About Sales Tax Calculator
Estimate tax on a tax-exclusive price or extract the tax included in a tax-inclusive price. Rates and rounding rules differ by jurisdiction.
How to use it
- Choose whether tax is included.
- Enter an amount and tax rate.
- Calculate the net amount, tax and total.
Frequently asked questions
How is included tax calculated?
The net price is the total divided by 1 plus the tax rate as a decimal. Tax is the difference.
Is this official tax advice?
No. Check local rules and invoices for the correct rates and rounding.