New York City Mayor Zohran Mamdani has framed his $127 billion preliminary budget for Fiscal Year 2027 as a direct challenge to Governor Kathy Hochul: either Albany approves new taxes on millionaires and profitable corporations, or city homeowners face a property tax increase of nearly 10%. That binary choice, laid out in the budget released this week, has drawn warnings from state fiscal analysts about volatile revenue assumptions and spending risks that could widen the gap between what the city needs and what it can afford.
A Two-Path Budget With One Clear Target
Mamdani’s preliminary plan puts the pressure squarely on Albany by proposing two mutually exclusive revenue tracks. The first would raise personal income taxes by 2% on approximately 33,000 New Yorkers earning over $1 million and increase corporate taxes on the most profitable firms, while also seeking to “end the drain” of the city-to-state fiscal imbalance. The second track, triggered only if the state refuses, assumes a 9.5% property tax rate increase that would generate $3.7 billion in FY2027. By packaging both options in the same document, Mamdani has effectively told Albany that inaction carries a political cost: millions of homeowners paying more because roughly 33,000 high earners were spared.
The strategy amounts to a calculated escalation. Rather than quietly absorbing inherited budget gaps through service cuts or reserve drawdowns alone, the mayor is forcing a public debate about who bears the fiscal burden. The budget does include a savings plan of $1.77 billion across two fiscal years and identifies reserve draws from the Rainy Day Reserve Fund and Retiree Health Benefit Trust, but those measures alone cannot close the shortfall. That leaves the millionaire tax or the property tax hike as the decisive variable, and Mamdani has made clear which one he prefers. As reporting in the business press has underscored, the warning of a nearly double-digit property-tax increase is explicitly tied to whether Albany signs off on higher levies for the wealthy and large corporations.
Dueling Gap Estimates Cloud the Math
How deep the city’s fiscal hole actually runs depends on who is counting. The prior administration’s November 2025 financial plan pegged the FY2026 budget at $118.2 billion and projected a FY2027 gap of $4.7 billion, according to city budget documents. But independent watchdogs quickly flagged those numbers as too optimistic. City Comptroller Brad Levine projected a $2.2 billion shortfall in FY2026 and a $10.4 billion gap in FY2027, pointing to underestimates in areas such as asylum-seeker services, overtime, and education. State Comptroller Thomas DiNapoli’s office similarly warned that potential gaps could approach approximately $10 billion in FY2027 and grow to roughly $13.6 billion by FY2029, driven by slowing economic growth and rising costs in social services, transit subsidies, and labor contracts.
Those competing estimates matter because they shape how credible Mamdani’s budget arithmetic looks. The preliminary plan benefits from an upward revision of $7.3 billion in tax revenue compared to the November baseline, according to the mayor’s office. DiNapoli’s review of the new plan put the increase even higher, at $8.6 billion above prior projections, or more than 10% higher than the November estimate. Whether the true revision is $7.3 billion or $8.6 billion, both figures reflect a significant improvement in the revenue picture. Still, the state comptroller flagged risks tied to the planned property-tax rate increase and to reliance on cyclical revenue sources like Wall Street bonuses, cautioning that a downturn in financial markets or real estate could quickly reopen large gaps that the preliminary budget assumes will be closed.
Who Already Pays and What a New Levy Would Mean
Critics of higher taxes on top earners often argue that the wealthy already carry a disproportionate share of the state’s tax load, and the data supports that claim in raw terms. According to the state’s personal income tax statistics, millionaires paid 41.0% of all personal income tax in tax year 2023, while the top 200,000 taxpayers accounted for 49.8%. By contrast, the lower 50% of filers paid just 0.2%. Those figures give opponents of a new surcharge a ready talking point: a relatively small group already funds nearly half of New York’s income tax collections, and further increases could encourage high earners to change their residency or shift income in ways that erode the tax base…