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Financial Accounting · Incomplete records

Reconstructing Ledger Accounts and Control Accounts in Incomplete Records

Updated 11 October 2026 · Fact-checked

Reconstructing accounts means rebuilding a cash book, receivables account or payables account from the figures you are given. You enter the known opening balance, closing balance and transactions, then the missing figure is the balancing figure. Credit sales, purchases and drawings are usually found this way.

Understand Reconstructing Ledger Accounts and Control Accounts

Some small businesses do not keep full double-entry records. You may be given only bank statements, a few balances and some totals. The exam then asks you to find a missing figure such as credit sales, purchases or drawings.

The idea is simple. Every ledger account follows one rule: opening balance + increases - decreases = closing balance. If you know every item but one, the missing item is the balancing figure. You draw a T-account, fill in what you know, and the gap is your answer.

Three accounts do most of the work. The cash (or bank) account shows money in and out, and usually reveals drawings or cash sales. The receivables account (sales ledger control account) shows credit sales as the missing debit. The payables account (purchases ledger control account) shows credit purchases as the missing credit.

Once you have credit purchases, you can go on to find cost of sales or total sales. Each rebuilt account feeds the next. Work in a sensible order and write every figure in its account.

Key formulas to remember

Basic ledger rule
Opening balance + additions - reductions = Closing balance
Rearrange to find whichever single item is missing.
Receivables control account
Opening receivables + credit sales - cash received - discounts allowed - irrecoverable debts - returns inwards = Closing receivables
Credit sales is usually the balancing figure on the debit side.
Payables control account
Opening payables + credit purchases - cash paid - discounts received - returns outwards = Closing payables
Credit purchases is usually the balancing figure on the credit side.
Total sales
Total sales = Credit sales + Cash sales
Add cash sales only if they are separate from the receivables account.
Cash drawings
Opening cash + receipts - payments - Closing cash = Drawings
Use when drawings are the only unknown cash payment.
Purchases from cost of sales
Purchases = Cost of sales + Closing inventory - Opening inventory
Use when the question gives cost of sales or a margin or mark-up.

How to solve Reconstructing Ledger Accounts and Control Accounts questions

Use this method for any reconstruction question. Stay in one account at a time.

  1. 1Read the question and underline the missing figure you are asked for.
  2. 2Draw a T-account for the relevant ledger: cash, receivables or payables.
  3. 3Enter the opening balance on the correct side. Receivables and cash are debits. Payables are credits.
  4. 4Enter every known item on its correct side, including discounts, returns and irrecoverable debts.
  5. 5Enter the closing balance on the side that makes sense for that account.
  6. 6Calculate the balancing figure as the difference between the two sides.
  7. 7Label the balancing figure and check that it is reasonable, for example that credit sales are not negative.
  8. 8Carry the figure forward to the next account or to the statement of profit or loss if needed.

Quickest way: One-line arithmetic

When to use it: Use it in objective test questions where only one figure is missing and you must save time.

  1. Skip the full T-account and write the rule as a sum.
  2. For receivables: credit sales = closing + cash received + discounts + irrecoverable debts + returns - opening.
  3. For payables: purchases = closing + cash paid + discounts received + returns - opening.
  4. Check the direction: if the account balance rose, the missing figure must exceed the payments.
  5. Compare your answer with the options and eliminate any that are clearly too small or too large.

Common mistakes in Reconstructing Ledger Accounts and Control Accounts

  • Putting the opening balance on the wrong side of the account.

    Students forget that receivables are debit balances and payables are credit balances.

    Fix: Remember: receivables on the left, payables on the right. Sketch the T before writing any numbers.

  • Using cash paid to suppliers as purchases.

    Both seem to describe buying goods, but cash paid ignores the change in payables.

    Fix: Adjust for opening and closing payables. Purchases = payments + closing payables - opening payables, ignoring other items.

  • Leaving out discounts, returns or irrecoverable debts.

    These items appear in the question as small extra lines and are easy to miss.

