When does a UK business have to register for VAT?
VAT registration becomes compulsory when taxable turnover passes the threshold set by HMRC, measured over a rolling twelve months or expected within thirty days. Voluntary registration is allowed below the threshold.
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How it works
Turnover is counted on taxable supplies, not on total income, so exempt and outside-scope income is excluded. Once registered, the business charges VAT, files returns digitally and keeps records under Making Tax Digital.
Commonly mixed up with
The threshold applies to a rolling period, not a calendar or accounting year, which is the most common misreading.
When does a UK business have to register for VAT?
| Knowledge, London | Business and finance |
|---|---|
| Short answer | VAT registration becomes compulsory when taxable turnover passes the threshold set by HMRC, measured over a rolling twelve months or expected within thirty days. Voluntary registration is allowed below the threshold. |
| How it works | Turnover is counted on taxable supplies, not on total income, so exempt and outside-scope income is excluded. Once registered, the business charges VAT, files returns digitally and keeps records under Making Tax Digital. |
| Commonly mixed up with | The threshold applies to a rolling period, not a calendar or accounting year, which is the most common misreading. |
| Last reviewed | 2026-08-08 |
Short questions
- What is the current threshold?
- HMRC publishes the amount, and it changes, so check the source.
- Can I register voluntarily?
- Yes, below the threshold, which allows input VAT recovery.
- Does a foreign company register?
- Different rules apply to businesses without a UK establishment.
- How often are returns filed?
- Quarterly filing is standard, with other cycles available.
- Where are the rules?
- HMRC publishes VAT registration guidance.
Sources
More in this track
- How do you register a company in the UK?
- Can a foreign founder open a UK business bank account?
- How does UK corporation tax work?
- What does an employer need before hiring in the UK?
- What decides office costs in London?
- What accounts must a UK company file?
- Why is London a financial centre?
- What is the difference between a business visit and working in the UK?
- Branch or subsidiary: how does a foreign company enter the UK?
These pages explain how the rules work and link the authority that owns them. They are not legal, tax or immigration advice, and amounts and thresholds change, so open the source before you act.
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