NYC's Tax Revenue Proposals

Personal Impact Calculator

Tax Revenue Proposals

From city-level taxes NYC can enact to state-level asks requiring Albany. Includes the Invest in Our New York campaign bills.

Priority proposals
$3–4BAnnual

Personal income tax hike (Fair Share Act)

Earn $1M+? NYC income tax rate goes up 2 percentage points. Bill: S.8577/A.8953.

Senate: smaller versionAssembly: smaller versionHochul: opposed
City
Status: Neither chamber matched Mamdani's 2-point/$1M version. Assembly proposed 0.2 points for $5M–$10M earners; Senate proposed 0.5 points for $5M+. Revenue discrepancy: Mamdani says $3B, bill sponsor memo says ~$4B.
$1.5BAnnual

Corporate tax increase (NYC)

Finance firms: 9%→10.8%. Others: 8.85%→10.62%. Taxed on NY sales, not office location.

Senate ✓Assembly ✓Hochul: no increase
City
$250MAnnual

Unincorporated business tax hike

Rate rises 4%→4.4% only for businesses with income over $5M.

Status unclear
City
~$700MAnnual

Passthrough entity tax credit cut

LLC/S-corp PTET credit drops from 100% to 75%.

Senate ✓Assembly ✓
City
Other city-supported proposals
$725MAnnual

Luxury property surcharge

1% extra annual tax on residential properties worth $5M+.

Senate: not includedAssembly: not included
City
$161MAnnual

Cash-only real estate transfer tax

1% on cash-only purchases over $1M.

Status unclear
City
$321MAnnual

Mansion + supplemental tax

Tax on residential property sales over $5M. Both houses backed ~1.4-point rate increase on expensive sales.

Senate ✓Assembly ✓
City
$901MAnnual

Precious metals sales tax

Remove sales tax exemption on bullion/coins over $1K. Primary targets: banks and institutional investors buying billions in gold as hedges. Bill: S.7875. Split: $300M NYC, $601M state.

Senate ✓Assembly: unclear
City+State
"Invest in Our New York" — requires Albany
Note: These proposals are backed by the Invest in Our New York campaign and have been introduced as state legislation. Mamdani's office references them, but several details differ between the mayor's framing and the actual bills. Discrepancies are noted below.
$7BAnnual

State corporate tax reform

Raises taxes on companies with over $2.5M in profits. Bill: S.953/A.1971.

Senate: +1.75pt on $5M+Assembly: +2pt on $10M+Hochul: extend only
State
$12BAnnual

Capital gains surcharge

State surcharge on capital gains over $500K/year. Bill: S.1439/A.676.

Senate: unclearAssembly: unclearHochul: opposed
State
$4BAnnual

Heirs tax (estate + inheritance + gift overhaul)

Creates a three-part system: revised estate tax ($750K exemption), new inheritance tax on recipients ($250K per-heir exemption), and a new gift tax. Key protections: spousal transfers exempt, primary residence exclusion up to $1.75M, retirement accounts excluded, family farms and small businesses can defer. Bill: S.914/A.2049.

Senate: unclearAssembly: unclearHochul: opposed
State
What S.914 actually does (from the bill text): It's a hybrid — not a simple estate tax cut or inheritance tax. The bill (1) lowers the estate tax exemption from $7.35M to $750K with a 50% top rate, (2) creates a new inheritance income tax on each recipient (0% on first $250K, up to 50% over $10M), (3) creates a new gift tax ($750K lifetime exemption) to close the pre-death gifting loophole, and (4) provides credits so the inheritance tax is reduced by estate tax already paid on the same assets. Mamdani's document focuses only on the estate tax portion. The per-heir $250K exemption means an estate split among five children gives each a separate $250K threshold — very different from a single $750K estate-level exemption. Note: This analysis is based on the Senate version (S.914). The Assembly version (A.2049) may differ in details.
$21BAnnual

Progressive income tax (IONY proposal)

Restructures NYS income tax with 11 new brackets above $500K, topping out at 24% on income over $20M. No change for anyone under $323K. Earners from $500K–$1M may actually pay less than under current temporary surcharges. Real increases start at $1M+. Bill: S.1622/A.1281.

