Nassau County, N.Y.Good GrievesSources reviewed September 20, 2026
Nassau County property tax due dates: school and general taxes
Nassau County homeowners pay property tax in four installments a year, on two separate bills. The dates are steady from year to year, the penalty for missing one is not small, and the office that takes your payment depends on where you live.
Each half has a penalty-free period of about 40 days. School halves are due October 1 and April 1; general halves are due January 1 and July 1. Confirm the dates for the current year with your town’s receiver of taxes or your city’s tax office before you rely on them.
The four installments
Town receivers of taxes bill two taxes, each in two halves. The school tax funds your school district. The general tax covers county and town taxes and any special districts where you live, such as sanitation or fire districts, according to the Town of Hempstead. The Town of Oyster Bay describes “a 40 day penalty free period between the due date and penalty date” for each half:
| Installment | Due, and last day without penalty |
|---|---|
| School tax, first half | Due October 1Payable without penalty through November 10. If that day falls on a weekend, your receiver may move it to the next business day. |
| General tax, first half | Due January 1Payable without penalty through February 10. If that day falls on a weekend, your receiver may move it to the next business day. |
| School tax, second half | Due April 1Payable without penalty through May 10. If that day falls on a weekend, your receiver may move it to the next business day. |
| General tax, second half | Due July 1Payable without penalty through August 10. If that day falls on a weekend, your receiver may move it to the next business day. |
Bills can arrive on or just after the due date; the County’s assessment review calendar, for example, lists school bills as mailed October 2, 2028. What matters is the last penalty-free day.
You can pay each half separately. The Town of Hempstead also states that if you pay both halves of the school tax by November 10, or both halves of the general tax by February 10, you may deduct a 1% discount on the second half. Ask your own receiver whether it offers the same.
Who collects your taxes
Where you pay depends on your municipality, and a single household can pay more than one office.
- The three towns. In Hempstead, North Hempstead, and Oyster Bay, the town receiver of taxes collects school and general taxes. The Town of North Hempstead describes its receiver as billing and collecting “all Town, County, School, and Special District taxes” within the town.
- Incorporated villages. Village taxes are billed and collected by each village, not by the town. The Town of Hempstead directs village residents to their village for those dates.
- City of Long Beach. The City’s Tax Department bills and collects City real estate taxes and the current year’s County taxes. Its payment schedule lists the County halves on the same January and July dates as the towns, the City tax in July and January halves, and the Long Beach school tax as payable to the Town of Hempstead’s receiver.
- City of Glen Cove. The City’s Finance Department collects City, County, and school taxes, and its school tax calendar differs from the towns’. Confirm the current dates with the City of Glen Cove.
Common questions
When are Nassau County property taxes due?
In the three towns, the school tax is billed in two halves due October 1 and April 1, and the general tax (county, town, and special district taxes) in two halves due January 1 and July 1. Each half can be paid without penalty through November 10, May 10, February 10, and August 10 respectively. Confirm the current dates with your town’s receiver of taxes, because a last day that falls on a weekend has been moved to the next business day.
The dates appear on the Town of Oyster Bay’s receiver FAQ and the Town of Hempstead’s penalty schedule. The Town of North Hempstead, for example, set Monday, May 11, 2026 as the last penalty-free day for the second half of the 2025–26 school tax. The Cities of Glen Cove and Long Beach use different schedules for some taxes; see below.
What is the penalty for paying Nassau County property taxes late?
The Town of Oyster Bay states that a payment made after the penalty-free period is charged 1% per month, counted back to the original due date. The Town of Hempstead’s published schedule, for example, adds 2% to a first-half school tax payment made November 11–30, and the charge rises each month after that. Check the schedule on your own receiver’s site or tax bill.
Because the penalty is counted from the due date rather than from the end of the penalty-free period, a payment one day late already carries two months of penalty. Read the full tables on the Town of Hempstead’s tax penalties page; the Town of Hempstead notes the schedule also appears on the back of its payment stubs.
