OxfordAQA IGCSE Accounting: Incomplete records and single entry (9215)

This guide is aligned to the OxfordAQA International GCSE Accounting (9215) specification, version 1.2, for exams from May/June 2026 onwards. It covers the last content group of specification section 3.4 (topic 4, Preparation of financial statements): accounting for organisations with incomplete records. The specification asks for two things. You must calculate the profit of an organisation where there are insufficient records to prepare income statements, and you must explain the benefits and limitations of different record-keeping systems, including single and double entry. It adds that calculations could include statements of affairs. All amounts on this page are in dollars.

Use it with the revision notes and the practice questions. Profit corrections are also covered in the guide on correcting errors and the effect of errors on profit. Track your progress on the course hub, the checklist and the free diagnostics.

What you must be able to do

Specification point	What it means in practice
Calculate profit where records are insufficient to prepare income statements	Compare the owner’s capital at two dates and adjust for drawings and capital introduced
Calculations could include statements of affairs	List assets and liabilities at a date and find capital as the difference
Benefits and limitations of different systems, including single and double entry	Judge what each system tells the owner and what it cannot show

The specification does not list every technique used to rebuild missing figures. The totals accounts in the later section are common supporting methods. Treat the statement of affairs as the core skill.

Why records are incomplete

A small trader may record only some receipts and payments, keep no ledger accounts, or lose records. With single entry, each transaction is noted once, often in a cash book or notebook, and there is no matching second entry. Without full double entry there is no trial balance and no ready-made income statement.

The owner still needs to know whether the business made a profit. The answer comes from the accounting equation:

Capital = assets − liabilities

If capital rose during the year, the business has done well, once you allow for money the owner took out and money the owner put in.

The statement of affairs

A statement of affairs lists the assets and liabilities of a business at one date. The balancing figure is capital. It looks like a statement of financial position, but it is built from a count and valuation of items rather than from a trial balance. Group items under the headings you know: non-current assets, current assets, current liabilities and non-current liabilities.

Worked example 1: Maple Row Cycles

Maple Row Cycles is a sole trader business that sells and repairs bicycles. The owner kept no ledger. At the start of the year the owner listed: equipment 4,800; inventory 3,150; trade receivables 1,260; bank 2,040; cash 150; trade payables 1,900.

Statement of affairs at 1 January:

Item	Amount
Equipment	4,800
Inventory	3,150
Trade receivables	1,260
Bank	2,040
Cash	150
Total assets	11,400
Less trade payables	(1,900)
Capital	9,500

Opening capital is 9,500. Notice that it is a balancing figure. If you are told opening capital and some assets, you can work backwards to find one missing asset or liability in the same way.

Calculating profit from capital

Profit is the increase in capital that came from trading. Drawings reduce capital but are not an expense. Capital introduced raises capital but is not profit. So:

Step	Calculation
Closing capital	Closing assets − closing liabilities
Less opening capital	From the opening statement of affairs
Increase (or decrease) in capital	Closing capital − opening capital
Add drawings	Money and goods the owner took out
Less capital introduced	New money or assets the owner put in
Profit (or loss)	The result

Many candidates reverse the drawings and capital introduced lines. Think about what happened. If the owner took 9,600 out and capital still rose, the business must have earned more than the rise shows, so drawings are added back. If the owner put 2,500 in, part of the rise is not profit, so it is deducted.

Worked example 2: Maple Row Cycles continued

At 31 December the owner counted: equipment 4,320 (after the year’s use); inventory 3,600; trade receivables 1,580; bank 3,310; cash 210; trade payables 2,240. During the year drawings were 9,600 and the owner paid 2,500 of personal savings into the business bank account.

Closing statement of affairs:

Item	Amount
Equipment	4,320
Inventory	3,600
Trade receivables	1,580
Bank	3,310
Cash	210
Total assets	13,020
Less trade payables	(2,240)
Closing capital	10,780

Profit calculation:

Line	Amount
Closing capital	10,780
Less opening capital	(9,500)
Increase in capital	1,280
Add drawings	9,600
Less capital introduced	(2,500)
Profit for the year	8,380

Adjusting for information found later

The count may miss items. Suppose the owner then finds that a customer owing 180 has gone out of business and that 240 of rent for the last month is unpaid. The first is an irrecoverable debt, so trade receivables fall by 180. The second is an other payable (an expense owing), so liabilities rise by 240. Closing capital falls by 420 to 10,360. Profit falls by the same amount, to 7,960.

The rule is that any correction to an asset or liability at the closing date changes closing capital, and therefore profit, by the same amount. A correction to the opening position works in reverse. This links to the idea of recording depreciation, provision for doubtful debts, income due and income received in advance in the main financial statements: here you apply them by changing the value of the asset or liability.

