What is UK VAT Threshold Calculator?
A UK VAT Threshold Calculator calculates VAT inclusive and exclusive amounts. It applies the standard formula to the values you enter and returns the result instantly, without sending any data to a server. £90,000 limit (since April 2024), de-registration £88,000.
UK VAT Threshold Calculator
Check when your turnover will pass the £90,000 VAT registration threshold (since 1 April 2024). Compares standard 20% VAT to the Flat Rate Scheme. De-registration kicks in below £88,000.
You must register for UK VAT once your rolling 12-month turnover passes £90,000 (since 1 April 2024). You can de-register if turnover drops below £88,000. The Flat Rate Scheme (FRS) is available up to £150,000 turnover and is usually cheaper for service businesses with few costs.
Inputs
How to use it
- Pick your turnover period: monthly, quarterly, or annual.
- Enter the turnover for that period (excluding any VAT). The tool annualises it.
- Set your expected growth rate. We project when you’ll cross the £90,000 line.
- Pick your business sector to load its Flat Rate Scheme percentage.
- Estimate your input VAT (typical 2% to 8% of turnover for consultants, 10% to 25% for retail / catering with stock).
About this calculator
The UK VAT registration threshold rose from £85,000 to £90,000 on 1 April 2024 - the first increase since 2017. The de-registration threshold rose to £88,000 (was £83,000). The threshold uses a rolling 12-month total, NOT a tax-year total. You must register within 30 days if you cross it OR if you expect to in the next 30 days alone.
Standard VAT means charging 20% on most B2B and B2C sales (5% reduced rate on energy + sanitary; 0% on food, books, kids clothing). You reclaim VAT charged by suppliers. The net (output VAT minus input VAT) is paid quarterly.
The Flat Rate Scheme (FRS) lets you pay HMRC a fixed percentage of your VAT-inclusive turnover instead of accounting for input + output. Eligible businesses must have turnover under £150,000 (excluding VAT). You get a 1% discount in your first year. Limited cost traders (low-cost service businesses) must use 16.5%.
When in doubt, register voluntarily before crossing. You can reclaim VAT on stock + capital purchases up to 4 years pre-registration (services up to 6 months). The downside: you must charge 20% to consumers who cannot reclaim it - effectively absorbing 16.7% of your previously-tax-free price.
Real-world use cases
Approaching the limit
Track monthly to know when you’ll cross. HMRC fines for late registration are typically 5% to 15% of unpaid VAT.
Choosing FRS vs standard
A consultant on £100k with £2k input VAT pays roughly £20k standard (£20k - £2k = £18k effective) vs £14.5k FRS. FRS wins.
Voluntary registration
B2B startups often register early to reclaim setup VAT (laptops, software, office). Charging clients 20% VAT is no problem - they reclaim it.
Multiple businesses
HMRC may treat connected businesses as one for VAT (anti-disaggregation rules). Splitting just to stay under £90k is risky.
What it handles
- £90,000 registration + £88,000 de-registration thresholds (post-April 2024)
- Months-to-threshold projection at user growth rate
- Flat Rate Scheme vs standard scheme comparison
- Pass-through vs absorption pricing
What it does NOT handle
- EU VAT MOSS or import / export VAT calculations
- Reverse charge supplies (e.g. construction CIS)
- Partial exemption rules for mixed taxable / exempt income
- Cash vs accrual accounting timing
Common mistakes
- Watching tax-year totals instead of rolling 12-month - the trigger is rolling.
- Forgetting that voluntary deregistration needs turnover to genuinely fall below £88k.
- Using FRS when on a high-cost trade like e-commerce - standard nearly always wins.
- Not realising the 1% FRS discount only applies in the first 12 months of VAT registration.
Frequently asked questions
What is the UK VAT threshold for 2024-25 and 2025-26?
The VAT registration threshold is £90,000, in force since 1 April 2024 (it was £85,000 before). The de-registration threshold is £88,000. These figures use rolling 12-month turnover, not the tax year.
When do I have to register for VAT?
You must register within 30 days if your rolling 12-month taxable turnover exceeds £90,000, OR if you expect it to exceed £90,000 in the next 30 days alone (large one-off contract). Backdate to the start of the month after the breach.
What is the Flat Rate Scheme?
The Flat Rate Scheme (FRS) lets eligible businesses pay HMRC a fixed percentage of their VAT-inclusive turnover instead of tracking input + output VAT. Eligible if turnover is under £150,000. Rates vary by sector (4% retail of food, 12% to 14.5% most services, 16.5% for limited cost traders).
Should I register for VAT voluntarily?
Often yes if your customers are VAT-registered businesses (B2B) - you can reclaim setup VAT and your invoiced VAT is reclaimed by them, so net cost is zero. Often no if your customers are consumers (B2C) - you either absorb 20% or raise prices and lose competitiveness.
What is the limited cost trader rate?
A flat 16.5% rate applied to limited cost traders since April 2017. You’re a limited cost trader if your VAT-inclusive goods spend is less than 2% of turnover OR less than £1,000/yr. This catches most consultants, designers, IT services etc., who would have benefited from low FRS rates.
Can I deregister if my turnover falls?
Yes - if your taxable turnover for the next 12 months is expected to be below £88,000, you can apply to HMRC to deregister. There can be a final VAT charge on assets you keep (stock, equipment).
What VAT rate applies to my product?
Standard 20% on most goods + services. Reduced 5% on domestic energy + sanitary products + child car seats. Zero rate on most food, children’s clothing, books, newspapers. Exempt (no VAT, no reclaim) on insurance, financial services, education, health.
Do I charge VAT on services to clients abroad?
For B2B services to customers outside the UK, the place of supply is usually the customer’s country, so the supply is outside the UK VAT system (no UK VAT). For B2C and certain B2B services (land, events, catering), different rules apply. Get advice for international.