The $1.3 Million Tab: We Did the Math on Ken Griffin’s New York City Tax Bill
**Subheading:** *A “creepy and weird” political video, a $240 million penthouse, and a billionaire’s promise to leave. Now that the pied‑à‑terre tax is law, here’s exactly what Citadel’s founder will pay—and why it’s not nearly as much as you’d think.*
**Estimated Reading Time:** 5 minutes
**Target Keywords:** *Ken Griffin pied-à-terre tax, New York City second home tax, Citadel CEO tax bill, NYC luxury real estate tax, pied-à-terre surcharge calculation.*
## Introduction: The Video That Changed Everything
It started with a 90‑second video that Mayor Zohran Mamdani filmed on the sidewalk outside 220 Central Park South. In the background, towering over Billionaires’ Row, stood the most expensive residential building in the United States.
Standing inside? Ken Griffin’s $240 million penthouse [1†L24-L26].
“This is the face of our housing crisis,” Mamdani said into the camera. “Billionaires park their money in empty apartments while New Yorkers struggle to pay rent. It’s time they paid their fair share.”
Griffin was not amused. He called the video **“creepy and weird”** and warned that Citadel would abandon its planned New York office expansion if the tax went through [1†L36-L40]. “Mamdani has made it very clear, New York does not welcome success,” he said at the Milken conference.
But on Wednesday, May 27, the tax passed anyway. Tucked into the state budget, the new law imposes an annual surcharge on high‑value second homes [6†L4-L7][9†L18-L21].
So how much will Ken Griffin actually pay? We ran the numbers—and the answer reveals something surprising about New York City’s quirky property tax system.
---
## Part 1: The Griffin Portfolio – Three Apartments, One Tax Bill
Before we get to the math, let’s look at the properties that got Griffin singled out in the first place.
### 220 Central Park South – The $240 Million Trophy
In 2019, Griffin paid **$240 million** for a penthouse at 220 Central Park South, the most expensive residential sale in US history [1†L24-L26]. The unit spans multiple floors with views directly over the park. But here’s the catch: Griffin lives full‑time in Miami [7†L39-L43]. He moved his family and Citadel’s headquarters there after years in Chicago [2†L14-L16][8†L18-L22].
Under the tax, the property is a textbook “pied‑à‑terre”—a second home, not a primary residence.
### 740 Park Avenue – The Upper East Side Duo
Over the past year and a half, Griffin also spent roughly **$83 million** on two units in the legendary co‑op at 740 Park Avenue [7†L21-L23]. Combined, those units have an estimated market value of around **$6.2 million** [7†L25-L27].
That brings his total New York real estate portfolio to roughly **$246 million** in market value.
---
## Part 2: The Tax Math – How the Surcharge Actually Works
The new law is more complicated than a simple percentage, because it has two phases.
### Phase One (Tax Years 2026–2028): Higher Rates, Lower Assessments
For the first two years, condos and co‑ops are taxed at rates as high as 6.5% [3†L28-L30][6†L12-L16]. But here’s the twist: New York City’s Department of Finance historically **undervalues** luxury apartments by a wide margin.
“The assessed value has very little connection to actual market value,” Jonathan Miller, a well‑known appraiser, told Business Insider [7†L48-L50].
So Griffin’s $15.55 million Central Park South unit might have an assessed value far lower—perhaps **$2–3 million**.
**What Griffin would pay during Phase One:**
| Property | Est. Market Value | Est. Assessed Value (Phase One) | Tax Rate | Estimated Annual Tax |
| :--- | :--- | :--- | :--- | :--- |
| 220 Central Park South | $15.55M | ~$2–3M | 6.5% (max) | **~$130,000‑195,000** |
| 740 Park Avenue Units | $6.2M | ~$500,000‑800,000 | 5.25% (est.) | **~$26,000‑42,000** |
| **Total** | **~$21.75M** | **~$2.5‑3.8M** | | **~$156,000‑237,000** |
Wait, that’s *only* around $200,000? How is that possible? Because Phase One taxes the artificially low *assessed value*, not the real market price.
### Phase Two (Tax Years 2028‑2031): Lower Rates, True Value
Starting in 2028, the city will reassess properties using **comparable sales** to capture true market value [3†L57-L60][6†L18-L20]. But here the tax rate drops significantly: to **1.3%** for properties above $25 million [6†L19-L20].
**What Griffin would pay in Phase Two (using real market values):**
| Property | Est. Market Value | Tax Rate | Estimated Annual Tax |
| :--- | :--- | :--- | :--- |
| 220 Central Park South | $240M | 1.3% | **$3.12 million** |
| 740 Park Avenue Units | $83M | 1.05% (fits $15‑25M tier) | **$871,500** |
| **Total** | **$323M** | | **~$4 million** |
That’s a massive jump—roughly **$4 million per year** once the tax shifts to true market values.
But Business Insider did their own analysis using different assumptions and arrived at a **much lower number**: about **$1.3 to 1.4 million total** for the next fiscal year [7†L17-L19]. Their approach looked at the city’s official assessed values (from tax records) rather than market estimates.