What a profit figure from capital cannot show

The method gives one figure, net profit or loss. It does not give sales, cost of sales, gross profit or expenses. It cannot tell the owner which costs are too high. The figure is also only as good as the valuations. If inventory is counted badly or non-current assets are valued casually, profit moves by the same amount.

Rebuilding missing figures

When some records survive, you can often reconstruct sales, purchases and expenses so that an income statement can be prepared. These are supporting techniques, not separate specification headings.

Summary of receipts and payments

If the owner kept bank statements or a cash book summary, total each type of receipt and payment. A missing figure, such as drawings or an expense, is found as the balancing figure:

Opening balance + receipts − payments = closing balance

Totals accounts for trade receivables and trade payables

Build a total trade receivables account from the opening balance, the closing balance and the cash received. Credit sales is the missing figure. Do the same for trade payables to find credit purchases.

Trade receivables: opening balance + credit sales = cash received + discount allowed + irrecoverable debts + returns inwards + closing balance.

Trade payables: opening balance + credit purchases = cash paid + discount received + returns outwards + closing balance.

Worked example 3: Sable Hill Gifts

Sable Hill Gifts kept bank statements but no sales or purchases ledgers. Facts for the year:

Item	Amount
Trade receivables, opening	3,200
Trade receivables, closing	4,100
Cheques received from customers	38,500
Discount allowed	400
Irrecoverable debts written off	300
Cash sales	6,200
Trade payables, opening	2,700
Trade payables, closing	3,300
Paid to suppliers	24,600
Inventory, opening	2,900
Inventory, closing	3,400
Rent paid	4,800
Wages paid	9,100
Depreciation	600

Credit sales = 4,100 + 38,500 + 400 + 300 − 3,200 = 40,100. Sales = 40,100 + 6,200 = 46,300.

Credit purchases = 3,300 + 24,600 − 2,700 = 25,200.

Income statement extract	Amount
Sales	46,300
Opening inventory	2,900
Add purchases	25,200
Less closing inventory	(3,400)
Cost of sales	(24,700)
Gross profit	21,600
Less expenses: rent 4,800, wages 9,100, depreciation 600	(14,500)
Profit for the year	7,100

If rent or wages were also owing or prepaid, adjust them first. The total rent paid is not automatically the rent expense.

Single entry and double entry compared

In double entry every transaction has a debit and a credit, so the books balance and a trial balance can be extracted. Single entry records one side, usually cash and bank movements.

	Single entry	Double entry
Benefits	Cheap and quick to keep; no training needed; suits very small, simple businesses	Full ledger accounts; trial balance checks arithmetic; income statement and statement of financial position can be prepared directly
Limitations	No trial balance, so errors are hard to find; profit needs extra work; gaps in the records make figures hard to prove to a tax authority or lender	Takes longer, costs more and needs bookkeeping knowledge; errors such as omission or compensating errors can still hide

Weigh them against the business. A market stall with a few customers might manage on single entry. A trader with credit customers, a bank loan and several staff needs the control double entry gives. A lender or buyer is more likely to trust statements built from double entry records.

Note that double entry does not guarantee accuracy. A trial balance only proves that debits equal credits.

Common errors

• Starting the profit calculation from closing capital but forgetting to subtract opening capital.
• Treating drawings as an expense, or treating capital introduced as income.
• Using the owner’s drawings from the cash book while ignoring goods taken for own use.
• Putting trade payables as an asset in a statement of affairs.
• Leaving out accrued expenses or irrecoverable debts found after the count.
• Finding credit sales without using the opening receivables balance.
• Giving only one-word comments on systems, such as “cheaper”, without saying why it matters to this business.

Next steps

Test yourself on the practice questions, then use the revision notes for quick recall. Take a free diagnostic to find weak areas.

Frequently asked questions

What is a statement of affairs? A statement of affairs lists the assets and liabilities of a business at one date, and the balancing figure is its capital. It is used when the business has not kept full double entry records.

Why are drawings added back when calculating profit from capital? Drawings reduced capital during the year but are not an expense, so they are added back to the increase in capital. Capital introduced raised capital without being a profit, so it is deducted.

What can profit from capital not show? The method gives one figure, net profit or loss. It does not give sales, cost of sales, gross profit or individual expenses, which an income statement would show.

How do you find credit sales from a totals account? Use opening trade receivables + credit sales = cash received + discount allowed + irrecoverable debts + returns + closing trade receivables, and solve for credit sales. Add cash sales to find total sales.

Does double entry guarantee accurate records? No. A trial balance only proves that debits equal credits, so some errors can remain. Double entry does, however, give more control and information than single entry for a business with many credit customers.

Official syllabus

OxfordAQA International GCSE Accounting (9215), specification version 1.2, for International GCSE exams May/June 2026 onwards (OxfordAQA). Section 3.4, Preparation of financial statements: accounting for organisations with incomplete records.