Sales Tax Calculator

Select your state and enter a purchase amount to instantly calculate the sales tax owed and total cost — using current statewide base rates for all 50 US states.

Purchase Details

Purchase Amount

State

Tax Breakdown

Sales Tax Amount

—

state tax

Total Purchase Cost

—

price + tax

State Tax Rate

—

statewide base rate

Original Price

—

before tax

Receipt Summary

⚠ This calculator uses the statewide base sales tax rate only. Local city, county, and special district taxes may add 0–5% on top of this figure and are not included. Always verify the exact local rate for your specific transaction.

All 50 States — Tax Rate Reference

Statewide Base Sales Tax Rates

State	Base Tax Rate

How Sales Tax Is Calculated

Multiply your purchase amount by the state tax rate. A $200 purchase in California (7.25%) results in $14.50 in state sales tax, bringing the total to $214.50 — before any local additions.

Tax = Purchase × (Rate ÷ 100)

States With No Sales Tax

Five states charge no statewide sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon. However, Alaska allows local jurisdictions to levy their own taxes — so "no state tax" doesn't always mean zero tax at the register.

0% State Rate: AK, DE, MT, NH, OR

Local Taxes on Top

Most states allow cities and counties to add local sales taxes on top of the state base rate. New York City, for example, adds a combined local rate that brings the total to 8.875%. Always check local rates for exact quotes.

Total Rate = State Rate + Local Rate

When Businesses Must Collect Tax

If you have nexus — a significant presence — in a state, you're generally required to collect and remit sales tax for sales into that state. Since South Dakota v. Wayfair (2018), nexus can be established by sales volume alone, even without a physical presence.

Nexus = Physical or Economic Presence

Sales tax tips for small business owners

Register in every state where you have nexus. Selling above a threshold (often $100,000 or 200 transactions per year) in a state creates economic nexus and requires you to collect and remit their sales tax.
Not all products are taxable. Many states exempt groceries, prescription drugs, and clothing from sales tax. Know your product category before assuming you need to collect.
Use this calculator for estimates, not for compliance. Actual tax due includes local rates and may vary by product type. Use this as a planning tool and consult your accountant for tax filings.
Sales tax is not your money. Tax collected from customers belongs to the state. Track it separately and remit on schedule to avoid penalties and interest.
Automate if you sell in multiple states. Services like TaxJar or Avalara automatically calculate, collect, and file sales tax across states — essential if you're selling online at scale.

Frequently Asked Questions

No — this calculator shows the statewide base rate only. Most states allow cities and counties to add local taxes on top, which can range from 0.5% to over 5%. For precise calculations, look up the combined rate for your specific city and county at your state's department of revenue website.

Five states have a 0% statewide sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon. Note that Alaska permits local governments to levy their own sales taxes, so some Alaska locations do have a local tax even though the state rate is zero. The other four states have neither a state nor local general sales tax.

It depends on the state and the type of service. Most states do not tax pure services (consulting, legal, accounting), but some states do tax certain services like digital services, software, or repair work. If you sell physical products alongside services, the product portion is typically taxable. Check your state's specific rules or consult a tax professional.

Since the Supreme Court's 2018 ruling in South Dakota v. Wayfair, states can require out-of-state sellers to collect sales tax if they exceed certain sales thresholds — typically $100,000 in sales or 200 transactions per year in that state. This means an online seller based in Texas may need to collect and remit sales tax for customers in California, New York, and dozens of other states.

Statewide base rates change infrequently — typically only when state legislation modifies the tax code. Local rates change more often. The rates in this calculator reflect current statewide base rates but should be verified against your state's official revenue department for the most up-to-date figures before making business decisions.