Enter a ZIP code and a purchase amount to get the estimated combined state, county, and city sales tax and the total, using each state's 2026 average combined rate.
Estimated average combined rate for the ZIP code's state. Local rates vary within a state - verify the exact rate with your tax authority before filing.
The calculator estimates sales tax on a $100 purchase in ZIP 90210 (California) at $8.85, using the state's average combined rate of 8.85%. It applies each ZIP code's state-level average combined rate, state base rate plus typical county, city, and special-district add-ons, to your purchase amount. That gives a usable estimate for budgeting or a quick receipt check, not an audit-ready figure: two ZIP codes in the same state, or two addresses within the same ZIP code, can carry different local rates. For filing, remitting, or any number that has to be exact, confirm the precise local rate with your state's department of revenue first.
The combined rate above is a state-level average, so it does not know about exemptions. Groceries, prescription drugs, and in some states clothing are taxed at a lower rate or not at all, and this calculator applies the standard rate regardless of what you're buying. It also does not account for shipping and handling, which some states tax and others don't, or for a specific city's transit or improvement-district add-on that can push a real receipt a fraction of a point higher or lower than the average shown here. Treat the number as a fast estimate, not a substitute for the rate printed on your receipt.
| State | Avg. combined rate | State | Avg. combined rate |
|---|---|---|---|
| California | 8.85% | Texas | 8.20% |
| New York | 8.52% | Florida | 7.00% |
| Tennessee | 9.55% | Oregon | 0% |
Full state-by-state figures, including each state's base rate, are on the 2026 State Sales Tax Rates Reference.
Two tools: ZIP code rate lookup and the state-by-state rate reference.
This uses the state average combined rate. Exact local rates vary within each state, sometimes significantly. Use this for purchase estimates; verify before filing.
Alaska, Delaware, Montana, New Hampshire, and Oregon have no statewide sales tax. Note that Alaska allows local municipalities to set their own rates.
The state rate plus average county, city, and special-district taxes for that area.
Your specific city or county rate may be higher or lower than the state average used here.
No. It is an estimate for reference. Confirm the exact rate with your state or local tax authority.