Year End Accounts Checklist at a Glance
Get bookkeeping fully up to date
Reconcile every account
Review income, costs and accruals
Check stock and fixed assets
Confirm your filing deadlines
Compile your final reports
File, then reset for next year
Step 1: Get Your Bookkeeping Fully Up to Date
Before you can review anything, every sales invoice, purchase invoice, bank transaction and payroll entry needs to be posted for the full accounting period. If records are incomplete, everything that follows becomes guesswork.
This is also the point to tidy up anything sitting in suspense accounts or left unreconciled during the year. If you use cloud software, check that your bank feeds have posted correctly and that no manual journals are outstanding.
Quick win: if this step alone takes you more than a day, that's usually a sign your record-keeping needs a better system running in the background — not just a bigger push once a year.
Step 2: Reconcile Every Account, Not Just the Main One
It's easy to reconcile your primary current account and assume the job is done. A thorough year end review covers every account that touched company money — savings, credit cards, merchant accounts, and any loans or lines of credit.
Match balances against statements and investigate anything that doesn't add up before it gets buried under a full year of transactions.
Step 3: Review Income, Costs and Accruals
This is where bookkeeping turns into a genuine financial review. Work through:
Sales and income — confirm everything has been invoiced in the correct period, and that deferred or accrued income is treated properly
Costs and accruals — check for year-end costs not yet invoiced, such as accountancy fees, utilities, or supplier bills still outstanding
Debtors — review aged receivables and flag any balances that may need writing down
Getting this step right is what separates figures that are technically complete from figures that actually reflect how the business performed.
Step 4: Check Stock and Fixed Assets
If you hold stock, confirm physical counts match your records and resolve any discrepancies. If you own equipment, vehicles, or other fixed assets, this is when you update the asset schedule, record any disposals, and make sure depreciation has been calculated correctly — skipping it distorts both your balance sheet and your tax position.
Step 5: Know Your Year End Accounts Deadlines
UK limited companies have several filing obligations across Companies House and HMRC:
| Filing | Filed with | Deadline |
| Annual accounts | Companies House | 9 months after your accounting year end |
| Company Tax Return (CT600) | HMRC | 12 months after your accounting period ends |
| Confirmation statement | Companies House | At least once every 12 months |
Worth knowing for 2026: HMRC's joint online service for filing company accounts and Company Tax Returns together closed on 31 March 2026. From 1 April 2026, HMRC's guidance is that companies should file annual accounts and Company Tax Returns using commercial software rather than the old combined service, while accounts still go to Companies House through its own filing routes.
Missing a filing deadline triggers automatic penalties — there's no warning first — so it's worth building reminders in well ahead of time rather than tracking dates manually.
Step 6: Compile Your Final Reports
Once everything is reconciled and reviewed, generate your key year end reports:
Profit and loss statement
Balance sheet
Cash flow statement
Notes to the accounts
These aren't just compliance paperwork — they're the clearest picture you'll get all year of how the business is actually performing, and a genuinely useful basis for planning the year ahead.
Step 7: File, Then Set Next Year's Foundations
File your accounts and tax return by their respective deadlines, then use what you've learned to make next year easier. If step 1 took longer than it should have, that's your cue to build monthly reconciliation into your routine rather than waiting for year end to come around again.
Why This Matters More Than It Seems
Small businesses make up the overwhelming majority of the UK business population, and company insolvencies are tracked closely every month — a reminder that clean, current financial figures aren't just a filing requirement, they're a genuine early-warning system for the health of the business.
Frequently Asked Questions
How long does year end accounts preparation usually take?
It depends almost entirely on how up to date your bookkeeping already is. Businesses that reconcile monthly typically move through Steps 1–4 in hours rather than days.
Can I file accounts myself, or do I need an accountant?
You can file them yourself, some limited companies choose to use an accountant or utilising industry software, given the risk of errors affecting your tax position. Either way, accurate records throughout the year make the process considerably smoother.
What happens if I miss a filing deadline?
Companies House and HMRC penalties are applied automatically and independently of each other, so missing one doesn't just cost you once. Penalties can escalate rapidly, so make sure you file on time to avoid excess charges.
