Suffolk County Tax Records

Find Suffolk County NY tax records. Search tax records available from your Assessor, Clerk, IRS Office, Recorder of Deeds, Treasurer, Tax Collector, Town and City Hall.


Suffolk County Assessors are responsible for determining the value of property in order to assess property taxes in Suffolk County, New York. The Assessor’s Office is an important source for tax records. The Assessor’s Office maintains current data on the value of all property in the jurisdiction, including ownership information, maps of property lines, and Suffolk County property tax records. Many Assessor’s Offices also provide online access to property assessments and tax records.

East Hampton Town Assessor East Hampton NY 300 Pantigo Place 11937 631-324-4187

Islip Assessor Islip NY 40 Nassau Avenue 11751 631-224-5585

Patchogue Assessor Patchogue NY 14 Baker Street 11772 631-475-2561

Shelter Island Assessor Shelter Island NY 38 North Ferry Road 11964 631-749-1080

Smithtown Town Assessor Smithtown NY 40 Maple Avenue 11787 631-360-7560


Suffolk County Clerks file important documents and preserve records in order to maintain a public archive Suffolk County, New York. The Clerk’s Office also maintains tax records. The Clerk’s Office contains records on real estate excise taxes, property transactions, mortgages, liens, and tax records. The Clerk’s Office may also have court records that include Suffolk County tax information. Many Clerk’s Offices provide online databases to access tax records.

Amityville Clerk Amityville NY 21 Ireland Place 11701 631-691-3303

Bellport Village Clerk Bellport NY 29 Bellport Lane 11713 631-286-0327

Brightwaters Village Clerk Brightwaters NY 40 Seneca Drive 11718 631-665-1280

East Hampton Town Clerk Montauk NY THE Plz 11954 631-668-5081

Head Of The Harbor Village Clerk St. James NY 500 New York 25A 11780 631-584-5550

Jo Ann Raia Town Clerk Huntington NY 100 Main Street 11743 631-673-9477

Lindenhurst Clerk Lindenhurst NY 430 South Wellwood Avenue 11757 631-957-7501

Lloyd Harbor Village Clerk Lloyd Harbor NY 32 Middle Hollow Road 11743 631-549-8893

North Haven Village Clerk Sag Harbor NY 335 Ferry Road 11963 631-725-1378

Northport Village Clerk Northport NY 224 Main Street 11768 631-261-7502

Quogue Village Clerk Westhampton Beach NY 172 Dune Road 11978 631-653-4498

Southampton Town Clerk Hampton Bays NY 25 Ponquogue Avenue 11946 631-723-3820

Southampton Village Clerk Southampton NY 23 Main Street 11968 631-283-0247

Southold Town Clerk Southold NY 53095 Middle Road 11971 631-765-1801

Suffolk County Clerk Smithtown NY 725 Veterans Memorial Highway 11787 631-853-4074

Suffolk County Clerk Riverhead NY 310 Center Drive South 11901 631-852-2041

Suffolk County Clerk Central Islip NY 400 Carleton Avenue 11722 631-853-4312


Suffolk County IRS Offices are local branches of the federal Internal Revenue Service, and it is a valuable source for tax records in Suffolk County, New York. An IRS Office can provide a copy of your recent tax returns, transcripts of tax returns, and tax records from open case files. You can also access Suffolk County Tax Court records, either at an IRS Office or online. Certain tax records are private, or may require a Freedom of Information Act (FOIA) request.

Hauppauge New York IRS Office Hauppauge NY 1180 Veterans Memorial Highway 11788 631-851-4726

Riverhead New York IRS Office Riverhead NY 518 East Main Street 11901 631-851-4726


Suffolk County Recorders of Deeds maintain multiple kinds of records, particularly documents related to property and property taxes, and these records are available to the public in Suffolk County, New York. The Recorder of Deeds can be an important source for tax records. The Recorder of Deeds keeps documents on land transactions, including deeds, mortgages, easements, Suffolk County tax liens, and other tax records. Many Recorders of Deeds provide online databases to access tax record information.

Suffolk County Recorder of Deeds Riverhead NY 310 Center Drive South 11901 631-852-2000


Suffolk County Treasurer and Tax Collector Offices are responsible for the collection of property tax revenue, making the Treasurer and Tax Collector an important source for tax records in Suffolk County, New York. The Office of the Treasurer and Tax Collector maintains current Suffolk County property tax information as well as records on defaults on taxes. Many Treasurers and Tax Collectors provide online databases to access tax record information.

Brookhaven Town Hall Farmingville NY 1 Independence Hill 11738 631-451-7087

East Hampton Town hall East Hampton NY 300 Pantigo Place 11937

Huntington Town Hall Huntington NY 100 Main Street 11743 631-351-3014

Islip Town Hall Islip NY 655 Main Street 11751 631-224-5691

Riverhead Town Hall Riverhead NY 210 Howell Avenue 11901 631-727-3200

Shelter Island Town Hall Shelter Island NY 38 North Ferry Road 11964 631-749-0291

Shoreham Town Hall Shoreham NY 80 Woodville Road 11786 631-821-0680

Smithtown Town Hall Smithtown NY 99 West Main Street 11787 631-360-7512

Southampton Town Hall Southampton NY 116 Hampton Road 11968 631-283-6000


Suffolk County Town Halls and City Halls are the chief administrative offices that run municipalities in Suffolk County, New York. They often maintain records related to the locality, making them a valuable resource for locating Suffolk County tax records. Town and City Halls keep documents on property taxes, property value assessments, and other local tax records. Many Town and City Halls provide online access to tax records.

Asharoken Village Treasurer Northport NY 1 Asharoken Avenue 11768 631-261-7098

Babylon Village Treasurer Babylon NY 153 West Main Street 11702 631-587-6270

East Hampton Treasurer East Hampton NY 86 Main Street 11937 631-324-4150

Sag Harbor Village Treasurer Sag Harbor NY 55 Main Street 11963 631-725-0222

Suffolk County Treasurer Hauppauge NY 100 Veterans Memorial Highway 11788 631-852-1500