Sales tax in Suffolk County, New York
The sales tax rate in Suffolk County, New York is 8.75%. That is a 4% state rate plus a 4.375% county rate, and it is the same at every address in the county. That rate was read from New York's own published schedule and checked on September 9, 2026.
What is the sales tax rate in Suffolk County?
| New York state rate | 4% |
|---|---|
| Suffolk County rate | 4.375% |
| Combined rate | 8.75% |
How much sales tax is that on a purchase in Suffolk County?
At 8.75%, a $100 purchase carries $8.75 in sales tax and a $1,000 purchase $87.50. That is general merchandise; New York taxes some categories, often groceries, differently, as the note below explains.
Among New York's 62 counties, Suffolk County's rate ranks 6th highest, level with 2 other counties. See every New York county.
Sales tax in counties next to Suffolk County
Suffolk County borders 7 counties, 6 of them in another state. The lowest rate next door is 6.35% in Greater Bridgeport Planning Region, CT, which is $24.00 less on a $1,000 purchase than Suffolk County's rate.
| County | Combined sales tax |
|---|---|
| Suffolk County, NY (this county) | 8.75% |
| Nassau County, NY | 8.625% |
| Washington County, RI | 7% |
| Greater Bridgeport Planning Region, CT | 6.35% |
| Lower Connecticut River Valley Planning Region, CT | 6.35% |
| South Central Connecticut Planning Region, CT | 6.35% |
| Southeastern Connecticut Planning Region, CT | 6.35% |
| Western Connecticut Planning Region, CT | 6.35% |
Why the rate here is not the whole story
New York's state rate is 4 percent and Suffolk County levies a sales tax of 4.375 percent on top of it, for a combined 8.75 percent at every address in the county once the transportation district surcharge below is added. In New York the state and the counties both levy, and cities may levy as well, but towns and villages may not. No city in Suffolk County imposes a sales tax of its own, so the county line is the tax boundary and one rate applies throughout. A further 0.375 percent is collected throughout the Metropolitan Commuter Transportation District, which covers New York City and the counties of Dutchess, Nassau, Orange, Putnam, Rockland, Suffolk and Westchester. That surcharge is neither a state tax nor a county tax, so it is not carried in either rate field and shows up only in the combined figure. Clothing and footwear sold for less than $110 per item are exempt from the state 4 percent everywhere in New York, but Suffolk County does not provide the matching local exemption, so the local rate still applies to those sales.
How do I find the exact rate for an address in Suffolk County?
Use New York's own address lookup.
Who has to collect sales tax in Suffolk County?
Any seller with a physical presence in New York collects at the rate for the address of the sale; a remote seller does once it passes New York's economic nexus threshold. New York sales tax covers the statewide rules and what is exempt.
Work out your own numbers
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Sales tax calculator
Tax on a specific purchase at this county's rate, and the total you will actually pay.
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Do you have to collect?
Whether your sales into New York cross its economic nexus threshold. A different question from the rate.
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Property tax in Suffolk County
The other local tax: effective rate and median bill for this county.
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Sales tax by county
Every US county, and how New York compares with the rest of the country.
Sources
- Suffolk County rates: New York State Department of Taxation and Finance, Publication 718, New York State Sales and Use Tax Rates by Jurisdiction, revision 2/25, effective March 1, 2025, https://www.tax.ny.gov/pdf/publications/sales/pub718.pdf, confirmed as the current edition on the Department's Sales tax rates by local taxing jurisdiction for current periods page (updated May 12, 2025). County and city components taken from Publication 718-A, Enactment and Effective Dates of Sales and Use Tax Rates, revision 12/25, and cross checked against Publication 718-C, Sales and Use Tax Rates on Clothing and Footwear, revision 2/25.
- Collected and verified September 9, 2026. Confidence: P on the rate components, P on the range (P read on a primary agency page, S strong but indirect, U unverified).