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Nassau County, NY
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Assessment Rolls

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  1. Assessment Home

  2. 2022/2023 Tentative Assessment Rolls

  3. 2021/2022 Final Assessment Rolls

  4. 2020/2021 Final Assessment Rolls

  5. 2019/2020 Final Assessment Rolls

Contact Us

  1. Acting County Assessor

    Ann-Margaret Barriga, Esq.

    Contact Us

    County Assessor's Office


    240 Old Country Road
    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. Assessment Home
  2. News Releases
  3. Exemption Brochures
  4. Exemption Forms
  5. Frequently Asked Questions
  6. Freedom of Information Law & Fees
  7. Glossary of Assessment Terms
  8. Important Dates
  9. Online ASIE Forms
  10. Property Search
  11. Contact
  12. Rules and Regulations (PDF)
  13. Assessment Rolls
    1. Assessment Home
    2. 2022/2023 Tentative Assessment Rolls
    3. 2021/2022 Final Assessment Rolls
    4. 2020/2021 Final Assessment Rolls
    5. 2019/2020 Final Assessment Rolls
  14. 2019/2020 Final Assessment Rolls
  15. FAQs Regarding DISPUTED ASSESSMENT FUND LAW (PDF)
  16. 2020/2021 Final Assessment Rolls
  17. FOIL Requests
  18. askthecountyassessor.com
  19. Class 3 Notice of Tentative Assessed Values
  20. Tax Map Verification Letter
  21. Reassessment Methodologies
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