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White Plains property after acquisition — Westchester County tax sale guide
Tax Issues

Westchester County Tax Foreclosure Guide: The In Rem Process Explained

✍️ Frank Sanchez & Larry Friedman · 📅 2026-02-12 · ⏱ 12 min read · 📂 Tax Issues

Updated March 2026

If you own property in Westchester County and have fallen behind on property taxes, understanding the tax foreclosure process isn't optional — it's urgent. New York's system works differently from the headlines you may have read about other states, and the consequences of inaction move quickly from inconvenient to permanent. This guide explains exactly how Westchester County's tax foreclosure process works under New York law, what you can do at each stage, and how a cash sale can protect your equity before it's gone.

The One Thing to Understand

New York uses an "in rem" tax foreclosure under New York Real Property Tax Law of the state statutes. There is no public auction where strangers bid against each other for your equity — instead, if you don't redeem (pay what's owed) by a court deadline, ownership transfers directly to the county or city. The single most important date is your redemption deadline.

How Property Tax Delinquency Starts in Westchester County

New York property taxes are billed in December and generally payable in installments through the following July. Once they go unpaid, the clock starts:

  1. Delinquency: Unpaid balances become delinquent and are turned over to the taxing authority — the Westchester County Department of Finance, or your town or city Receiver of Taxes for most local parcels.
  2. Interest and penalty accrue: New York charges 1% interest per month (12% per year) on delinquent property taxes, and the taxing authority may add a penalty of up to 0.5% per month — so the balance can grow by as much as 18% annually. Costs compound fast.
  3. Notice: Owners of record receive notice of the delinquency and again when the in rem proceeding begins; notice is also published in a local newspaper.
  4. You can stop the process by paying: Paying the full delinquent balance (taxes + interest + penalty + costs) to the treasurer at any time before the redemption deadline clears the parcel.

When the Tax Lien Attaches

When property taxes, interest, penalties, or special charges go unpaid, the amount becomes a lien against the parcel. Municipalities that enforce taxes under RPTL Article 11 let that delinquency accrue — generally about two years — before commencing an in rem foreclosure. Owners of record receive notice along the way. Key points:

  • The certificate is the legal foundation for foreclosure. It secures the delinquent amount against the property and starts the timeline that can eventually lead to losing the home.
  • You keep ownership for now. An unpaid tax lien does not transfer your property — it gives the taxing authority the right to foreclose later if the debt isn't paid.
  • Generally about two years of delinquency must pass before the taxing authority can begin in rem foreclosure on the certificate.
  • Redeem early and cheaply. Paying during the certificate period — before foreclosure costs are added — is by far the least expensive way out.

In Rem Tax Foreclosure & Your Redemption Period

If the certificate isn't redeemed, the county or City of the Hudson Valley starts an in rem tax foreclosure under RPTL Article 11. Here is how it actually unfolds:

  • Petition and list of tax liens filed. The treasurer files a petition and a list of delinquent parcels with the clerk of the New York State Supreme Court. This is a public record.
  • Published and mailed notice. Notice runs in a local newspaper for three consecutive weeks and is mailed to owners of record.
  • A redemption deadline set by the petition. The proceeding generally follows about two years of delinquency (RPTL §1110), and the foreclosure petition states a specific last day to redeem by which you must pay the back taxes to keep the property.
  • How to redeem. Pay the treasurer all unpaid taxes, interest, penalties, and the county's costs by the deadline. You'll receive a redemption certificate and the foreclosure is canceled as to your parcel.
  • Right to answer. If you have a legal objection, you (or any lienholder) may file a verified answer with the treasurer within the time allowed.
  • Judgment. If you neither redeem nor answer by the deadline, the Supreme Court enters a judgment of foreclosure that bars all further right of redemption, and title vests in the taxing authority. After judgment, the home is gone.
⚠️ After Judgment, You May Still Have a Right to Surplus Proceeds

Following the U.S. Supreme Court's 2023 decision in Tyler v. Hennepin County, New York changed its law so that a former owner can claim the surplus when a tax-foreclosed property is later sold for more than the taxes and costs owed (RPTL Article 11, amended by L. 2024, ch. 55, pt. BB). The county or city must try to locate you to pay it. But surplus rules are narrow and procedural — relying on them is far riskier than selling on your own terms before the deadline, where you control the price and timing.

