How this calculator works
Estimate US sales tax and final total from a pre-tax amount and tax rate.
Example
If the pre-tax price is $100 and the sales tax rate is 8.25%, the final total is $108.25.
When to use it
Use this tool when you need a quick business estimate before setting a price, sending a quote, planning a campaign, comparing fees, or checking whether the numbers still make sense.
Important note
Results are estimates based on the numbers you enter. They do not replace professional accounting, tax, legal, lending, or financial advice.