Sales Tax Calculator
Add sales tax to a price, or work backwards from a total that already includes tax.
When to use this calculator
Use this calculator to find the real price of something after tax, or to find the pre-tax price from a receipt total. Sales tax rates vary by state, county and city, so you enter the rate that applies where you shop.
Example totals
How this calculator works
Sales tax equals the price before tax times the tax rate. To work backwards from a total, we divide by one plus the rate. Your real rate is the state rate plus any city or county rate, so use the full rate shown on your receipt.
Step-by-step example
Using these inputs: What do you know?: Price before tax; Amount ($): 100; Sales tax rate (%): 7.
On a $100 item with a 7% sales tax rate, the tax is $7.00 and the total is $107.00.
Tips for a better estimate
- Look up your combined state and local rate. The state rate alone can be too low.
- Some items such as groceries or clothing may be taxed at a different rate or not at all in some states.
- For big purchases, check whether the tax applies to trade-ins and fees.
FAQ
What is my sales tax rate?
It is the state rate plus local rates. Check your state or city website, or a past receipt.
Are all items taxed?
Not always. Groceries, clothing and some other items are exempt in some states.
Which states have no sales tax?
Delaware, Montana, New Hampshire and Oregon have no state sales tax, though local taxes may apply in some places.
Which states have no sales tax?
Delaware, Montana, New Hampshire and Oregon have no statewide sales tax. Alaska has none at the state level but allows local taxes.
How do I remove sales tax from a total?
Divide the total by one plus the tax rate. For example, $107 divided by 1.07 is $100.
Is sales tax the same as VAT?
No. Sales tax is charged once, at the final sale. VAT is charged at each stage of production.
Rates and limits last updated: October 2026. This is an estimate for general information only, not financial, tax or legal advice.