Tax calculator

Add sales tax to a price before tax, remove it from a total that already includes it, and subtract withholdings. US sales tax changes by state and city, so enter the rate where you sell.

How to use it

  • You enter the data
  • Smallo works it out
  • You get the result
  1. Enter the amount and pick whether it is before or after tax.
  2. Enter your local sales tax rate.
  3. Read the tax, the total and any amount withheld.

Frequently asked questions

How do I remove tax from a price that already includes it?

Divide the total by (1 plus the tax rate). A total of $108.25 with an 8.25% tax is $108.25 divided by 1.0825, which is $100 before tax, plus $8.25 of tax.

Are the rates set in this tool official?

No. The default rate of 8.25% is only an example. Check the sales tax rate for your state, county and city, and enter it before you use the results.