Hamlet · Oyster Bay · 2028 tentative roll
Oyster Bay property taxes
37 homes sold here recently. The County valued them anywhere from 41% to 81% of what they sold for.
Free to look. A grievance can’t raise your assessment.
37 recent sales
County value as a share of each sale price
At the same $1.1M price, that’s $446k for one home and $891k for another.
- Typical County value
- $711,000
- Homes counted
- 3,025
How Oyster Bay compares
Value
$711k Higher than 70 of 119 hamlets and villages
Bills here run high partly because homes are worth more. That alone doesn’t mean anyone is over-assessed: what counts is how your home compares with similar homes in Oyster Bay.
Valued most like Oyster Bay: Syosset, Albertson, Locust Valley
Is Oyster Bay assessed evenly?
37 one-to-three family homes in Oyster Bay sold in the 18 months before the County’s valuation date. For the middle sale, the County’s market value was 56% of the sale price. That is below 100%, so the County typically valued these homes lower than they sold for.
The County valued 0% of these homes above what they sold for. Values here are about as even as the standard assessors are held to.
- Homes sold and compared
- 37After setting aside 2 unusual sales
- County value as a share of sale price
- 56%The middle sale; 100% means the County’s value matched the price
- Valued above their sale price
- 0%
- Evenness of values (COD)
- 14The assessors’ standard for homes is 15 or lower; higher means less even
- Price-related differential (PRD)
- 1.020.98 to 1.03 is acceptable; higher favors expensive homes
By sale price
The same sales split into five groups by price. For the cheapest fifth, the County’s value was 58% of the sale price; for the priciest fifth, 57%.
Sale prices come from New York State SalesWeb records, adjusted to the valuation date by the local price trend of +0.6% a month. A ratio study describes Oyster Bay, not your home: one sale can be unusual. It is not an appraisal. Compare your own home or see how every district ranks.
Home values in Oyster Bay
A quarter of homes in Oyster Bay are valued under $533,250 and a quarter over $1,260,000. A home near the top isn’t over-assessed for that alone; it may simply be larger, newer, or on more land.
| Figure | 5th percentile | 25th percentile | Median | 75th percentile | 95th percentile |
|---|---|---|---|---|---|
| County market value | $88,400 | $533,250 | $711,000 | $1,260,000 | $2,965,000 |
| Assessed value | $88 | $533 | $711 | $1,260 | $2,965 |
County market value
- Median
- $711,000
- Middle half
- $533,250–$1,260,000
- Most homes (5th–95th)
- $88,400–$2,965,000
Assessed value
- Median
- $711
- Middle half
- $533–$1,260
- Most homes (5th–95th)
- $88–$2,965
Taxes paid in Oyster Bay
We have County payment records for only 13 of the 3,025 homes in Oyster Bay, and they are not a random sample. Among those homes, the median school and general payment recorded for 2026 was $13,713. Treat it as a rough guide, not the area’s typical bill.
View recorded payments by year (6 years)
| Collection year | Homes | Median recurring payment | Change |
|---|---|---|---|
| 2021 | 13 | $12,391 | No earlier year |
| 2022 | 13 | $12,265 | −1.0% |
| 2023 | 13 | $12,371 | +0.9% |
| 2024 | 14 | $13,335 | +7.8% |
| 2025 | 13 | $13,337 | 0.0% |
| 2026 | 13 | $13,713 | +2.8% |
Reading these figures
A median describes Oyster Bay, not your home, which may sit well above or below it for good reasons. The tentative roll can still change before it becomes final. Recorded payments are not a tax bill: exemptions and special districts vary by home. This page summarizes published records and is not an appraisal; verify any figure that matters in the Nassau County Land Records Viewer, and see how these pages are built.
Common questions
How are homes in Oyster Bay assessed?
Nassau assesses one-to-three family homes at the same small fraction of County market value across the county. In Oyster Bay, the median assessed value is $711, which is 0.1% of market value. Your tax bill is calculated from assessed value.
How do I file a property tax grievance in Oyster Bay?
File with Nassau County’s Assessment Review Commission (ARC), online or on paper, during the published window of January 4–March 1, 2027. Filing is free, needs no attorney, and the County states a grievance never raises an assessment. ARC reviews the assessment behind county, town, and school taxes. If your home is in an incorporated village that sets its own assessment, the village holds a separate grievance, usually in February.
See any home’s County record and how it compares.
Look up any home to see the value the County has assigned it. No account, payment, or appeal authorization required.
We have records for every town and city in Nassau County.
School districts serving Oyster Bay
School districts that serve homes in this area. Each has its own summary page.
- Oyster Bay/Oyster Bay - East Norwich CSD # 62,579 homes
- Brookville/Locust Valley CSD # 3169 homes
- East Norwich/Oyster Bay - East Norwich CSD # 6113 homes
- Syosset/Syosset CSD # 2109 homes
- Cold Spring Harbor School District30 homes
Town of Oyster Bay taxes and grievances · Browse every school district, hamlet, and village
Other hamlets and villages in Oyster Bay
Compare Oyster Bay with its neighbors on the same roll.
Keep reading
Understanding your Nassau County assessment
Market value, assessed value and your bill measure different things. A grievance argues the value behind your assessment is too high.
Choosing comparable sales
Homes like yours in size, type, location and condition. A neighbor’s lower tax bill isn’t evidence.
Nassau County tax grievance deadline
January 4–March 1, 2027, filed with ARC. Don’t count on an extension.