How to use UK VAT Calculator
Choose whether to add or remove VAT, enter the amount and tax rate, and review the net, VAT and gross figures.
What the tool does
Add VAT to a net amount or remove VAT from a gross amount using the rate you select, with net, VAT and gross totals shown.
Supported inputs
The labelled numeric values and units shown in the calculator, together with any rate, period or assumption selector relevant to the estimate.
Actual output
A displayed numeric result with a supporting breakdown where the calculation provides one.
Calculation or processing method
Adding VAT uses net × (1 + rate). Removing VAT uses gross ÷ (1 + rate); the VAT amount is the difference.
Privacy and processing
The calculation runs locally in the browser; important decisions should use independently verified figures.
Limitations
This calculator performs arithmetic only and is not tax advice. Confirm the correct VAT treatment and rate for your transaction.
Common mistakes
Check that the selected input type, units and output format match the task. Do not discard the source before opening the result, and do not treat a preview, estimate or converted file as verified until you have reviewed it.
Sources, assumptions and review
Uses the VAT rate selected by the user. Results are estimates, rounded for display, and should be independently verified before an important medical, tax or financial decision.
Last reviewed: 22 July 2026. Prepared and maintained by the ToolTapGo editorial team.
Frequently asked questions
What can I use UK VAT Calculator for?
Add VAT to a net amount or remove VAT from a gross amount using the rate you select, with net, VAT and gross totals shown.
What input does UK VAT Calculator accept?
The labelled numeric values and units shown in the calculator, together with any rate, period or assumption selector relevant to the estimate.
What should I check after using UK VAT Calculator?
This calculator performs arithmetic only and is not tax advice. Confirm the correct VAT treatment and rate for your transaction.
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- Profit Margin Calculator — Calculate gross profit, profit margin and markup from cost and selling prices.