Sales Tax Calculator
Calculate sales tax and total price on a purchase.
Amortization schedule
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Showing first 12 of months.
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Introduction
Sales Tax Calculator — Calculate sales tax and total price on a purchase. Enter Amount, Tax rate (%) to get an instant, accurate result.
Formula
Tax = amount × tax rate %. Total = amount + tax.
Step-by-step
- Enter the Amount.
- Enter the Tax rate (%).
- Click Calculate to see your result instantly.
Real-world example
Example: With Amount = 100, Tax rate (%) = 8, the Sales Tax Calculator gives Tax: 8, Total: 108.
Frequently Asked Questions
Does this handle combined state and local tax rates?
Yes — just enter your combined effective sales tax rate for the jurisdiction.
Can I use this to back out tax already included in a price?
No, this calculator adds tax to a pre-tax amount; it does not extract tax from a tax-inclusive total.
What inputs does the Sales Tax Calculator need?
You'll need to provide: Amount, Tax rate (%). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Sales Tax Calculator?
The Sales Tax Calculator applies the formula exactly as calculated — Tax = amount × tax rate %. Total = amount + tax. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Are these results guaranteed?
No. The Sales Tax Calculator gives an estimate based on the numbers you enter and standard financial formulas — actual rates, fees, taxes, and terms vary by lender, institution, and jurisdiction, and can change over time. This is not financial advice; consult a qualified financial professional for decisions specific to your situation.
Is the Sales Tax Calculator free to use?
Yes, the Sales Tax Calculator is completely free, requires no signup, and runs instantly in your browser.
About the Sales Tax Calculator
The Sales Tax Calculator uses a real, verifiable formula — Tax = amount × tax rate %. Total = amount + tax. — so results are accurate every time, not an approximation.