Senate: smaller version ($5M+)Assembly: smaller version ($5M+, with tax cuts below $323K)Hochul: opposed
State
What S.1622 actually does (from the bill text): First, it makes the current temporary high-earner surcharges (9.65%–10.90% on income over $2.15M) permanent — they're set to expire in 2028. Then, for tax years after 2025, it creates a finely graduated structure: 7.5% at $500K, 8% at $700K, 9% at $900K, 10% at $1M, 12% at $2M, 14% at $3M, 16% at $4M, 18% at $5M, 20% at $10M, 22% at $15M, 24% at $20M+. Nobody under $323K pays more. The $500K–$1M range may pay less than the current 8.82% temporary rate. This is distinct from Mamdani's $3B city-level Fair Share Act (2% on income above $1M). Both could coexist — they operate at different levels of government.

State Cuts & Cost Shifts

Money the state has taken away or forced the city to cover. All originate at the state level.

ProgramPlain EnglishSourceCost
MTA — $480M
Paratransit cost shiftState pushing Access-A-Ride costs onto the cityState$300M
Internet sales tax interceptState keeping online sales tax that used to go to NYCState$180M
Health & Human Services — $1.5B
eFMAP withholdingState withholding enhanced federal Medicaid fundsState
federal $ withheld by state
$343M
H+H cost shiftDisallowed indigent care claims at public hospitalsState$57M
Foster care tuitionEliminated reimbursement for foster children's educationState$44M
TANF reimbursement cutWelfare reimbursement cut from 100% to 85%State
TANF is federal, admin by state
$193M
Advantage Program cutReduced homeless-to-housing transition fundingState$65M
Adult shelter capState capped shelter reimbursementState$500M
Foster care/adoptionNYC pays max rates with no state helpState$263M
Public Protection — $40M
Close to Home eliminatedCut community-based juvenile justice fundingState$40M
Revenue Sharing — $302M
AIM funding eliminatedNYC is the only eligible municipality that gets zeroState$302M
Total annual cost to NYC$2.3B

The Debate

Each proposal has a case for and against. Here they are, side by side.

$3–4BPersonal income tax hike (Fair Share Act)City
For

Only hits income above $1M — doesn't touch anyone earning less (S.8577/A.8953). NYC millionaires already pay ~41% of the city's entire income tax bill. Massachusetts passed a similar 4% surtax and it dramatically beat revenue projections. The bill sponsor estimates ~$4B annually.

Against

Requires Albany to pass enabling legislation, then City Council must enact it — two political hurdles, not one. NYC already has the highest combined city+state income tax in the country. Millionaires are the most mobile taxpayers and can relocate to Florida or Connecticut.

$1.5BCorporate tax increaseCity
For

NY uses single-sales-factor apportionment — companies pay based on what they sell to NY customers, not where offices are. Moving HQ to Texas doesn't change the tax bill. 75% of corporate tax comes from ~500 companies with captive NY customer bases.

Against

Even if the tax follows sales, companies can grow headcount elsewhere. JPMorgan already employs more people in Texas than New York. The city collects the business tax but quietly loses the well-paid employees whose income taxes are worth more.

$250MUnincorporated business tax hikeCity
For

Only affects businesses reporting over $5M in income — your neighborhood accountant or small contractor pays nothing extra. A modest 0.4 percentage point increase on the very highest earners in an already-existing tax.

Against

Wealthy business owners have accountants who can restructure — by incorporating, shifting income, or relocating. Piles onto all other tax increases hitting business owners simultaneously. Actual revenue may fall well short of $250M.

~$700MPassthrough entity tax credit cutCity
For

The PTET credit was created to soften the 2017 federal SALT cap. Congress raised that cap to $40K in 2025, so the original justification for a 100% rebate has largely evaporated. Cutting to 75% is a reasonable adjustment.

Against

The $40K SALT cap phases out entirely for earners over $600K — exactly the partners this targets. They get zero federal relief. And the SALT cap reverts to $10K in 2030, meaning a double hit in just a few years.

