Calculate US sales tax for any state. Add tax to a price or remove tax from a total. Includes 2026 state sales tax rates and average combined rates for all 50 US states. This free sales tax calculator helps with budgeting, shopping, and business tax estimates.
Type the purchase amount in the Amount field. This can be the price before tax (Add Tax mode) or the total including tax (Remove Tax mode).
Search and select a US state to auto-fill its sales tax rate, or enter a custom rate manually. Use the Show State Rates button to browse all 50 states.
Select Add Tax to compute the total with tax, or Remove Tax to extract the tax from a total. The results show the original amount, tax amount, and final total.
Q: Which states have the highest sales tax?
A: Tennessee (9.55%), Louisiana (9.56%), and Arkansas (9.47%) have the highest average combined state and local sales tax rates.
Q: How do I remove tax from a total?
A: Select Remove Tax mode and enter the total amount including tax. The calculator will extract the tax and show the net price.
Q: Are local sales taxes included?
A: The Average Combined rate includes estimated local taxes. State Rate shows only the state-level rate. Use Custom Rate for precise local rates.