    Fix: Tick each figure in the question as you place it in the account.

  • Treating drawings as an expense.

    Money leaves the business, so it feels like a cost.

    Fix: Drawings reduce the owner's capital. They never go into the statement of profit or loss.

  • Mixing cash sales with credit sales in the receivables account.

    Students enter total sales as the debit.

    Fix: Only credit sales go through receivables. Add cash sales separately to get total sales.

  • Closing a cash account without checking for bank overdraft or personal payments.

    Students ignore the sign of the balance.

    Fix: A bank overdraft is a credit balance. Place it on the correct side before finding the balancing figure.

Worked examples

Example 1

A trader has receivables of $18,400 at 1 January and $21,600 at 31 December. During the year, customers paid $152,000, the trader allowed discounts of $2,400 and wrote off irrecoverable debts of $1,600. Calculate credit sales for the year.

Show the solution
  1. Debit side: opening balance $18,400 plus credit sales (unknown).
  2. Credit side: cash received $152,000, discounts $2,400, irrecoverable debts $1,600 and closing balance $21,600.
  3. Total of the credit side = 152,000 + 2,400 + 1,600 + 21,600 = $177,600.
  4. Credit sales = 177,600 - 18,400 = $159,200.

Answer: Credit sales were $159,200.

Example 2

A trader had payables of $9,500 at 1 April and $12,300 at 31 March. Payments to suppliers were $87,200 and the trader received discounts of $1,500. Goods returned to suppliers were $2,000. Cash drawings are unknown. Cash at 1 April was $3,000 and at 31 March $4,100. Cash receipts from customers totalled $96,000. Other cash payments for expenses were $6,400. Calculate (a) credit purchases and (b) cash drawings. Assume the payments to suppliers were made from cash.

Show the solution
  1. (a) Payables account credit side: opening $9,500 plus purchases (unknown).
  2. Debit side: cash paid $87,200, discounts received $1,500, returns $2,000 and closing balance $12,300. Total = 87,200 + 1,500 + 2,000 + 12,300 = $103,000.
  3. Purchases = 103,000 - 9,500 = $93,500.
  4. (b) Cash account debit side: opening $3,000 plus receipts $96,000 = $99,000.
  5. Credit side: suppliers $87,200, expenses $6,400, drawings (unknown) and closing $4,100.
  6. Known credits = 87,200 + 6,400 + 4,100 = $97,700.
  7. Drawings = 99,000 - 97,700 = $1,300.

Answer: Credit purchases were $93,500 and cash drawings were $1,300.

Exam tips

  • In multiple-choice questions, wrong options are often built from the common errors: ignoring discounts, or reversing the sign of the opening balance. Calculate before looking at the options.
  • Number entry questions need an exact figure. Check whether the question wants a whole number and write only the number.
  • For multiple response questions, work out each stated figure separately before selecting the options.
  • Write the full account on scrap paper even under time pressure. It is faster than correcting an arithmetic slip.
  • Watch the wording: 'cash received from customers' is not the same as 'sales'. Look for opening and closing balances.

Practice questions from Incomplete records

Reconstructing Ledger Accounts and 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.

Reconstructing Ledger Accounts and Control Accounts: frequently asked questions

How do I find credit sales from incomplete records?

Draw the receivables control account. Put the opening balance and credit sales on the debit side. Put cash received, discounts, irrecoverable debts, returns and the closing balance on the credit side. Credit sales is the balancing figure.

How do I find purchases when only payments to suppliers are given?

Use the payables control account. Purchases equal payments plus discounts received and returns, plus closing payables, minus opening payables. The change in payables is what separates purchases from cash paid.

How do I calculate drawings from a cash book?

Write the cash account with opening cash and all receipts on the debit side. List all payments and the closing cash on the credit side. If drawings are the only unknown payment, the difference is drawings.

Are cash sales included in the receivables account?

No. Only sales on credit pass through receivables. Calculate credit sales first, then add cash sales to find total sales.