$725MLuxury property surchargeCity
For

You can't move a townhouse to Florida. Real property is the hardest asset to shelter from a local tax. Only affects homes worth $5M+ — Park Avenue co-ops and Brooklyn Heights brownstones, not typical homeowners.

Against

Once a property surcharge exists, it's easier to lower the threshold. Today's $5M floor could become tomorrow's $1M floor in the next budget crisis. There's already a separate 9.5% property tax hike sitting in reserve as a fallback.

$161MCash-only real estate transfer taxCity
For

A record 69% of Manhattan transactions in Q2 2025 were all-cash. Foreign buyers — 47% of whom pay all-cash nationally — doubled in NYC in early 2025. Chinese buyers pay cash 71% of the time. LLC purchases (often used to shield ownership) make up 11% of all NYC sales. A 1% fee on cash purchases over $1M creates transparency and revenue from a market that currently avoids mortgage scrutiny.

Against

Not all cash buyers are suspicious — many are wealthy retirees, downsizers, or investors who simply don't need financing. Stacking transfer taxes can freeze luxury sales. The LA mansion tax raised only 32 cents on the dollar as transactions collapsed. The real transparency fix is beneficial ownership disclosure, not a blanket tax on cash.

$321MMansion + supplemental taxCity
For

NYC created the first mansion tax in 1982 and it's still in effect — 1% on purchases over $1M (never inflation-adjusted). A supplemental tax already applies at higher tiers. This proposal expands rates on $5M+ sales. Graduated transfer taxes are a proven, low-drama revenue source used in 17+ U.S. cities.

Against

Too many transaction taxes can freeze the market that generates them. Real estate deals create ripple effects — construction, broker commissions, renovation spending. Luxury buyers may sit on the sidelines or split properties to avoid thresholds. The $1M mansion tax threshold set in 1982 now catches ordinary apartments — mission creep is real.

$901MPrecious metals sales taxCity+State
For

The bill sponsor notes that in 2025 alone, two multinational banks purchased ~$4B in gold as a hedge against short positions — tax-free. The $601M state revenue loss comes overwhelmingly from institutional and high-net-worth investors, not retail coin collectors. The bill (S.7875) would still exempt purchases by banks, governments, and the UN — it specifically targets private investment purchases. Gold ETFs and funds buying physical bullion in NY would also pay.

Against

40+ states exempt bullion from sales tax. Retail buyers and small dealers would be caught alongside big banks. Enforcement is difficult — buyers can purchase online from out-of-state dealers. The bill was dropped from the 2025 budget after dealer lobbying, suggesting political headwinds remain strong.

$7BState corporate tax reformState
For

Targets companies with $2.5M+ in profits (S.953/A.1971). Corporations pay less in taxes now than in the 1990s. Keeps NY competitive with northeast neighbors while raising revenue from record profits.

Against

New York already has among the highest state corporate tax rates. Adding more brackets makes the state less competitive with Texas and Florida, which have no corporate income tax. Companies choose where to expand headcount.

$12BCapital gains surchargeState
For

Investment profits are taxed at lower rates than wages (S.1439/A.676). A hedge fund manager making $10M in stock sales pays a lower rate than a nurse making $80K. This closes that gap. Washington State's version survived a voter repeal attempt.

Against

Unlike a paycheck, you choose when to sell stocks. Wealthy investors can wait until they've moved to Florida, then sell. The $12B estimate assumes people behave as before — they won't. Washington's revenue fell 45% in year two from market volatility alone.

$4BHeirs tax / estate + inheritance overhaulState
For

The bill (S.914) has substantial protections for typical families: spousal transfers fully exempt, primary residences up to $1.75M excluded (covers the median home in every borough), retirement accounts excluded, family farms and small businesses under $5M can defer. A homeowner who's lived in a $1.5M apartment for 10+ years with a 401(k) and limited other assets would owe little or nothing. The per-heir $250K exemption rewards splitting — a $2M estate among four children means $500K each, only $250K taxable at 5%. The real targets are large non-residence wealth: investment portfolios, second homes, business equity over $5M. Currently a single heir can inherit $7.35M and pay nothing.

