Guide to the VAT Threshold 2025: HMRC Registration Rules, Calculations, and Penalties
The VAT threshold 2025 is £90,000 of taxable turnover, measured on a rolling 12-month basis, not the tax year. Any UK business whose taxable turnover exceeds this figure must register for VAT with HMRC within 30 days of the month in which the threshold was crossed.
The VAT deregistration threshold sits at £88,000. Both figures apply to the 2025/26 tax year per HMRC.
Key Takeaways
- The VAT registration threshold 2025 is £90,000 of taxable turnover, measured on a rolling 12-month basis, raised from £85,000 in the Spring Budget 2024 and confirmed unchanged for 2025/26.
- Once taxable turnover exceeds £90,000, a business has 30 days from the end of that month to register with HMRC. Failure to register on time results in a backdated VAT liability from the date the obligation began, plus penalties.
- The VAT deregistration threshold is £88,000, deliberately set £2,000 below the registration threshold to prevent businesses cycling in and out of the system over minor turnover fluctuations.
- The UK threshold is the joint highest in the OECD alongside Switzerland, keeping the majority of smaller businesses outside the VAT system entirely.
What Is the VAT Threshold for 2025 in the UK?
The VAT registration threshold 2025 is £90,000. Under the Value Added Tax Act 1994, any business whose taxable turnover exceeds this figure in a rolling 12-month period becomes legally required to register for VAT with HMRC.
The threshold has stood at £90,000 since 1 April 2024, when the Spring Budget raised it from £85,000.
The threshold applies equally to sole traders, limited companies, and partnerships. There is no separate rate for the self-employed or small businesses, the same £90,000 figure applies across every business structure.
What matters is taxable turnover: not profit, not total income, but the gross value of goods and services sold that are not exempt from VAT.
The UK’s position is notable in the international context. According to the Organisation for Economic Co-operation and Development (OECD), the UK threshold is the joint highest among OECD member states, matched only by Switzerland.
That positioning reflects a deliberate policy choice, keeping smaller businesses outside the VAT system reduces administrative friction and cost at the lower end of the market.
The figure itself is straightforward. What catches businesses out is the mechanism that determines exactly when that figure is reached.
What Counts Towards the VAT Threshold and What Doesn’t?
Not every pound of revenue a business generates counts towards the £90,000 VAT threshold for 2025/26. The calculation is based specifically on taxable turnover, and HMRC’s definition of what qualifies under VAT Notice 700/1 is more precise than most business owners realise.
Taxable turnover includes all sales of goods and services at the standard 20% rate, the reduced 5% rate, and the zero rate, including zero-rated items such as most food, children’s clothing, and books. Zero-rated sales are still taxable supplies.
They count in full. VAT-exempt supplies, such as financial services, insurance, health and welfare services, and most education, are a different category entirely and must be excluded from the threshold calculation.
| Counts Towards £90,000 Threshold | Does Not Count |
|---|---|
| Standard-rated sales (20%) | VAT-exempt sales (e.g. insurance, finance, education) |
| Reduced-rated sales (5%) | Sale of capital assets from the business |
| Zero-rated sales (0%) | Income outside UK VAT scope |
| Goods hired or loaned to customers | Grants and donations with no supply attached |
| Barter, part-exchange, or gifted goods | Statutory fees (e.g. certain licensing fees) |
| Business goods used personally | Disbursements passed through at cost |
Source: HMRC VAT Notice 700/1, Who Should Register for VAT.
A business providing a mix of taxable and exempt supplies, a financial adviser who also sells training courses.
For example, must separate the two income streams carefully. Only the taxable portion enters the threshold calculation. Getting this wrong in either direction creates a compliance risk: undercount and risk an undetected breach; overcount and potentially register unnecessarily.
Getting the turnover figure right is the first step. Knowing exactly when that figure triggers a legal obligation is the part most businesses underestimate.
How the Rolling 12-Month Calculation Works and Where Businesses Go Wrong?
The VAT threshold does not reset on 6 April. It is a rolling 12-month total, recalculated at the end of every calendar month. A business can cross £90,000 mid-year or mid-contract without a single accounting period clearly flagging the breach.
HMRC operates two legal triggers, and either one independently creates the obligation:
- The historic test: At each month end, the total taxable turnover for the preceding 12 consecutive months. If that figure exceeds £90,000, the business must register within 30 days of that month end.
