Sales Tax Calculator

Calculate sales tax and final purchase price.

Results are estimates and may differ from actual tax, payroll, accounting or investment outcomes.

Sales tax calculator

Estimate sales tax for a purchase by entering the pre-tax amount and applicable tax rate. Local rules can include multiple state, county or city rates.

How it works

Enter your values, choose the relevant units or options, and review the calculated result. For financial and market tools, displayed figures are calculations and can differ from provider quotes, fees, spreads, taxes or local rules.

Frequently asked questions

How is sales tax calculated?

Sales tax is generally calculated by multiplying the taxable purchase amount by the applicable tax rate.

Does every location have the same sales tax?

No. Rates and rules can vary by jurisdiction, product and customer status.

Is the result an official tax filing?

No. It is a calculation aid and does not replace tax advice or official tax documents.

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