When to Register for VAT: A Complete 2026 Guide on Thresholds, Rules, and HMRC Penalties
UK businesses must register for VAT once taxable turnover exceeds £90,000 within any rolling 12 month period, or when turnover is expected to pass that figure in the next 30 days alone. HMRC confirmed the figure held firm as of April 2026.
Key Takeaways
- The UK VAT registration threshold is £90,000 of taxable turnover in any rolling 12 month period, confirmed by HMRC through 2026.
- Businesses must also register if turnover is expected to exceed £90,000 within the next 30 days alone, regardless of the 12 month total.
- Late VAT registration can trigger penalties starting at 5% of the VAT owed, rising to 15% for delays beyond 18 months.
When to Register for VAT?
Businesses become legally required to register for VAT when taxable turnover exceeds £90,000 in any rolling 12 month period. HMRC measures this on a continuous basis rather than against a calendar year or a fixed tax year.
HMRC tracks turnover on a continuous rolling basis, checking the total earned in the trailing 12 months at the end of every single month.
Taxable turnover includes standard rated and zero rated sales, but excludes exempt supplies such as certain insurance and finance services. Once the £90,000 figure is crossed, the business has 30 days from the end of that month to register with HMRC.
Registration then takes effect from the first day of the second month after the threshold was crossed.
This requirement is set out in the VAT Act 1994 and confirmed on GOV.UK. Checking that trailing total against £90,000 at the close of every month is the surest way to catch the trigger point in time.
The Two Tests That Trigger VAT Registration
Two separate tests can trigger the requirement to register for VAT, and either one alone is enough to create the obligation.
- The backward looking test. At the end of every month, check the total taxable turnover for the previous 12 months. If that figure has passed £90,000, registration becomes compulsory.
- The forward looking test. If turnover is expected to exceed £90,000 in the next 30 days alone, for example after signing one large contract, registration is required immediately, without waiting for the 12 month total to catch up.
A cafe earning £7,000 a month for 13 consecutive months reaches £91,000 and must register under the backward looking test, even without ever landing one large single contract. Either test alone is enough to bring a business into the registration window, regardless of the other.
UK VAT Registration Threshold Figures and the 2026 Rumour
The VAT registration threshold has stood at £90,000 since 1 April 2024, and it remained unchanged through 2026 despite speculation to the contrary. Before that date the threshold sat at £85,000, where it had been frozen for seven years.
| Period | VAT Threshold |
|---|---|
| Before 1 April 2024 | £85,000 |
| From 1 April 2024 | £90,000 |
| 2025 to 2026 | £90,000, no change |
A separate, lower deregistration threshold of £88,000 applies to businesses whose turnover later falls back down.
Widely circulated claim: commentary published in late 2025 suggested the threshold could fall to somewhere between £60,000 and £70,000 from April 2026.
Correct position: the threshold stayed at £90,000, and no reduction was ever legislated.
Source: House of Commons Library, citing a Parliamentary Question answered on 19 March 2026, a position HM Treasury also confirmed ahead of the Spring Statement.
When to Register for VAT as a Sole Trader?
The £90,000 threshold and both trigger tests apply identically to sole traders as they do to limited companies or partnerships. There is no separate, lower threshold for the self employed.
Sole traders should register for VAT once any of the following applies:
- Combined turnover from all self employed trades passes £90,000 in a rolling 12 month period.
- A single large contract is expected to push turnover past £90,000 within the next 30 days.
- Turnover from a side business is added to an existing main trade and the two combined cross the threshold.
A sole trader running both a market stall and a freelance design business must add both turnovers together when checking against £90,000.
Anyone newly self employed who has not yet done so should apply for UTR number before completing VAT registration, since HMRC asks for this reference on the application form. VAT Notice 700/1 confirms that HMRC counts all business income together, not each trade separately.
Should You Voluntarily Register for VAT Before You Have To
Businesses below £90,000 can register for VAT voluntarily at any point, and for some it makes financial sense to do so before the threshold forces the decision.
Voluntary and mandatory registration carry the same rules and obligations, so the only real difference is timing.
Voluntary registration tends to suit businesses selling mainly to other VAT registered companies, since those customers can usually reclaim the VAT charged and input tax on purchases becomes reclaimable too.
It suits businesses selling directly to the public far less well, since VAT then simply raises the price the customer pays with nothing to reclaim on the other side. A sole trader spending heavily on stock or equipment early on may still benefit from registering ahead of the threshold, purely to reclaim input tax already paid.
Is Being VAT Registered Really Killing Your Business?
VAT registration only genuinely damages a business when it sells mainly to consumers who cannot reclaim the tax themselves.
