Household income does not directly reduce your Nassau County property tax bill

Your property tax in Nassau County is calculated from the assessed value of your home, not from how much money you earn. The county assessor looks at your property — its size, location, condition, and recent sales of similar homes — to set an assessed value. That value, multiplied by the tax rate, produces your bill. Your household income (HHI) does not appear in that calculation.

However, income does matter for certain tax breaks that can lower what you owe. These are separate programs with their own rules and income limits. If you fall below those limits, you may reduce your tax through a property tax exemption or credit. If you are above them, your income has no effect on your bill at all.

Key Takeaways

  • Property tax is based on assessed property value, not household income, so earning more or less does not change your base tax bill.
  • Nassau County offers income-based exemptions and credits — such as the STAR program and senior exemptions — that can lower taxes if you meet income thresholds.
  • You must apply separately for these programs; they do not happen automatically even if you meet the income limit.
  • Income limits vary by program and change yearly, so you may become ineligible in a year your income rises, or newly may be able to access if it falls.

Income-based property tax programs in Nassau County

Nassau County and New York State offer several programs where income determines whether you can receive a tax reduction. The most common is the School Tax Relief (STAR) program, which exempts a portion of your home's assessed value from school tax if your income is below a set limit. For 2024, the basic STAR income limit is $250,000 for most homeowners; the enhanced STAR limit (for seniors) is $92,000. These limits change annually.

Senior homeowners (age 65 and older) may also may have access to for a senior exemption that reduces assessed value. Income limits for senior exemptions in Nassau County vary by municipality but typically range from $29,000 to $37,000 annually, depending on your town or village. A homeowner earning $38,000 would not may have access to; one earning $28,000 might.

Veterans with service-connected disabilities may receive a veterans exemption, which also has income limits that vary by disability rating and municipality. The county assessor's office can tell you the exact limit for your town.

How to learn about your income qualifies

Contact your town or village assessor's office directly — not the county assessor. Each municipality in Nassau County sets its own exemption policies within state law, and income thresholds can differ. The assessor's office has the current year's income limits and can tell you whether you meet them based on your household income.

You will need to provide proof of income, typically your most recent federal tax return or a recent pay stub. The assessor will compare your household income to the program's limit for that year. If you are below the limit, you may then apply for the exemption or credit. If you are above it, you cannot receive that particular benefit, regardless of other circumstances.

What happens if your income changes

If your income rises above a program's limit in a given year, you lose that exemption or credit for that tax year. Your property tax bill will increase because the exemption no longer applies. If your income falls below the limit in a later year, you can reapply and regain the benefit.

This means a household earning $90,000 might receive enhanced STAR (senior) benefits one year, then lose them the next year if income rises to $95,000. Conversely, a household that earned too much to may have access to may become may be able to access again if income drops due to retirement or job loss.

The difference between exemptions and credits

A property tax exemption removes a portion of your home's assessed value from taxation. If your home is assessed at $300,000 and you receive a $50,000 exemption, you pay tax only on $250,000. The tax savings depend on your local tax rate.

A property tax credit is a direct reduction in the tax you owe, regardless of assessed value. If you owe $5,000 and receive a $500 credit, you pay $4,500. Credits are less common in Nassau County than exemptions, but some programs offer them to specific groups like seniors or disabled veterans.

Income limits are not permanent

New York State adjusts STAR income limits yearly to account for inflation. A limit that was $250,000 in 2024 may be $255,000 in 2025. Your assessor's office publishes updated limits each year, usually in late fall or early winter. If you were denied in one year, check the new limit before assuming you still do not may have access to.

Senior and veteran exemption limits also change, though less frequently. Some municipalities adjust them annually; others hold them steady for several years. Your assessor can tell you whether limits have changed since you last applied.

How to apply for an income-based exemption

Applications are filed with your town or village assessor, not with the county or state. Most assessors accept applications during a specific window — often January through March, though this varies by municipality. Some allow year-round applications, but processing may be slower outside the main filing period.

You will need to submit a completed application form (provided by the assessor), proof of income (tax return or pay stub), and proof of ownership (deed or tax bill). For senior exemptions, you may also need to prove your age. For veteran exemptions, you will need discharge papers or a veterans identification card.

Processing typically takes four to eight weeks. If approved, the exemption takes effect on the next tax bill, which may not arrive for several months. If denied, the assessor will explain why — usually that your income exceeded the limit or you did not provide required documents.

Frequently Asked Questions

If I earn $250,001, can I still get STAR?

No. STAR has a hard income limit; earning even $1 over the threshold disqualifies you for that tax year. However, limits increase yearly for inflation, so you may become may be able to access again in a future year if your income does not rise further.

Does my spouse's income count toward the household income limit?

Yes. Household income includes all income earned by you and your spouse if you file taxes jointly or live together. If you are married and file separately, only your individual income may count — ask your assessor, as rules vary by program and municipality.

Can I appeal if I was denied an exemption because my income was too high?

You cannot appeal an income limit itself — it is set by state law or local law. However, you can appeal if you believe the assessor miscalculated your income or if you provided incorrect documentation. File an appeal with your town assessor within 30 days of the denial letter.

What if I retired mid-year and my income dropped?

Use your most recent full-year tax return to prove income. If you retired in June 2024, use your 2023 tax return for a 2025 application. If your 2024 income will be significantly lower, you may reapply in 2026 using your 2024 return, which will show the lower amount.

Do I have to reapply every year?

Rules vary by municipality and program. Some exemptions renew automatically if your income stays below the limit; others require you to reapply annually. Ask your assessor whether your exemption is automatic or requires yearly renewal.