What Is a Flip Tax When Buying a NYC Co-op?
Quick Answer: What is a co-op flip tax? A flip tax is a transfer fee that a co op building charges when an apartment is sold, typically ranging from 1 to 3 percent of the sale price, though some buildings use a flat fee or a per-share formula instead. It is usually paid by the seller, but who pays it is negotiable,
and it goes to the building's reserve fund rather than to any government, which is why it is not actually a tax at all.
General guidance below reflects standard NYC co-op practice as of August 2026 and is not legal or tax advice.
Flip Tax at a Glance
• What it is: a private transfer fee charged by the co-op corporation, not a government tax
• Typical range: often 1 to 3 percent of the sale price, or a flat fee, or a per-share amount
• Who pays: usually the seller, though this is negotiable between buyer and seller
• Where it goes: into the building's reserve fund, which supports capital projects and building health
• Where it's disclosed: the building's proprietary lease, house rules, and offering plan
Why Do Co-ops Charge a Flip Tax?
The flip tax exists to strengthen a building's finances without raising monthly maintenance for every shareholder. When an apartment sells, the building collects the fee and typically directs it into the reserve fund, which pays for major capital work such as roof replacement, facade repair, elevator modernization, and boiler upgrades. For buyers, a well-funded reserve is a good sign, because it lowers the risk of a large special assessment shortly after closing. In that sense, the flip tax a seller pays today helps protect the value of the building you're buying into.
How Is a Flip Tax Calculated?
Buildings structure the flip tax in a few common ways, and it's important to confirm which one applies before you make an offer:
• Percentage of sale price: the most common method, often 1 to 3 percent
• Flat fee: a fixed dollar amount regardless of price
• Per-share formula: a set amount multiplied by the number of shares assigned to the unit
• Percentage of profit: less common, calculated on the gain between purchase and sale
Because these methods produce very different numbers, the same $1,000,000 sale could carry a flip tax of anywhere from a few thousand dollars to $30,000 depending on the building's formula.
Who Actually Pays the Flip Tax?
By default and custom, the seller usually pays the flip tax in a NYC co-op sale, but nothing makes this fixed. In a competitive market where a seller has leverage, a contract can shift some or all of the fee to the buyer, and in a slower market a buyer may negotiate for the seller to absorb it. What matters is that the responsibility is spelled out clearly in the contract of sale, so there are no surprises at the closing table.
A Financial Callout: Factor the Flip Tax Into Your Resale Math
Even if the seller pays the flip tax on your purchase, you will likely pay it when you eventually sell, so it belongs in your long-term math from the start. A 2 percent flip tax on a future sale is a real cost that affects your net proceeds, alongside transfer taxes and broker fees. Confirm the building's flip tax structure while your attorney reviews the proprietary lease and the offering plan on file with the New York State Attorney General's Real Estate Finance Bureau, so you understand the full cost of owning and later selling the apartment before you commit.
Planning Your Co-op Purchase
The flip tax is one of several co-op-specific costs that reward buyers who do their homework early. Understood upfront, it is simply a line item to plan around, not a reason to avoid co-ops, which often offer the most accessible entry prices in NYC. If you're weighing a co-op purchase, you can see how we guide buyers through a NYC purchase, browse active listings to compare co-op and condo options, follow current NYC real estate market trends, and learn how Daniel Blatman's NYC real estate expertise helps buyers understand the full cost of a co-op before making an offer.