Updated September 2026. No 2026-27 rates are adopted, so Brooklyn bills run at the 2025-26 rates until the City Council and the Mayor set new ones. On the January 2026 tentative roll Brooklyn led the city twice, with the largest class 1 market value increase of any borough at 6.2 percent and the largest class 2 increase at 11.8 percent. New this cycle is the non-primary residence surcharge, first appearing on the bill due January 1, 2027, exemption deadline October 6, 2026. The surcharge, explained covers the notice behind it.

Brooklyn is Kings County, borough code 3 in every borough-block-lot number, and the city’s second largest tax roll. Its bills are built exactly like every other bill in New York City, which is the point: our primer on how NYC property tax works holds the arithmetic, and this page covers what changes here.

What is a Brooklyn property tax bill made of?

Five parts. Market value first, Finance’s estimate, not a sale price and often nowhere near one. Assessed value is that figure times the level of assessment, 6 percent in class 1 and 45 percent in classes 2, 3 and 4, with caps limiting how fast it moves. Exemptions come off to give taxable value, taxable value times the class rate is the tax, and abatements come off that.

Every Brooklyn lot carries a borough-block-lot number beginning with 3 (1 is Manhattan, 2 the Bronx, 4 Queens, 5 Staten Island): block 15828, lot 7501 becomes 3158287501, the key to every lookup below.

Is there a separate Brooklyn property tax rate?

No. Finance sets one rate per tax class citywide, and the class, not the borough, decides which applies: a two-family house in Bay Ridge and one in Riverdale pay the same class 1 rate. The borough changes the market value assigned, the class mix, and the neighborhoods whose sales and rents feed the models.

Those are the newest rates Finance publishes, tax year 2026, the fiscal year that ended June 30, 2026. The year before them ran 20.085, 12.500, 11.181 and 10.762 percent. A page quoting a firm 2026-27 rate today is quoting last year’s.

How does Finance value Brooklyn homes, co-ops, condos and rentals?

For the one-, two- and three-unit stock of Bay Ridge, Canarsie, Midwood and Flatbush, Finance uses statistical modeling of prices of similar properties sold nearby in the prior three years. Your own house need not sell, so a class 1 value jumps when a few nearby houses trade high.

Class 2 is different by law: state law mandates it be valued as income-producing, and requires co-ops and condos to be valued as if they were rentals even though they are not. For a larger Brooklyn rental, Finance models typical income and expenses for buildings similar in size, location, unit count and age, then applies a formula to that income to reach market value; class 4 runs on income earning potential and expenses. Owners of income-producing property assessed above $40,000 must file an RPIE, so a careless RPIE filing is a self-inflicted assessment.

Then the limits. A class 1 assessment cannot rise more than 6 percent a year or 20 percent over five; sub-classes 2a, 2b and 2c cap at 8 percent a year and 30 percent over five. Class 4 and class 2 buildings above ten units phase increases in at 20 percent a year, and one consequence catches owners every January: assessed value can climb in a year when market value falls.

What does the FY2027 tentative roll say about Brooklyn?

Citywide the roll put total market value at $1.659 trillion, up 5.4 percent, with taxable billable assessed value up 5.6 percent to $325.8 billion. Brooklyn led it. Class 1 homes here took the greatest market value increase of any borough, 6.2 percent. Brooklyn also took the largest class 2 market value increase, 11.8 percent, and the largest class 2 taxable billable assessed value increase, 11.1 percent; for rental buildings those widen to 12.0 and 14.2 percent, and Brooklyn retail led on assessed value at 7.6 percent. Scale explains part of it: Brooklyn holds 343,648 of the 1,114,669 lots on that roll, 30.8 percent of the city and second only to Queens.

Each condo unit is its own tax lot, and in the Finance assessment file on Open Data 82,692 Brooklyn lots are condo units. In that file, 45,401 of the borough’s 102,062 class 2 records sit in the capped sub-classes, and a capped property carries an effective market value on its notice: an appeal must beat that figure, not the front-page market value. Our guide to the Notice of Property Value reads it line by line.

How do you run a Brooklyn property tax search or pull the records?

Three places, three questions. The Property Information Portal holds the assessment record for any lot, including next year’s tentative value. Finance’s Property Tax Public Access portal searches by address or BBL for bills, notices, tax class and exemptions. For deeds and mortgages, ACRIS covers Brooklyn from 1966 to the present and returns a BBL from an address.

Paper has one Brooklyn quirk. The City Register’s Kings County office sits on the 2nd floor of 210 Joralemon Street, but the Brooklyn Real Property books sit in the Queens business center. Book an appointment before visiting.

When are Brooklyn property taxes due?

Miss the grace period and interest runs from the original due date. Paying early earns a discount: 0.50 percent of the full year’s tax if you pay the whole year by the July due date, 0.33 percent on the last three quarters if you pay the remainder in October, and 0.17 percent on the last six months if you pay the balance in January. The final roll publishes in May, and RPIE-2025 was due June 1, 2026.

How does a Brooklyn owner appeal an assessment?

