Financial

Sales Tax Calculator

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Use this sales tax calculator for a clear financial estimate. Results update instantly in your browser.

What this calculator does

Add sales tax to a pre-tax price or separate tax from a tax-inclusive amount.

How to use this calculator

  1. Choose the price type, then enter price and tax rate.
  2. Review the calculation assumptions before using the result.
  3. The result splits net price, tax, and total price.

How to calculate

Gross = net × (1 + tax rate)

Choose whether the entered price is before tax (net) or after tax (gross), then enter the tax rate.

Worked example

A net price of 100 at 8.25% has 8.25 tax and a gross price of 108.25.

Understanding your result

The result splits net price, tax, and total price.

  • Tax rules and rates vary by location.
  • Double-check values and units before calculating.

Frequently asked questions

What does this sales tax calculator do?

Add sales tax to a pre-tax price or separate tax from a tax-inclusive amount.

How do I use this sales tax calculator?

Choose the price type, then enter price and tax rate.

What does the result mean?

The result splits net price, tax, and total price.

What should I check before relying on it?

Tax rules and rates vary by location.

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