NYC pied-à-terre tax, explained.

The NYC pied-à-terre tax is an annual surcharge on residential property in New York City that is NOT the owner’s primary residence, owned by an individual (or look-through entity) where the value crosses defined thresholds. It sits ON TOP OF the existing property tax — the standard NYC property tax bill continues to apply; the pied-à-terre surcharge adds to it.

Three things distinguish this from prior pied-à-terre tax proposals (most notably the 2019-era S44B bill that died in Albany):

• It actually passed. Earlier proposals never cleared the State Legislature. The 2026 version moved in the post-mayoral-election political window with co-sponsorship from both the city (Mayor Mamdani) and state (Governor Hochul) executives.
• It uses a simplified two-phase bracket structure rather than the elaborate 8-tier condo schedule earlier proposals contemplated.
• It bakes in a DOF revaluation for condos and co-ops effective tax year 2028-2029, moving from the current low Class 2 income-approach valuations to a sales-based methodology. This is the structural change that produces Ken Griffin’s reported $4M tax bill in 2028-2029 vs his current $858K.

The first tax year is 2026-2027 (begins July 1, 2026); the program sunsets after tax year 2030-2031 unless the State Legislature renews.

The mechanics work differently in the initial phase (tax years 2026-2027 and 2027-2028) versus the post-revaluation phase (tax year 2028-2029 onward), because DOF needs two years to develop and publish the new sales-based condo / co-op valuation methodology.

Initial phase — tax years 2026-2027 and 2027-2028

1-3 family homes (Class 1): Surcharge applies at the standard 0.8% / 1.05% / 1.3% bracket on DOF market value (which approximates sale price for Class 1 properties).

Condos and co-ops (Class 2): Surcharge applies at elevated 4.0% / 5.25% / 6.5% brackets on DOF assessed value — which under the current income-approach methodology runs roughly 20% of sale price for typical inventory. The elevated rates are designed to produce an effective burden comparable to Class 1 at equivalent sale prices, given the lower assessed-value base.

Post-revaluation — tax year 2028-2029 onward

All property types use the standard 0.8% / 1.05% / 1.3% brackets on the new (presumably sales-based) DOF market value. The thresholds remain at $5M / $15M / $25M, but the valuation base for condos and co-ops jumps materially — for trophy buildings, by 10×+.

The article’s Griffin example illustrates: today his 220 CPS penthouse is DOF-valued at $15.5M (vs $238M paid), producing a $1.87M total bill in years 1-2 (existing property tax + pied-à-terre surcharge). After the 2028-2029 revaluation, when the DOF value moves toward market, his total bill rises to ~$4M.

The brackets are marginal (graduated), not cliff — each rate applies only to the slice of value within that bracket. Per current reporting on what passed:

Initial-phase condo / co-op brackets (on DOF assessed value)

• $0 – $1M: 0%
• $1M – $3M: 4.0%
• $3M – $5M: 5.25%
• $5M+: 6.5%

The $1M threshold on DOF assessed value translates to roughly $5M of sale price under the current Class 2 income-approach methodology — so the practical entry point is purchases above $5M.

1-3 family + post-revaluation brackets (on DOF market value)

• $0 – $5M: 0%
• $5M – $15M: 0.8%
• $15M – $25M: 1.05%
• $25M+: 1.3%

Run the calculator to model the math on your specific scenario.

The 2026 bill carries three exemption paths, per current reporting. The final DOF regulations are expected to refine the documentary requirements for each.

1. Owner’s NYC primary residence

The simplest path. The owner treats the unit as their primary residence — which generally requires:

• NYS resident income tax return filed at the property address
• STAR or Enhanced STAR exemption claimed at the address
• NY State homeowner tax credit (where applicable)
• Physical residency > 183 days per year at the address

If you have an NYC primary residence and a Hamptons second home, only the second home would be exposed. The pied-à-terre tax is specifically targeting non-primary residence ownership.

2. Occupied by owner’s family member

When the unit is the primary residence of an owner’s family member — current reporting indicates parent or child of an owner at minimum. The final DOF regulations will specify whether siblings, grandparents, grandchildren, or in-laws qualify.

3. Full-time tenant treating unit as NYC primary residence

An apartment rented out to a tenant who treats it as their own NYC primary residence is exempt. Important clarification: the lease alone may not be sufficient — the tenant must actually be a primary resident in NYC.

