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Nassau County, NY
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  4. Fines & Taxes

Fines & Taxes

Property TaxesProperty Assessments
Assessment Lookup
How to Challenge Your Assessment
Assessment Challenge Forms & Instructions
Assessment Review Calendar
Rules of Procedure
Information for Property Owners

Nassau County Tax Lien Sale
Annual Tax Lien Sale
Public Notice

Property Taxes-Assessment
How is My Property Tax Determined?
Property Classification
Property Tax & Assessment FAQ
Tax Assessment Review Forms

Nassau County Traffic and Parking Violations Agency

Contact Us

  1. Chief Deputy Assessor

    Matthew R. Cronin, IAO

    Contact Us

    County Assessor's Office

    240 Old Country Road 4th Floor
    Mineola, NY 11501
    Ph: 516-571-1500

    Hours

    Monday - Friday
    8 a.m. - 4:30 p.m.

FAQs

  1. Is my property assessment a tax?
  2. What role does the annual assessment of my property play in determining my property taxes?
  3. Won’t my property taxes go down if my assessment goes down?
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  1. Agendas & Minutes
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  3. Applications, Licenses, Forms and Permits
  4. Birth Certificates & Other Records
  5. Boards & Commissions
    1. Assessment Review Commission
    2. Board of Elections
    3. Board of Health
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    5. Deferred Compensation Board
    6. Districting Advisory Commission
      1. Temporary Districting Advisory Commission Home Page
      2. Meeting Information
      3. Public Comment
      4. Proposed Maps
      5. Videos of Past TDAC Meetings
      6. Nassau County Legislature
    7. Film Commission
    8. Fire Commission
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    10. Human Rights Commission
    11. Legislative Committees
    12. Planning Commission
    13. Temporary Districting Advisory Commission
    14. Traffic Safety Board
  6. County Executive
    1. County Executive Home
    2. Executive Orders
    3. NYS Executive Order 203
  7. County Legislature
    1. County Legislature Home
    2. ***NEW*** Redistricting Information
    3. What We Do
    4. Legislators
      1. Contact Form Confirmation Page
      2. District 1 - Kevan Abrahams
        1. Map of District 1
        2. District 1 Event Videos
        3. LD1 Newsletter
      3. District 2 - Siela A. Bynoe
        1. Map of District 2
      4. District 3 - Carrié Solages
        1. District 3 Map
      5. District 4 - Denise Ford
        1. District 4 Map
      6. District 5 - Debra Mulé
      7. District 6 - C. William Gaylor III
        1. Map
      8. District 7 - Howard J. Kopel
        1. District 7 Map
      9. District 8 - John J. Giuffre
        1. District 8 Map
      10. District 9 - Richard J. Nicolello
        1. District 9 Map
      11. District 10 - Mazi Melesa Pilip
        1. District 10 Map
      12. District 11 - Delia DeRiggi-Whitton
        1. District 11 Map
      13. District 12 - James D. Kennedy
        1. District 12 Map
      14. District 13 - Thomas McKevitt
      15. District 14 - Laura Schaefer
        1. District 14 Map
      16. District 15 - John R. Ferretti Jr.
        1. District 15 Map
      17. District 16 - Arnold W. Drucker
      18. District 17 - Rose Marie Walker
        1. District 17 Map
      19. District 18 - Joshua A. Lafazan
        1. DISTRICT 18 - JOSHUA A. LAFAZAN
        2. LD18 Events
        3. Government Internship Opportunities
        4. Thank you
      20. District 19 - Steven D. Rhoads
        1. District 19 Map
    5. History
    6. Budget Process
    7. Local Laws
    8. Neighborhood Information Resources
    9. Who Is My Legislator ?
    10. Committees Assignments
    11. Legislative Meeting Schedule
    12. Meeting Calendars
    13. District Map
    14. Public Notice Index
    15. Public Notice Archive
    16. FOIL Requests
    17. RECENT LEGISLATION
    18. Important COVID-19 Resources
    19. Mental Health Resources for Children and Families
    20. NYS COVID-19 TESTING SITES AND MASS VACCINATION SITES
  8. County Clerk
    1. County Clerk Home
    2. Meet the Clerk
    3. Contact Us
    4. In the News
    5. Hours of Operation
    6. Nassau County Clerk Records Online Search
    7. Property Fraud Alert Sign Up
    8. County Clerk Service Guides
    9. Online Forms
    10. Restrictive Covenants
    11. Set up Pre-Paid Account
    12. Land Records
    13. Notary Public Services
    14. E-Filing New York Unified Court System
    15. Fees
      1. Legal Fees
      2. Notary / Business Fees
      3. Real Estate Fees
    16. Extreme Risk Protection Order (ERPO)
    17. Veteran Services
    18. Passport Services
    19. Mobile Office
    20. Designated Newspapers
    21. NYS Tax Warrant Notice System
    22. SCAR E-Filing Instructions
    23. Supreme Court Decisions
    24. Court File Requisition Form
    25. Annual Reports
    26. FAQs
    27. FOIL Requests
    28. Current Operating Procedures
  9. County Comptroller
    1. Biography
    2. County Comptroller's Office Home
      1. County Checkbook and County Contracts
    3. Open Nassau Transparency Portal