Westchester County Tax Foreclosure Timeline

TimeframeEventWhat You Can Do
Year 1Taxes go unpaid and become delinquentPay in full to stop the process entirely
Year 1Taxes go unpaid — a lien attaches to the parcelPay early — costs are lowest now
Year 1–2Interest (1%/mo) and penalty accrueSet up a treasurer payment plan; check SONYMA / NYS HCR programs
~Year 2–3In rem petition & list of tax liens filed; notice publishedRedeem, or file an answer if you have a legal objection
8+ weeks after publicationRedemption final datePay in full or sell the property before this date
After deadlineJudgment of foreclosure; title vests in county/cityHome is lost; only a possible surplus-proceeds claim remains

Payment Plans and Relief Programs

Before resorting to a property sale, exhaust these options:

  • Treasurer payment plan: The Westchester County Treasurer (and the City of the Hudson Valley Treasurer for city parcels) can set up installment plans for delinquent taxes. Contact the county Department of Finance — they generally prefer collecting over foreclosing.
  • New York Help for Homeowners (via SONYMA / NYS HCR): hcr.ny.gov — a federally funded program that has, at times, covered delinquent property taxes for qualifying homeowners. Funds are limited; confirm current availability.
  • STAR credit: Lower-income homeowners and renters can claim this relief through the NYS Department of Taxation and Finance at tax.ny.gov to offset property taxes.
  • STAR and Enhanced STAR programs: Applied automatically to qualifying owner-occupied homes on the New York tax bill — make sure your primary residence is correctly claimed with the treasurer.
  • Chapter 13 bankruptcy: An automatic stay immediately halts tax foreclosure, and Chapter 13 lets you repay delinquent taxes over 3–5 years. Consult a bankruptcy attorney.

Why Selling Before Foreclosure Protects Your Equity

If you have equity in your Westchester County property and can't resolve the delinquency through a payment plan or relief program, selling before the redemption deadline is usually the most rational financial decision. Here's why:

A property with $25,000 in delinquent taxes, a $90,000 mortgage balance, and a market value of $230,000 has roughly $115,000 in owner equity. A cash sale to Simply Sold RE might look like: sale price (about $175,000–$190,000 as-is) minus $25,000 taxes and the $90,000 mortgage paid at closing = $60,000–$75,000 to you. Lose the home to an in rem judgment and you keep none of that on your own terms — at best you're left chasing a narrow surplus-proceeds claim.

The delinquent taxes are paid from the sale proceeds at closing — you don't need to come up with the money in advance. Call us at (914) 000-0000 — we'll walk through the exact math for your specific situation.

Frank Sanchez — Co-Founder, Simply Sold RE
Frank Sanchez
Co-Founder, Simply Sold RE

Frank Sanchez is a co-founder of Simply Sold RE and a real estate entrepreneur with 20+ years of experience in the Lower Hudson Valley. He started as a brokerage owner before building Simply Sold RE to give the Lower Hudson Valley homeowners a faster, simpler way to sell — with multiple options and seller-first integrity.

Frequently Asked Questions

New York uses an "in rem" tax foreclosure under the Real Property Tax Law (RPTL Article 11). When property taxes go unpaid the amount becomes a lien on the parcel. After the delinquency runs long enough — generally about two years — the county or municipality files an in rem foreclosure petition and list of delinquent taxes with the County Clerk, publishes notice in a local newspaper, and the petition sets a redemption deadline. You can pay the delinquency in full any time before that deadline to keep the property. Contact your local Receiver of Taxes or the county Department of Finance for exact figures.
In an in rem tax foreclosure, the foreclosure petition sets a specific redemption deadline, and the proceeding generally follows about two years of delinquency (notice also runs in a local newspaper for three consecutive weeks). During that window you can redeem by paying the county or city treasurer all delinquent taxes, interest, penalties, and costs. If you fail to redeem or answer the petition by the deadline, the Supreme Court enters a judgment of foreclosure (RPTL Article 11) and title transfers to the taxing authority. There is no post-judgment redemption — once the deadline passes, the home is lost.
Often, yes. The Westchester County and City of the Hudson Valley treasurers offer installment payment plans for delinquent property taxes, and staying current on an approved plan generally keeps a parcel out of foreclosure. Contact the Westchester County Department of Finance (or your town/city Receiver of Taxesudson Valley Treasurer for city parcels). They generally prefer collecting taxes to foreclosing.
Yes — and this is often the best option if you have equity. Delinquent taxes are paid directly from the sale proceeds at closing; you don't need to come up with the money in advance. If your home has equity above the tax delinquency and any mortgage balance, selling before the redemption deadline lets you capture that equity on your own terms instead of losing control of the property to an in rem judgment.
Yes. Owner-occupied New York homes receive the STAR and Enhanced STAR benefits, applied to the school-tax portion of the bill for qualifying primary residences. Lower-income homeowners and renters may also qualify for the STAR credit (administered by the NYS Department of Taxation and Finance at tax.ny.gov), which can offset property taxes for households under the program's income limit. These don't erase a delinquency, but they reduce the ongoing tax burden.
The NY Homeowner Assistance Fund (New York Help for Homeowners), at hcr.ny.gov, was established with federal American Rescue Plan funding to help NY homeowners with mortgage arrears, property tax delinquencies, utility arrears, and homeowner's insurance. Eligibility and funding availability change — check hcr.ny.gov directly for current status.

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