UK Startup

Calculator · VAT-registered businesses

VAT calculator (add or remove)

Quickly add VAT to a net price, strip VAT out of a gross price, or estimate what you'd owe under the flat-rate scheme.

Tax year 2025/26

Calculator answer

Enter your figures to estimate the result for the 2025/26 tax year. The output is a planning estimate only and should be checked against HMRC guidance before filing or paying tax.

Result

£1,000.00 + £200.00 VAT = £1,200.00

Net (excl. VAT)
£1,000.00
VAT at 20%
£200.00
Gross (incl. VAT)
£1,200.00

Flat Rate Scheme — what would you pay?

Gross sale
£1,200.00
Flat-rate VAT due
£198.00

How this calculator works

UK VAT has three rates: 20% (standard — most goods and services), 5% (reduced — domestic fuel, children's car seats, etc.), and 0% (zero-rated — most food, books, children's clothes). Some things are exempt — different from zero, and you can't reclaim VAT on costs related to them.

You must register for VAT once your taxable turnover passes £90,000 in any rolling 12 months (threshold raised from £85k in April 2024). You can register voluntarily below that — useful if your customers are VAT-registered or your costs carry a lot of reclaimable VAT.

The Flat Rate Scheme lets businesses with turnover under £150k pay a fixed % of their gross turnover instead of tracking VAT on every purchase. The default rate for "limited cost traders" (those spending less than 2% of turnover on goods) is 16.5%, which effectively removes most of the benefit.