Rockland Property Tax: Rates, Deadlines & Appeals (2026)

Direct answer: Rockland County does not run one countywide assessment appeal office; you file with the assessor or Board of Assessment Review in the town where the property is assessed: Clarkstown, Haverstraw, Orangetown, Ramapo or Stony Point. The normal Rockland rule is Grievance Day = the 4th Tuesday in May; for 2026 that was Tuesday, May 26, 2026. As of today, the next regular town Grievance Day is expected to be Tuesday, May 25, 2027.

How assessments work in Rockland County

Rockland property assessments are set by the town assessors, not by the County Finance Department. The five assessing units are the Towns of Clarkstown, Haverstraw, Orangetown, Ramapo and Stony Point. Each town assessor places a value on real property, publishes a tentative roll, handles exemptions, and defends the roll before the local Board of Assessment Review.

The local calendar is unusually important. Rockland towns follow the New York assessment cycle: July 1 of the prior year is valuation day, March 1 is taxable-status day and the exemption deadline, May 1 is tentative roll day, the 4th Tuesday in May is Grievance Day, and the final roll is filed around July 1. Stony Point’s 2026 assessor page stated that grievances could be filed from May 1, 2026 through May 26, 2026; Clarkstown, Orangetown and the state calendar use the same 4th-Tuesday rule. Haverstraw’s current assessor page repeats the 4th-Tuesday rule but also displays “May 1, 2026 and May 28, 2026,” so a Haverstraw owner should confirm the accepted cutoff with the assessor before relying on the later date.

Rockland assessments are fractional. The County Legislature adopted 2026 equalization rates of 21.15% Clarkstown, 49.26% Haverstraw, 31.89% Orangetown, 7.54% Ramapo and 9.36% Stony Point. In plain English: divide your assessment by your town’s rate to estimate the market value implied by the roll. A Ramapo assessment of $60,320, for example, implies roughly $800,000 of market value because $60,320 ÷ 0.0754 = $800,000.

Whether you should appeal

Appeal when the roll’s implied market value is higher than what your home was worth on the valuation date, or when your assessment is out of line with similar nearby homes. Do not appeal only because your tax bill is high: the Board of Assessment Review can reduce the assessment; it cannot lower school, county, town or special-district tax rates.

Start with three checks:

1. Convert the assessment to market value. Use your town equalization rate, or the residential assessment ratio if your town publishes one for the roll.
2. Use evidence from the right time period. Sales closest to the valuation date are strongest. For the 2026 roll, towns value property as of July 1, 2025.
3. Check exemptions separately. A missing STAR, Enhanced STAR, senior, disability, veterans, clergy, nonprofit, agricultural, or volunteer firefighter/ambulance exemption is often not fixed by arguing market value. Most exemptions must be filed by March 1 with the town assessor. Clarkstown notes that all exemption applications are due by March 1 and that, beginning in 2026, homeowners no longer apply locally for Enhanced STAR; New York State Taxation and Finance reviews eligibility.

Official sources I checked did not publish a reliable Rockland-wide homeowner appeal success rate or median reduction. Treat any mailer claiming a guaranteed reduction with caution.

Step-by-step how to file

1. Find your town assessor. File in the town where the property is assessed:

• Clarkstown Assessor — Town Hall, 10 Maple Avenue, New City, NY 10956. Clarkstown’s official deadline rule is the 4th Tuesday in May.
• Haverstraw Assessor — Town Hall, One Rosman Road, Garnerville, NY 10923; assessor email shown by the town: assessor@townofhaverstraw.org. The Haverstraw assessor page says grievance complaints may be handled by mail/email/fax in its notice materials; confirm the current-year cutoff directly because the 2026 webpage date conflicts with the 4th-Tuesday rule.
• Orangetown Assessor — Town Hall, 26 Orangeburg Road, Orangeburg, NY 10962; phone 845-359-5100 ext. 5002. Orangetown lists Grievance Day as the 4th Tuesday in May.
• Ramapo Assessor — Town Hall, 237 Route 59, Suffern, NY 10901. Ramapo’s published notices require RP-524 and supporting documentation to be received by the assessor by the Grievance Day deadline; mail must arrive by the deadline.
• Stony Point Assessor — Town Hall, 74 East Main Street, Stony Point, NY 10980. Stony Point’s 2026 page stated May 1–May 26, 2026 and links directly to the RP-524 package.