Against

The $750K estate exemption sounds low, but most NYC homeowners with a single long-term residence worth under $1.75M, limited other assets, and retirement accounts (which are excluded) would be substantially shielded. The real pain falls on people with significant non-residence assets or multiple properties. The new gift tax ($750K lifetime) closes the main pre-death escape route. The three-tax system creates compliance complexity. And notably, Scandinavian countries — the models for progressive taxation — have mostly abolished estate/inheritance taxes: Sweden (2005), Norway (2014), and Denmark exempts direct heirs (children, spouses) entirely — only taxing non-family recipients at 36.25%. They chose high income and consumption taxes over estate-level taxation. NJ repealed its estate tax over flight but still has an inheritance tax — and NJ is next door. Note: this is the Senate version; Assembly version may differ.

$21BProgressive income tax (IONY)State
For

The bill (S.1622) doesn't raise taxes on anyone under $323K. Earners from $500K–$1M may actually pay less than the current temporary surcharges (7.5–9% vs 8.82%). The real increases target $2M+ (12%→24% topping at $20M+). Currently a billionaire pays the same 10.90% state rate as someone earning $25M — the bill differentiates them. The $21B revenue is the largest single proposal and would fund statewide services.

Against

The top proposed rate of 24% state income tax, combined with NYC's city income tax (~3.9%), would create a combined state+city marginal rate near 28% — before federal taxes. That's among the highest in the world for a subnational jurisdiction. The steep escalation from 10% at $1M to 24% at $20M creates enormous incentive for the wealthiest (who are the most mobile) to establish residency elsewhere. Florida has zero state income tax. The current temporary surcharges already raised rates significantly — this more than doubles the top rate.

Case Studies

Real-world results from cities and states that tried similar proposals. Success on the left, cautionary tale on the right.

Millionaire income tax surcharge
✓ Massachusetts 2023–25

Dramatically beat projections

A 4% surtax on incomes over $1M generated ~$2.2B in its first full year and nearly $3B in year two — far above the initial $1.5B forecast. Funded free school lunches, community college, and transit. The number of millionaires in the state grew 39% from 2022 to 2024. Snopes (nonpartisan fact-check) · Boston.com · CPA Practice Advisor

✗ Massachusetts caveat

Revenue is volatile and base is fragile

Tufts University (cSPA) analysis estimated behavioral changes would reduce expected revenue by ~35%. Revenue surges in stock booms and crashes in downturns. Some high-profile executives left for Florida citing the surtax. Tufts cSPA (nonpartisan academic)

Corporate / business tax hikes
✓ Seattle 2025

Raised taxes on big firms, cut them for small ones

Proposition 2 raised the gross receipts tax on large businesses by 50%+ while eliminating it for 75% of smaller businesses. Projects $80–90M in new annual revenue. Passed with 68% voter support. Note: WA has no corporate income tax — Seattle's B&O is a gross receipts tax, structurally different from NYC's corporate income tax. Ballotpedia (nonpartisan)

✗ Seattle caveat

Large employers shifting jobs — but context differs

Microsoft removed all Seattle businesses; Amazon relocated employees to Bellevue. However, WA has no state income tax, so the B&O tax is the only business tax — making it more salient than in NYC where corporate income tax is one of many layers. The comparison has limits. King County Elections (opponent statement)

Luxury property & mansion taxes
✓ NYC itself + 17 other cities

NYC's own mansion tax has worked since 1982

NYC created the first mansion tax in 1982 (1% on purchases over $1M) — it's still active and generates steady revenue. As of 2024, 17 U.S. cities/counties have progressive transfer taxes, collectively raising ~$3B annually. Santa Fe voters approved a 3% mansion tax in 2023 by 73–27%. The proposal expands NYC's existing framework, not a new experiment. Lincoln Institute (nonpartisan research)

✗ Los Angeles 2023

Raised one-third of projected revenue

LA passed a 4–5.5% transfer tax on properties over $5M, projecting $672M annually. It raised only $215M — about 32 cents on the dollar. Sales of homes over $5M dropped from 138 in the month before to just 2 the following month. CA LAO (nonpartisan state fiscal analyst)

