Home
/US Property Taxes
/New York
/Nassau County
/Old Bethpage

Old Bethpage, Nassau County, New York Property Taxes

$774 avg. annual savings
No Upfront Costs
You only pay if we save

Property Taxes in Old Bethpage, New York

  • Median Old Bethpage, New York effective property tax rate: 0.86%, significantly lower than the national median of 1.02%, and lower than the New York state median of 1.90%.

  • Median Old Bethpage, New York home value: $600,000

  • Median annual Old Bethpage, New York tax bill: $5,091, higher than the national median property tax bill of $2,400.

How are property taxes in Nassau calculated?

Property taxes in Old Bethpage, New York are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Old Bethpage's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Old Bethpage, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Old Bethpage, Nassau County, New York Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.86%

Estimate Property Tax Bill

$5,160

$4,788

SAVE WITH OWNWELL

$774

Average Annual Tax Savings

How Does the Old Bethpage Property Tax Calculator Work?

Use this Old Bethpage property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Old Bethpage's median effective tax rate of 0.86% — based on actual property records in Nassau County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment system uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Old Bethpage's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Old Bethpage: rates are 0.86% in 11804, primarily due to differences in school district levies and local assessment districts.

If your estimate is higher than expected, Ownwell can appeal your Old Bethpage assessment — you only pay if we save you money.

About Old Bethpage Property Taxes

About Property Taxes in Old Bethpage, Nassau, New York

Old Bethpage’s median effective property tax rate of 0.86% is lower than the New York state median of 1.90% and lower than the national median of 1.02%. This rate reflects the Nassau County base levy combined with local school district levies and special district levies that vary by subdivision throughout the city.

Property tax rates are not uniform across Old Bethpage. Homeowners in the 11804 ZIP code carry a median effective rate of 0.86%, while those in the same ZIP code pay 0.86%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Nassau County. Understanding which part of Old Bethpage you live in can make a meaningful difference to your annual tax bill.

Old Bethpage homeowners who believe their assessed value is too high can file a formal appeal with the Assessment Review Commission before the March 31, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Old Bethpage, Nassau County, New York

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Old Bethpage's effective property tax rate to other cities in New York and the median property tax rates in New York and the U.S.

Property Tax Rates Across Old Bethpage, Nassau County, New York

Source: Ownwell

0.18%

0.61%

1.04%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Old Bethpage Tax Rate

0.86%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Nassau County Tax Rate

0.71%

Median Effective New York Tax Rate

1.90%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Old Bethpage, Nassau County, New York

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
118040.76%0.82%0.86%0.89%0.93%

Source: Ownwell

Property Tax Assessment Values Across Old Bethpage, Nassau County, New York

When examining property taxes in Old Bethpage, New York, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Nassau County tax authority estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Nassau County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the season.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. For example, the median home price in Old Bethpage is $600,000, with tax bills ranging significantly across the county. ZIP code 11804 has the highest median home price at $600,000.

Property Tax Assessment Values Across Old Bethpage, Nassau County, New York

Source: Ownwell

$351,000

$2,146,500

$3,942,000

Median Old Bethpage Market Value

$600,000

Median Nassau County Market Value

$518,000

Median New York Market Value

$312,500

Median United States Market Value

$235,294

Property Tax Assessment Values Across Old Bethpage, Nassau County, New York

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
11804$480,000$537,000$600,000$665,000$732,000

Source: Ownwell

Property Tax Bills Across Old Bethpage, Nassau County, New York

Property tax bills in Old Bethpage are based on the assessed value of a home and the local tax rate set by taxing authorities. For a home with a median home price of $600,000, the bill can vary widely depending on the property’s assessed market value and any exemptions that may apply. In Nassau County, the 25th percentile tax bill is $4,539, the 75th percentile is $5,620, and the 90th percentile is $6,208, showing how quickly costs can rise for homeowners.

Property taxes affect monthly housing costs and can make ownership more expensive, especially when a home is assessed above its true market value. That is why reviewing your assessment matters.

Ownwell helps homeowners lower their property tax bills by identifying overassessments, filing appeals, and finding exemption opportunities. If your bill is higher than it should be, Ownwell can help you challenge it and potentially save money year after year.

Property Tax Bills Across Old Bethpage, Nassau County, New York

Source: Ownwell

$853

$5,263

$9,673

Median Old Bethpage Tax Bill

$5,091

Median Nassau County Tax Bill

$3,634

Median New York Tax Bill

$5,420

Median United States Tax Bill

$2,400

Property Tax Bills Across Old Bethpage, Nassau County, New York

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
11804$4,035$4,539$5,091$5,620$6,208

Source: Ownwell

Don't miss the deadline to file a grievance!

Frequently Asked Property Tax Questions in Old Bethpage, New York

How are property taxes calculated in Old Bethpage, New York?
Property taxes in Old Bethpage, New York are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.
How do I appeal my property taxes in Old Bethpage, New York?
To appeal your property taxes in Old Bethpage, New York, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.
What property tax exemptions are available in Old Bethpage, New York?
Common property tax exemptions in Old Bethpage, New York include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.
When are property taxes due in Old Bethpage, New York?
Property tax deadlines in Old Bethpage, New York vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.
How can Ownwell help reduce my property taxes in Old Bethpage, New York?
Ownwell provides professional property tax appeal services in Old Bethpage, New York. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.