2. Use the right form. The statewide form is Form RP-524, Complaint on Real Property Assessment. Use the official New York State form and instructions, not a private substitute. Attach your proof: closing statement, appraisal, broker price opinion, comparable sales grid, photographs, repair estimates, or evidence that a comparable property is assessed lower.

3. File by the deadline. The administrative filing is free. New York’s rule is strict: if mailed, RP-524 must be received by the assessor or Board of Assessment Review no later than Grievance Day. Do not rely on a postmark.

4. Filing methods. Rockland does not appear to have a single county portal for assessment grievances. The safe default is in person or mail to the town assessor/BAR. Use email, fax, drop box or any electronic filing only if that town’s current notice expressly allows it for that roll year; New York permits e-filing only where the assessing unit has opted to accept it.

What happens after

The appeal authority is the town Board of Assessment Review, usually called the BAR. It is not the county legislature and not the tax receiver. The BAR reviews your RP-524, supporting documents and the assessor’s position.

On Grievance Day, the BAR may hold short hearings. In practice, this is usually a focused, informal meeting: you explain why the assessment is too high, point to your evidence, and answer questions. You are not required to make a courtroom-style argument. Some towns or years may allow the board to decide on written submissions without an oral appearance; if you want that, ask the assessor when you file.

The BAR can leave the assessment unchanged, reduce it, or in unusual cases correct other roll issues. The final assessment roll is filed around July 1. If you still disagree and the home is an eligible one-, two- or three-family owner-occupied residence, you may usually file a Small Claims Assessment Review (SCAR) petition in Supreme Court after the final roll. SCAR is a separate court step, generally due within 30 days after the final roll is filed, and New York Courts describes it as a lower-cost hearing process with a $30 fee.

Local tips

Use your town’s equalization rate correctly. A $10,000 assessment reduction in Ramapo is not the same as a $10,000 assessment reduction in Haverstraw because the towns assess at different fractions of market value.

Worked example using an actual Rockland county tax rate: Suppose a Clarkstown home is assessed at $169,200. At Clarkstown’s 2026 equalization rate of 21.15%, that assessment implies about $800,000 market value. If your evidence shows the home was worth $750,000, the corrected assessment would be about $158,625, a reduction of $10,575. The 2026 county levy assigned to Clarkstown was $38,069,910, and Clarkstown’s taxable assessed value for county apportionment was $4,267,563,891, which equals about $8.92 per $1,000 of assessed value for the county portion. County-only savings would be about 10.575 × $8.92 = $94 for the year. Your total savings may be much higher because school, town, sewer, refuse and special districts also use the assessment; use the combined rates on your actual tax bill for a complete estimate.

Do not miss exemptions while chasing an appeal. Basic STAR/STAR credit, Enhanced STAR, senior, disability and veterans exemptions can save more than a small assessment reduction. New York’s 2025 final STAR tables for Rockland show homeowner savings varying by town and school district, including amounts over $2,000 in several Rockland school districts.

Appeal value, not taxes. Bring comparable sales, not complaints about budgets. If the board sees a clean table of three similar sales adjusted for location, size, condition and date, your case is much stronger than a stack of tax bills.

When Are Property Taxes Due in Rockland?

County & Town taxes are paid to the Receiver of Taxes in each town from January 1 through March 31; payments are interest-free in January, carry 1% interest in February, and 2% interest in March; unpaid accounts are turned over to the County Commissioner of Finance as of April 1. Quarterly installment option for County & Town taxes is offered in Clarkstown, Haverstraw, Orangetown, Ramapo, and Stony Point with a 5% service charge; installments are due January 15 to the town Receiver, then April 15, July 15, and October 15 to the Commissioner of Finance. If a quarterly payment is missed, the unpaid balance becomes due plus 5% penalty and 1% interest per month until paid. The County also describes a separate installment agreement beginning May 1 for current taxes for qualifying taxpayers, with 20% down and the balance over 12 or 24 months with 12% annual interest.

