Suffolk County, New York Sales Tax Rate
The combined sales tax rate in Suffolk County, New York in this reference snapshot is 8.75% as of October 1, 2026. That includes the New York state rate of 4%.
This is a historical rate snapshot, not a current address-specific tax determination. Confirm current rates with the state before use; the snapshot source may describe an earlier period.
Combined state (4%) and local sales tax rate from Publication 718.
Sales tax calculator for Suffolk County
Uses the reference rate as of October 1, 2026.
- Sales tax (8.75%)
- $8.75
- Total with tax
- $108.75
How this rate is composed
The New York state sales tax rate is 4%. The combined 8.75% rate for Suffolk County comes from New York State DTF Publication 718 (Pub 718 current edition).
The listed combined rates already include the 0.375% Metropolitan Commuter Transportation District tax where applicable. Do not add it again.
Rates change on official schedules — confirm the current rate and effective date against the source above before filing. Guide reviewed October 20, 2026; rate snapshot dated October 1, 2026.
Managing tax for a business?
A local rate lookup is a starting point. For ongoing sales, choose the calculation engine to determine tax in your system, or compliance software to review a period and prepare returns. For a one-off address estimate, use the free calculator.
Related local sales tax rates in New York
Compare the county and same-type jurisdictions with the closest combined rates.
- Erie County — 8.75%
- Oneida County (Outside The Following) — 8.75%
- Nassau County — 8.625%
- Allegany County — 8.5%
- Putnam County — 8.375%
- Rockland County — 8.375%
- Westchester County (Outside The Following) — 8.375%
- Herkimer County — 8.25%
- Dutchess County — 8.125%
- Orange County — 8.125%
- Albany County — 8%
- Broome County — 8%
Suffolk County sales tax questions
What is the sales tax rate in Suffolk County, New York?
In the 2026-10-01 reference snapshot, the combined sales tax rate is 8.75%. It includes the New York state rate of 4% and applicable local rates.
How much sales tax is charged on a $100 purchase in Suffolk County?
At the 8.75% reference rate as of 2026-10-01, a $100 taxable purchase produces $8.75 in sales tax.
When was the Suffolk County sales tax rate reviewed?
Prophit.ai reviewed this guide on 2026-10-20 against its dated source, New York State DTF Publication 718. The rate snapshot remains dated 2026-10-01; this review does not certify current rates. Confirm the official source before filing because rates can change.