Sales Tax Calculator
Calculate sales tax in both directions — add tax to a price or back it out of a total.
Frequently Asked Questions
How do I back out tax from a total?
Use 'Remove tax from total' mode. The formula is: pre-tax = total / (1 + rate). Example: $107 total at 7% tax = $100 pre-tax, $7 tax.
Does this include any specific state or country rates?
No — you enter the rate. This makes the tool usable for any US state, Canadian province (GST/HST/PST), or country (VAT/GST).