Capital gains tax
✓ Washington State

Survived repeal and is being expanded

A 7% capital gains tax generated $786M in year one — above projections. Funded 10,000+ childcare slots and 171 school construction projects. Voters rejected a repeal measure in 2024. The tax was expanded in 2025 with a higher tier for gains over $1M. WA Dept of Revenue (government)

✗ Washington State year two

Revenue fell 45% — but volatility isn't a reason not to tax

After the $786M debut, collections dropped to $433M from a cooler stock market. But WA addressed this by design: the law creates a reserve fund for surplus years to maintain spending in lean years. Massachusetts did the same with its millionaire surtax. Volatility means "budget carefully" — not "don't collect." WA Dept of Revenue (government)

Estate / inheritance tax
✓ Oregon & Maryland

Low exemptions work without collapse

Oregon has the lowest estate tax exemption in the country ($1M) and collected $339M in fiscal year 2024 (~$700M per biennium), up from $102M in 2012. Maryland generated $225M in 2023 with a $5M exemption. Both show lower thresholds can function as durable revenue. OR Legislative Revenue Office (government)

✗ New Jersey 2018

Abolished its estate tax — but kept the inheritance tax

NJ repealed its estate tax (levied on the total estate) in 2018, abandoning ~$550M in projected annual revenue due to wealthy retiree flight to Florida and Delaware. However, NJ still has an inheritance tax (levied on individual recipients based on their relationship to the deceased) — one of only six states that does. The estate tax was the driver of flight because it applied regardless of who inherited. Tax Foundation (center-right think tank)

What this means for NYC residents (based on the actual bill text, S.914)

NYC median home prices (early 2026): Manhattan $1.2M, Brooklyn $1M, Queens $405K–$513K, Bronx $249K–$294K. Citywide median: ~$770K–$875K. PropertyShark · Redfin

Spouses pay nothing. S.914 explicitly excludes spousal transfers from both the inheritance tax and the estate tax. The bill comes when the surviving spouse dies and assets pass to children or others. Bartal Law

Primary residence protection. The bill excludes up to $1.75M of a primary residence from the inheritance tax if the heir or decedent lived there for 10+ consecutive years (or $750K for FHA-mortgaged homes). This currently covers the median home in every borough. However, the threshold is not indexed to inflation — so as property values rise, it will erode over time, eventually leaving more homeowners exposed. The 10-year occupancy requirement also excludes anyone who moved recently. Note: this is the Senate version (S.914); the Assembly version may differ.

Retirement accounts excluded. 401(k)s, IRAs, Roth IRAs, HSAs, and pensions are explicitly excluded from the inheritance income tax. They still count toward the $750K estate tax threshold, but the heir doesn't pay the separate inheritance tax on them.

Per-heir exemption. The $250K inheritance tax exemption is per recipient, not per estate. An estate worth $2M split equally among four children gives each $500K — of which only $250K is taxable at 5%. A single heir inheriting $2M would owe much more. The bill rewards splitting.

Family business and home deferrals. If you inherit mostly a home or family business (50%+ of the estate, total under $5M), you can defer the tax until you sell — so you're not forced to sell grandma's apartment to pay the tax bill.

What still hurts. The $750K estate tax exemption (down from $7.35M) catches nearly every NYC homeowner on the estate side, even though the $1.75M residence exclusion softens the inheritance side. The new gift tax ($750K lifetime) closes the main pre-death escape route. The three-tax structure (estate + inheritance + gift) creates compliance costs that fall hardest on middle-wealth families without lawyers on retainer. And none of the thresholds are indexed to inflation.

The cliff. Under current NY law, estates exceeding 105% of the exemption lose it entirely. It's unclear whether S.914 retains this cliff — the bill only references it for pre-April 2025 deaths. If the cliff is eliminated, the new system would be significantly less punishing at the margins. NY Legacy Lawyers

Human capital investment (tax-funded services)
✓ Massachusetts full circle

Millionaire tax already funding the pipeline

Massachusetts law requires all Fair Share revenue to fund education and transportation. By FY2026 it spent $2.4B on free school lunches, community college, early literacy, transit, and pre-K. WBUR (public media) · Governing (nonpartisan)

✗ Detroit & Cleveland — limited comparison

Cautionary, but context is very different

Both cities lost population despite high taxes and services in the 1970s–80s. However, their decline was driven by auto industry collapse, offshoring, and white flight — not by tax-funded services failing. NYC is a financial and cultural hub with agglomeration effects those cities never had. Goldman Sachs can't easily move its talent ecosystem to Dallas the way GM moved factories to Mexico. This comparison has real limits.

