Your NYC Property Tax Bill, Decoded: Bill Anatomy, J-51, 421-a, and the Co-op/Condo Abatement (May 2026)
A plain-English walkthrough of how to read your NYC property tax bill in May 2026 — what each line means, where exemptions show up, and how the J-51, 421-a, and co-op/condo abatement programs actually reduce what you owe. Includes Department of Finance phone numbers, current filing deadlines, and the exact form names.
NYC Real Estate Transfer Tax 2026: RPTT, Mansion Tax & TP-584-NYC Explained

Plain-English breakdown of NYC RPTT rates, the NY State real estate transfer tax, the mansion tax, NYC-only supplemental rates, exemptions, 30-day filing deadlines, Form NYC-RPT, and Form TP-584-NYC (rev. 6/25). Includes a worked $1.8M Brooklyn condo example and verified phone numbers for NYC DOF and NYS Tax.
NYC Property Tax Classes 1-4 Explained: FY2026 Rates, Assessment Ratios, and Which Box Your Property Falls Into

FY2026 NYC property tax rates by class — 19.843% (Class 1), 12.439% (Class 2), 11.108% (Class 3), 10.848% (Class 4) — plus assessment ratios, caps, key forms, and DOF phone numbers. Verified against nyc.gov on May 1, 2026.
How to Challenge Your NYC Property Tax Assessment: A Step-by-Step Guide to Filing a Tax Commission Appeal
If your NYC property is over-assessed, you have the right to challenge it. Here is the complete step-by-step guide to filing an appeal with the NYC Tax Commission — which forms to use, deadlines to know, and what happens after you submit.
Your NYC Property Tax Bill Decoded: J-51, 421-a, and the Co-op/Condo Abatement Explained
If you own a home, co-op, or condo in New York City — or rent in a building that carries one of these programs — your property tax bill may show line items that reduce your assessed tax before the final amount is calculated. Those line items are called abatements and exemptions, and they can […]
STAR and Enhanced STAR in NYC: How to Enroll, Renew, and Make Sure You’re Getting the Right Benefit in 2026
A plain-English guide to STAR and Enhanced STAR enrollment, renewal, and income limits for NYC homeowners in 2026. Covers Basic STAR, Enhanced STAR for seniors, the 2026-2027 income limits ($110,750), how to register online via the Homeowner Benefit Portal, and how to switch from the old exemption to the credit.
NYC Mortgage Recording Tax Explained: What Buyers Actually Pay at Closing in 2026 (Plus Every Other Closing Tax in One Place)
If you are buying a home, condo, or co-op in New York City, the mortgage recording tax is one of the largest line items on your closing statement. This 2026 guide explains what you actually pay, who pays it, how to compute it from your loan amount, every other closing tax that hits a NYC buyer, and the form numbers and phone numbers to call if something looks wrong.
NYC Real Estate Transfer Tax: What Sellers and Buyers Actually Pay (2026 Guide to RPTT, NYS Transfer Tax, and the Mansion Tax)
A plain-English walkthrough of the three transfer taxes that hit every NYC closing — the city RPTT, the NYS basic transfer tax, and the mansion tax — with the exact rates, forms (NYC-RPT and TP-584), filing deadlines, and the phone numbers to call when something goes wrong.