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Tax United Kingdom

VAT Registration Obligations Check

Check whether your business needs to register for VAT and whether your invoicing is compliant.

Start free check 8 questions · 5 minutes · No signup

Did you know? The numbers behind this check.

  • Rolling 12-month turnoverTest
  • Backdated VAT liability + penaltiesLate registration
  • Making Tax Digital (MTD) compatible softwareFiling
  • Usually quarterlyFiling frequency

Why this matters.

Businesses must register for VAT with HMRC if their VAT-taxable turnover exceeds the registration threshold in any rolling 12-month period (not just the tax year) — and crucially, this is a rolling test, so a strong month can tip a business over the threshold partway through the year without the owner realising. Registering late means you may owe VAT on sales made before you registered, even if you didn’t charge customers for it at the time, plus potential penalties for late registration.

Once registered, businesses must charge VAT correctly, issue VAT invoices with specific required information, file returns (usually quarterly) under Making Tax Digital rules using compatible software, and keep digital records. Common issues for newly-registered businesses include forgetting to update pricing and invoices to include VAT, applying the wrong VAT rate (standard, reduced, zero-rated, or exempt), and not realising certain supplies have special VAT rules (e.g. digital services, EU sales, the flat rate scheme).

Have these to hand.

  • Your turnover for the last 12 months (rolling, not just financial year)
  • Your current invoice template
  • Whether you sell goods/services that might be zero-rated, reduced-rate, or exempt

What you’ll get.

  • 1A score out of 100Where you stand today, at a glance.
  • 2Findings ranked by riskWhat could cost you, highest risk first.
  • 3A plan with timeframesWhat to fix first and by when.

This check reviews your VAT registration status against the rolling threshold test and, if registered, checks your invoicing and filing approach for common compliance gaps.

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General guidance only, not legal advice. Consult a qualified solicitor or adviser in your jurisdiction for specific issues.