🧾 Sales Tax Calculator

What is the Sales Tax Calculator?

The Sales Tax Calculator works both directions: it adds tax to a pre-tax price, or strips tax out of a total that already includes it. Enter a price and a rate on the "Add Tax to Price" tab to see the tax amount and final total, or switch to "Reverse (Tax Included)" and enter a receipt total to back out the original pre-tax price and the tax charged.

How to Use It

For a new purchase, enter the pre-tax price and your local tax rate, then calculate to see the tax amount and total. For a receipt or invoice where only the final total is known, use the reverse tab: enter the total and the rate, and the calculator divides by (1 + rate) to recover the pre-tax price.

When to Use It

Use it while shopping to estimate what an item will really cost at checkout, when budgeting for a large purchase across different tax jurisdictions, or when reconciling a receipt or expense report and you need to separate the tax portion from the item price. It's also handy for checking whether a merchant charged the correct rate.

Who Benefits

Shoppers comparing total costs across states with different tax rates, small business owners pricing products and filing sales tax returns, bookkeepers separating tax from revenue on receipts, and freelancers or contractors quoting tax-inclusive versus tax-exclusive prices to clients all get quick, accurate figures without manual math. Because US sales tax varies by state and locality, always confirm the exact rate for your jurisdiction before relying on the result for filing purposes.