Sales tax math
Quick help
Calculate sales tax math with your own numbers.
- Enter your costs, amounts, and rates. Use one currency throughout.
- Choose Calculate and read the formula below each result.
- Export your inputs to keep a scenario. Import it here to use it again.
What it does not do: One user-entered rate on the whole amount. No jurisdiction, exemption, or filing rules.
Inputs stay on this page. Export before closing; they are not saved automatically.
Import is kept in this page's memory. The original profile file is unchanged.
One user-entered rate on the whole amount. No jurisdiction, exemption, or filing rules.
Preview / results
Enter your details on the left to prepare your result.