Year end is where good bookkeeping pays off and bad bookkeeping sends the accountancy bill up. The companies that close their year cleanly do a short list of things in the final weeks before the date, and a few more in the weeks after.
Here are the fifteen tasks that matter, in roughly the order to do them.
Before the Year-End Date
1. Reconcile Every Bank and Card Account
The books must match the bank to the penny, including the credit card, the PayPal account and the savings account everyone forgot. Unreconciled differences at year end become your accountant's most expensive hourly work.
2. Chase Debtors While You Still Can
Invoices unpaid at year end sit in your accounts as income you've been taxed on but never received. A chasing round in the last month improves both cash and the balance sheet, and genuinely bad debts written off before the date reduce taxable profit.
3. Bring Purchase Invoices In
Every supplier invoice dated before year end belongs in this year's accounts. The subscription on a personal card, the contractor who bills late, the last delivery not yet invoiced: get them recorded or accrued, because each one missed is profit overstated and tax overpaid.
4. Time Big Purchases Deliberately
Equipment bought the week before year end gets tax relief a full year earlier than the same purchase a week later, thanks to full expensing and the Annual Investment Allowance. If the spend is coming anyway, the calendar is free money.
5. Make Pension Contributions Before the Date
Employer pension contributions only reduce this year's corporation tax if they're actually paid before year end, not merely decided. A contribution that pulls profit out of the 26.5% marginal band works twice as hard.
6. Count and Value Your Stock
Businesses holding stock need a count at or near the year-end date, valued at the lower of cost and net realisable value. Obsolete stock written down honestly reduces profit; a guessed figure invites both tax errors and awkward questions.
7. Settle the Director's Loan Account
An overdrawn director's loan not repaid within nine months of year end triggers a 33.75% Section 455 charge. Check the position before the date while there's still room to clear it with a dividend or salary, and remember loans over £10,000 also create a benefit-in-kind.
8. Declare and Document Final Dividends
Dividends need distributable profits and paperwork: board minutes and vouchers, dated correctly. Backdated dividends invented at accounts-preparation time are the kind of thing that turns a routine enquiry into a serious one.
After the Year-End Date
9. Issue Any Balancing Payroll Items
Close the payroll year properly: final RTI submissions, P60s for every employee by 31 May, and P11Ds for benefits by 6 July. Payroll loose ends are among the most common errors in our list of top 15 accounting mistakes UK small businesses must avoid.
10. Review Aged Creditors and Accruals
Old balances that no longer make sense, duplicate supplier entries, deposits never refunded: year end is the moment to clean them out so the balance sheet reflects reality rather than history.
11. Check VAT Reconciles to the Accounts
The VAT returns filed during the year should agree with the VAT control account in the books. Differences mean an error somewhere, and finding it now is cheaper than HMRC finding it later.
12. Confirm Fixed Assets Still Exist
The asset register accumulates ghosts: the van that was sold, the laptop that died. Remove disposals properly, record any proceeds, and make sure depreciation policies are being applied consistently.
13. Diarise the Statutory Deadlines
Accounts to Companies House nine months after year end. Corporation tax paid nine months and one day after. The CT600 return filed within twelve months. The confirmation statement on its own annual cycle. Four dates, one calendar, zero excuses.
14. Hold the Pre-Accounts Conversation With Your Accountant
The most valuable meeting of the year happens before the accounts are finalised, when elections, accruals, remuneration decisions and loss claims can still be shaped. Send the records early; daily habits that make that painless are covered in our bookkeeping tips for sole traders and limited companies.
15. Review the Numbers as a Business Owner, Not Just a Taxpayer
Year-end accounts are the one time all the numbers stand still. Margin by month, customer concentration, overheads against last year: twenty minutes of honest reading tells you more about next year than any forecast template.
Making Year End Boring (in a Good Way)
A clean year end isn't a March sprint; it's twelve months of tidy books plus this checklist. End-of-year accounting, corporation tax returns and the pre-year-end planning conversation are core accounting services we provide at ASPIRE UK on fixed fees. If your year end is inside the next three months and items 1 through 8 aren't done, request a callback this week — the before-the-date items are the ones that can't be fixed later.
