Free tool
Sales tax calculator
Add sales tax to a price, or take it back out of a total. You enter the rate that applies where you sell.
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Your numbers
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How it works
How it works
To add tax, multiply the price by one plus the rate. To remove it, divide the total by one plus the rate. The tax is the difference. The calculator does not look up rates, so use the rate your state or local tax agency gives you.
FAQ
About this calculator
How do I add sales tax to a price?
Multiply the price by one plus the rate as a decimal. At 6.625%, a $100 item is $100 times 1.06625, or $106.63.
How do I take sales tax out of a total?
Divide the total by one plus the rate. A $106.63 total at 6.625% is $106.63 divided by 1.06625, or $100.00 before tax.
Where do I find my rate?
Your state or local tax agency publishes the rate for each location. The calculator uses whatever rate you enter.
What is taxable?
It depends on what you sell and where. Some items and services are exempt. Confirm with your state tax agency or a tax preparer.
Is anything saved?
No. The math runs in your browser and nothing you enter is sent to us.
Learn how sales tax payable works in your books and the steps to add or remove tax. More free tools: Retirement Monte Carlo Python script, MCC Automation Suite, Tallyfinch downloadable bookkeeping software, or see all free tools.
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Books you keep on your own computer
Tallyfinch does invoices, bills, bank import, reconciliation and the main reports, in a file you own. $99 once, then $5 a month for updates; the app keeps working if you stop the plan. It does not do payroll or sales tax filing. The free download records up to 60 entries.
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