Short Answer

Both the model and the market expect Mamdani to tax luxury second homes, with no compelling evidence of mispricing.

1. Market Behavior & Drivers

This prediction market shows a strong and consistent upward trend, opening at an 80% probability and climbing to a current price of 91%. The market sentiment has been bullish on a "YES" resolution from the start, likely because the market opened after the initial tax proposal was introduced in mid-to-late April. The most significant price movement occurred between May 5 and May 8, when the probability jumped from 83% to 91%. This sharp increase in perceived likelihood appears to be a direct reaction to reports of a tentative budget deal being set for May 7, a key development suggesting the proposal is advancing through the legislative process.
The trading volume provides further insight into market conviction. While initial trading established the 80% price point as a firm support level, recent volume has dropped to zero. This lack of recent trading activity at the high 91% probability suggests that a strong consensus has been reached. Traders appear confident in the current price, indicating a widespread belief that the tax will be implemented. The combination of the price surge following positive news and the subsequent low volume points to a market that perceives the "YES" outcome as highly probable.
  • Mamdani's pied-à-terre tax successfully passed New York's budget process.
  • The tax targets luxury NYC second homes valued over $5 million.
  • Governor Hochul announced a proposal for the pied-à-terre tax.
  • Independent forecasts suggest revenue may be less than the $500M projection.
  • New York legislative leaders appear supportive of property tax reforms.

Who Wins and Why

Outcome Market Model Why
Yes 91.0% 92.2% Mamdani is expected to tax luxury second homes to address wealth disparities and fund public programs.

Current Context

New York City proposes a luxury second-home tax for non-residents. This "pied-à-terre" tax targets approximately 13,000 properties in New York City valued over $5 million and owned by non-residents, with tiered rates still under discussion [1][2][3]. The proposal was introduced between April 15-20, 2026, and a tentative budget deal is set for May 7, 2026, although it still requires full legislative approval [4][5][6]. This tax is expected to generate $500 million annually, which would be allocated to fund essential services like child care and public safety [1][2][4][5].
The proposal faces industry opposition despite strong public support. The real estate industry and billionaires have voiced concerns about potential market disruption, but polls indicate strong public approval, with 93% of New York City residents supporting the measure [7][4][8]. This specific luxury second-home tax is considered separate from a broader "tax the rich" agenda, and prediction markets currently suggest a low probability of income or corporate tax increases before 2027 [5][9].
Sources (9)
  1. 1Mamdani and Hochul target luxury second homes in New York tax pushfinancial-world.org
  2. 2NYC's plan to tax luxury second homes, explainedbusinessinsider.com
  3. 3New York mayor says second-home levy plan is key step to tax the richbusinesstimes.com.sg
  4. 4Proposal on Luxury Second Homes Over $5 Million and Its Role in NYC Housing Affordabilityimfounder.com
  5. 5New York to tax luxury second homes in NYC but stops short of hiking income taxes on the wealthy:: WRAL.comwral.com
  6. 6Governor Hochul Announces Pied-à-terre Tax Proposal for Luxury Second Homes Valued at $5 Million or More | Governor Kathy Hochul | New York Stategovernor.ny.gov
  7. 7Mamdani, Hochul’s pied-à-terre tax would bring legal battles over NYC property values, experts sayamedpost.com
  8. 8What do business leaders think of Mamdani, Hochul’s tax on luxury second homes? | Inside City Hallyoutube.com
  9. 9Will Mamdani pass the 2% Millionaire Tax before 2027? Pre... | Polymarketworldcoin.polymarket.com

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Market Data

Contract Snapshot

The market resolves to "Yes" if a New York City pied-à-terre tax on luxury second homes becomes binding law in New York City before January 1, 2027, which includes New York State laws applying to NYC, with enactment requiring all constitutional and legal requirements to be completed. Otherwise, the market resolves to "No," and it will close by December 31, 2026, at 11:59 PM EST if the law is not enacted earlier. The outcome is verified by the Office of the Governor of New York, and enactment is considered complete regardless of pending judicial challenges.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
Yes $0.91 $0.10 91%

Market Discussion

New York Governor Kathy Hochul, aligned with Mayor Zohran Mamdani, announced a proposal on 2026-05-07/08 for an annual surcharge on luxury second homes in NYC valued at $5 million or more [1][2]. Mamdani has described this second-home levy as "taxing the rich," signaling his support for it as a budget and equity measure [3]. Public commentary, however, anticipates potential legal challenges over property valuation and tax treatment related to the proposal [4].

