AppealDesk

Rockland County Property Tax Grievance — New York

Rob HartleyRob Hartley·Updated March 5, 2026

Rockland County is located in the Lower Hudson Valley of New York, just north of New Jersey and west of the Hudson River. With a population of approximately 338,329 (2020 Census), it is the third-most densely populated county in New York outside of New York City. The county seat is New City, with major population centers including Ramapo (148,919 residents), New City (33,559), Monsey, and Nanuet. Rockland County has some of the highest property tax burdens in the nation, making property tax grievances critically important for homeowners seeking relief from overassessment.

Notable cities: New City, Ramapo, Monsey, Nanuet, Pearl River, Spring Valley

Median Home

$564,200

Tax Rate

1.77%

Annual Tax

$10,001

Population

338,329

2026 Grievance Deadline: May 26, 2026 (Fourth Tuesday in May)

In Rockland County, Grievance Day falls on the fourth Tuesday in May each year. For 2026, this is May 26th. The deadline is strictly enforced and must be met to preserve your right to appeal. If you miss this deadline, you must wait until the following year to file a grievance. Some towns may have slightly different dates, so confirm with your local town assessor.

Property in Rockland County, New York — local tax assessment and grievance guide

How Rockland County Assesses Property

100%of market value

Assessed by: Local Town Assessors (Rockland County has five towns: Clarkstown, Haverstraw, Orangetown, Ramapo, and Stony Point, each with their own assessor)

Assessment cycle: annual

Notices typically mailed: Spring (typically mid-May)

In Rockland County, properties are assessed annually by local town assessors. New York State uses a 100% assessment ratio system, meaning your assessed value should equal your property's full market value. For example, if your home's market value is $564,200 (the county median), your assessed value would be $564,200. At the county's effective tax rate of 1.77%, this results in approximately $10,001 in annual property taxes. However, individual municipalities within Rockland County may use different Residential Assessment Ratios (RAR) that vary by town, which is used to convert assessments to market values for comparison purposes.

The Grievance Process

Appeals are heard by the Board of Assessment Review. After filing, you may be scheduled for an informal hearing before your town's Board of Assessment Review. The Board consists of 3-5 appointed members who will review your evidence. You'll present your case, the assessor may respond, and the Board will issue a written determination with their reasoning. Many cases are resolved through stipulation with the assessor before the formal hearing.

1

Step 1: Obtain your current assessment from your tentative assessment roll or tax bill, which is typically mailed in May. Your assessment determines your property taxes.

2

Step 2: Research your property's true market value using recent comparable sales from Zillow, recent appraisals, or a competitive market analysis from a real estate broker. This is your evidence that you're over-assessed.

3

Step 3: Complete Form RP-524 (Complaint on Real Property Assessment). Include your property information, current assessed value, and your opinion of the property's market value. Check the box for 'Excessive Assessment' or 'Unequal Assessment' as your complaint basis.

4

Step 4: Prepare supporting documentation including a letter explaining why you believe your assessment is too high, recent comparable property sales data, photographs showing property condition, repair estimates for any defects, or a professional appraisal.

5

Step 5: File your completed RP-524 form and supporting documents with your town's Board of Assessment Review or assessor's office on or before Grievance Day (fourth Tuesday in May). Keep copies of everything you submit.

6

Step 6: Attend your informal hearing with the Board of Assessment Review if scheduled. Present your evidence and be prepared to answer questions about your property and comparable sales.

7

Step 7: Receive the Board's written determination, typically within a few weeks. If you disagree with their decision, you have 30 days to file for Small Claims Assessment Review (SCAR) or an Article 7 tax certiorari proceeding in New York Supreme Court.

8

Step 8: If needed, pursue judicial review through SCAR (for residential properties under certain value thresholds) or Article 7 proceeding with an attorney for further reduction.

Required form: Form RP-524 (Complaint on Real Property Assessment)

Filing Methods

mail:Mail completed Form RP-524 to your local town assessor's office. Must be received by Grievance Day (not postmarked).
in-person:Deliver Form RP-524 to your local town Board of Assessment Review or assessor's office by Grievance Day.
online:Some towns may accept electronic filing - check with your specific town assessor. PDF format with digital signature may be accepted in certain municipalities.

