Value Added Tax (VAT) is a consumption tax that UK businesses charge on taxable sales. Whether you need to register depends on your turnover — but registration is sometimes worth doing even before you hit the legal threshold.
The Compulsory Registration Threshold
For 2025/26, the VAT registration threshold is £90,000 of VAT-taxable turnover in any rolling 12-month period.
You must register with HMRC within 30 days of the end of the month in which your turnover first exceeds this threshold. If you fail to register on time, HMRC can charge penalties and back-date VAT liability.
What Counts as Taxable Turnover?
Taxable turnover includes sales of standard-rated (20%), reduced-rated (5%), and zero-rated (0%) goods and services. It does not include:
- Exempt supplies (e.g., most financial services, insurance, education)
- Your own salary (if employed)
- Sales of capital assets not part of normal business activity
Standard VAT Rates
| Rate | Applies To |
|---|---|
| 20% (Standard) | Most goods and services |
| 5% (Reduced) | Domestic energy, children’s car seats, some renovation work |
| 0% (Zero) | Food (most), books, children’s clothing, new residential housing |
| Exempt | Insurance, financial services, health, education |
Voluntary Registration: When It Makes Sense
You can register voluntarily even if your turnover is below £90,000. This can be advantageous if:
1. Your customers are VAT-registered businesses. They can reclaim the VAT you charge, so your prices are effectively unchanged to them. You benefit by reclaiming VAT on your own purchases.
2. You have significant VAT-able costs. Newly started businesses with large equipment or property costs can reclaim the VAT — sometimes generating a VAT repayment from HMRC.
3. You want to appear larger/more established. Being VAT-registered signals a certain level of trading activity.
Voluntary registration is generally not beneficial if your customers are mainly individuals (consumers) who cannot reclaim VAT, as adding 20% to your prices may make you less competitive.
Accounting Schemes for Small Businesses
HMRC offers simplified VAT accounting for small businesses:
- Flat Rate Scheme: Pay a fixed percentage of gross turnover rather than calculating VAT on each transaction (available up to £150,000 turnover).
- Cash Accounting: Only account for VAT when you actually receive/pay money — helpful for businesses with late-paying customers.
- Annual Accounting: Submit one return per year with quarterly payments on account.
Key Takeaway
Once you hit £90,000 in taxable turnover, registration is non-negotiable. If you are approaching the threshold, factor the administrative burden and pricing impact into your business planning well in advance. Use our VAT calculator to check figures and model different scenarios.