What this means for investment-grade rentals: A market-rate apartment rented short-term (corporate housing, executive rentals, Airbnb-style use) does NOT qualify. The exemption is structured to incentivize long-term rental of inventory to actual NYC residents — not to provide a workaround for investment owners.

The single biggest math gap in any generic pied-à-terre calculator is the assumed DOF ratio for condos and co-ops. The standard calibration is ~20% — which is roughly right for typical inventory ($2M–$10M condos, mid-tier co-ops). But for trophy buildings on Billionaires’ Row and equivalent inventory, DOF valuations run materially lower — often 5%-10% of sale price.

The Griffin example

Ken Griffin purchased the 220 Central Park South penthouse in 2019 for $238M. The current NYC DOF value: $15.5M. The implied DOF ratio: 6.5%, not 20%.

The structural reason: NYC Class 2 properties (condos and co-ops) are valued under the income approach per RPTL §581, which derives value from comparable rental income. Trophy condos that essentially never rent (and rent at prices that don’t reflect their sale-price value when they do) get valuations that bear little resemblance to actual market price.

What this means for the calculator

For a typical $5M-$10M Manhattan condo, the 20% calibration is approximately correct. For a $30M+ trophy condo, it’s likely overstating the initial-phase surcharge by 2x-3x.

The fix is simple: if you have your DOF Notice of Property Value (issued annually each January for the upcoming tax year), plug it in directly via the DOF override input on the calculator. For buildings without an obvious comparable, request the DOF Notice from your managing agent.

The 2028-2029 reckoning

The trophy DOF ratio problem largely goes away in tax year 2028-2029, when DOF moves to sales-based valuations for Class 2 properties. At that point, Griffin’s 220 CPS DOF value moves from $15.5M toward $238M (or whatever comparable-sales-based market value is at that point), and his pied-à-terre surcharge jumps from ~$1M to ~$3M annually. That’s the structural reset the bill builds in by design.

Co-ops are administratively different from condos in the way the pied-à-terre tax flows. The structural distinction: in a co-op, the legal owner of the real estate is the cooperative corporation — individual unit shareholders own shares + a proprietary lease, not real estate. DOF can only bill the legal property owner.

The mechanism

Step 1. DOF identifies units within the co-op building that are subject to the surcharge (i.e., owned by shareholders who don’t claim the unit as their NYC primary residence, family-occupied, or long-term-rental exempt).

Step 2. DOF adds the calculated surcharge for each affected unit to the building’s consolidated property tax bill. The bill goes to the co-op corporation, not to individual shareholders.

Step 3. The managing agent allocates the surcharge cost to the affected unit-owners — typically via one of two mechanisms: an increase to monthly maintenance charged only to the affected units (a unit-specific surcharge to maintenance) or a periodic special assessment against the affected units. Either way, non-pied-à-terre shareholders shouldn’t end up bearing the cost.

Why this matters for buyers

A co-op shareholder doesn’t receive a DOF letter for the pied-à-terre tax. They experience it as a monthly maintenance increase (typically a separate line on the building’s billing statement). This means:

• The board has to administer the collection — which creates intra-building political dynamics if it’s not handled cleanly
• Past-due collection mechanics involve the co-op proprietary lease (which gives the board strong collection powers — non-payment can trigger lease termination)
• Refinancing or selling the unit doesn’t escape the building’s allocation history — the buyer inherits whatever administrative posture the building established

Why this matters for boards

Co-op boards need to develop an administrative posture on the pied-à-terre tax allocation BEFORE July 1, 2026. Buildings with many non-primary-resident shareholders (the Park / Fifth Avenue pre-war crowd, the Billionaires’ Row newer co-ops) face particularly substantive administrative loads.

For shareholders in buildings with significant pied-à-terre exposure, the board’s administrative approach materially affects how clean the experience will be — worth asking about during purchase diligence.

DOF is expected to issue surcharge notices to affected owners (and co-op corporations for affected units) by August 30 of each program year. The notice will include the calculated surcharge amount and instructions for contesting.

