Free browser tool
VAT Calculator UK
Add or extract VAT for quotes, invoices, and pricing decisions.
!
This calculator is for estimates only. Check the applicable VAT rules for your exact case before issuing invoices or returns.
Calculator
Results update as you type
Tax base
$88.50
Tax amount
$11.50
Tax rate
13%
Example
UK VAT planning keeps the math simple: it shows the before-tax and after-tax values instantly in the browser.
Formula
The math behind the result
VAT = base price × VAT rate. Total = base price + VAT. Reverse mode finds the base price from a tax-inclusive total.
How it works
A clean flow from input to answer
- 1Enter a base price or a VAT-inclusive price.
- 2Set the UK VAT rate you want to model.
- 3Read the base, VAT amount, and total instantly.
FAQ
Common questions
Is the calculator fixed to one rate?
No. You can enter any rate to model different VAT scenarios.
Does it support reverse VAT?
Yes. It can back out the tax base from the total price.
Can businesses use it for quoting?
Yes. It is useful for quick quote and invoice planning.
Does it require signup?
No. It runs directly in the browser.
Is my pricing data stored?
No. The calculation stays local to the device.