How to use this sales tax calculator
Enter the values requested above and select Calculate. Change any input to compare another scenario. The calculation runs locally in your browser and does not require an account.
Formula and method
Example
At a 5.5% tax rate, a $200 taxable purchase adds $11 in sales tax for a $211 total.
Tips for a useful result
This calculator uses the rate you enter; local exemptions and tax rules are not automatically applied.
What this calculator is useful for
Calculate sales tax and the final purchase total from a pre-tax price and tax rate. The result is intended for quick estimates, checking arithmetic and comparing scenarios. When a result affects a contract, tax filing, medical decision, building-code requirement or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the Sales Tax Calculator calculate?
Calculate sales tax and the final purchase total from a pre-tax price and tax rate.
How does the Sales Tax Calculator work?
Sales tax = pre-tax price × tax rate. Total = pre-tax price + sales tax.
Is the Sales Tax Calculator free to use?
Yes. ERICH Calculators is free to use and does not require an account.