Evidence to Bring

Recent comparable property sales (similar homes sold in your area in the past 6-12 months)Professional appraisal report (if available)Photographs documenting property condition, defects, or needed repairsRepair estimates or contractor quotes for necessary workCompetitive market analysis from a licensed real estate brokerDocumentation of assessment inequalities compared to similar properties

Rockland County Assessor Contact

Rockland County Department of Finance, Real Property Tax Department

Phone: (845) 638-5131

Address: 18 New Hempstead Road, 3rd Floor, New City, NY 10956

Website: https://www.rocklandcountyny.gov/departments/finance

Online Portal: https://cotthosting.com/NYRocklandExternal

Hours: Contact office for current hours of operation

Tax Exemptions in Rockland County

STAR Exemption (School Tax Relief)

Basic STAR: $893-$1,530 annually depending on school district and property class; Enhanced STAR: $1,691-$3,065 annually

Reduces school property taxes for primary residences. Basic STAR for homeowners with income under $500,000; Enhanced STAR for seniors age 65+ with income under $93,200.

Eligibility: Must be primary residence. Basic STAR: income under $500,000. Enhanced STAR: age 65+ by December 31 and income under $93,200.Deadline: March 1st annually (Taxable Status Date)

Senior Citizens Exemption

50% exemption on assessed value up to $12,000 maximum benefit

Provides a 50% exemption from county taxes on the assessed value of real property owned by persons age 65 or older with limited income.

Eligibility: Age 65 or older, property must be primary residence, income limitations apply under Real Property Tax Law Section 467Deadline: March 1st (Taxable Status Date)

Alternative Veterans Exemption

15% reduction for wartime service, additional 10% for combat zone service, plus 50% of service-connected disability rating

Reduces assessed value for eligible veterans who served during wartime or received expeditionary medals. Applies to county, town, and village taxes (not school taxes).

Eligibility: Honorably discharged veterans who served during designated wartime or received expeditionary medals. Property must be primary residence.Deadline: March 1st (Taxable Status Date)

Cold War Veterans Exemption

15% of the first $80,000 of assessed value (up to $12,000 maximum), plus additional 50% of disability rating up to $40,000

Partial exemption for veterans who served during the Cold War period (September 2, 1945 - December 26, 1991). Made permanent in Rockland County.

Eligibility: Veterans who served between September 2, 1945 and December 26, 1991 with honorable discharge. Property must be primary residence.Deadline: March 1st (Taxable Status Date)

Homestead Exemption (Bankruptcy Protection)

$204,825 equity protection for Rockland County residents

Protects home equity from creditors in bankruptcy proceedings under New York State law, not a property tax reduction.

Eligibility: Primary residence only. Applies in bankruptcy or judgment enforcement actions.Deadline: Claimed when needed in legal proceedings

Official Resources

Rockland County Department of Finance - Real Property Tax →

Official Rockland County website for property tax information, payment options, and department contact information.

New York State Property Tax Grievance Forms and Instructions →

Official NYS Department of Taxation and Finance page with Form RP-524, filing instructions, and grievance procedures.

Rockland County Property Records Search →

Search and view property records, deeds, assessments, and ownership information for Rockland County properties.

New York State Property Tax Exemptions Information →

Comprehensive information about property tax exemptions available in New York State, including STAR, senior, and veteran exemptions.

Check Your Rockland County Assessment

Enter your address to see if your Rockland County property is overassessed.