      1. Finance Reports
      2. Open Checkbook
      3. Open Payroll
      4. Open Budget
    4. Field Audits
      1. Field Audits
      2. Field Audits Archive
    5. County Finances
      1. Financial Reports
      2. County Checkbook
      3. County Contracts
      4. Archived County Contracts
    6. Newsroom
      1. Newsroom Home
    7. Community Outreach and Events
    8. Employee & Retiree Health Benefits
      1. Health Benefits Home
      2. Retirees
        1. Open Enrollment for Retirees
        2. Forms for Retirees
        3. Rate Sheet for Retirees
      3. Active Employees
        1. Open Enrollment for Active Employees
        2. Forms for Active Employees
        3. Rate Sheet for Active Employees
      4. Open Enrollment
      5. Recent Updates
      6. Forms
        1. Active Employees Forms
        2. Retiree and All Other Plan Enrollees Forms
      7. FAQ
        1. New Employees
        2. Covering Your Domestic Partner
        3. Health Insurance Buy-Back Program
        4. Continuing Health Benefits
        5. Continuation of Benefits as a Vestee
        6. Dental Insurance - HealthPlex
        7. Covering Your Spouse
        8. Coverage Dependents - Empire Plan - NYSHIP
        9. Smart Savings
        10. COBRA
        11. Survivors of Deceased County Employess & Retirees
        12. Vision Care Benefits - Davis Vision
        13. Covering Your Children
        14. Coverage for Dependents - HMO's
        15. Temporarily Off Payroll
        16. Benefits Retirement for Employess Over 55
        17. Retirees
        18. Providing Supporting Documentation
        19. Flexible Spending Account
      8. Our Providers
      9. Contact Us
    9. Living Wage
      1. Covered Employers
      2. Living Wage Advisory Committee
      3. Living Wage Complaint Form
      4. Living Wage Compliance & Annual Reports
    10. Employment Opportunities
    11. Vendor Claims
      1. Resources for Nonprofits
        1. County Guides and Forms
        2. Federal & State Regulations and Industry Resources
      2. Tax & Remittance FAQs
      3. Vendor Claim Forms
      4. Vendor Resources
      5. Vendor Portal
    12. Fact Sheets and Information
    13. Contact Us
    14. FOIL Requests
  10. County Services
    1. For Seniors
      1. Entitlements, Assistance & Discounts
      2. Recreation, Clubs & centers
    2. For Veterans
      1. Veterans Services & Facilities
        1. Veteran's Counseling
        2. Veterans Services
      2. County Clerk Veterans Services
      3. Important Phone Numbers
      4. Veterans' Real Property Tax Exemptions
      5. Federal Benefits for Veterans
      6. State Benefits for Veterans
      7. Telephone Service Discount
    3. For Disabled Residents
    4. For Minority Residents
      1. Human Rights Commission
      2. Job Development Center
    5. For Property Owners
      1. Property Assessment & Appeal
      2. Property Tax Exemptions
      3. Building & Improving a House
      4. Property Taxes
    6. For Children & Youth
      1. Children's Advocacy & Support
      2. Children's Protective Services
      3. Children & Youth
    7. For Consumers
      1. Home Improvement Licensing
        1. Who Must Be Licensed?
        2. Home Improvement Application
        3. Insurance Requirements
      2. Consumer Checklist for Home Improvement Contract
  11. COVID-19 INFORMATION
    1. COVID-19 Home
    2. COVID-19 Cases In Nassau County (MAP)
    3. Report A Complaint
    4. Downloads & Documents
    5. Boost Nassau Recovery Resources
      1. HAP App FAQ
    6. COVID-19 Vaccine Information
    7. COVID-19 TESTING
    8. COVID-19 Data & Resources
    9. Nassau School Recovery Resource Portal
    10. Isolation and Exposure Information
  12. District Attorney
    1. District Attorney Home
  13. Education
    1. Colleges, Universities and Other Schools
    2. Training and Education
  14. Elected Officials
  15. Emergency Services
    1. Emergency Services & Homeland Security
    2. Emergency Health
  16. Employment
  17. Facts, Stats & Maps
    1. History of Nassau County
    2. History of Nassau County's Seal
    3. Nassau County Seal Images
    4. IT PMO Documents
  18. Feedback & Complaints
  19. Getting Involved
  20. Health
  21. Housing Assistance
    1. HEALTH DEPARTMENT PROGRAMS AND TELEPHONE NUMBERS
  22. Law Enforcement
    1. Nassau County Law Enforcement
    2. New York State Criminal Justice Reform
    3. Courts & Justice
  23. Laws, Regulations & Codes
  24. Moving to Nassau County
    1. Cities, Towns and Villages A-Z
    2. Cities, Towns & Villages
  25. Policies and Documents
  26. Temporary Districting Advisory Commission
  27. Transportation
    1. Buses and Trains
    2. Taxi Service
    3. Nassau Roads & Traffic
  28. Vendor Portal
    1. Vendor Accounts and Claims
    2. Chief Procurement and Compliance Officer
    3. Department of Shared Services Office of Purchasing and Solicitation Bid Boards
    4. Vendor Diversity
    5. Public Entities
  29. Voting & Elections
  30. Vendor Accounts and Claims
    1. New Vendor Portal Registration
    2. New Principal Vendor Portal Registration
    3. Vendor Disclosures & Claims
    4. FAQ
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