Financial Accounting · Receivables and payables

Sales and Purchases Ledger Control Accounts Explained

Updated 11 October 2026 · Fact-checked

A control account is a total account that summarises all the individual balances in the receivables (sales) ledger or payables (purchases) ledger. You build it from day book totals and cash book totals. Then you compare its balance with the sum of the individual ledger balances and explain any difference.

Understand Sales and Purchases Ledger Control Accounts

A business with many credit customers keeps an individual account for each one. This is the receivables ledger (sales ledger). Suppliers have accounts in the payables ledger (purchases ledger). These are subsidiary ledgers. They give detail: who owes you, and who you owe.

A control account is different. It is one account in the general (nominal) ledger. It shows the total of all receivables or all payables. It is built from totals, not from single customers. Postings come from the day books and the cash book.

In a full double-entry system, the control account is part of the double entry. The subsidiary ledger accounts are then memorandum records. In the exam you are usually told which records are used, so work from the figures given.

Why keep one? It is a check on accuracy. The control account balance should equal the sum of the individual balances. If it does not, there is an error in one or the other. It also helps detect fraud, and a total receivables or payables figure is available quickly for the financial statements.

A reconciliation finds and explains differences. You correct the control account for errors made in the totals. You correct the list of ledger balances for errors made in individual accounts. After corrections, both should agree.

Key formulas to remember

Receivables control account layout: Debit: opening balance b/f + credit sales (sales day book total, including sales tax) + dishonoured cheques + interest charged to customers on overdue balances (only if the question says it is charged). Credit: cash and cheques received + discounts allowed + sales returns (including sales tax) + irrecoverable debts written off + contra entries + balance c/d (closing receivables, the balancing figure); The balance is normally a debit. The opening balance b/f is on the debit side. The closing balance c/d is on the credit side as the balancing figure, then brought down as a debit balance b/d.
Payables control account layout: Credit: opening balance + credit purchases (purchases day book total, including sales tax). Debit: payments made + discounts received + purchase returns (including sales tax) + contra entries. Balance c/d = closing payables; The balance is normally a credit. It is the mirror image of the receivables account.
Closing receivables: Closing receivables = opening receivables + credit sales + dishonoured cheques + interest charged − cash received − discounts allowed − returns − irrecoverable debts − contras; Use this as a proof or to find a missing figure.
Contra entry: Dr Payables control; Cr Receivables control; Used when a customer is also a supplier and the balances are set off. It reduces both ledgers by the same amount.
Reconciliation rule: Corrected control account balance = corrected total of list of ledger balances; Errors in totals fix the control account. Errors in single accounts fix the list of balances.

How to solve Sales and Purchases Ledger Control Accounts questions

Use this method for any control account question, whether you must prepare the account, find a missing figure or reconcile.

1Read the question and decide: receivables or payables. Draw a T account and put the opening balance on the correct side (receivables debit, payables credit).
2List every item given. Sort each into debit or credit using the layout. Increases in the balance go on the same side as the opening balance.
3Check what each total includes. Sales and purchases totals normally include sales tax. Cash received is net of discounts.
4Ignore items that do not belong. Cash sales and cash purchases never go in a credit control account. Provisions or allowances for receivables are not posted here.
5Balance the account to find the missing figure, such as closing balance, credit sales or cash received.
6For a reconciliation, decide for each error whether it affects the control account or the ledger list. Adjust each starting balance in turn.
7Compare the two corrected totals. They must agree. If not, recheck the sign of each adjustment.
8Label your answer clearly with the figure and whether it is a debit or credit.

Quickest way: Side-by-side adjustments

When to use it: Use this for reconciliation questions with a list of errors and two starting balances.

Write two columns: Control account and List of balances.
Put the starting figure at the top of each.
For each error, ask: was the total wrong or was one customer account wrong?
Total wrong: adjust the control column. One account wrong: adjust the list column.
To find the sign, think about what the correct entry should have been compared with what was done.
Total each column. They must match, and the match proves the work.

