Look up combined state, county, and city sales tax rates for any US ZIP code with nexus indicator and exemption notes.
This tool turns a US ZIP code into the tax rate that actually applies there: the state base plus every county, city, and special district levy layered over that location, returned as one combined percentage with a nexus indicator and exemption notes. It resolves the ZIP to its taxing jurisdictions and sums the rates in effect for each on the lookup date. The thing users most often get wrong is assuming the ZIP is the tax area: one ZIP can span two rate zones, and a few states have no local rate at all.
A concrete input and expected output from the current implementation.
Input
10001
Expected output
Combined rate: 8.875% - New York State 4.000%, New York City 4.500%, MCTD surcharge 0.375%. Exemption note: most clothing and footwear under $110 per item is exempt in New York. Nexus: New York imposes economic nexus on remote sellers above its threshold.
ZIP 10001 lies entirely within Manhattan, so the rate is the sum of New York's 4% state base, the city's 4.5% local tax, and the 0.375% Metropolitan Commuter Transportation District surcharge; no county rate applies inside New York City.
The total is a sum: the state's base rate plus the county, city, and special district taxes whose boundaries cover the ZIP. Local rates have their own effective dates, so the tool applies only the components in force on the lookup date. A transit tax that expires mid-year lowers the combined rate without touching the state base.
The indicator marks states whose economic nexus laws require remote sellers above a certain volume of in-state sales to register and collect tax. It answers whether such a rule exists, not whether your business owes tax there. A seller below the threshold, or whose activity falls outside the state's definition, is not obligated, and thresholds vary by state.
Use tax is the sales tax's counterpart: it applies when you buy from a seller that does not collect your state's tax, typically an out-of-state online or mail-order purchase, and most states impose it at the same combined rate as sales tax. Because it is self-assessed, you compute what you owe using the rate for the ZIP where the item is used.
Usually, but not always. Most ZIPs sit entirely in one rate area, yet some cover two cities or a city plus unincorporated county territory, and new ZIPs can take time to appear in rate databases. If the order is large or the address sits near a boundary, confirm against the state tax authority's own address-based lookup.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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