Nassau County Tax Department

Search for Nassau County NY tax departments. A tax department search can provide information on federal taxes, state taxes, and local taxes, including property taxes, property tax assessments, tax deadlines, tax payment plans, tax refunds, unpaid taxes, delinquent taxes, and tax liens.


A Treasurer and Tax Collector in Nassau County New York is responsible for collecting local taxes and disbursing these funds, including property taxes. Nassau County Treasurers and Tax Collectors maintain a number of tax-related records, including property tax assessments, parcel numbers, local tax assessments, appraisal values, and information on individuals with delinquent taxes. These Nassau County tax departments may provide information on tax payment plans, tax refunds, tax liens, and foreclosures. Some offices also handle business taxes and licensing as well as vehicle taxes and registration. Treasurers and Tax Collectors provide a range of Nassau County tax information and services, which are accessible through their website.

Brookville Village Treasurer Glen Head NY 18 Horse Hill Road 11545 516-626-1792

Freeport Treasurer Freeport NY 46 North Ocean Avenue 11520 516-377-2261

Hempstead Village Treasurer Hempstead NY 99 Nichols Court 11550 516-489-3400

Nassau County Treasurer's Office Mineola NY 1 West Street 11501 516-571-2090


A Clerk in Nassau County New York operates at the county or local level of government to maintain public records for their jurisdiction. In addition to keeping vital records like marriage licenses and birth certificates, Nassau County Clerk's Offices also have a number of tax-related records and provide services related to taxes. This includes records on property tax assessments, paid and unpaid taxes, delinquent taxes, and tax liens. Nassau County Clerk tax departments may also provide information on tax payment plans, tax refunds, and local foreclosures. In addition, some Clerk's Offices handle Nassau County business taxes and licenses as well as vehicle taxes and registration. Clerks provide access to many of their services and records online.

Brookville Clerk East Norwich NY 104 Susan Cove 11732 516-922-8198

East Rockaway Clerk East Rockaway NY 376 Atlantic Avenue 11518 516-887-6312

Glen Cove Clerk Glen Cove NY 9 Glen Street 11542 516-676-2000

Hempstead Town Clerk Hempstead NY 1 Washington Street 11550 516-489-5000

Kensington Village Clerk Great Neck NY 2 Nassau Drive 11021 516-482-4409

Malverne Clerk Malverne NY 99 Church Street 11565 516-599-0722

Matinecock Village Clerk Locust Valley NY 63 Midway Avenue 11560 516-671-7790

Nassau County Clerk Westbury NY 1200 Old Country Road 11590 516-493-3900

Nassau County Clerk Mineola NY 1550 Franklin Avenue 11501 516-571-4010

New Hyde Park Clerk New Hyde Park NY 1420 Jericho Turnpike 11040 516-354-0022

North Hempstead Town Clerk Manhasset NY 200 Plandome Road 11030 516-869-7650

North Hills Clerk Roslyn NY 1 Shelter Rock Road 11576 516-365-8857

Old Westbury Village Clerk Old Westbury NY 1 Store Hill Road 11568 516-626-0800

Oyster Bay Town Clerk Massapequa NY 977 Hicksville Road 11758 516-797-7960

Oyster Bay Town Clerk Oyster Bay NY 54 Audrey Avenue 11771 516-624-6320

Plandome Village Clerk Manhasset NY 65 South Drive 11030 516-627-1748

Valley Stream Clerk Valley Stream NY 123 South Central Avenue 11580 516-825-4200

Westbury Village Clerk Westbury NY 235 Lincoln Place 11590 516-334-1700


An Assessor in Nassau County New York works for the county or local government to determine the appraisal value of taxable property within its jurisdiction. This information is used to assess the taxes, including property taxes, owed by residents. Nassau County Assessors provide a number of tax-related services, including parcel searches, tax payment plans, tax refunds, and liens. The Nassau County tax department may also keep records on foreclosures, properties with delinquent taxes, and tax payments, as well as property tax assessments and property tax payment schedules. Assessors provide access to many of their services and records online.

Freeport Assessor Freeport NY 46 North Ocean Avenue 11520 516-377-2256

Nassau County Assessor's Office Mineola NY 240 Old Country Road 11501 516-571-1500


An IRS Office in Nassau County New York is a taxpayer assistance center run by the Internal Revenue Service. Nassau County IRS Office tax departments provide a range of tax-related services, including basic tax law assistance, processing applications for individual tax identification numbers, and other individualized tax services. They can also accept tax returns and tax payments, help individuals set up a payment plan, and resolve IRS problems. IRS Offices also provide specialized services, such as assistance with Affordable Care Act tax provisions and heavy highway vehicle use tax returns. Some matters require an appointment, which can be made on the Nassau County IRS Office website.

Garden City New York IRS Office Garden City NY 107 Charles Lindbergh Boulevard 11530 516-683-5169


A Finance Department in Nassau County New York administers finances for its jurisdiction, often at the state or local level. As part of their responsibilities, Finance Departments provide information about New York State and local Nassau County taxes, including property taxes, and maintain tax-related records. These tax department records include Nassau County property appraisal values, paid and unpaid property taxes, tax liens, and foreclosures. Finance Departments may also provide services such as tax payment plans, tax refunds, or help with other taxes such as business taxes. Nassau County Finance Departments provide online access to many of their services and tax records on their websites.

Nassau County Finance Department Mineola NY 170 Old Country Road 11501 516-248-2828