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News · September 1, 2026

How NYC's Department of Finance Decides You Don't Live There: The Data Sources Behind Pied-à-Terre Tax Determinations

DOF uses a strict evidence hierarchy—from tax returns to voter registration—to determine which expensive properties qualify as non-primary residences under the new surcharge.

New York Central Park
Photo by Jermaine Ee on Unsplash

The January 5 Snapshot Rule

New York City's Department of Finance determines whether your expensive property owes the pied-à-terre surcharge based on a single date: January 5 of the year before the tax bill. DOF looks at whether the property was your primary residence on that specific taxable status date, according to the adopted rules published in August 2026.

Moving into the property after January 5 won't change that year's surcharge bill. The determination covers use by the owner, immediate family members (spouse, child, sibling, parent, grandparent, or grandchild), or a tenant under a qualifying 12-month arm's-length lease.

Roughly 24,000 properties citywide would owe the surcharge if they're non-primary residences, according to Conquest's analysis of DOF's July 2026 Supplemental Market Value Roll. Most are primary residences and owe nothing.

The Evidence Hierarchy DOF Uses

DOF's final rules establish a strict evidence hierarchy for the 2026-27 fiscal year. The department first checks whether owners listed the property as their permanent home address on state or federal income tax returns, or received residency-based exemptions like the STAR credit.

Unless DOF has 'credible information indicating otherwise,' properties qualify as primary residences if owners claimed them on tax returns or received homeowner, veterans, or senior citizen exemptions tied to residency status.

Starting with fiscal year 2027-28, DOF gains broader authority to examine additional records. The rules allow the department to consider whether owners occupied properties 'for most of the prior calendar year' and whether properties appear as permanent residences in other city records.

What Records DOF Can Access

Professional commentary on the adopted rules identifies the data sources DOF may draw from in later years: driver's licenses and state ID cards, voter registration records, utility and occupancy records, lease and rent-payment records, trust agreements for entity ownership structures, and sworn affidavits.

The surcharge applies to condos and co-ops with DOF market values above $1 million, with rates of 4% on the full market value from $1-3 million, 5.25% from $3-5 million, and 6.5% above $5 million. Houses face lower rates but higher thresholds.

Manhattan accounts for roughly 17,000 exposed condo and co-op units, with average surcharges of about $69,000, according to Conquest's analysis. Brooklyn follows with 3,300 exposed houses averaging $53,000 in surcharges.

Owners who received DOF's 'You may be subject to...' notices have until October 6, 2026 to apply for primary residence exemptions—extended from the original August dates. First payments come due January 1, 2027.

Frequently asked questions

Is my apartment subject to the pied-à-terre tax if I moved in after January 5?

Moving into the property after January 5 won't change that year's surcharge bill. DOF determines whether your expensive property owes the pied-à-terre surcharge based on whether the property was your primary residence on January 5 of the year before the tax bill.

How much is the tax on my $2 million condo?

The surcharge applies to condos and co-ops with DOF market values above $1 million, with rates of 4% on the full market value from $1-3 million. For a $2 million condo, you would pay 4% of the full $2 million market value if it's not your primary residence.

Does claiming my property on tax returns exempt me from the pied-à-terre tax?

Properties qualify as primary residences if owners claimed them on tax returns or received homeowner, veterans, or senior citizen exemptions tied to residency status, unless DOF has 'credible information indicating otherwise.' DOF first checks whether owners listed the property as their permanent home address on state or federal income tax returns.

Sources

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