- The future test: If a business reasonably expects to exceed £90,000 in the next 30 days alone, a large contract is confirmed, or a significant order is placed, registration is required immediately, before that window closes.
A practical example: a business turns over £7,200 per month. After 12 months, the rolling total sits at £86,400. One stronger month at £8,000 pushes the total to £87,200.
A single project worth £4,500 the following month takes it to £91,700. The historic test fires at the end of that month. Registration must be submitted within 30 days.
The VAT threshold uses two distinct legal triggers. The historic test fires when rolling 12-month taxable turnover exceeds £90,000 at any month end, requiring registration within 30 days.
The future test fires when a business expects to exceed £90,000 in the next 30 days alone, requiring immediate registration. Neither test aligns with the tax year.
The position does not reset after a slow month. It does not. Each month, the oldest figure drops off, and the newest is added. Cross the threshold in September, discover it in February, the liability has been running since October.
What Happens When You Go Over the VAT Threshold?
Crossing the VAT threshold triggers a defined set of legal and administrative obligations that begin on the effective date of registration, not on the date HMRC confirms it, and not on the date the business first charges VAT.
That distinction matters: liability runs from the effective date, regardless of when the paperwork is processed. From the effective date, the business must:
- Charge VAT at the correct rate on all taxable sales, 20% standard rate, 5% reduced rate, or 0% zero rate as applicable, and show VAT as a separate line on every invoice
- Issue valid VAT invoices displaying the VAT registration number, which businesses can verify using a VAT number check by company name.
- Submit VAT returns, quarterly in most cases, or annually under the Annual Accounting Scheme, exclusively through MTD-compatible software under Making Tax Digital
- Maintain digital VAT records for a minimum of six years, as required by HMRC under VAT Notice 700
- Pay HMRC the difference between output VAT collected from customers and input VAT reclaimed on business purchases
The compliance obligations are only part of the picture. HMRC data and research published by the Institute of Chartered Accountants in England and Wales (ICAEW) both document what is known as the cliff-edge effect: a measurable pattern of businesses near the £90,000 mark actively restraining growth to avoid registration.
Declining contracts, limiting trading hours, turning away clients, these are real behaviours with real costs, and they are a direct consequence of the threshold structure.
For a business genuinely close to £90,000, the question of whether to grow through the threshold or manage below it deserves deliberate analysis, not reactive avoidance.
Late Registration and VAT Penalties: What HMRC Can Charge
Missing the registration deadline does not pause the VAT obligation, the liability accumulates from the date it arose, whether HMRC identifies it or the business makes a voluntary disclosure.
Penalties are calculated as a percentage of net VAT owed from the date registration should have occurred.
- Up to 9 months late: 5% of net VAT owed
- Between 9 and 18 months late: 10% of net VAT owed
- More than 18 months late: 15% of net VAT owed
- Minimum penalty: £50, regardless of the VAT amount involved
The practical sting: if VAT was never charged to customers during the missed period, the business absorbs the entire backdated liability itself.
HMRC can reduce or waive penalties for unprompted voluntary disclosure, a genuine reasonable excuse, or a strong prior compliance record.
There is also a lesser-known exception route available in specific circumstances. If turnover exceeded £90,000 due to a single large contract or an unusual seasonal spike, a written exception application can be submitted to HMRC.
The argument is that future taxable turnover will remain below the £88,000 deregistration threshold on a sustained basis.
HMRC typically responds within 40 working days. If the application is refused, the effective date of registration is backdated to the original breach, and penalties apply in full from that point.
Should You Register for VAT Voluntarily Below the Threshold?
Voluntary VAT registration is available to any UK business making taxable supplies, regardless of turnover level.
For businesses selling primarily to other VAT-registered companies, the case is usually straightforward, input VAT on purchases is recovered immediately rather than absorbed as a cost.
For businesses selling direct to consumers, voluntary registration adds 20% to prices, which either gets passed on or erodes margin.
Voluntary registration tends to make sense when:
- Most customers are VAT-registered and can reclaim the VAT charged, making the addition cost-neutral to them
- Significant start-up or ongoing costs carry VAT the business currently cannot reclaim
- Turnover is approaching £90,000 and proactive registration avoids a reactive, last-minute process
- Zero-rated supplies apply, no output VAT is charged, but input VAT on costs is still fully reclaimable
Voluntary VAT registration below the £90,000 threshold makes commercial sense for most B2B businesses, allowing input VAT recovery on purchases before mandatory registration applies.
