About this sales tax calculator
Calculate sales tax and the total price from a purchase amount and tax rate.
How to use it
Enter the values requested by the calculator. Results update in your browser as you change the inputs. Review the assumptions shown on the calculator before using the result.
Formula
tax = price × tax rate
Example
Enter the pre-tax price and applicable tax rate to estimate the tax and final total.
Frequently asked questions
What does the sales tax calculator show?
Calculate sales tax and the total price from a purchase amount and tax rate.
Are the results exact?
The result is calculated from the inputs and assumptions shown on this page. For important financial, health, tax, or legal decisions, verify the result with an appropriate professional or authoritative source.