Sales Tax Calculator
Move from pre-tax price to total, or work backward from a receipt total to the original subtotal.
Last updated: August 29, 2026
Financial planning notice
Finance tools are intended for planning and comparison, not as legal, tax, investment, or accounting advice.
Verify assumptions, rates, fees, and statutory rules before using the output in a real decision.
Interactive tool
The live form, validation, and result state for Sales Tax Calculator load after the page scripts run. The content below summarizes how the tool works and links to related pages in the catalog.
Add sales tax to a subtotal or reverse a tax-inclusive total using a known combined rate.
How to use Sales Tax Calculator
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Enter your inputs into the Sales Tax Calculator form.
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Adjust optional settings so the scenario matches your real-world case.
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Review the result, then tweak one variable at a time to compare outcomes.
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Keep your best scenario as a baseline for future decisions.
Financial calculators provide directional estimates. Confirm decisions with current lender, tax, or regulatory details.
Best use cases
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