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Money & Finance · Free tool

Sales Tax Calculator

Compute sales tax from a pre-tax price, reverse-calculate pre-tax from a total, or compare rates across regions.

Updated April 2026
Subtotal$100.00
Tax$8.25
Total$108.25

Estimate — sales tax rules vary by jurisdiction, product type, and exemption. Verify exact rates with your state / local tax authority before pricing.

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What it does

Compute sales tax from a pre-tax price, reverse-calculate pre-tax from a total, or compare rates across regions.

Runs entirely in your browser — no upload, no account, no watermark. For more tools in this category see the full tools index.

How to use it

  1. Fill in the inputs or drop your file.
  2. Click the primary button to run.
  3. Copy or download the result.