Accrual & Deferral Calculator

Accruals and Deferrals in Australian Accounting

Accrual accounting matches revenue and expenses to the period in which they are earned or incurred - regardless of when cash is received or paid. This is the basis required under Australian Accounting Standards (AASB) for general purpose financial statements, and is the default for businesses with turnover above the ATO's cash accounting threshold (currently AU$10 million for most businesses). The ATO also uses accruals concepts in assessing when income is derived and when expenses are deductible, though the tax and accounting treatments do not always align perfectly.

There are four main adjustment types. A prepaid expense is cash paid in advance for a future benefit - for example, an annual insurance premium paid in July covers 12 months, so 11/12 is a prepaid asset at month-end in July, unwinding each month as the coverage is consumed. Unearned revenue is the mirror: cash collected before the service is delivered - it sits as a liability (deferred revenue) until the obligation is fulfilled. Accrued expenses are costs incurred but not yet billed or paid - wages earned by staff but not yet processed, utilities used but not yet invoiced, or interest accrued on a loan. Accrued revenue is income earned but not yet invoiced - common in project-based businesses billing in arrears.

Getting these entries right at each month-end close is essential for meaningful management accounts. Understating accrued expenses flatters profit in the current period and creates a hit in the following period when the invoice arrives. Overstating prepaid assets inflates the balance sheet. Both distort the financial picture for management, lenders, and the ATO if adjustments flow through to BAS or income tax returns.

Worked example: month-end adjustments for a wholesale distributor

A Melbourne-based industrial parts distributor closes its books at 31 March. The bookkeeper identifies three adjustments needed:

Without the insurance prepayment entry, March expenses would be overstated by AU$16,500 (the full premium less one month). Without the electricity accrual, March expenses would be understated by AU$4,200, and the March P&L would show a profit AU$4,200 higher than reality. Without the unearned revenue deferral, March revenue would be overstated by AU$8,000. Combined, these three adjustments shift the March profit figure by AU$28,700. For a business with AU$50,000 monthly net profit, that is a 57% distortion.

Common month-end mistakes

Not reversing prior-period accruals. If you accrued AU$4,200 for electricity in March and the actual invoice arrives in April for AU$4,350, the accrual must be reversed in April before posting the invoice. Otherwise the expense is double-counted: AU$4,200 in March and AU$4,350 in April. In Xero, use a manual journal with the "Show journal on cash basis reports" box unchecked so the accrual does not distort your GST reporting. In MYOB, post it as a general journal and reverse it on the first day of the next period.

Prepaying annual subscriptions without spreading. An AU$9,600 annual software licence paid in July should be recognised at AU$800 per month, not as a single AU$9,600 hit. For businesses producing monthly management accounts, failing to spread annual payments creates artificial profit troughs in the payment month and overstated profits in the other eleven months.

How to use this calculator

1. Select the adjustment type: prepaid expense, unearned revenue, accrued expense, or accrued revenue.
2. Enter the total amount, the service start date, and the service end date.
3. Review how much has been recognised in the current period and what remains deferred or accrued.
4. Use the generated journal entry as a reference for your bookkeeping in Xero, MYOB, or your accounting system.

Frequently asked questions

What is the difference between an accrual and a deferral?

An accrual recognises a transaction before cash has changed hands - you record an expense or revenue because it has been incurred or earned, even though no invoice has been received or payment made. A deferral postpones recognition of a transaction that has already involved a cash movement - you have paid or received cash, but the expense or revenue has not yet been incurred or earned. Accrued expenses and accrued revenue are accruals; prepaid expenses and unearned revenue are deferrals.

Are accruals required for tax purposes in Australia?

For income tax, the ATO generally requires income to be recognised when it is derived (earned) and expenses to be deductible when incurred - both of which align with accrual concepts. However, there are exceptions: the cash basis is available for some types of income (e.g. certain professional income under the personal services income rules), and prepaid expenses over AU$1,000 covering more than 12 months future service must generally be apportioned. Check with your tax adviser on specific items.

How does GST interact with accruals?

Most GST-registered businesses account for GST on an accruals basis - meaning GST on sales is payable when the invoice is issued and GST on purchases is claimable when the tax invoice is received, regardless of when payment is made. Smaller businesses may elect to account for GST on a cash basis (payable when received, claimable when paid), which reduces the mismatch between GST cash flows and trading activity. Your BAS lodgement basis should match how you manage your books to avoid discrepancies. Use the journal entry generator to format your accrual and deferral entries correctly.