FreeCalculators

VAT / GST / Sales Tax Calculator

Calculate VAT, GST, or sales tax effortlessly. Our VAT calculator helps you manage tax on any gross or net amount with ease.

Business & Tax · Reviewed by FreeCalculators Editorial · Updated 2026-08-20

Your details

The price as it lands on the invoice.

20% UK VAT, 18% GST (India), your local sales tax.

ShareWhatsAppXFacebookEmail

How it works

The VAT / GST / Sales Tax Calculator is a powerful tool that helps you compute the net amount, tax amount, and gross amount based on a specified tax rate. It employs a simple yet effective formula: Net = Gross / (1 + rate/100) and Tax = Gross - Net. This means that you can easily determine how much of your total payment is tax and how much is the actual price of the product or service. For example, if you have a gross amount of £240 and you want to calculate the VAT at a rate of 20%, you would first divide £240 by 1.20. This gives you a net amount of £200. To find the VAT amount, you simply subtract the net amount from the gross amount, which results in £40. Therefore, from the total £240, £200 is the net price and £40 is the VAT. Interpreting the primary output is straightforward. The calculator provides you with three key figures: the net amount, the tax amount, and the gross amount. The net amount represents the price before tax, the tax amount shows how much tax is applied, and the gross amount is the total you will pay. This clarity allows you to make informed financial decisions, whether you're managing personal finances or running a business. One common mistake when using this calculator is forgetting to adjust the tax rate for different regions or products. Tax rates can vary significantly, and using an incorrect rate can lead to miscalculations. Always ensure that you are using the correct tax rate applicable to your situation to achieve accurate results. This calculator is designed to simplify your tax calculations and help you manage your finances effectively.

Formula


                Net = Gross / (1 + rate/100) | Tax = Gross - Net

Tips

  • Always double-check the tax rate applicable in your region to ensure accurate calculations.
  • Consider using this calculator for various gross amounts to understand how tax impacts your pricing strategy.
  • Keep records of your calculations for future reference, especially for tax reporting purposes.
  • Use the calculator to compare different tax rates and their effects on your overall pricing.

Frequently asked questions

What is the formula used in the VAT calculator?
The formula is Net = Gross / (1 + rate/100) and Tax = Gross - Net.
How do I calculate the net amount if my gross amount is £240 and the tax rate is 20%?
The net amount would be £240 / 1.20 = £200.
If I want to find the tax amount from a gross amount of £240 at a 20% rate, what do I do?
Subtract the net amount from the gross amount: £240 - £200 = £40.
Can I use this calculator for different tax rates?
Yes, you can input any tax rate to see how it affects your gross and net amounts.