The absurd math of New York property taxes

Published March 13, 2026

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New York City has a reverse tax bracket. The less valuable the home, the higher the effective rate. The more expensive the property, the more the system bends over backward to understate its value and shrink its tax bill.

Sweep from low-value homes to the luxury tail, then flip between today's system and the proposal.

This has been sitting in plain sight for years. The Furman Center documented the undertaxation of the city's most valuable properties in 2013. In 2016, SITU turned Section 581 into a visual indictment. The scandal is not that nobody knew. The scandal is that the evidence kept piling up and the policy stayed in place.

That means the real debate is not status quo versus progressive reform. The status quo is already progressive in reverse. The fix is conceptually simple: tax residential property off real market value, get Albany to end Section 581's rental fiction (the state rule that forces condos and co-ops to be valued like rental buildings rather than what buyers actually pay), protect primary residents with a homestead exemption and a circuit breaker, then push the highest rates to the luxury tail if lawmakers want more progressivity.

A reverse bracket hiding in plain sight

New York already has a progressive property tax. It is just progressive in the wrong direction.

The reverse bracket

The Commission's Fiscal Year 2021 model for primary resident owners is blunt. Parcels under $100,000 carry a median effective tax rate of 1.47 percent. Parcels above $10 million carry 0.46 percent. Inside class 1 homes the pattern is similar: properties under $150,000 sit at 1.26 percent, while homes above $10 million sit at 0.51 percent.

The rental fiction

Section 581 is the mechanism. It forces condos and co-ops to be valued as if they were rental buildings instead of owner assets trading on the open market. Rental buildings are priced off income streams. Trophy condos are priced off scarcity, status, and location. Force the second into the first and the tax base collapses.

The Commission found that the median Department of Finance value captures 53 percent of sales-based market value for condos under $100,000, but only 12 percent for condos above $10 million. The median condo over $10 million pays a 0.50 percent effective tax rate. A condo in the $750,000 to $1 million band pays 0.84 percent. The Comptroller shows the same distortion with a concrete example: a $34.4 million condo taxed at 0.39 percent today would pay 0.94 percent under sales-based valuation.

Move up the condo price ladder and watch how much value disappears before the tax bill is even calculated.

Rent is in the tax bill

The renter argument is the sleeper hit. On the Commission's apples-to-apples sales-based metric, large rentals carry a median effective tax rate of 1.53 percent. That is far above 1-3 family homes at 0.83 percent, condos at 0.74 percent, and co-ops at 0.93 percent.

The city spent years patching around this with abatements like 421-a because the underlying structure punished rental housing. A reform that lowers the tax wedge on ordinary rentals is not anti-renter. It removes a cost that is already sitting inside rent.

What is proposed, and why it still stops short

The proposal on the table is mostly cleanup. Put 1-3 family homes, condos, co-ops, and small rentals in one residential class. Use sales-based market value. End fractional assessments. Replace growth caps with five-year smoothing. Then add two owner protections: a homestead exemption for primary residents and a circuit breaker, which cuts taxes when the bill rises above a fixed share of income.

Under structural reform alone, every parcel in the new residential class converges to a pre-exemption effective tax rate of 0.814 percent. Under the Commission's graduated homestead model plus the circuit breaker, the median primary-resident parcel under $100,000 falls from 1.47 percent to 0.35 percent, the $750,000 to $1 million band falls from 0.83 percent to 0.67 percent, and the $10 million-plus tier rises from 0.46 percent to 0.96 percent. Only primary-resident parcels above $2.5 million end up with a higher median rate than today.

That is better than the current system, but it is still more defensive than it should be. It cleans up a broken assessment regime and adds relief for owner-occupants. What it still does not do is state the obvious principle in plain language: high-value luxury property should face the highest effective rates on purpose. New York should have had that structure many years ago instead of hiding behind fake valuations, caps, abatements, and class boundaries.

At this point the usual objections arrive: capital flight, tax-burdened long-time owners, rents going up. The official models and the best migration evidence run the other way.

What Changes

Middle-value owners stop subsidizing luxury property. Renters stop carrying a heavier tax load than high-value owners.

The usual objections

Wealth flight is the weakest one. Cristobal Young and Charles Varner found that New Jersey's millionaire tax produced a loss of less than one-tenth of 1 percent of the stock of millionaires. Young and Ithai Lurie later found similarly small migration effects in IRS data. And real estate still cannot leave town.

The other objection is the gentrifying homeowner. That is what the owner protections are for. The homestead exemption is limited to primary residents and phases out for high incomes. The circuit breaker reduces taxes for owners whose bill exceeds 10 percent of income. Reform is not supposed to treat paper appreciation as cash flow.

The honest version of the debate is simpler than the lobby makes it sound. The current system hides a luxury subsidy inside the tax bills of ordinary owners and the rent bills of ordinary tenants. Start with real market valuation. Get Albany to end Section 581. Protect primary residents. Then make the top of the schedule explicitly progressive instead of hiding regressivity behind bad math.