Common mistakes in Sales and Purchases Ledger Control Accounts

Putting the opening balance on the wrong side of the account.
Students confuse receivables with payables, or forget the account is a mirror image.
Fix: Receivables are assets, so the balance is a debit. Payables are liabilities, so the balance is a credit. Always start there.
Including cash sales in the receivables control account.
The word sales makes every sale look relevant.
Fix: Only credit sales go through the receivables ledger. Cash sales are paid at once, so they never create a receivable.
Posting sales tax separately or leaving it out.
Students remember the sales tax account and think the control account needs net figures.
Fix: Customers owe the gross amount. Use totals including sales tax for credit sales and for returns.
Entering a contra on only one control account.
The entry feels like a single adjustment.
Fix: A contra reduces both receivables and payables by the same amount. Credit receivables control and debit payables control.
Adjusting the wrong side of a reconciliation for an error in the ledger list.
Students correct every error in the control account.
Fix: Ask where the mistake was made. A single account error, such as a transposed balance, changes the list, not the control account.
Treating an allowance for receivables as part of the control account.
Both relate to receivables.
Fix: The allowance is a separate estimate in the general ledger. Irrecoverable debts written off are in the control account. The allowance is not.

Worked examples

Example 1

At 1 April, receivables were $42,500. During April: credit sales $96,000 (including sales tax), cash received from customers $81,200, discounts allowed $1,800, sales returns $3,500 (including sales tax), irrecoverable debts written off $2,400, and a cheque for $1,100 from a customer was dishonoured. Calculate closing receivables at 30 April.

Show the solution

Debit side: opening balance b/f $42,500 + credit sales $96,000 + dishonoured cheque $1,100 = $139,600.
Credit side before the balance: cash $81,200 + discounts allowed $1,800 + returns $3,500 + irrecoverable debts $2,400 = $88,900.
Balance c/d on the credit side = $139,600 − $88,900 = $50,700. It is brought down as a debit balance b/d.

Answer: Closing receivables are $50,700 (debit).

Example 2

The payables ledger list of balances totals $38,640. The payables control account shows a credit balance of $38,100. Two errors are found: (1) the purchases day book total was understated by $900; (2) a supplier balance of $360 was left out of the list of balances. What are the corrected figures? Is the difference resolved?

Show the solution

Error 1 is in a total posted to the control account. Purchases increase payables, so credit the control account by $900.
Corrected control balance = $38,100 + $900 = $39,000.
Error 2 is in the list. The supplier balance omitted means the list is too low, so add $360.
Corrected list total = $38,640 + $360 = $39,000.
Compare: both totals are $39,000, so the difference is resolved.

Answer: Corrected control account $39,000; corrected list $39,000. The two agree, so the difference is fully explained.

Exam tips

Read each item and say aloud whether it raises or lowers the balance. Then place it on the correct side.
Watch for items that do not belong: cash sales, allowances for receivables and sales tax payable. Examiners include them as distractors.
In multiple response questions, select the stated number of errors that affect the control account only. Test each with: was a total or a single account wrong?
In number entry questions, check the sign and units. Enter only the figure asked for, without extra symbols unless the question says so.
Do the reconciliation arithmetic twice. One sign slip gives a wrong answer that looks plausible.

Practice questions from Receivables and payables

Sales and Purchases Ledger Control Accounts in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Sales and Purchases Ledger Control Accounts: frequently asked questions

What is the difference between a control account and a subsidiary ledger?

A subsidiary ledger holds the individual accounts for each customer or supplier. A control account is one general ledger account showing the total of all those balances. The control account is built from totals in the books of prime entry.

Why should the control account agree with the ledger balances?

Both record the same transactions, one in total and one in detail. If they disagree, an error exists in one of them. The reconciliation finds it and corrects it.

Which side does a sales ledger control account balance sit on?

Normally the debit side, because customers owe the business money. A credit balance can arise, for example from overpayment, but it is unusual.

Does a sales ledger control account include cash sales?

No. It records only credit sales. Cash sales are received at once, so they do not create receivables.