Sources (4)
  1. 1Governor Hochul Announces Pied-à-terre Tax Proposal for Luxury Second Homes Valued at $5 Million or More | Governor Kathy Hochul | New York Stategovernor.ny.gov
  2. 2New York to tax luxury second homes in NYC but stops short of hiking income taxes on the wealthy | WSYRlocalsyr.com
  3. 3Mamdani Says Second-Home Levy Plan Is Key Step to Tax the Rich - Bloombergbloomberg.com
  4. 4Mamdani and Hochul’s pied-à-terre tax would bring tsunami of legal battles over NYC property values, experts saynypost.com

4. What are the key legislative hurdles and lobbying pressures Zohran Mamdani's pied-à-terre tax must overcome during the 2026 New York state budget negotiations?

Tentative Budget Deal AnnouncementMay 7, 2026 [1][2][3]
Projected Annual Revenue$500M [2]
Behavioral-Adjusted Annual Revenue$340-380M [4][2]
A tentative budget deal in New York includes a new pied-à-terre tax. The 2026 New York State budget negotiations have tentatively included a pied-à-terre tax, announced on May 7, 2026, which targets second homes in New York City valued over $5 million [1][2][3]. This tax is projected to generate $500 million annually [2]. However, the deal's final confirmation remains pending, with the Assembly Speaker yet to confirm a full agreement, and budget voting anticipated to occur after the May 7 announcement [2][5][6].
Real estate industry opposition presents a major legislative hurdle. The proposed pied-à-terre tax faces significant legislative hurdles, primarily due to persistent opposition from the influential real estate industry [7][8][9]. Past attempts to introduce similar tax proposals in 2014 and 2019 were defeated following intensive lobbying efforts by key industry groups [7][8][9]. Groups such as the Real Estate Board of New York (REBNY), BHS, and Corcoran contend that the tax would result in job losses within the construction sector, diminish property values, and ultimately fail to achieve its projected revenue targets [10][11].
Implementation challenges and revenue uncertainty pose further difficulties. Beyond industry opposition, the tax faces additional challenges related to practical implementation and revenue uncertainty [4]. New York City's property assessments frequently fall below actual market value, which complicates the accurate establishment of the tax base [4]. Moreover, potential behavioral changes among property owners, such as selling or reclassifying their properties, could reduce the actual revenue generated from the projected $500 million to an estimated $340-380 million annually [4][2].
Sources (11)
  1. 1NY Budget Deal Including Pied-à-Terre Tax, Weakened Climate Law - Bloombergbloomberg.com
  2. 2Kathy Hochul Announces $268B Budget With Pied-à-Terre Taxtherealdeal.com
  3. 3NY State Budget Deal Includes a Pied-à-Terre Tax - BKReaderbkreader.com
  4. 4The Pied-à-Terre Tax and Its Potential Revenues - Office of the New York City Comptroller Mark Levinecomptroller.nyc.gov
  5. 5Gov. Hochul says deal on state budget includes controversial NYC pied-à-terre taxyahoo.com
  6. 6Gov. Kathy Hochul says deal on state budget includes controversial NYC pied-à-terre tax | National | union-bulletin.comunion-bulletin.com
  7. 7New York Mayor Zohran Mamdani lauds Gov. Kathy Hochul’s fresh pied-à-terre tax | Business | gmtoday.comgmtoday.com
  8. 8New York eyes pied-à-terre tax on luxury second homes as budget pressure mounts - InvestmentNewsinvestmentnews.com
  9. 9Real Estate Reacts to Governor’s Pied-à-terre Tax Proposaltherealdeal.com
  10. 10Proposed New York Pied-à-Terre Tax Draws Sharp Reactions – Commercial Observercommercialobserver.com
  11. 11BHS, Corcoran Push Back Against Pied-à-Terre Taxtherealdeal.com

5. What do recent polls from 2026 reveal about NYC voter support for the pied-à-terre tax, particularly across different income brackets and boroughs?

