What this tool does
Computes the tax amount and the tax-inclusive total from a pre-tax amount and a rate. You supply the rate; the tool does not determine which jurisdiction applies.
How to use it
- Enter the pre-tax amount.
- Enter the applicable rate as a percentage.
- Run it to get the tax amount and the total including tax.
Worked example
100 before tax at 10% gives 10 in tax and a total of 110.
Calculation method
Tax
net*rate/100Tax-inclusive total
net*(1+rate/100)Frequently asked questions
- How do I back the tax out of a tax-inclusive price?
- Divide the inclusive amount by (1 + rate/100) to get the pre-tax amount; the difference is the tax. From 110 at 10%, that is 100 and 10.
- What if several rates stack?
- Where state, city, and county rates combine, work out the combined rate and enter it once. This tool applies a single rate.
What this tool does not cover
Exemptions, deductions, and taxability determinations are out of scope. Confirm the applicable rate and whether tax applies with your local rules.