Free Online Tool

VAT Calculator

Calculate VAT from subtotal or back out VAT from total. Supports multiple VAT rates with precise calculations and instant results.

Calculate VAT from Subtotal
Enter the amount excluding VAT to calculate the VAT amount and total

Enter the amount before VAT is added

Select a common rate or enter custom

Back Out VAT from Total
Enter the total amount including VAT to calculate the VAT portion and subtotal

Enter the total amount including VAT

Select a common rate or enter custom

Need more advanced VAT management?

Get access to automated VAT returns, multi-tenant support, and comprehensive reporting.

No credit card required • Cancel anytime

Why Use Our VAT Calculator?

Professional-grade calculations with accessibility and precision in mind.

Precise Calculations
Accurate VAT calculations with proper rounding to 2 decimal places, ensuring financial accuracy for your business.
Accessible Design
Built with accessibility in mind - keyboard navigation, screen reader support, and WCAG AA compliance.
Global VAT Rates
Support for common VAT rates from 0% to 25%, with easy selection and custom rate input.

How It Works

Two simple calculation methods for all your VAT needs.

1Calculate VAT from Subtotal
When you know the amount before VAT and want to add VAT.
Enter the subtotal amount (excluding VAT)
Select or enter the VAT rate
Get instant VAT amount and total
2Back Out VAT from Total
When you have a total including VAT and want to find the VAT portion.
Enter the total amount (including VAT)
Select or enter the VAT rate
Get the VAT portion and subtotal

Need More Advanced VAT Management?

This calculator is just the beginning. Get access to automated VAT returns, multi-tenant support, and comprehensive reporting with bVAT.

No credit card required • Cancel anytime