Definition
Year-end close is the accounting process of finalising the books for a fiscal year. It includes posting all period-end adjustments (accruals, prepayments, depreciation, foreign-exchange revaluations), reconciling every control account on the balance sheet, reviewing the trial balance for anomalies, and locking the period so that financial statements and tax returns can be prepared from a stable set of numbers.
What year-end close means in practice
For a bookkeeper, year-end close is the most concentrated week of the year. The work is structurally the same as a month-end close but the stakes are higher: the numbers flow into statutory accounts, the tax return, and (for incorporated entities) the public filing. Mistakes that would be tolerable in an interim month become formal misstatements at year-end.
The standard checklist runs in roughly this order. Reconcile every bank and credit-card account to the underlying statement. Confirm AR and AP control accounts match the sum of open invoices and bills. Post the period-end accruals for utilities, payroll, and other recurring items not yet invoiced. Post prepayment releases for the year. Post depreciation on the fixed asset register. Revalue foreign-currency balances at the year-end rate. Clear suspense and rounding accounts. Review the trial balance for unexpected balances. Lock the period.
A practical example: a UK consultancy with a 31 March year-end. On 1 April the bookkeeper starts the close. They reconcile two bank accounts and one credit card (30 minutes), confirm AR and AP control accounts agree to the open-item lists (30 minutes), post accruals for March payroll, March electricity, and March accountancy fees (1 hour), release one twelfth of the annual insurance prepayment (5 minutes), post annual depreciation per the fixed asset register (30 minutes), review the trial balance and clear two small rounding differences (15 minutes), and lock the period in Xero. Total time: about three hours, because the monthly cadence was clean.
How year-end close works by country
United Kingdom
For individuals and unincorporated businesses, the tax year ends 5 April. For incorporated entities, the corporation tax year-end follows the company’s accounting reference date, set at incorporation and typically aligned with a calendar quarter end. Statutory accounts must be filed at Companies House within nine months of year-end for private companies (six months for public). The corporation tax return is due 12 months after year-end; tax payable is due 9 months and one day after year-end (or quarterly instalments for large companies).
Australia
The financial year runs 1 July to 30 June for tax purposes. Calendar-year alternates are permitted only with ATO approval, generally granted to foreign-owned subsidiaries aligning with a US or European parent. Company tax returns are due by 15 May of the following year for most lodgers, with earlier dates for businesses that have a poor lodgement history. Tax payable is due on the lodgement date, with PAYG instalments having been remitted across the year via the BAS.
Canada
Corporate fiscal year-end is set by the corporation at incorporation. Most SMBs choose 31 December but any month-end is permitted. The T2 corporate tax return is due 6 months after year-end. The balance owing is due 2 months after year-end for most corporations, or 3 months for Canadian-controlled private corporations meeting specific tests. Late filing produces a graduated penalty starting at 5% of unpaid tax plus 1% per month.
New Zealand
The standard balance date is 31 March, which is also the tax year-end. Companies can adopt non-standard balance dates with IRD approval; common alternates are 30 June, 30 September, and 31 December. The annual income tax return is due by 7 July of the year following balance date, with extensions to 31 March for clients of registered tax agents.
Singapore
Fiscal year-end is the company’s chosen financial year-end, set at incorporation, typically 31 December for SMBs. Estimated Chargeable Income (ECI) must be filed within 3 months of year-end. Form C or C-S (the full corporate tax return) is due by 30 November of the year following the year of assessment. Audited financial statements are required only for companies above certain size thresholds (revenue above SGD 10 million, assets above SGD 10 million, or 50+ employees).
Related terms
Year-end close pulls together most of the period-end adjustment categories:
- Accruals entries for expenses incurred but not yet invoiced.
- Prepayment releases for cash paid in advance.
- Depreciation on the fixed asset register.
- Reconciliation of every control account on the balance sheet.
- The trial balance is the final review document before locking.
- Each adjustment is posted as a manual journal entry.
See also
For the per-jurisdiction tax returns that follow year-end close, see the country guides for UK VAT, AU GST and BAS, CA GST and HST, NZ GST, and SG GST.
FAQ
See the answered questions above for the year-end checklist, typical close duration, and rules on reopening a closed period.