NYS Voter Support for $1M+ Income Tax54-29% (February 2026 Siena Poll) [1][2]
Estimated Properties Affected by Pied-à-Terre Tax11,200 properties [3][4][5]
Estimated Annual Revenue from Pied-à-Terre Tax$340 million to $500 million [3][4][5]
Recent polls show general support for NYC income tax, lacking pied-à-terre specifics. Recent polls from 2026 do not offer detailed breakdowns of voter support for the pied-à-terre tax by specific income brackets or NYC boroughs. However, a Siena Poll conducted from February 23-26, 2026, indicated that New York State voters supported an NYC income tax on individuals earning $1 million or more by 54-29% [1][2]. Support from NYC voters was even higher at 62-21%, while Democrats showed overwhelming backing at 72-13%. Conversely, Republicans largely opposed the measure, with 51-36% against it [1].
The pied-à-terre tax targets luxury second homes with significant revenue potential. Announced in April 2026 by Mayor Mamdani and Governor Hochul, this tax is specifically designed for non-resident owned luxury second homes valued at $5 million or more [3][6]. The tax is projected to affect approximately 11,200 properties, with an estimated annual revenue generation ranging from $340 million to $500 million [3][4][5]. Prediction markets currently assign low odds, around 14%, to a related "Mamdani millionaire tax" passing before 2027 [7].
Sources (7)
  1. 1Strong Majorities of Democrats & NYC Voters Support Gov. & Leg. Giving NYC Ability to Raise Income Tax on Its Residents Earning At Least $1M – Siena Research Institutesri.siena.edu
  2. 2Poll: New Yorkers back wealth tax over property tax hike | New York | thecentersquare.comthecentersquare.com
  3. 3The Pied-à-Terre Tax and Its Potential Revenues - Office of the New York City Comptroller Mark Levinecomptroller.nyc.gov
  4. 4What is a pied-à-terre tax? NYC's new second home surcharge explainedbetter.com
  5. 5NYC pied-à-terre tax could raise less than Hochul's $500M estimate, report finds6sqft.com
  6. 6Mayor Mamdani, Governor Hochul Announce State’s First Pied-à-Terre Tax, Requiring Ultrawealthy and Global Elites to Pay Their Fair Share - NYC Mayor's Officenyc.gov
  7. 7Will Mamdani pass the 2% Millionaire Tax before 2027? Pre... | Polymarketpolymarket.com

6. How does the legislative path for Mamdani's pied-à-terre tax differ from the recent failed proposals to raise New York's general income or corporate taxes?

Projected Annual Revenue$500M [1][2][3]
Units AffectedApproximately 13,000 luxury units [1][3]
Value ThresholdOver $5M [1][2][3]
Mamdani's pied-à-terre tax successfully passed through New York's budget process. This tax targets luxury second homes in New York City valued over $5 million and owned by non-primary residents. It is projected to generate $500 million in annual revenue, applying to an estimated 13,000 luxury units [1][2][3]. The proposal, announced in April 2026, was tentatively included in the $268 billion New York state budget deal on May 7, 2026 [4][2][5][6][7]. Its legislative path through the budget process facilitated closed-door passage, thereby bypassing public votes, and marks the first successful luxury unit tax of its kind in New York state [1][5][3].
Failed general tax hikes differed significantly in legislative strategy and outcome. In contrast, recent proposals to raise New York's general income and corporate taxes, which were included in the 2026 Assembly and Senate one-house plans for earners above $5 million, ultimately failed [8][9][10]. These proposals were rejected during negotiations, primarily due to Governor Hochul's opposition [8][9][10]. Unlike the pied-à-terre tax, previous general tax increases have consistently been thwarted by public votes, underscoring a critical distinction in legislative approach [1][5].
Sources (10)
  1. 1What's pied-à-terre? Why Mamdani's tax the rich plan is rare in the USnorthjersey.com
  2. 2Governor Hochul Announces Pied-à-terre Tax Proposal for Luxury Second Homes Valued at $5 Million or More | Governor Kathy Hochul | New York Stategovernor.ny.gov
  3. 3Hochul, Mamdani Revive Pied-À-Terre Tax On $5M NYC Second Homesbisnow.com
  4. 4Mayor Mamdani, Governor Hochul Announce State’s First Pied-à-Terre Tax, Requiring Ultrawealthy and Global Elites to Pay Their Fair Share - NYC Mayor's Officenyc.gov
  5. 5Hochul, Mamdani reach deal on luxury second homes tax in NYCny1.com
  6. 6NY Budget Deal Including Pied-à-Terre Tax, Weakened Climate Law - Bloombergbloomberg.com
  7. 7Kathy Hochul Announces $268B Budget With Pied-à-Terre Taxtherealdeal.com
  8. 8NY Lawmakers Pass Budget Plan with Tax Hikes Opposed by Hochulnews.bloomberglaw.com
  9. 9Mamdani’s Tax Proposals Are All Wrong for New York Statecity-journal.org
  10. 10Proposed Taxes Will Support, Not Hurt, New York’s Economy - Fiscal Policy Institutefiscalpolicy.org

7. What are the publicly stated positions and voting histories of the New York Assembly Speaker and Senate Majority Leader on property tax reforms, and how might this influence the 2026 pied-à-terre tax vote?