A sole trader charging £100 for a service before registration effectively loses part of that price to VAT afterwards, unless the price rises to cover it, and raising prices risks losing price sensitive customers.
| Customer Type | Impact of VAT Registration |
|---|---|
| VAT registered business customers | Minimal, since VAT charged is reclaimable by the customer |
| Direct consumer customers | Significant, since the full 20% standard rate adds to the price with nothing to reclaim |
The real pressure from VAT registration falls almost entirely on consumer facing trades, such as hairdressers, tradespeople, and small retailers, where competitors sitting just under the £90,000 threshold can undercut a newly registered business by the full 20% standard rate.
Deliberately staying under the threshold to avoid this, sometimes called bunching, is legal, though it puts a ceiling on how far the business can grow.
How to Register for VAT With HMRC?
Registering for VAT is completed online through the Government Gateway in most cases, and HMRC typically confirms a VAT number within around 30 days.
- Create or sign in to a Government Gateway account.
- Enter turnover figures, business details, and the date the threshold was crossed or is expected to be crossed.
- Choose a VAT accounting scheme suited to the business, such as the Flat Rate Scheme for simplified reporting.
- Submit the application and wait for HMRC to confirm the effective date of registration.
- Receive the VAT number and begin charging VAT from the confirmed effective date, even if the number itself has not yet arrived.
Once the number arrives, a VAT number check by company name confirms it has registered correctly on HMRC’s records. Errors on the application can delay the process well beyond 30 days, so accurate turnover figures matter from the first submission.
Trading during that wait does not delay the VAT liability itself, and it must be accounted for retrospectively once the number lands.
VAT Registration: Myth vs Reality
Several persistent myths about VAT registration are not supported by HMRC rules, and some lead directly to late registration penalties.
| Myth | Reality |
|---|---|
| VAT is based on profit | VAT registration is based entirely on turnover, not profit. A business can register while making a loss. |
| The first £90,000 is taxed retroactively once registered | The first £90,000 stays untaxed. VAT only applies to sales made after the effective registration date. |
| The threshold was cut to around £60,000 to £70,000 in 2026 | The threshold remained £90,000 throughout 2026, confirmed by HMRC and the House of Commons Library. |
| Sole traders have a lower threshold than companies | The £90,000 threshold and both trigger tests apply identically to every business structure. |
| Voluntary registration is only for large businesses | Any business below the threshold can register voluntarily, regardless of size. |
| Missing the deadline by a few days carries no real penalty | Late registration penalties start at 5% of the VAT owed and rise the longer the delay continues. |
GOV.UK carries the live figure, which is the fastest way to rule out an outdated version of any of these claims.
What Happens After You Register for VAT?
Once VAT registration takes effect, two main obligations begin immediately: filing digital VAT returns and charging output tax correctly on every applicable sale.
Making Tax Digital and VAT Returns
Making Tax Digital requires VAT registered businesses to keep digital records and submit returns using compatible software from the effective date of registration. Most businesses file quarterly, though the VAT Cash Accounting Scheme offers simplified reporting for smaller traders managing cash flow pressure.
Penalties for Late Registration
HMRC applies a late registration penalty on a sliding scale:
- A delay of up to 9 months carries a 5% penalty on the VAT owed.
- Delays between 9 and 18 months rise to 10%.
- Delays beyond 18 months reach 15%.
These penalties apply on top of the VAT itself, which remains payable from the correct effective date regardless of when registration actually happens.
Conclusion
Register for VAT once taxable turnover passes £90,000 in a rolling 12 month period, or sooner if that figure is expected within the next 30 days alone.
The figure held steady through 2026 despite recent speculation. Knowing exactly when to register for VAT protects a business from late penalties. VAT registration becomes compulsory for UK SMEs the moment turnover crosses £90,000 in 2026.
FAQ
Is the first £90,000 of turnover VAT free?
Yes. No VAT is owed on turnover earned before the business crosses the threshold or its effective registration date, whichever applies first. Once registered, VAT applies only to sales made from that date forward, not retroactively to earlier turnover already banked.
Who is required to be VAT registered?
Any business, including sole traders and partnerships, whose taxable turnover exceeds £90,000 in a rolling 12 month period. Businesses expecting to exceed that figure within the next 30 days alone must also register immediately, regardless of the 12 month total at that point.
How long does VAT registration take with HMRC?
Typically around 30 days from submission through the Government Gateway, though HMRC can take longer during busy periods. A VAT number is issued once the application is approved, and the effective registration date applies from that point regardless of any processing delay.
Should a sole trader register for VAT before reaching the threshold?
It depends on the client base. Sole traders selling mainly to VAT registered businesses often benefit from voluntary registration, since input tax becomes reclaimable. Those selling directly to consumers usually see little advantage until registration becomes compulsory at £90,000.
Disclaimer: This article is for informational purposes only; please consult HMRC or a certified tax professional for official financial advice tailored to your business.
