What Is the Accruals Basis? Traditional Accounting Explained
Match income to the work that earned it, and costs to the period they belong to. The traditional method that gives the truest picture of profit.
- What Is the Accruals Basis? Traditional Accounting Explained
- The accruals basis records income when it is earned and expenses when they are incurred - when the work is done or the cost is committed - regardless of when the money actually changes hands. It is the traditional accounting method and is mandatory for limited companies.
Imagine you spend three months building something for a client, finish it in March, and get paid in May. Did you earn that money in March or in May? The accruals basis gives the answer that matches reality: you earned it when you did the work. This "matching" principle is the backbone of traditional accounting, and although the cash basis has become the default for sole traders, the accruals basis remains the gold standard for any business that wants its profit figure to mean something.
- The accruals basis recognises income when earned and expenses when incurred, not when cash moves.
- It is also called traditional accounting and follows generally accepted accounting principles.
- All limited companies must use it; for sole traders it is now an opt-in choice since cash basis became the default in 2024/25.
- It requires tracking debtors (money owed to you) and creditors (money you owe).
- It gives a truer profit picture for businesses with stock, work in progress or financing.
The Matching Principle
The core idea behind the accruals basis is matching: revenue is recorded in the period it is earned, and the costs incurred to generate that revenue are recorded in the same period. This stops profit from lurching around simply because a customer paid early or you settled a bill late. The number you end up with reflects the trade itself, not the rhythm of your bank account.
- Matching principle
- The accounting rule that expenses should be recorded in the same period as the income they helped generate, so profit reflects economic activity rather than cash timing.
To make this work, you track two things the cash basis ignores: debtors (invoices issued but not yet paid) and creditors (bills received but not yet settled). At each period end you also account for prepayments, accruals and the value of stock or work in progress.
Accruals vs Cash Basis
The cleanest way to understand the accruals basis is against its simpler sibling, the cash basis:
| Aspect | Accruals basis | Cash basis |
|---|---|---|
| Income recorded | When earned | When received |
| Expenses recorded | When incurred | When paid |
| Tracks debtors/creditors | Yes | No |
| Stock and work in progress | Accounted for | Largely ignored |
| Best for | Stock, manufacturing, financing | Simple service businesses |
Since the 2024/25 tax year, the cash basis is the default for sole traders, so the accruals basis is now something you actively choose. Limited companies have no choice - they must use the accruals basis by law.
A Worked Example: Year-End Stock and Debtors (2025/26)
Owen runs a small furniture-making business. In 2025/26 he:
- completes and invoices £8,000 of work in March 2026, paid by the client in April 2026
- holds £3,500 of timber stock unsold at 5 April 2026
- has received a £600 supplier bill in March 2026 that he pays in April 2026
| Item | Accruals treatment (2025/26) |
|---|---|
| £8,000 invoice (earned March) | Counted as 2025/26 income |
| £3,500 closing stock | Carried forward, not expensed yet |
| £600 supplier bill (incurred March) | Counted as 2025/26 expense |
On the accruals basis, the £8,000 is income now because the work is done; the unsold timber is held on the balance sheet rather than expensed; and the supplier bill is a cost now because it was incurred. A cash-basis trader would defer the £8,000 income and the £600 cost into 2026/27 and would not formally value stock at all. For a manufacturer like Owen, the accruals figure is the honest one - see how it flows through a profit and loss statement, and estimate the tax with the sole trader tax calculator.
When the Accruals Basis Is the Right Choice
Choose the accruals basis when timing of cash would otherwise distort your profit. That typically means you hold significant stock or work in progress, you manufacture or buy and resell goods, you carry meaningful business borrowing (the accruals basis has historically been more generous on interest deductions), or you need formal accounts for a lender, investor or grant. It also makes year-on-year comparison cleaner because results are not skewed by when invoices happened to be paid. The trade-off is more record-keeping: you must value stock and track who owes what at each period end.
The accruals basis answers 'how is the business actually doing?' rather than 'how much cash moved this year?'. For anything with stock or financing, that distinction is the whole point.
Accruals Under Making Tax Digital
From April 2026, sole traders with qualifying income over £50,000 join Making Tax Digital for Income Tax. The accruals basis is fully compatible: you keep digital records and submit quarterly summaries, but the figures reflect earned income and incurred costs rather than cash movements. You will need accounting software that handles debtors, creditors and stock so your quarterly updates carry the right accrual adjustments.
Related terms
- Cash basis accounting - the simpler default that follows your bank account.
- Sole trader tax calculator - estimate your bill on either basis.
- Profit and loss - the statement where accrued income and costs appear.
People also ask
Frequently asked questions
- What is the accruals basis of accounting?
- The accruals basis recognises income when it is earned and expenses when they are incurred, not when cash moves. If you complete work in March, the income belongs to March even if the client pays in May. It is also called traditional accounting, it follows generally accepted accounting principles, and it is the method used to prepare formal financial statements.
- What is the difference between accruals and cash basis?
- Cash basis records income and expenses when money actually changes hands; the accruals basis records them when the underlying sale or purchase happens. Cash basis is simpler and follows your bank statement; the accruals basis matches income to the work that earned it and costs to the period they relate to, giving a more accurate measure of profit but requiring you to track debtors and creditors.
- Who has to use the accruals basis?
- All limited companies must use the accruals basis to comply with company law and calculate Corporation Tax. For sole traders and partnerships it is now optional: since the 2024/25 tax year the cash basis is the default, so you must positively elect for the accruals basis if you want it - typically because you carry stock, manufacture goods or have significant business borrowing.
Tax jargon, decoded.
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