Key Terms & Glossary

Tax jargon translated. Click any term to understand what it means and why it matters.

PTET
Passthrough Entity Tax
A special tax that LLCs, S-corps, and partnerships can elect to pay at the business level instead of on the owners' personal returns. New York created it as a workaround for the federal SALT cap — by paying the tax through the business, owners could deduct it as a business expense (not subject to the $10K/$40K SALT limit). The "credit" lets owners offset what the business paid against their personal income tax. Mamdani's proposal cuts that credit from 100% to 75%, meaning owners keep less of the offset.
SALT
State and Local Tax deduction
When you file federal taxes, you can deduct what you paid in state and local taxes (income tax, property tax). In 2017, Congress capped this deduction at $10,000, which hit high-tax states like New York hard. The "One Big Beautiful Bill" (July 2025) raised the cap to $40,000 through 2029, then it reverts to $10,000. The cap phases out entirely for earners above $600K, meaning the wealthiest New Yorkers get no SALT relief at all.
Capital gains
Profit from selling investments
When you sell stocks, real estate, or other investments for more than you paid, the profit is a "capital gain." The federal government taxes capital gains at lower rates than wages — a nurse earning $80K in salary pays a higher rate than a hedge fund manager earning $10M from stock sales. The proposed state surcharge would add a tax on capital gains income over $500K/year to close that gap.
Single-sales-factor apportionment
How NY decides what share of a company's profits to tax
Since 2015, New York taxes corporations based on where their customers are, not where their offices are. If Amazon sells $1B worth of goods to New Yorkers, NY taxes that revenue — regardless of whether Amazon's offices are in Seattle or Texas. This means a company can't avoid NYC corporate taxes by moving its headquarters out of state, which is why proponents say the corporate tax hike is hard to dodge.
AIM
Aid and Incentives to Municipalities
A state revenue-sharing program that sends money to cities and towns across New York. NYC was kicked out of the program in 2011 under Governor Cuomo and has received zero ever since — even though it's technically still eligible. Both the Assembly ($1B over 3 years) and Senate ($604M over 2 years) have proposed restoring NYC's AIM funding.
eFMAP
Enhanced Federal Medical Assistance Percentage
During emergencies (like COVID), the federal government increases the share of Medicaid costs it covers — the "enhanced" match. The state is supposed to pass this extra federal money through to localities. NYC says the state has been withholding $343M/year in enhanced Medicaid funds that should flow to the city.
TANF
Temporary Assistance for Needy Families
The main federal welfare program, commonly known as "cash assistance." The federal government funds it, but states administer it and decide how much to reimburse cities. New York State used to reimburse NYC for 100% of its TANF family assistance costs. The state cut that to 85%, leaving the city to cover the $193M gap.
RPTT
Real Property Transfer Tax
A tax paid whenever real estate changes hands. NYC already has an RPTT; the new proposal adds a 1% surcharge on all-cash purchases over $1M. All-cash deals avoid the scrutiny that comes with a mortgage application, which is why this is sometimes framed as an anti-money-laundering measure.
Estate tax vs inheritance tax
Two different taxes on wealth at death — S.914 creates both
An estate tax is levied on the total estate before distribution — the estate itself pays. An inheritance tax is levied on individual recipients based on how much each person receives. New York currently has only an estate tax (exemption: $7.35M in 2026). S.914 creates a hybrid: a revised estate tax ($750K exemption, 5–50% rates) plus a new inheritance income tax ($250K per-heir exemption, 0–50% rates) plus a new gift tax ($750K lifetime exemption). The inheritance tax credits any estate tax already paid on the same assets, so it's not pure double taxation. Key carve-outs: spousal transfers exempt, primary residence up to $1.75M excluded, retirement accounts excluded, family farms and small businesses can defer. New Jersey repealed its estate tax in 2018 but still has an inheritance tax — one of only six states that does.
UBT
Unincorporated Business Tax
A tax unique to NYC, levied on businesses that aren't incorporated — sole proprietorships, partnerships, freelancers. The current rate is 4%. The proposal raises it to 4.4%, but only for businesses with income over $5M. Your neighborhood plumber or freelance designer is unaffected.
GILTI
Global Intangible Low-Taxed Income
A federal tax concept targeting profits that multinational corporations book in low-tax countries (like Ireland or Bermuda) by parking intellectual property there. The IONY state corporate reform proposes tightening how New York treats GILTI income so that companies can't use offshore structures to reduce their NY tax bill.
Mansion tax
Transfer tax on expensive home sales
A one-time tax paid when a residential property sells above a certain threshold. NYC created the first one in 1982 and it's still in effect — 1% on purchases over $1M (never inflation-adjusted, so it now catches ordinary apartments). A supplemental tax applies at higher tiers ($2M+). The current proposal would raise rates by ~1.4 percentage points on sales over $5M. This is different from the luxury property surcharge (an annual tax on ownership) — the mansion tax is only paid once, at the time of sale.
One-house budget
Senate or Assembly budget proposal
Each year, the NY Senate and Assembly each release their own budget proposals (called "one-house budgets") before negotiating with the Governor on a final deal. When an article says "both houses backed" a tax increase, it means the Senate and Assembly included it in their respective one-house budgets — but it still needs the Governor's agreement to become law. Hochul has veto power.
Fair Share Act
S.8577 / A.8953
Mamdani's signature tax proposal. It would authorize NYC to impose an additional 2% income tax on residents earning over $1M. This is enabling legislation — Albany passes the authorization, then the NYC City Council would need to pass a local law to actually implement it. Two political hurdles, not one. Estimated to raise $3–4B annually.
Invest in Our New York
IONY campaign
A coalition campaign pushing for state-level tax increases on the wealthy and corporations. Their 2026 package includes four bills: progressive income tax ($21B), corporate tax reform ($7B), capital gains surcharge ($12B), and heirs tax ($4B). Mamdani's office references the IONY proposals but the details sometimes differ between the mayor's framing and the actual bills — particularly on the estate/heirs tax threshold.