✓ All 50 states✓ Instant results✓ $49 flat fee

Frequently Asked Questions

What is the deadline to grieve my property taxes in Rockland County for 2026?
The property tax grievance deadline in Rockland County is May 26, 2026, which is the fourth Tuesday in May. This is known as Grievance Day and is strictly enforced. You must file your completed Form RP-524 with your local town's Board of Assessment Review or assessor's office on or before this date. The deadline is based on when your form is received, not postmarked, so mail early or deliver in person. Missing this deadline means you lose your right to appeal your assessment for that tax year and must wait until the following year to file.
How much can I save by filing a property tax grievance in Rockland County?
Savings from a successful property tax grievance in Rockland County can be substantial given the county's high tax burden. With a median annual tax bill of $10,001 and an effective tax rate of 1.77%, even a modest assessment reduction can save hundreds or thousands of dollars annually. For example, reducing your assessed value by $50,000 would save approximately $885 per year. If you successfully reduce a $600,000 assessment to $550,000, you could save around $885 annually, and these savings continue year after year until the next reassessment. One documented case showed an annual reduction of over $7,300 in Rockland County.
What evidence do I need for a successful Rockland County property tax grievance?
The most compelling evidence for a Rockland County tax grievance includes recent comparable sales of similar homes in your neighborhood that sold for less than your assessed value. You should gather at least 3-5 comparable properties from the past 6-12 months, which can be found on Zillow, Realtor.com, or through your local MLS. A professional appraisal (typically $400-$600) provides strong evidence but isn't required. Photographs documenting property defects, needed repairs, or unfavorable conditions strengthen your case. Contractor repair estimates showing deferred maintenance or necessary improvements also help. The key is proving your home's market value is lower than your assessed value.
Do I need to hire a lawyer to file a property tax grievance in Rockland County?
No, you do not need to hire a lawyer or tax grievance company to file a property tax grievance in Rockland County. Homeowners can file Form RP-524 themselves at no cost. The process involves researching comparable sales, completing the form, and presenting your case to the Board of Assessment Review. However, many property owners do hire attorneys or grievance firms who work on contingency (typically taking 40-55% of first year's savings only if successful). These professionals handle the research, paperwork, and hearings. If your grievance is denied by the Board and you want to pursue Small Claims Assessment Review (SCAR) or Article 7 court proceedings, legal representation becomes more important.
What happens after I file my property tax grievance in Rockland County?
After filing your Form RP-524 with your town's Board of Assessment Review, you'll typically receive a notice scheduling an informal hearing, usually held in June or July. At this hearing, you present your evidence to the Board (3-5 appointed members), and the assessor may respond with their own evidence. Many cases are resolved through stipulation with the assessor before the formal hearing. The Board will issue a written determination within a few weeks, explaining their decision. If they reduce your assessment, it appears on the final assessment roll in July and reduces your tax bill. If denied or you're unsatisfied, you have 30 days to file for Small Claims Assessment Review (SCAR) or Article 7 proceeding in Supreme Court.
Can my property taxes increase if I file a grievance in Rockland County?
No, your property assessment and taxes cannot increase as a result of filing a property tax grievance in Rockland County. New York State law protects homeowners by prohibiting assessment increases based solely on filing a grievance. The Board of Assessment Review can only reduce your assessment, leave it the same, or deny your grievance—they cannot raise it. This means there is no financial risk to filing a grievance. Your assessment can only increase during the regular annual reassessment process based on market changes, property improvements, or other factors unrelated to your grievance filing. This no-risk policy encourages homeowners to challenge assessments they believe are unfair.
How does Rockland County's assessment ratio work and how does it affect my taxes?
New York State technically uses a 100% assessment ratio system, meaning properties should be assessed at 100% of market value. However, individual municipalities in Rockland County use Residential Assessment Ratios (RAR) that vary by town and year. The RAR is used to convert your assessed value to the municipality's assumed market value. For example, in 2022, Clarkstown had a RAR of 27.05%, meaning if your assessed value was $218,000, your assumed market value was $805,535 ($218,000 ÷ 0.2705). If you believe this assumed value is too high compared to your actual market value, you have grounds for a grievance. Understanding your town's RAR is crucial for determining if you're over-assessed.
What property tax exemptions can reduce my Rockland County tax bill?
Rockland County homeowners may qualify for several exemptions that can significantly reduce property taxes. The STAR exemption reduces school taxes: Basic STAR (income under $500,000) saves $893-$1,530 annually, while Enhanced STAR (age 65+, income under $93,200) saves $1,691-$3,065 annually depending on your school district. The Senior Citizens Exemption provides a 50% reduction on assessed value for those 65+ with limited income (up to $12,000 benefit). Veterans can receive the Alternative Veterans Exemption (15% reduction plus 10% for combat, plus 50% of disability rating) or Cold War Veterans Exemption (15% of first $80,000 assessed value). All exemptions require filing by March 1st with your local assessor.

For state-wide grievance information including New York's assessment ratio and deadlines, see our New York Property Tax Grievance Guide →

Considering professional help with your grievance? Compare pricing, coverage, and pros/cons in our Best Property Tax Grievance Services (2026) or browse side-by-side service comparisons →

More New York Counties

Albany County (Albany)Bronx County (Bronx)Dutchess County (Poughkeepsie)Erie County (Buffalo)Kings County (Brooklyn)Monroe County (Rochester)
← All New York property tax grievance info

Sources: https://www.aventineproperties.com/rockland-county-tax-grievance/ | https://www.ownwell.com/trends/new-york/rockland-county | https://www.tax-rates.org/new_york/rockland_county_property_tax | https://taxbycounty.com/new-york/rockland-county | https://en.wikipedia.org/wiki/Rockland_County,_New_York | https://www.tax.ny.gov/pit/property/contest/grievproced.htm | https://www.propertytax101.org/newyork/rocklandcounty/taxassessor | https://www.tax.ny.gov/pit/property/exemption/index.htm | https://ecode360.com/9669102

Last verified: 2026-03-05