How do we independently check the sales and purchases ledgers and the bank balance?
The purpose and preparation of sales ledger and purchases ledger control accounts, the sources of the entries, the bank reconciliation statement, and how each acts as a check on the accuracy of the ledgers.
A focused answer to AQA A-Level Accounting 3.1, covering the purpose and preparation of sales and purchases ledger control accounts, the bank reconciliation statement, and how each provides an independent check on the accuracy of the ledgers.
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What this dot point is asking
AQA wants you to prepare sales ledger and purchases ledger control accounts from the books of prime entry, prepare a bank reconciliation statement, and explain how each acts as an independent check on the ledgers. This is unit 3.1.9, and a full control account or a two-stage bank reconciliation is a standard Paper 1 calculation.
Control accounts
The entries come from the books of prime entry, not from individual transactions: the sales day book gives total credit sales, the cash book gives total receipts, the returns books give returns, and the discount columns give discounts. Because the control account is built from a different source than the personal ledger (the day books rather than the individual customer accounts), the two should agree, and a difference points to an error in one of them.
Bank reconciliation
A bank reconciliation is a two-stage process. First, the cash book is updated for items that appear on the bank statement but have not yet been recorded by the business: bank charges, interest, direct debits, standing orders and dishonoured cheques. These are genuine transactions the business simply had not entered. Second, the remaining differences are pure timing differences and appear only on the reconciliation statement: unpresented cheques (issued but not yet cleared by the bank) and outstanding lodgements (paid in but not yet credited).
Why these checks matter
Both procedures apply independent verification: errors and omissions in the ledgers, or timing differences with the bank, are found before the financial statements are prepared. A control account localises a sales- or purchases-ledger error without checking every personal account; a bank reconciliation confirms the cash balance is genuine and complete. Together they support the faithful representation of receivables, payables and cash.
Try this
Q1. State one purpose of a control account. [1 mark] To check the accuracy of the personal ledger by comparing the control balance with the total of the individual accounts.
Q2. Name two items that cause a difference between the cash book and the bank statement. [2 marks] For example unpresented cheques and outstanding lodgements.
Exam-style practice questions
Practice questions written in the style of AQA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
AQA 20198 marksPrepare the sales ledger control account from the following: opening receivables 260,000; receipts from customers 6,000; discounts allowed 1,000. Calculate the closing balance.Show worked answer →
A full worked control account; each item must sit on the correct side.
Debit side (increases receivables): opening balance 260,000, total $300,000.
Credit side (reduces receivables): receipts 6,000, discounts allowed 1,000, total $256,000.
Closing balance carried down: 256,000 = $44,000, a debit balance brought down as the closing trade receivables figure (8 marks across the items, totals and balance).
Markers reward each item on the correct side, the totalling, and the closing balance brought down on the debit side. A common error is to place discounts allowed or returns on the debit side.
AQA 20226 marksThe cash book shows a balance of 5,100. A cheque for 400 has not yet cleared, and bank charges of $200 appear on the statement but not in the cash book. Update the cash book and prepare a bank reconciliation statement.Show worked answer →
A full worked reconciliation in two stages.
Update the cash book for items the business has not recorded: deduct bank charges 3,800 - 3,600 (2 marks).
Reconciliation statement: start from the bank statement balance 900, add the uncleared lodgement 5,100 - 400 = $4,600... reconcile to the adjusted cash book. Note the figures here are illustrative; the marker rewards the correct treatment of each item type (4 marks): bank charges adjust the cash book; timing differences (unpresented cheques deducted, outstanding lodgements added) appear only on the statement.
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Sources & how we know this
- AQA A-level Accounting (7127) specification — AQA (2017)