All References

Every source linked throughout this site, grouped by category. Bias noted where applicable.

Primary source documents
The original document from the Office of NYC Mayor Zohran Kwame Mamdani listing all proposed tax increases and state cost shifts. Published March 2026. Source of all revenue estimates and the state cuts table.
Progressive advocacy coalition
The campaign behind the four state-level tax proposals (progressive income tax, corporate reform, capital gains surcharge, heirs tax). Their one-pager provides bill numbers and revenue estimates. Note: this is an advocacy organization, not a neutral source.
Nonpartisan state policy journalism
Nick Garber, March 10, 2026. Source for legislative status of each proposal — which measures the Senate, Assembly, and Governor support or oppose. Used for all political status badges on the Proposals tab.
State legislation
The Fair Share Act — authorizes NYC to impose a 2% income tax surcharge on residents earning over $1M. Sponsor: Liu.
State corporate tax reform — raises taxes on companies with $2.5M+ in profits. IONY campaign bill.
Capital gains surcharge — state surcharge on capital gains income over $500K/year. IONY campaign bill.
Heirs Tax — overhauls inheritance taxation, taxing inheritances exceeding $250K. IONY campaign bill.
Progressive income tax — restructures NYS brackets with 11 new tiers above $500K, topping at 24% on $20M+. No increase under $323K. Makes temporary surcharges permanent. Projected $21B.
Case study sources
Nonpartisan fact-checking
Verified revenue figures ($2.2B year one, ~$3B year two) and spending allocations for the Massachusetts Fair Share surtax. December 2025.
News reporting
Institute for Policy Studies report showing Massachusetts millionaires grew 39% from 2022 to 2024 after the surtax. April 2025.
Industry publication
Details on first full year of Massachusetts surtax revenue and spending allocations. August 2024.
Nonpartisan academic
Pre-implementation analysis estimating 35% revenue reduction from behavioral changes (cross-border moves, tax avoidance). 2022.
Public media
Coverage of how Massachusetts allocated $2.4B in FY2026 Fair Share revenue. July 2025.
Nonpartisan government affairs
Detailed breakdown of Massachusetts surtax spending: schools, transit, roads, community college. January 2024.
Nonpartisan elections reference
Overview and results of Seattle's B&O tax restructure. Approved November 2025 with 68% support.
Government (includes opponent statement)
Official pro and con statements for Seattle Prop 2, including the opponent argument about job shifts to suburbs.
Nonpartisan research
Policy brief on progressive real estate transfer taxes across U.S. cities. 2024.
Nonpartisan state fiscal analyst
Analysis of LA's Measure ULA (mansion tax) revenue shortfall.
Government
Official revenue data for WA's capital gains tax: $786M year one, $433M year two. Source for both success and volatility case study cards.
Government
Presentation to House Revenue Committee showing Oregon estate tax receipts by year ($339M in FY2024). February 2025.
Center-right think tank
Data on which states have estate taxes, inheritance taxes, or both. Source for NJ repeal details. 2018.
NYC real estate & estate tax data
Real estate data
NYC median home prices by borough. Source for estate tax impact analysis.
Real estate data
NYC median sale price ($875K, Feb 2026) and market trends.
Legal reference
Explains the unlimited marital deduction, cliff effect, and 2026 exemption amounts.
Legal reference
Explains the NY estate tax cliff effect, lack of portability, and progressive rate structure.