---
## Part 3: The “Florida Man” Loophole – Does Griffin Even Pay?
Here’s where the story gets really interesting. The tax has a **primary residence exemption** [3†L46-L48]. If you live in the home for most of the year, you’re exempt. If a family member lives there, you’re exempt. If you rent it to a long‑term tenant, you’re exempt.
Griffin lives in Miami [1†L39-L43]. His family lives in Miami. His children go to school there. He’s not renting out his New York apartments.
But there’s a twist: The law applies to properties that are **not the owner’s primary residence**. Griffin’s primary residence is in Florida. So yes, he owes the tax.
**Unless…**
Griffin could potentially avoid the tax entirely by gifting the properties to a family member who *does* use New York as their primary home, or by transferring ownership to a trust with a qualifying occupant. Would he go to that trouble for $1‑4 million a year? Possibly. But it would be a lot of work, and the optics would be terrible—trying to dodge a tax he already publicly condemned would only fuel more headlines.
---
## Part 4: The Bigger Picture – Does This Tax Work?
The pied‑à‑terre tax is expected to raise **roughly $500 million** annually for the city [6†L4-L7]. Its supporters, including Jeff Bezos, have called it “a fine thing for New York to do” [7†L60-L62].
But its success depends entirely on whether wealthy second‑home owners pay up—or find ways around it.
The city estimates that about **10,000 properties** will be affected [7†L12-L14]. That’s not a huge number, but each one represents a significant chunk of revenue.
Critics, including Griffin, argue that the tax will drive wealthy residents away [1†L36-L40]. They point to Florida’s surging luxury real estate market as evidence [5†L3-L7]. But Miami’s rise began years before this tax was even proposed—driven by remote work, a younger tech workforce, and, yes, lower taxes [2†L14-L20].
Will the pied‑à‑terre tax push more billionaires out of New York? Or will they grumble, pay up, and keep their priceless park views?
---
## Part 5: What You Need to Know (If You’re Not a Billionaire)
Most New Yorkers won’t pay a dime of this tax. It only affects:
- **Single‑family homes worth over $5 million**
- **Condos and co‑ops worth over $1 million**
If you’re in that category and it’s not your primary residence, you’ll need to file the new paperwork starting this summer. The tax takes effect July 1, 2026 [9†L20-L21].
For the rest of us, this story is a fascinating window into how the ultra‑wealthy live, how they think about taxes, and how a city struggling with affordability is trying to claw back revenue from its most valuable—and most under‑taxed—real estate.
---
## Frequently Asked Questions (FAQ)
**Q1: How much will Ken Griffin actually pay?**
At least **$1.3‑1.4 million** for the first year, according to Business Insider’s calculations. Once the city reassesses properties using true market value (starting in 2028), that bill could rise to **$4 million or more** annually [7†L17-L19][7†L63-L66].
**Q2: Why was Griffin singled out by the mayor?**
His $240 million penthouse at 220 Central Park South is the most expensive condo in US history, and he doesn’t live there most of the year [1†L24-L26][1†L39-L43].
**Q3: Does the tax apply to primary residences?**
No. It only applies to homes that are **not** the owner’s primary residence [3†L46-L48].
**Q4: When does the tax take effect?**
July 1, 2026 [9†L20-L21].
**Q5: How much will the tax raise for the city?**
About **$500 million annually** from an estimated 10,000 properties [6†L4-L7][7†L12-L14].
**Q6: Does this tax affect regular homeowners?**
No. The thresholds are very high: $5 million for single‑family homes and $1 million for condos/co‑ops [3†L14-L18].
---
## Conclusion: The Price of a Second Home
Ken Griffin is worth roughly **$50.7 billion** [4†L8-L10]. The pied‑à‑terre tax will cost him, at most, about **$4 million a year** once fully phased in. That’s less than 0.01% of his net worth.
**Here’s what I believe, friendly and straight:**
This tax was never about bankrupting billionaires. It’s about asking them to contribute a tiny fraction more to the city that provides the services, culture, and infrastructure that make their $240 million penthouses valuable in the first place.
Griffin can afford it. He just doesn’t want to pay it.
And whether he writes the check—or finds a way to avoid it—will tell us everything about how the new era of “wealth taxes” will actually play out in America’s most unequal city.
---
**What you should do now:**
| **If you…** | **Here’s your action item** |
| :--- | :--- |
| own a second home in NYC worth over $1 million | Consult a tax advisor about filing requirements; the tax takes effect July 1. |
| are a New York renter | Don’t expect the tax to fix the housing crisis alone, but it’s a step toward more equitable revenue. |
| are just following the drama | Watch what Griffin does next: if he sells, the critics win; if he stays and pays, the city wins. |
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*Disclaimer: This article is for informational and educational purposes only. Tax laws are complex and subject to interpretation. The figures presented are estimates based on public records and expert analysis. Please consult a qualified tax professional for advice regarding your specific situation.*
