Ask what the Peconic Bay transfer tax costs on a Southampton purchase, and most people will quote the headline number: 2.5 percent. Ask what happens the moment a contract price crosses $2,000,000, and the answer changes in a way that catches even repeat East End buyers off guard.
The tax does not rise smoothly as prices climb. It has a cliff built into it, one that erases a real exemption the instant a sale price ticks past two million dollars. In a market where that number sits closer to a starting point than a ceiling for many properties, the cliff shapes more closings here than the sticker rate ever will.
What The Tax Actually Is
The Peconic Bay Community Preservation Fund tax is a transfer tax collected on real estate conveyances across the five East End towns, Southampton among them. The Town of Southampton describes its current version as a 2.5 percent transfer tax, a figure that combines the original Community Preservation Fund levy with a 0.5 percent Community Housing Fund component added on top of it. The original CPF piece has been funding open space and farmland preservation since the late 1990s, and by one account has generated more than $2 billion for that purpose since its inception. The newer CHF layer directs its share toward workforce and first-time buyer housing programs instead.
Both pieces are collected together at closing and filed with the deed at the Suffolk County Clerk's Office, which means a buyer sees the full 2.5 percent as a single line item rather than two separate charges.
The Exemption That Disappears At $2,000,000
Here is the part that gets glossed over in most closing conversations. On an improved residential parcel, the first $400,000 of the sale price is exempt from the tax entirely, but only if the total consideration is $2,000,000 or less. Cross that line by even a dollar, and the exemption does not shrink. It vanishes.
That structure means two buyers paying nearly the same price can owe meaningfully different amounts in transfer tax, and the difference has nothing to do with the size of the exemption itself. It has to do with which side of $2,000,000 they landed on.
| Sale Price | Taxable Amount | Transfer Tax at 2.5% |
|---|---|---|
| $1,950,000 | $1,550,000 (after $400,000 exemption) | $38,750 |
| $2,050,000 | $2,050,000 (no exemption applies) | $51,250 |
A $100,000 difference in price should translate to a $2,500 difference in tax if the rate applied evenly. Instead, it produces a $12,500 difference, because crossing the threshold does not just tax the extra $100,000. It taxes the $400,000 that would have been exempt below the line.
For sellers pricing a home near that number, this is worth understanding before a listing goes live. A price set at $2,050,000 does not just ask a buyer to find an extra $100,000. It asks them to absorb an extra $12,500 in transfer tax on top of that, a detail that surfaces during attorney review, not during a walkthrough.
Who Actually Writes The Check
By statute, the tax is paid by the grantee, meaning the buyer, the person acquiring the property or an interest in it. That said, statutory liability and contract terms are two different things. Buyers and sellers can and do negotiate who ultimately bears the cost, particularly on deals close to the $2,000,000 line where the tax swings by five figures for reasons that have nothing to do with the home itself.
Anyone under contract in Southampton should confirm this allocation in writing before signing, not assume it follows the default. A closing attorney or title company will collect and remit the tax regardless of which party's funds cover it, but the contract of sale is where that decision actually gets made.
What The Program Is Actually Funding
The scale of this program is larger than most buyers expect. In the first quarter of 2026, the combined Community Preservation Fund and Community Housing Fund brought in more than $45 million across the five East End towns, according to figures reported by State Assemblyman Tommy John Schiavoni's office in June 2026. The CPF portion accounted for $36 million of that and the CHF added roughly $9 million more.
Southampton Town's own cumulative CHF collections have reached $50.8 million since the fund launched in 2023, out of roughly $88.1 million collected region-wide over that same span. That figure reflects the same math outlined above playing out across hundreds of individual closings, each one adding its share depending on where the sale price landed relative to that $2,000,000 line.
The One Exemption That Isn't Capped
There is a separate exemption that works differently from the improved-parcel allowance, and it matters for a specific buyer profile. A qualifying first-time homebuyer can apply for a full exemption from the tax, not a partial one, and this exemption is not limited by the $2,000,000 consideration cap the way the standard allowance is. Under the state tax law that governs the program, a first-time homebuyer is someone who has not owned a primary residence and is not married to someone who has, going back three years, and who does not own a vacation or investment property at the time of the sale. This exemption does not apply to vacant land, only to improved residential parcels.
The process runs through Southampton's own Community Preservation Fund office in Hampton Bays, where a buyer submits the exemption application along with a signed prior-year tax return, the executed contract of sale, and the recorded CPF form confirming payment. The exemption can be applied at closing directly or requested as a refund afterward if the paperwork was not in place in time. Refund paperwork must be collected in person once it is processed. It is not mailed.
A Few Questions Worth Asking Before Contract
Does the exemption phase out gradually as a sale price approaches $2,000,000, or does it just stop? It stops. There is no partial exemption between $1,999,999 and $2,000,000. The full $400,000 allowance applies below the threshold and none of it applies above.
Does the same exemption structure apply to vacant land? Vacant, unimproved residential parcels carry their own exemption, the first $100,000 of the sale price, under the same $2,000,000 consideration cap described above. The first-time homebuyer exemption does not extend to vacant land at all.
If my attorney tells me the tax is negotiable, what does that actually mean at the table? It means the statutory default, buyer pays, can be reallocated in the contract of sale. Whether that happens, and by how much, depends on the deal itself. Near the $2,000,000 line, this is worth raising explicitly rather than assuming it will be handled the way a prior closing elsewhere on the East End was handled.
Transfer tax mechanics rarely make it into a first conversation about a Southampton purchase, but they shape the real number a buyer needs at the closing table and the real proceeds a seller walks away with. Understanding where the exemption ends, and pricing or negotiating around it deliberately, is the kind of detail that separates a smooth closing from a surprising one.
If you are weighing a purchase or preparing to list near that threshold, Jane Babcook can walk through how the numbers apply to your specific transaction and what it means for your contract terms. Contact Jane to talk through the details before you sign anything.