The two grounds for contest

1. You qualify for an exemption. If you are the owner’s NYC primary residence, the unit is occupied by an owner’s family member, or the unit is leased full-time to a tenant who treats it as their NYC primary residence, you should contest by establishing exemption eligibility.

2. The DOF value is incorrectly assessed. If you believe the DOF assessed value used in the surcharge calculation overstates your actual market value, you can contest the underlying assessment through the standard NYC Tax Commission process. Note this is the standard property tax appeal route, not a pied-à-terre-specific one — the same process used to contest base property tax assessments.

Documentation for primary-residence exemption

• NYS resident return for the prior tax year
• STAR / Enhanced STAR application materials
• NYC Department of Taxation records
• Utility bills, voter registration, driver’s license — same documentation that’s standard for any primary-residence dispute

Documentation for family-occupied exemption

• Documentation of the family relationship (birth certificates, marriage certificates as applicable)
• The family member’s residency documentation at the address (same as primary-residence above, but for the occupier)

Documentation for tenant exemption

• The executed long-term lease
• The tenant’s NYS resident return filed at the address (proving they treat the unit as NYC primary)
• Lease history showing continuous full-time tenant occupancy

Practical timing

If you receive a notice in August and believe you qualify for an exemption, engage your tax attorney within 30 days. Standard NYC property tax appeal timelines apply; missing the appeal window typically forecloses challenge for that tax year.

The pied-à-terre tax is structurally aligned against foreign ownership in a way that doesn’t affect domestic dual-residence buyers as severely. The reasons:

No NYC primary residence exemption pathway

A foreign national who doesn’t file a NYS resident return at the address cannot claim the primary-residence exemption — even if the apartment is genuinely their NYC base when in the country. The exemption is fundamentally tied to NYS tax-resident status, which a foreign national generally isn’t.

Long-term rental exemption is structurally available

Foreign owners CAN qualify by renting the unit full-time to an NYC primary resident on a long-term lease. This is the primary work-around: convert the property from a sometimes- used pied-à-terre to a true investment rental. The trade-off: lose personal use, gain exemption from the tax.

Trust and LLC ownership look-through

Most foreign buyers hold NYC real estate through trust or LLC structures. The bill’s look-through provisions for entity ownership are still being finalized in DOF regulations — the question is whether the beneficial owner (the actual person behind the entity) is the one tested for the exemptions, or whether ownership through an entity automatically disqualifies primary-residence/family exemption claims.

For foreign buyers of trophy condo inventory (Faena, One57, 220 CPS, 432 Park, Park Grove in Miami via similar structures), this is the single most consequential regulatory question to track over the next several months.

FIRPTA + pied-à-terre tax interaction

The pied-à-terre tax doesn’t interact with the federal Foreign Investment in Real Property Tax Act (FIRPTA) — they’re separate regimes addressing different tax exposures. But for foreign owners planning an eventual sale, both apply: FIRPTA 15% withholding at sale plus annual pied-à-terre surcharge during the hold. The economics of foreign NYC trophy ownership materially tighten under both.

A legal challenge to the pied-à-terre tax is essentially certain. The plausible grounds:

Constitutional uniformity challenge

The New York State Constitution requires that property taxes within a class be assessed uniformly. Taxing some residential properties at higher effective rates than other (lower-rate) residential properties based on the owner’s primary-residence status is novel — and arguably runs against the uniformity principle. Counter-argument: it’s a separate surcharge layered on top of existing property tax, not a different rate of the base tax.

Equal protection

Whether the tax discriminates among similarly-situated property owners in a constitutionally impermissible way. The exemption structure (primary residence, family occupancy, full-time tenant) provides multiple legitimate pathways out — which probably defeats facial equal- protection challenges but invites as-applied claims from specific factual postures.

Federal commerce clause / dormant commerce clause

The tax disproportionately affects out-of-state and foreign property owners. Whether this rises to a federal commerce clause violation is genuinely uncertain — the tax is facially neutral (it applies to any non-primary- residence property regardless of owner’s state of residence), but the practical effect concentrates on out-of-state ownership.

Timing

Any legal challenge will take 18-36 months to resolve at the trial-court level, longer through appellate review. The tax will be collected during the litigation window unless a preliminary injunction issues. Owners who pay the tax during a pending challenge can be made whole if the tax is ultimately struck — but they bear the short-term cash flow impact regardless.