Small Business Finance

How to Prepare for Year-End Accounts

8 min read

Last reviewed: 1 May 2025

Why year-end matters

Your year-end accounts feed into both your statutory accounts filed at Companies House and your CT600 corporation tax return to HMRC. Getting it right means less tax stress, fewer adjustments and a clearer picture of how your business performed.

8-week prep checklist

8 weeks out

  • Reconcile every bank, credit card and PayPal/Stripe account up to date
  • Chase outstanding sales invoices — aged debtors hurt your cash position
  • Review your fixed asset register and dispose of anything no longer in use

4 weeks out

  • Match all purchase invoices to bank payments; clear suppliers in dispute
  • Stock-take if you hold inventory; value at lower of cost or net realisable value
  • Review prepayments and accruals (rent, insurance, subscriptions)

Year-end week

  • Lock the period in your bookkeeping software (Xero/QuickBooks)
  • Snapshot bank balances on the last day of your accounting period
  • Run a draft P&L and balance sheet — flag anything that looks off

After year-end

  • Send everything to your accountant within 30 days
  • Approve the draft statutory accounts within 9 months of year-end
  • Pay corporation tax within 9 months and 1 day of year-end
  • File CT600 within 12 months of year-end

Common pitfalls

  • Director's loan account drifting overdrawn — triggers s.455 tax at 33.75%
  • Mixing personal expenses through the business account
  • Dividends without retained profits — illegal and reclassified as salary
  • Forgetting R&D claims — software, prototypes, process improvements may qualify

Ernest & Co prepare year-end accounts and corporation tax returns from £235/month. See pricing.

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