Who do I pay if I miss the town deadline?
The towns accept current-year school taxes through May 31 and general taxes through August 31. After those dates the town levy closes, and the unpaid tax is payable to the Nassau County Treasurer at 1 West Street in Mineola. The County begins collecting delinquent school taxes on June 1 and general taxes on September 1.
See the Treasurer’s page on paying delinquent taxes. Unpaid taxes that remain outstanding can be included in the County’s annual tax lien sale.
Do I pay my own taxes if my mortgage has an escrow account?
Usually your lender pays from the escrow account. The Town of Oyster Bay states that if you have a mortgage with an escrow account, your tax bills are sent directly to your lending institution. You remain the owner responsible for the tax, so confirm with your servicer that each half was paid on time.
The Town of Hempstead states that the law requires its receiver to send tax receipts directly to taxpayers whose taxes are paid by a bank. If you do not receive one, ask your servicer or the receiver’s office to confirm the payment.
Does filing a tax grievance change when my taxes are due?
No. The Assessment Review Commission reviews your assessment, not your tax bill, and filing does not change the due dates on the bills you receive. Keep paying each bill on time. A reduction affects the bills calculated from the reduced assessment, and in some cases taxes already paid are refunded.
The County’s FAQ states that ARC reviews the assessment value and that tax rates are set by each district’s budget process. Our guide to how grievance savings are paid explains when a reduction shows up.
Paying on time by mail
A mailed payment is on time if the envelope is postmarked by the last penalty-free day. The Town of Oyster Bay states that only an official U.S. Postal Service postmark counts as proof; a postage-meter date is not accepted. If you are mailing close to the deadline, ask the post office to hand-cancel the envelope, or pay online or in person instead. The towns list their payment options, including online payment, on their receiver pages.
What happens if you pay late
A late payment picks up a monthly penalty counted from the original due date, as described above. The towns keep collecting the current year’s school tax through May 31 and general tax through August 31. After that the town levy closes and the balance is paid to the Nassau County Treasurer, which begins delinquent collection on June 1 for school taxes and September 1 for general taxes.
Taxes that stay unpaid can end up in the County’s annual tax lien sale. The Treasurer has announced that it will sell liens for unpaid 2026 taxes on February 16, 2027, unless the taxes, interest, penalties, and charges are paid by February 10, 2027. If you are behind, call the Treasurer’s office before that date rather than after it.
If your taxes are paid through escrow
If your lender pays through escrow, check your escrow statement after each due date to confirm each half was paid on time, and tell your servicer promptly if a bill reaches you instead. Our guide to how grievance savings are paid covers what changes in escrow after a reduction.
Where the amounts come from
The due dates are fixed. The amounts are not: each bill is your property’s taxable assessed value multiplied by the tax rates of the districts you live in. Our guide to how your tax bill is calculated walks through the arithmetic, and property taxes by area shows how bills differ across Nassau County. The one part of the calculation you can challenge is the assessment, and the window for that is separate from these due dates. See the filing deadlines, and check your property before the next window opens.
Remind me before the filing window opens.
The published ARC filing window is January 4–March 1, 2027. Leave your email and we’ll send one reminder before it opens.
We’ll only use your details to send that reminder. No newsletter, no sharing, and nothing is filed with the County.This page is general information, not legal or tax advice. Good Grieves does not collect or forward tax payments, and the County’s and towns’ own pages are the final word on dates and penalties.
Keep reading
How your tax bill is calculated
Taxable assessed value times the rates of every district you live in: how school, general, and special district taxes combine, and what a grievance changes.
How grievance savings and refunds are paid
Why an ARC reduction usually shows up as a lower bill a year or more later, when a refund is paid instead, how SCAR refunds work, and what escrow changes.
See how it applies to your home
Review your available County record alongside what you’ve learned.
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