Your end of tax year checklist for UK small businesses

The tax year end doesn't have to be a scramble. Discover our essential checklist to keep your finances in order, avoid common mistakes, and ensure a smooth year-end with Fuller Figures Bookkeeping.

Beyond the deadline: why routine matters

The most important thing you can do for your business finances? Keep them up to date all year round. Good bookkeeping should feel routine, not rushed. When you consistently manage your accounts, the end of the tax year becomes a simple review, not a stressful marathon. Embrace routine, and you’ll find greater clarity and control over your business's financial health.

Your essential end of tax year checklist

Before the tax year ends, ensure these crucial steps are completed to avoid stress and potential penalties:

✅ 1. Make Sure All Income Is Recorded

Double-check that:

All sales and invoices are included

Cash payments haven’t been missed

Online income (Stripe, PayPal, etc.) is accounted for

Missing income can cause issues with HMRC — and correcting it later is far more stressful.

✅ 2. Get Your Expenses Up to Date

Go through your accounts and ensure:

All business expenses are recorded

Nothing has been missed (subscriptions, mileage, small purchases)

Personal and business expenses are clearly separated

👉 Remember: unrecorded expenses = paying more tax than you need to.

✅ 3. Organise Your Receipts

Make sure you have:

Receipts or invoices for all expenses

Digital copies stored safely (recommended!)

A clear system for tracking going forward

This is especially important if you’re ever asked for evidence.

✅ 4. Reconcile Your Bank Accounts

Your bookkeeping should match your bank statements.

Check that:

All transactions are accounted for

No duplicates or missing entries

Balances match exactly

This step is key to ensuring your numbers are accurate.

✅ 5. Check VAT (If You’re Registered)

If you’re VAT registered:

Ensure all returns are submitted

Double-check figures are correct

Make sure you’re compliant with Making Tax Digital

Mistakes here can lead to penalties, so it’s worth reviewing carefully.

✅ 6. Review Your Profit & Set Aside Tax

Now’s the time to:

Look at your profit for the year

Estimate how much tax you’ll owe

Set that money aside if you haven’t already

This avoids nasty surprises when your tax bill is due.

✅ 7. Complete Payroll Tasks (If Applicable)

If you have employees, make sure:

Payroll submissions are up to date

Year-end reports are prepared

Employee records are accurate

✅ 8. Plan for the New Tax Year

Don’t just look back — get ahead:

Set up a simple bookkeeping routine

Consider using software like Xero or QuickBooks

Decide if it’s time to outsource your bookkeeping

Common mistakes to avoid this tax year

Many small businesses stumble at tax year end, leading to unnecessary complications. This checklist helps you steer clear of:

  • ❌ Missing income – forgetting to include all payments received.
  • ❌ Overlooking expenses – not claiming everything you’re entitled to.
  • ❌ Unreconciled accounts – figures that don’t match bank statements.
  • ❌ Disorganised records – lost or incomplete receipts and invoices.
  • ❌ Last-minute panic – leaving everything until the deadline.
  • ❌ Unexpected tax bills – no clear view of profit or liability.

Most issues arise from leaving things too late. Your checklist keeps everything accurate, organised, and stress-free.

How Fuller Figures Bookkeeping can help

Fuller Figures Bookkeeping helps take the pressure off at tax year end by:

  • ✔ Getting your books fully up to date – no missing income or expenses.
  • ✔ Reconciling everything properly – so your numbers are accurate and reliable.
  • ✔ Organising your records – receipts, invoices, all in one clear system.
  • ✔ Giving you a clear view of your profit & tax position – no surprises.
  • ✔ Supporting you (or your accountant) – making submissions smooth and stress-free.

Instead of scrambling at the deadline, you go into year end feeling organised, confident, and in control 💚

Don’t Panic If You’re Behind

If your bookkeeping isn’t up to date yet — you’re not alone.

The important thing is to deal with it sooner rather than later. The longer it’s left, the more overwhelming it can feel.

Need Help Getting Everything Sorted?

ClickIf you’d rather not spend hours going through receipts, reconciling accounts, or worrying about whether it’s all correct…
That’s exactly what I help with.
At Fuller Figures Bookkeeping, I support small business owners by taking the stress of bookkeeping off their hands — so they can focus on running their business.
👉 Get in touch today to get your accounts back on track.