Pied-à-terre tax proposed forNYC second homes valued over $5 million [1][2]
Expected revenue from taxApproximately $500 million [1][2]
Included in budget dealMay 7, 2026, tentative budget deal [1][3]
New York's legislative leaders have expressed clear stances on property tax reforms. Assembly Speaker Carl Heastie has consistently supported property tax exemptions and actively participated in affordable housing initiatives [4][5]. Concurrently, Senate Majority Leader Andrea Stewart-Cousins successfully enacted a permanent property tax cap in 2019 and advocates for increasing personal income taxes on individuals earning over $5 million [6][7][8].
The proposed pied-à-terre tax targets luxury second homes in New York City. Introduced in April 2026, this tax applies to homes valued above $5 million and is projected to generate approximately $500 million in revenue [1][2]. Despite facing previous hurdles, this tax has now been incorporated into a tentative budget deal announced on May 7, 2026, marking a significant step forward [2][3].
The pied-à-terre tax is highly likely to pass. Considering the legislative leaders' historical support for taxing wealthy individuals and the tax's recent inclusion in the budget agreement, the proposed pied-à-terre tax is highly likely to pass [6][1][3]. This outcome suggests that the prediction market question concerning a tax on luxury second homes will resolve as YES before January 1, 2027 [6][1][3].
Sources (8)
  1. 1Mamdani Housing Plan and Pied-à-Terre Tax Face Obstaclestherealdeal.com
  2. 2Mayor Mamdani, Governor Hochul Announce State’s First Pied-à-Terre Tax, Requiring Ultrawealthy and Global Elites to Pay Their Fair Share - NYC Mayor's Officenyc.gov
  3. 3NY Budget Deal Including Pied-à-Terre Tax, Weakened Climate Law - Bloombergbloomberg.com
  4. 4https://nyassembly.gov/write/upload/postings/2025/pdfs/20250320_0113376.pdfnyassembly.gov
  5. 5State Assemblymember Carl Heastie | BillTrack50billtrack50.com
  6. 6State Legislature Backs Tax Hikes on Wealthy, Adding Fuel to…nysfocus.com
  7. 7Senate Majority Passes Permanent Tax Cap To Protect Taxpayersnysenate.gov
  8. 8Andrea Stewart-Cousins on New York state budgetspectrumlocalnews.com

8. How do independent economic forecasts for the pied-à-terre tax's revenue generation and market impact compare to the $500M annual projection cited by Mamdani and Hochul?

