NYC Mansion Tax Explained — 2026

If you're buying a home in New York City for $1 million or more, you owe mansion tax. It's a buyer-side tax — separate from transfer tax (which the seller typically pays) — and it has been tiered since 2019. Here's how it works in 2026, how much it actually costs, and the strategies buyers use when their purchase price is right near the $1M threshold.

What the Mansion Tax Is

The "mansion tax" is the common name for New York State's additional real estate transfer tax on residential property purchases of $1 million or more [1]. In New York City, an additional NYC-specific mansion tax is layered on top of the state base rate, making NYC mansion tax tiered and progressive.

2026 Mansion Tax Rates (NYC Residential)

Purchase PriceCombined Mansion Tax Rate
Under $1,000,0000% (no mansion tax)
$1,000,000 – $1,999,9991.00%
$2,000,000 – $2,999,9991.25%
$3,000,000 – $4,999,9991.50%
$5,000,000 – $9,999,9992.25%
$10,000,000 – $14,999,9993.25%
$15,000,000 – $19,999,9993.50%
$20,000,000 – $24,999,9993.75%
$25,000,000+3.90%

Rates apply to the entire purchase price, not just the amount above the threshold — that's why $1,000,000 vs. $999,999 is such a significant cliff [1].

Who Pays It

The buyer pays mansion tax at closing. It's filed with NYS Form TP-584 and the NYC RPTT return, through your attorney and title company.

Examples — Real Dollars

The $999K Strategy

Because mansion tax applies to the entire price once you cross $1M, there's a meaningful savings by staying just under. Common approaches:

None of these are DIY moves. They're coordinated through the attorney and lender.

Always work with a NY-licensed real estate attorney when mansion tax is in play. Tax allocation, Form TP-584 filings, and the boundary between sale price and personal property are legal decisions with audit consequences. Your attorney structures it correctly.

Long Island (Nassau/Suffolk) Mansion Tax

The 1% NY State mansion tax applies statewide at $1M+. The additional NYC-only mansion tax tiers do not apply outside NYC [1]. On Long Island, a $1,500,000 purchase generates $15,000 in mansion tax — not the higher tiered NYC amount.

What's Excluded

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Related Reading

Citations
  1. NYS Department of Taxation & Finance — Real Estate Transfer Tax / Mansion Tax: tax.ny.gov
  2. NYC Department of Finance — Real Property Transfer Tax: nyc.gov
  3. NYS Form TP-584: tax.ny.gov