Free UK VAT Calculators
Add or remove VAT, check the registration threshold and estimate VAT for invoices or margin scheme sales. Clear results, useful explanations and no sign-up.
Add or remove VAT in seconds
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View all calculators →VAT Calculator UK (2026)
Add or remove VAT at the standard, reduced or zero rate.
Use calculator →▦Reverse VAT Calculator UK
Find the original price and VAT included in a total.
Use calculator →▦VAT Invoice Calculator
Calculate net, VAT and gross totals across invoice lines.
Use calculator →▦VAT Registration Threshold Calculator
Compare rolling 12-month taxable turnover with the UK threshold.
Use calculator →▦VAT Flat Rate Scheme Calculator
Estimate a flat rate payment from VAT-inclusive sales.
Use calculator →▦VAT Margin Scheme Calculator
Estimate VAT due on a qualifying second-hand goods margin.
Use calculator →▦Profit Margin Calculator
Calculate gross profit, margin and markup.
Use calculator →▦Percentage Calculator
Find a percentage of an amount.
Use calculator →VAT guides
What is VAT in the UK?
What VAT means and when it applies.
Read guide →UK VAT Rates 2026
Standard, reduced and zero-rated supplies.
Read guide →How to Calculate VAT
The formulas for adding and removing VAT.
Read guide →VAT Registration Threshold
Understand the £90,000 rolling turnover threshold.
Read guide →VAT Exempt vs Zero Rated
Why a zero rate differs from exemption.
Read guide →