Initial Annual Revenue Projection$500M (cited by Mamdani and Hochul) [1][2][3]
Comptroller Levine's Adjusted Projection$340M-$380M (after accounting for behavioral response and rentals) [1][4][5]
Tax StatusProposed in state budget negotiations; not yet enacted [2][6][7][8]
Independent forecasts suggest the pied-à-terre tax may yield less revenue. The $500 million annual revenue projection cited by Mamdani and Hochul was based on an estimated 11,200 to 13,000 non-primary residences valued over $5 million by April 2026 [1][2][3]. However, Comptroller Levine's independent report, released on April 30, 2026, initially projected a base revenue of $500 million to $510 million. This projection was subsequently adjusted downwards to $340 million to $380 million, accounting for a 10% behavioral response from owners and the inclusion of rentals [1][4][5].
The proposed tax faces ongoing legislative and implementation hurdles. As of May 2026, the pied-à-terre tax is still undergoing state budget negotiations and has not been enacted, following multiple failed attempts between 2014 and 2019 [2][6][7][8]. The tax is intended to apply to condos, co-ops, and 1-3 family homes. Significant issues persist, including challenges related to property valuation (distinguishing between assessed and market value), the specific treatment of co-ops, and practical enforcement mechanisms [4][5][9].
Independent analyses predict several potential negative market impacts. Reports from Fazen Markets and the Empire Center in May 2026 have highlighted various risks to the real estate market [10][11][9][12]. These identified concerns include ripple effects within the luxury property segment, the potential for capital flight to other cities, a decrease in overall property values, and an increase in co-op fees for residents [10][11][9][12].
Sources (12)
  1. 1NYC pied-à-terre tax could raise less than Hochul's $500M estimate, report finds6sqft.com
  2. 2Hochul, Mamdani Revive Pied-À-Terre Tax On $5M NYC Second Homesbisnow.com
  3. 3Mayor Mamdani, Governor Hochul Announce State’s First Pied-à-Terre Tax, Requiring Ultrawealthy and Global Elites to Pay Their Fair Share - NYC Mayor's Officenyc.gov
  4. 4NYC Comptroller Mark Levine Releases Comprehensive Estimation of a Potential Pied-à-Terre Tax and Highlights Key Variables - Office of the New York City Comptroller Mark Levinecomptroller.nyc.gov
  5. 5The Pied-à-Terre Tax and Its Potential Revenues - Office of the New York City Comptroller Mark Levinecomptroller.nyc.gov
  6. 6What is the pied-a-terre tax? Zohran Mamdani targets ultra-wealthy non-residentswionews.com
  7. 7New York Mayor Zohran Mamdani lauds Gov. Kathy Hochul’s fresh pied-à-terre tax | Business | gmtoday.comgmtoday.com
  8. 8What is a pied-à-terre tax? NYC's new second home surcharge explainedbetter.com
  9. 9NYC Pied-à-Terre Tax Targets $5M+ Homes | Fazen Marketsfazen.markets
  10. 10Four Problems with a Statewide Pied-à-Terre Tax - Empire Center for Public Policyempirecenter.org
  11. 11A Pied-à-Terre Tax Must Be Designed to Actually Raise Revenue for New York - EMPIRE REPORT NEW YORK 2026® NEW YORK'S 24/7 NEWS SITEempirereportnewyork.com
  12. 12The Pied-à-Terre Tax Returns: Why NYC’s Second-Home Debate Is Back And Why It No Longer Targets Just Luxury Buyers - Brian Phillipsblog.themobilebroker.net

9. What Could Change the Odds

Key Catalysts

Governor Hochul announced a pied-à-terre tax proposal for luxury second homes valued at $5 million or more, specifically targeting one- to three-family homes, condos, and co-ops in NYC owned by individuals whose primary residence is outside the five boroughs [1][2][3]. This proposal is projected to raise at least $500M in annually recurring revenue [1]. An NYC Comptroller analysis referenced Governor Hochul’s estimate of $500M from 13,000 second homes with a market value of at least $5M [4].
As of May 7, 2026, reporting describes a tentative state budget agreement that would impose the second-homes tax in NYC, while acknowledging that "much was still left to be negotiated" and that it is part of a broader budget plan [5][6]. An NYC Comptroller analysis on Apr 30, 2026, stated that a tax on pied-à-terre properties is one of the most likely, and possibly the only, new taxes to be included in the FY 2027 state budget [4]. A separate non-binding market timeline suggests an "earliest realistic effective date" of Jan 1, 2027, with first annual bills in late 2027, contingent on state passage in the 2026 session and the NYC Department of Finance building assessment, billing, and primary-residence verification systems [7].

Key Dates & Catalysts

  • Expiration: January 08, 2027
  • Closes: January 01, 2027
Sources (7)
  1. 1Governor Hochul Announces Pied-à-terre Tax Proposal for Luxury Second Homes Valued at $5 Million or More | Governor Kathy Hochul | New York Stategovernor.ny.gov
  2. 2Hochul, Mamdani reach deal on luxury second homes tax in NYCny1.com
  3. 3Mayor Mamdani, Governor Hochul Announce State’s First Pied-à-Terre Tax, Requiring Ultrawealthy and Global Elites to Pay Their Fair Share - NYC Mayor's Officenyc.gov
  4. 4The Pied-à-Terre Tax and Its Potential Revenues - Office of the New York City Comptroller Mark Levinecomptroller.nyc.gov
  5. 5New York state budget includes tax on second homesnewsnationnow.com
  6. 6NY Budget Deal Including Pied-à-Terre Tax, Weakened Climate Law - Bloombergbloomberg.com
  7. 7NYC Pied-à-Terre Tax 2026: $5M+ Second Home Surcharge Explaineddefalcorealty.com