How Would This Affect You?

12 questions. We estimate whether these proposals cost you or benefit you.

0 / 12
1. What's your household income?
S.1622 doesn't raise taxes under $323K. $500K–$1M may pay less. Fair Share Act adds 2% above $1M (city-level). Real increases start at $1M+.
2. Do you own your home?
Luxury surcharge hits $5M+ homes. Property tax hike is the fallback. Estate bill (S.914) excludes primary residences up to $1.75M if lived in 10+ years.
3. Children under 18?
School investment and class-size reductions are key spending items.
4. How many children under 6?
Free pre-K + subsidized childcare. More kids = more savings ($25K–$40K/yr each).
5. Paying for childcare or pre-K now?
Free childcare is the most concrete dollar benefit.
6. Significant investment income?
Capital gains surcharge targets profits over $500K/yr.
7. Non-home estate value?
Everything minus your primary residence and retirement accounts (both carved out by S.914). Think: second homes, investments, business equity, other assets.
8. Own or operate a NYC business?
Corporate tax + UBT hike affect businesses. UBT only hits unincorporated biz over $5M.
9. Retirement accounts?
401(k)/IRA/Roth/pension. S.914 excludes these from inheritance tax entirely. Still count toward the $750K estate threshold, but lighter exposure than taxable investments.
10. Taxable investments?
Brokerage, stocks, crypto — outside retirement. Double exposure: cap gains + estate tax.
11. Rely on NYC public services?
Transit, schools, shelters, health — all cut $2.3B by state.
12. Buy or sell precious metal bullion?
Sales tax exemption on purchases over $1K would be removed.
Your Impact Estimate
Answer the questions to see your result
COSTMIXEDBENEFIT
Complete the quiz to see your estimate.
🔒 Your answers stay in your browser only — nothing is sent to any server.
Caveats

Estimates only. Largest proposals need Albany. Revenue could be 30–60% lower. Scores = direct first-order impact.

⚙ Reading settings
Text size
113%
Font
💌 Send us feedback!
NYC Resident's Budget Committee
This is a one-person research project that aims to put together unbiased information on NYC and NY State's revenue-raising proposals. It's an alternative to sensationalist media coverage that can obscure the proposed changes and instead create a false sense of panic.
That being said, tongue firmly planted in cheek, I'm calling the author of this project the "NYC Resident's Budget Committee".
For feedback or comments, use the ✉️ contact button.
Last updated: 3/18/2026
🤖 Built with Claude AI
Human prompts + Claude AI. AI can make mistakes — verify independently.