What does one thousand dollars cost you in East Hampton? If your purchase price crosses $2,000,000 on the way there, the answer is roughly ten thousand more in tax than you would have owed at $1,999,000.
That is not a typo and it is not a marginal rate doing what marginal rates normally do. It is a cliff, built into the Peconic Bay Community Preservation Fund tax, and it sits almost exactly where East Hampton's real estate market currently lives. Anyone shopping in this town this year should understand how it works before they get anywhere near a signed contract.
The Tax Nobody Budgets For
The Peconic Bay Community Preservation Fund tax, known locally as the CPF tax or the Peconic Bay tax, shows up on the closing statement as a line item that catches a lot of buyers off guard, especially those relocating from outside the five East End towns where it applies. It was created by voter referendum in 1998 to fund farmland and open space preservation, then extended by voters again in 2016 to run through 2050. In 2022, voters in East Hampton and three neighboring towns added a Community Housing Fund component on top of it.
The tax is paid by the buyer, called the grantee in the paperwork, and it is collected at closing when the deed is filed with Suffolk County. Since April 1, 2023, the rate in East Hampton has been 2.5 percent of the purchase price, made up of a 2 percent preservation tax and a 0.5 percent housing fund tax. Before that date the rate was 2 percent. There is no indication the rate or the exemption structure has changed since, so this is the framework buyers are working with today.
How the Math Works When You're Nowhere Near the Line
For most of the price range, the tax behaves the way you would expect. East Hampton allows a $400,000 exemption on improved residential property and a $100,000 exemption on vacant land, and that exemption comes off the top before the 2.5 percent rate applies, as long as the total consideration is $2,000,000 or less.
Take a $1,500,000 purchase. Subtract the $400,000 exemption and you are taxed on $1,100,000, which comes to $27,500. Straightforward, and proportional to price the way most people assume a tax like this works.
The Cliff at Exactly $2,000,000
Here is where it stops behaving. Once the purchase price hits $2,000,000, the exemption does not shrink. It disappears entirely. The full purchase price becomes taxable, with no $400,000 carved out first.
Run the numbers side by side and the discontinuity is obvious.
| Sale Price | Exemption Applied | Taxable Amount | CPF Tax Owed (2.5%) |
|---|---|---|---|
| $1,500,000 | $400,000 | $1,100,000 | $27,500 |
| $1,999,000 | $400,000 | $1,599,000 | $39,975 |
| $2,000,000 | $0 | $2,000,000 | $50,000 |
Move from $1,999,000 to $2,000,000, a difference of one thousand dollars in purchase price, and the tax owed jumps from $39,975 to $50,000. That is a jump of just over ten thousand dollars triggered by a change in price smaller than most people's closing gift budget. Economists call this kind of threshold a notch, distinct from an ordinary tax bracket where only the amount above the line gets taxed at the higher rate. Here, crossing the line taxes everything, retroactively, back to dollar one.
Why This Line Matters More in East Hampton Than Almost Anywhere Else
A cliff like this matters most where deals actually cluster around it, and East Hampton is exactly that kind of market right now. Multiple market trackers this summer place East Hampton's typical home value somewhere between the high $1 million range and just over $2 million, depending on how each source defines the boundary and which mix of sales it counts. Zillow's typical home value estimate for the area sits at roughly $1.77 million as of mid-2026, while other trackers following median sale and list prices put the figure closer to $1.9 million to just over $2 million during the same stretch.
Whatever the precise number on any given week, the range itself is the point. In a market where the typical transaction sits within a few hundred thousand dollars of $2,000,000, a meaningful share of real deals are landing close enough to the line that the exemption cliff is not a hypothetical. It is a live variable in the negotiation, not a footnote for buyers shopping well above or well below it.
What This Means If You're Negotiating
Because the tax is owed by the buyer and calculated at the moment of closing, the price on the contract, not the appraised value or the list price, is what determines which side of the line you land on. That gives buyers and their agents a real, legitimate reason to hold a firm number just under $2,000,000 rather than rounding up to meet a seller's ask, and it gives sellers a reason to understand why a buyer might resist a price that looks like a small concession on paper but represents a five-figure swing in the buyer's total closing costs.
There is also a first-time homebuyer exemption available in East Hampton, which can reduce or eliminate the tax for qualifying buyers, though the town's own application materials specify that this exemption does not apply to vacant land. Anyone who thinks they might qualify should ask their attorney to confirm eligibility well before the contract stage, since exemption paperwork is part of what gets filed alongside the deed.
None of this changes how a listing gets marketed or priced. It changes what a buyer should ask their attorney and lender to model before they get emotionally attached to a specific number, particularly when that number sits close to the $2 million mark.
What the Tax Actually Buys
It is worth remembering what this money funds, because it is not an abstract government fee. East Hampton has used its share of CPF revenue to preserve more than a third of the land within the town's own borders, along with funding water quality projects, wetlands protection, and historic preservation work across the East End. Voters approved this tax themselves, twice, and extended it through 2050. The line at $2,000,000 is a strange way for that funding structure to behave, but the funding itself is doing exactly what East End residents asked it to do when they created it.
A Few Questions Worth Asking Before You Sign
Does the seller ever pay any part of this tax? No. The CPF tax is a buyer's obligation under state and local law, collected from the grantee at closing.
Does the $2,000,000 threshold apply to vacant land the same way it applies to a house? Yes, the same all-or-nothing rule applies, though the exemption amount for vacant land is $100,000 rather than $400,000, and it is smaller to begin with.
Can a contract be structured to avoid the cliff? Not by disguising price. What buyers can legitimately do is negotiate the actual purchase price with this threshold in mind, and confirm with an attorney whether any statutory exemption, including the first-time homebuyer exemption, applies to their specific transaction.
If you are weighing an offer in East Hampton and want to understand exactly how a price near this line would affect your closing costs, that is precisely the kind of detail worth working through before you write a number into a contract. Irene Siconolfi has spent 25-plus years guiding South Shore and East End buyers through the parts of a transaction that never show up on a listing sheet. Work With Irene to get a clear read on what your specific purchase price actually costs, before you're locked into it.
