NYC’s Property Tax Hike and the Debate Over ‘Taxing the Rich’

New York City Mayor Zohran Mamdani has proposed a roughly 10% increase in property taxes as part of the city’s budget negotiations. This potential hike comes as Mayor Mamdani seeks state support for raising taxes on wealthier New Yorkers, and warns that property taxes may need to increase if the state doesn’t act. The debate highlights the complexities of local funding, the impact of property taxes on homeowners, and the ongoing discussion about equitable tax policies.

What Are Property Taxes?

Property taxes, or real estate taxes, are local taxes levied on real estate based on its assessed value. These funds primarily support schools and essential local government services, including sanitation, police and fire departments, parks, and street repairs. According to the Tax Foundation, in fiscal year 2022, property taxes accounted for 27.4% of total state and local tax collections in the United States – more than any other category of tax revenue. At the local level, property taxes comprised 70.2% of tax collections in 2022.

How Property Value Is Determined

Each city or county has an assessor’s office responsible for determining property values, typically based on what a property would sell for in an ordinary market transaction. For houses and condos, this often involves reviewing comparable sales. Assessors often rely on income data – rents, expenses, and operating income – for commercial buildings. The tax rate is then applied to the assessed value, expressed either in mills (dollars per $1,000 of assessed value) or as a percentage.

When Does Reassessment Happen?

The frequency of property reassessments varies significantly by jurisdiction. Some areas reassess annually, like Florida, where properties with homestead exemptions are reassessed every January 1, subject to statutory limits on increases. Others reassess every few years, such as Cook County, Illinois, which operates on a three-year rotating schedule. California’s Proposition 13 generally limits reassessments to ownership changes or new construction, with annual increases capped.

From 2020 through 2025, U.S. House prices climbed roughly 55% nationwide, increasing homeowners’ equity but also raising assessed values and, tax bills. Some states impose caps on annual increases to mitigate sharp spikes, such as California’s 2% cap and Florida’s cap at the lesser of 3% or inflation.

What If the Assessment Is Wrong?

If a property owner believes their assessment is inaccurate, they can typically contact the assessor’s office to correct factual errors. If that doesn’t resolve the issue, a formal appeal can be filed with a local board of assessment review, and potentially taken to court. Deadlines for appeals are often strict, ranging from 30 to 60 days from the assessment notice date.

Additional Relief Programs

Some states offer targeted property tax relief programs. Pennsylvania provides an income-based rebate for qualifying seniors, widows, and individuals with disabilities. Wisconsin administers a homestead credit that refunds a portion of property taxes to lower-income residents.

The Federal SALT Deduction

Property taxes impact federal income tax returns through the state and local tax (SALT) deduction. If taxpayers itemize deductions, they can deduct state and local taxes paid, including property taxes. However, the Tax Cuts and Jobs Act of 2017 capped the SALT deduction at $10,000 per year (or $5,000 for married couples filing separately). A temporary increase to $40,000 (or $20,000 for married filing separately) was enacted for 2025, with adjustments for inflation through 2029, before reverting to $10,000 in 2030 unless Congress acts.

Why the NYC Debate Matters

The debate surrounding New York City’s proposed property tax increase underscores the challenges of balancing local government funding with affordability for residents. Efforts to reduce or cap property taxes can strain local budgets, potentially leading to service reductions or future rate increases. As Mayor Mamdani seeks state support for taxing higher earners, the city faces the difficult decision of whether to raise property taxes as a last resort.