This is not the same as the assessment appeal deadline above. The appeal deadline is your window to contest your assessed value; the payment due date is when the resulting tax bill must be paid. Missing one does not affect the other, but missing either has real consequences — one forfeits your right to appeal for the year, the other can trigger penalties and interest.

Source: https://www.rocklandcountyny.gov/departments/finance/tax-division

Property Tax Exemptions in Rockland

• STAR / School Tax Relief Program — New York homeowners whose property is their primary residence and who meet the STAR income rules; Basic STAR credit income limit is $500,000, while the closed Basic STAR exemption has a $250,000 income limit for existing exemption recipients. Enhanced STAR is for eligible seniors age 65 or older who meet the Enhanced STAR income limit.. Applies to school taxes only. Basic STAR is based on the first $30,000 of full value; Enhanced STAR is based on the first $88,500 of full value for the 2026-2027 school year. Yes. New homeowners and first-time applicants register with New York State for the STAR credit; the STAR exemption is closed to new applicants, but existing exemption recipients may continue if eligible. (Source: https://www.tax.ny.gov/pit/property/star/types.htm)
• Rockland County Senior Citizens Tax Exemption — Owners age 65 or older with limited income meeting Real Property Tax Law §467 and Rockland County Code requirements; Rockland’s code also covers a husband/wife ownership where one spouse is 65 or older, subject to the code’s conditions.. Graduated partial exemption from County taxation: 50% of assessed valuation for income of $50,000 or less, phasing down to 5% for income more than $57,500 but less than $58,400. Yes. Application forms are obtained from and filed with the Tax Assessor of the town in Rockland County. Apply by On or before the applicable taxable status date; New York State says most exemption applications are due by taxable status date, March 1 in most communities.. (Source: https://ecode360.com/41329644)
• Rockland County Partial Exemption for Homeowners With Disabilities — Residential real property owned by one or more persons with qualifying disabilities and limited income, including qualifying spouse/sibling ownership situations, as defined in Rockland County Code Article XI.. Graduated partial exemption from County taxation: 50% of assessed valuation for income of $50,000 or less, phasing down to 5% for income more than $57,500 but less than $58,400. Yes. Application must be filed annually with the appropriate assessor; proof of a permanent disability need only be submitted in the first year or when the disability is first determined permanent. Apply by On or before the appropriate taxable status date.. (Source: https://ecode360.com/9669545)
• Rockland County Alternative Veterans Exemption — Qualifying veterans and eligible family members under New York Real Property Tax Law §458-a, as adopted by Rockland County for County property tax purposes.. Rockland County increased the maximum exemption amounts to $75,000, $50,000, and $250,000 for the applicable wartime, combat, and disability components described in §458-a. Yes. File the applicable veterans exemption application with the local assessor. Apply by On or before the applicable taxable status date.. (Source: https://ecode360.com/9669539)
• Rockland County Volunteer Firefighters/Ambulance Workers Exemption — Enrolled members of an incorporated volunteer fire company, fire department, or voluntary ambulance service, or such member and spouse, residing in Rockland County, where the property is the applicant’s primary residence and other service/certification requirements are met.. Up to 10% of assessed value for County purposes, exclusive of special assessments. Yes. Application/certification must be filed with the applicable assessor’s office on State Board forms. Apply by On or before the taxable status date.. (Source: https://legislature.rocklandcountyny.gov/home/showpublisheddocument/2807/638290937708800000)

How to Look Up Your Property Record in Rockland

You can look up your property's official record at https://www.rocklandcountyny.gov/departments/planning/mapping-and-gis. Rockland County’s GIS Base Map Application lets users view/print maps with tax parcels and search by Tax ID or address; it also shows parcel district information such as election and political districts.