items have cleared after the year end
- Old or unusual reconciling items attract scrutiny as potential signs of error or fraud
A well-maintained history of monthly reconciliations demonstrates strong internal controls and speeds up the audit process.
Bank Reconciliation in Practice
Automated Bank Feeds
Most modern accounting software (Xero, QuickBooks, Sage) supports automatic bank feeds that:
- Import transactions from the bank daily
- Suggest matches against recorded invoices and bills
- Flag unmatched items for manual review
- Reduce the manual effort of reconciliation significantly
Multiple Bank Accounts
Many businesses have several bank accounts (current account, savings account, credit card, foreign currency). Each requires its own reconciliation. The total of all bank balances per the cash book should agree with the bank line on the balance sheet.
Petty Cash
Petty cash is a separate cash fund, not held at the bank. It has its own reconciliation process: the physical cash on hand plus receipts for expenditure should equal the petty cash float.
Common Mistakes
| Mistake | Consequence |
|---|---|
| Not reconciling regularly | Errors and fraud go undetected |
| Ignoring old reconciling items | May indicate lost cheques, missing receipts, or fraud |
| Forcing the reconciliation to balance | Masks underlying errors |
| Not recording bank adjustments in the cash book | Cash book balance remains incorrect |
| Reconciling to the wrong bank statement date | Creates false discrepancies |
Bank Reconciliation and Cash Flow
An accurate bank reconciliation is the foundation for reliable cash flow reporting. The reconciled bank balance is the starting point for cash flow forecasting, and understanding the timing of unpresented cheques and deposits in transit helps predict near-term cash movements.
Businesses that track their reconciliation closely can also monitor how quickly accounts receivable convert to cash and how long accounts payable remain unpaid, both critical for managing working capital.