Two agencies, two filings, not interchangeable. Finance handles a wrong description or estimated market value on a Request for Review, due March 15 for class 1 and April 1 otherwise, and says plainly that it is no substitute for appealing the assessed value: the Finance Department appeal track.

The assessment itself goes to the New York City Tax Commission, an independent agency that can cut the assessment, change the tax class and adjust exemption status. An Application for Correction must be received by March 1 for classes 2, 3 and 4, or March 15 for class 1, and late ones will not be granted. The form follows the property, TC108 for class 1 and TC101 or TC109 for class 2 and 4.

Brooklyn owners need not travel to One Centre Street: the Commission also takes the application at the Brooklyn Business Center, 210 Joralemon Street, 8:30am to 4:30pm Monday to Friday, though the floor is worth verifying on Finance’s business center page first. Past the Commission the path runs to court, or tax certiorari. The sequence sits in our guide to the appeal process, and we file the Tax Commission appeals.

Which exemptions and abatements matter most in Brooklyn?

An exemption cuts assessed value before the tax is calculated; an abatement cuts the tax after. The mix leans differently here than in Manhattan.

• STAR. Finance no longer administers it; STAR and Enhanced STAR run through New York State.
• Co-op and condo abatement. Unit owners cannot apply; the board applies for the whole class 2 development between August 3 and February 15. The benefit runs from 28.1 percent of the tax down to 17.5 percent as average assessed value rises past $60,000.
• 421-a. Brooklyn is the centre of gravity: 21,907 of the 42,246 lots citywide carrying a 421-a exemption on the FY2026/27 final roll are here, more than the other four boroughs combined, covering 92,365 residential units. See what 421-a is.
• 485-x. The successor covers new buildings and conversions of six or more units commencing between June 2022 and June 2034. Brooklyn holds 11 of the 14 neighborhood tabulation areas the program names, four in Zone A (0101 to 0104) and seven in Zone B (0201 to 0204, 0601, 0602, 0801), where the affordability requirements run steepest. See what 485-x is.
• J-51. An exemption and abatement for renovating an apartment building, with the benefit varying by location and type of improvement. It fits Brooklyn’s older walk-up stock. See what J-51 is.
• ICAP. Abatements of up to 25 years for industrial and commercial buildings built, modernized or improved, on spend of 30 percent of taxable assessed value. Parts of Brooklyn carry additional benefits, as do parts of every other borough.
• SCHE and DHE. The senior and disabled homeowner exemptions both cap combined income at $58,399, cannot be held together, and run a September 28 to March 15 window.

Running the other way is the non-primary residence surcharge, effective May 28, 2026, on homes valued above $5 million and units at $1 million or more: 0.8 to 1.3 percent of market value for homes, 4.0 to 6.50 percent for units. A primary residence is spared, but the exemption must be claimed by October 6, 2026. The wider map is in NYC tax abatements explained.

What else do Brooklyn owners ask?

What is the Brooklyn property tax rate?

The same as the rest of the city, because the rate is set per tax class, not per borough: 19.843 percent for class 1 and 12.439 for class 2 in tax year 2026.

How do you look up a Brooklyn property tax bill?

Search by address or BBL on Finance’s Property Tax Public Access portal, which holds the bills, notices, tax class and exemptions. A Brooklyn BBL always begins with a 3.

Are property taxes higher in Brooklyn than elsewhere in New York City?

The rate is identical, so any difference comes from market value, tax class and exemptions, not geography. Brooklyn did move fastest this cycle, leading the city on class 1 market value at 6.2 percent and class 2 at 11.8 percent.

Where do you file a Brooklyn property tax appeal?

At the Tax Commission, One Centre Street, Room 2400, or at the Brooklyn Business Center, 210 Joralemon Street, by March 1 for classes 2, 3 and 4 and March 15 for class 1. Deadlines cannot be extended.

How do you get Brooklyn property tax records and deeds?

ACRIS holds Brooklyn property records and document images from 1966 to the present, and returns a BBL from an address.

What does it cost to ask MGNY?

Nothing. A real person answers at (212) 343-1111, right away, and the consultation is free. You engage us only if you want the work handled for you. MGNY has worked NYC property tax since 2008, with $50M+ in tax refunds secured for owners, 900+ developments with tax abatements secured and $30B+ represented in appeals.

Our sibling guides run the same ground for the Bronx, Queens, Manhattan and Staten Island.

Sources, all read September 4, 2026: NYC Department of Finance pages on tax rates, assessed and market value, assessment definitions, the Notice of Property Value, challenging an assessment, due dates, RPIE, the Brooklyn Business Center, ACRIS and the benefit programs; the Finance press release of January 15, 2026 on the Fiscal Year 2027 tentative roll; the Finance 421-a benefits page and its FY 2026/27 workbooks; the Finance FY2027 tentative roll summary workbook; the NYC Tax Commission on challenging the Notice of Property Value; HPD on 485-x; the City Planning PLUTO data dictionary; and NYC Open Data dataset 8y4t-faws. MGNY Consulting is a private consulting firm and is not affiliated with the NYC Department of Finance or the NYC Tax Commission.

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