How to use Sales Tax Calculator
- Enter the amount and the tax rate.
- Choose whether the amount is before or after tax.
- Read the tax and the other amount.
About this tool
When tax is added, tax = price x rate and total = price + tax. When tax is included, the pre-tax price is the total divided by 1 plus the rate. Rates differ by state and city, so enter your local combined rate.
Results are estimates for planning and education, not financial advice. Real offers can include fees, rounding and rules that are not modelled here.
Frequently Asked Questions
- How do I remove sales tax from a total?
- Choose "amount includes tax". The tool divides by 1 plus the rate.
- Where do I find my rate?
- Check your state or local tax authority, or a receipt from a local store.
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