Sales Tax Calculator
Add or remove sales tax.
Add or remove sales tax.
This is a simplified estimate for general information only — not financial, tax, or legal advice. Real figures vary by lender, rate, jurisdiction and your own circumstances, so confirm with a qualified professional before acting.
How to use Sales Tax Calculator
- Choose to add tax or remove tax from a total
- Enter the amount and the tax rate
- Read the tax amount alongside the resulting figure
About Sales Tax Calculator
The Sales Tax Calculator works in two directions. Choose "Add tax to amount" to apply a tax rate to a pre-tax price and see the total, or "Remove tax from total" to back out the tax already baked into a receipt total and reveal the net price. It updates live as you type and always shows the tax amount alongside the other figure, so you can see exactly how the number was built.
Because you enter the rate yourself, it works for any state, county, or city. If you're figuring New York or NYC sales tax, type the combined rate (roughly 8.875% inside New York City). For California, start from the 7.25% statewide base and add your local district tax; for Missouri, start from the 4.225% state rate and add your county and city portions. Enter the percent, enter the amount, and the tool multiplies to add tax or divides by (1 + rate) to strip it out.
It handles cents and large values, formatting results as US dollars with two decimals and thousands separators so they're easy to read. It's completely free with no sign-up and no usage limits, and everything runs entirely in your browser. The amounts and tax rates you enter are never uploaded to a server, so you can price products, check receipts, and reconcile invoices privately from any device.
Frequently asked questions
- Is the Sales Tax Calculator free to use?
- Yes, it is completely free with no account, sign-up, or usage limits. Use it as often as you like for adding or removing sales tax.
- How do I figure sales tax on a purchase?
- Take the pre-tax price and multiply it by the tax rate written as a decimal, for example 0.0825 for an 8.25% rate. That gives the tax amount, which you add to the price for the total. This calculator does that math for you the moment you type the numbers in.
- How do I add sales tax to a price?
- Select "Add tax to amount," then enter the pre-tax amount and your tax rate as a percent. The tool multiplies the amount by the rate to get the tax, then adds it to show the total with tax.
- How do I remove sales tax from a total?
- Select "Remove tax from total" and enter the tax-inclusive total plus the rate. The tool divides the total by (1 + rate) to find the net price before tax, then shows the tax portion that was included. This is handy for backing tax out of a receipt or an all-inclusive price.
- How do I calculate New York or NYC sales tax?
- Enter your amount and type your combined New York rate as the percent. New York State's base rate is 4%, and within New York City the combined state and local rate is about 8.875%. Rates differ by county, so confirm the current figure for your location before relying on it.
- How do I calculate California sales tax?
- Use California's 7.25% statewide base rate as a starting point and add any local district taxes that apply in your city or county, then enter that combined percent. Many California cities are noticeably higher than 7.25%, so check your local rate.
- How do I calculate Missouri sales tax?
- Missouri's state sales tax rate is 4.225%, and counties and cities add their own amounts on top. Add those local portions to the state rate, enter the combined percent, and the calculator returns the tax and total.
- What tax rate should I enter?
- Enter your combined state and local sales tax rate as a percentage, for example 8.25 for 8.25%. Sales tax rates vary by state, county, and city, so check your jurisdiction's current rate before you calculate.
- Does it look up my sales tax rate by state or ZIP code?
- No, it does not automatically find rates by address or ZIP. You enter the rate yourself, which keeps it fast and works for any location worldwide. Look up your combined rate once from your state or city tax authority, then reuse it here.
- How does this compare to the Avalara sales tax calculator?
- Avalara's tool is built around looking up the correct rate for a specific address. This calculator instead assumes you already know your rate and focuses on the math, letting you both add tax and remove it from a total. It's free, needs no sign-up, and runs entirely in your browser.
- Does it handle decimals and large amounts?
- Yes. You can enter cents and large values, and results are formatted as US dollars with two decimal places and thousands separators for easy reading.
- Is my data uploaded or stored anywhere?
- No. All calculations happen locally in your browser using JavaScript. The amounts and tax rates you enter never leave your device and are not sent to any server.