New York City Mayor Zohran Mamdani has spent his first 100 days in office rolling out a cascade of tax proposals, income, corporate, property, and estate, that would collectively extract at least $23 billion from New Yorkers, according to a New York Post tally of the proposals and their projected revenue figures.
The mayor campaigned on a promise that his agenda could be funded by taxing millionaires and the largest corporations. Once in office, he shifted the justification. The new pitch: New York City faces a budget shortfall he initially pegged at $12 billion, later revised down to $5.4 billion. The solution, in every case, was the same, more taxes.
What followed was a rapid-fire series of proposals that drew swift backlash, forced at least one embarrassing retreat, and left even sympathetic observers questioning whether Mamdani's City Hall knows what it is doing.
Mamdani called for increasing New York City's income tax rate by 2 percentage points for residents earning $1 billion or more. He also proposed raising the corporate tax rate to 10.8% for financial sector firms and 10.62% for non-financial companies. City Hall said the two proposals combined would raise $4.5 billion.
Both increases require action from Albany. City Hall circulated a wish list of tax hikes with state lawmakers, and Democratic leaders in the state Assembly and Senate threw support behind the push in their symbolic budget proposals.
Governor Kathy Hochul, herself a Democrat seeking re-election in November, has made clear she opposes soaking the rich this year. That left Mamdani's income and corporate tax plans dead on arrival in the near term, no matter how much support they enjoyed in the legislature's messaging documents.
When Albany balked, Mamdani reached for a bigger lever. He unveiled a $127 billion budget proposal, roughly $5 billion higher than the previous year's budget, Fox News reported, and delivered an ultimatum to Hochul: approve higher taxes on the wealthy and corporations, or he would impose a nearly 9.5% property tax increase citywide.
City Hall officials said the property tax proposal would raise an estimated $3.7 billion a year from more than 3 million residential units. Those units, officials acknowledged, are typically owned by New Yorkers earning about $122,000 a year, hardly the billionaire class Mamdani invoked on the campaign trail.
The backlash came fast. Mamdani has since all but dropped mention of the property tax hike. The episode became a case study in political miscalculation, not just bad policy but bad execution.
Pollster Evan Roth Smith of Slingshot Strategies did not mince words about the rollout:
"The way he rolled out this unpopular property tax thing, it was one of the worst communication failures. Was he for it? Against it?"
Smith added that Mamdani "never sold it to the council or the public, and it's been impressive how quickly it fell apart and how it was self-inflicted around the budget and property tax increase. He failed to articulate what he wanted to do."
Mamdani himself tried to walk back the threat with a flat denial. "I do not want to raise property taxes," he said, a statement difficult to square with the budget document his own office produced.
The pattern of Democrats publicly demanding one thing while their actions point in the opposite direction has become a recurring theme in American politics. Mamdani's property tax reversal fits the mold perfectly.
Perhaps the most aggressive proposal in Mamdani's first 100 days was his plan to overhaul New York's estate tax. He floated slashing the exemption threshold from $7 million to $750,000 and raising the top rate from 16% to 50%. Officials projected the change would generate $4 billion a year.
The math matters. A $750,000 threshold does not target the "wealthiest New Yorkers" Mamdani claims to be going after. As Newsmax noted, average home values in places like Staten Island, Queens, and Westchester hover near or above that level. Ordinary homeowners, family farms, and small businesses would fall squarely within the new tax's reach, and the tax would apply to the entirety of the estate, not just the amount above the threshold.
Mamdani framed the question in familiar progressive terms:
"When faced with this crisis, the question is who should pay these taxes? I believe that it should be the wealthiest New Yorkers, the most profitable corporations. I believe that they can afford to pay a little bit more."
A "little bit more" is a curious way to describe a proposal that would triple the estate tax rate and drop the exemption by more than 89%.
The combined revenue projections tell the story: $4.5 billion from income and corporate taxes, $3.7 billion from the property tax hike, and $4 billion from the estate tax overhaul. That alone exceeds $12 billion, and the Post's accounting of the full suite of proposals reaches at least $23 billion.
Meanwhile, Mamdani's spending appetite shows no sign of restraint. His administration publicly backed a nurses' strike at Mount Sinai, NewYork-Presbyterian, and Montefiore hospitals involving nearly 15,000 workers. The nurses are seeking raises that could push average salaries past $200,000, up from current averages of roughly $162,000 to $165,000, the Washington Free Beacon reported.
Health policy analyst Bill Hammond warned that the added pay and staffing demands would increase costs for insurance premiums, employers, and taxpayers. "They shouldn't pretend like the money's coming out of the air," Hammond said. "Whose affordability are we talking about?"
That question applies well beyond hospital labor negotiations. Mamdani brands his agenda an "affordability" platform, yet every proposal he has advanced in 100 days involves taking more money from the people who live and work in the city.
Andrew Kirtzman, founding partner and CEO of KSX Communications, offered a measured but telling assessment of the new mayor's performance:
"He's a very smart leader who seems comfortable in the job, but who has made a host of rookie mistakes that resulted from inexperience, threatening an improbable property tax hike, and needlessly attacking a city council speaker he'll need."
That city council speaker is Julie Menin, a moderate Manhattan Democrat whom Mamdani accused of preferring cuts to city services over his tax plans. Picking a public fight with the person who controls the legislative calendar in your own city is not a sign of strategic confidence. It is a sign that ideology is running ahead of governance.
New York's broader political landscape offers Mamdani little cover. Governor Hochul opposes his tax plans in an election year. And the national trend lines for Democrats are not encouraging, with progressive governance under scrutiny from coast to coast.
Mamdani entered office telling New Yorkers the bill would go to billionaires and mega-corporations. Within weeks, his own budget documents showed the property tax burden landing on households earning $122,000. His estate tax plan would hit families whose primary asset is a home worth three-quarters of a million dollars, a figure that barely buys a two-bedroom apartment in much of the city.
The budget shortfall itself shrank by more than half, from $12 billion to $5.4 billion, without a clear public explanation of what changed. The tax proposals did not shrink accordingly. The revenue targets stayed enormous. The rhetoric stayed fixed on the rich. The actual impact kept drifting downward toward the middle class.
This is the familiar arc of progressive fiscal policy: promise the burden falls on the few, design the mechanism so it falls on the many, and when challenged, accuse critics of wanting to cut services. Mamdani followed the script almost to the letter, down to the kind of political maneuvering New Yorkers have grown weary of from their elected officials.
Fox News reported that Mamdani himself described the city as "firmly within a budget crisis" and warned of "painful decisions of last resort" if Albany did not deliver. But the pain he proposed was not a reduction in the city's spending. It was an increase in what residents owe.
Democrats who hold every lever of power in New York City and Albany created the spending commitments that produced this shortfall. Now their newest mayor wants the same taxpayers who endure the consequences of that spending to cover the bill, and calls it fairness.
One hundred days. Twenty-three billion dollars in proposed new taxes. A property tax retreat. An estate tax plan that would reach deep into the middle class. And a budget that grew by billions anyway. If this is what the first hundred days look like, New Yorkers may soon be looking for the exits, just like voters in other blue strongholds watching progressive governance up close.
When a politician says "a little bit more," check your wallet. In New York, that phrase now comes with a $23 billion price tag.