For B2C businesses whose customers cannot reclaim VAT, voluntary registration effectively raises prices by 20%, reducing competitiveness. The right decision depends on the customer base, not the turnover level.
The ICAEW consistently advises modelling both scenarios across a 12-month forward cash flow before deciding. Registering at a planned point, before the threshold forces the issue, gives a business time to reprice, notify clients, and update systems without pressure.
The VAT Deregistration Threshold 2025: When You Can Step Back Out
The VAT deregistration threshold for 2025 is £88,000. A registered business can apply to HMRC to cancel registration if it genuinely expects taxable turnover to stay below that figure for the next 12 months, not temporarily, but sustainably.
The £2,000 gap between registration (£90,000) and deregistration (£88,000) is deliberate. It prevents businesses from cycling in and out of the system over minor fluctuations.
Deregistration also carries a financial sting worth knowing: if assets are held at the point of deregistration and their total VAT value exceeds £1,000, a VAT charge on those assets may apply.
The history behind the current figure is worth understanding. The registration threshold sat at £85,000 from April 2017 to April 2024, the longest freeze in UK VAT history.
The Spring Budget 2024 raised it to £90,000. The Autumn Budget 2025 confirmed no further increase.
The Office for Budget Responsibility forecasts VAT receipts of £180.4 billion for 2025/26, a figure that explains why successive governments have treated threshold increases cautiously.
The House of Commons Library notes that even at £90,000, the threshold’s real value remains well below its 2017 equivalent once inflation is accounted for.
VAT Threshold 2025: Myth vs Reality
| Common Myth | What Is Actually True |
|---|---|
| The VAT threshold resets every April | The threshold is measured on a rolling 12-month basis and never resets at the tax year end |
| VAT registration is based on profit | Registration is triggered by taxable turnover, gross revenue from taxable supplies, not profit |
| Sole traders have a lower or different threshold | The £90,000 threshold applies identically to sole traders, partnerships, and limited companies |
| Crossing the threshold means paying VAT on all past sales | VAT applies only from the effective date of registration, historical sales before that date are not affected |
| Once VAT-registered, a business cannot deregister | Deregistration is available when taxable turnover is genuinely expected to remain below £88,000 |
Conclusion
The VAT threshold 2025 is £90,000 of taxable turnover, tracked monthly on a rolling basis, with a 30-day registration window and penalties that run from the day the obligation began. The deregistration threshold sits at £88,000. Neither figure is changing for 2025/26.
The businesses that handle it best are those that monitor rolling turnover every month rather than waiting for an annual accounts review to flag the breach.
The VAT threshold 2025 means a £90,000 compliance trigger for every UK business in the 2025/26 tax year, and when that trigger is missed, the liability lands squarely on the business that missed it.
FAQ
How long do I have to register for VAT after exceeding the threshold?
Thirty days from the end of the month in which taxable turnover first exceeded £90,000. For a business that crosses the threshold during May, the registration application must reach HMRC by 30 June. The effective date of registration is then 1 July. Missing this window triggers backdated liability from that effective date, not the discovery date.
What are the penalties for late VAT registration?
HMRC charges 5% of net VAT owed for up to 9 months late, 10% for 9–18 months, and 15% beyond 18 months. The minimum charge is £50. Voluntary disclosure before HMRC investigates typically reduces the penalty. A genuine, reasonable excuse, serious illness, for instance, can result in a full waiver.
Can I register for VAT voluntarily if my turnover is below £90,000?
Yes. Any UK business making taxable supplies can register voluntarily at any point. The primary benefit is recovering input VAT on business purchases. The advantage is greatest where customers are themselves VAT-registered and can recover the charge. Where they cannot, the added VAT typically increases prices or reduces margin.
Does the VAT threshold apply to overseas businesses selling to UK customers?
No. Non-established taxable persons (NETPs), businesses without a fixed UK establishment, are not entitled to the £90,000 threshold. An overseas seller making any taxable supply to UK customers must register for VAT immediately, from the very first sale, with no minimum turnover threshold applying.
Will the VAT threshold increase in 2026?
No increase has been confirmed. The Autumn Budget 2025 kept the threshold at £90,000 with no planned rise. With VAT receipts forecast at £180.4 billion for 2025/26 by the Office for Budget Responsibility, the fiscal case for a further threshold rise remains weak.
Disclaimer: This article provides general information only and does not constitute professional financial or legal advice; please consult HMRC or a qualified accountant for your specific business needs.
