A seller sat down at a listing consultation this summer with a number in mind: list at $2.05 million, leave room to negotiate down to $2 million if it came to that. It sounded like a reasonable cushion. Then the math on New Jersey's mansion tax came up, and the cushion disappeared. Landing at $2 million instead of $2.05 million did not just mean a smaller sale price. It meant crossing into a different tax tier entirely, one that applies to the whole price, not the sliver above the line.
That tier boundary sits almost exactly where a meaningful share of Tewksbury Township's current inventory lives. Five-bedroom homes here currently carry a median listing price above $2.1 million, and the township's broader luxury segment, a category that includes homes on Hollow Brook Road, in the Mountainville section, and on properties bordering the Tewksbury Trail System, currently shows a median listing price near $1.19 million with individual estates reaching well past $2 million. For sellers in that band, New Jersey's 2025 overhaul of the mansion tax is not background noise. It is a line item that can move by tens of thousands of dollars based on where the final number lands, and since July 2025 it is the seller, not the buyer, who owns that number.
What Actually Changed, And When
New Jersey's mansion tax has existed since 2004 as a 1 percent fee on residential sales over $1 million, paid by the buyer at closing. That structure held for two decades. On June 30, 2025, Governor Phil Murphy signed legislation, part of the fiscal year 2026 state budget package, that rewrote both halves of that sentence. The fee is now officially called the Graduated Percent Fee, it scales from 1 percent up to 3.5 percent depending on price, and for any contract fully executed on or after July 10, 2025, the seller pays it. The full text of the bill is available through the New Jersey Legislature's own bill tracking page, which is worth reading directly if you want the language rather than someone's summary of it.
A grace window existed for contracts signed before July 10, 2025 that recorded their deed by November 15, 2025, allowing sellers caught mid-transaction to claim a refund of anything paid above the old 1 percent rate. That window has closed. Every Tewksbury contract signed from here forward operates under the new rules, in full.
The Tiers, And Why The Whole Price Counts
The rate schedule looks simple until you notice how it applies. It is not marginal, the way income tax brackets work. It applies to the entire sale price once a threshold is crossed.
| Sale Price | Graduated Percent Fee |
|---|---|
| $1,000,000.01 to $2,000,000 | 1% |
| $2,000,000.01 to $2,500,000 | 2% |
| $2,500,000.01 to $3,000,000 | 2.5% |
| $3,000,000.01 to $3,500,000 | 3% |
| Above $3,500,000 | 3.5% |
This fee stacks on top of New Jersey's standard Realty Transfer Fee, which every seller has paid since 1968 regardless of price. It does not replace that fee. It sits on top of it.
The Line Tewksbury Sellers Keep Landing On
Here is where the math stops being abstract for this particular market. At exactly $2,000,000, the fee is 1 percent, or $20,000. At $2,010,000, ten thousand dollars higher, the entire sale crosses into the 2 percent tier, which applies to the full price, not just the increment. The fee becomes $40,200. A seller who accepts ten thousand dollars more nets roughly ten thousand dollars less once the tax is recalculated at the new rate.
This is not a hypothetical band on a statewide chart. It is the exact price range where a meaningful portion of Tewksbury's estate and equestrian inventory sits. A multiple-offer situation with an escalation clause, common on well-marketed country properties with acreage and Tewksbury Trail System access, can push a final number across that line without anyone stopping to check what it costs. An attorney reviewing the contract before it goes out of review is the point where that check should happen, not after.
The same cliff repeats at $2,500,000, at $3,000,000, and at $3,500,000, each time recalculating the fee on the full price rather than the excess. Sellers pricing an estate anywhere near these numbers are effectively pricing around four separate thresholds, not one smooth curve.
Not The Same Tax You Might Already Know About
Tewksbury sellers who have looked into farmland assessment already know the township has its own tax quirks tied to land use, where a property's annual tax bill depends on how the land is actively farmed, not on what the deed says. That is a real and separate consideration for anyone selling acreage here, and it is worth understanding on its own terms.
The Graduated Percent Fee is a different animal entirely. It is not annual, and it has nothing to do with land use or farm status. It is a one-time fee triggered by the sale price at the moment the deed is recorded, and it applies to Class 2 residential property, Class 3A farm property with a residence, Class 4A commercial property, and cooperative units alike. A working farm with a farmhouse on it does not get an exemption from this fee just because it qualifies for farmland assessment on its annual tax bill. Vacant land without a residence, classified separately as Class 1, is exempt. A residence on the property changes that.
What This Means Before You Set A List Price
A few practical implications follow directly from how the fee is structured.
- The rate is set by the final contract price, not the list price, so a listing strategy built around inviting offers above ask needs a second look at what happens to net proceeds if an offer lands just over a tier boundary.
- The fee is a statutory seller obligation, but nothing stops a buyer and seller from negotiating who actually bears the cost in the contract itself. That negotiation happens far more smoothly when a seller's attorney raises it before an offer is accepted, not after.
- If a sale includes substantial furniture, art, or equestrian equipment separate from the real property, a documented, arm's length allocation of some consideration to that personal property can reduce the base the fee is calculated on. This has to be defensible and drafted by an attorney, not estimated after the fact.
- Anyone working from a net sheet template built before July 2025 is working from the wrong assumption. The fee used to be the buyer's line item. It is not anymore.
None of this replaces a conversation with a real estate attorney who can look at a specific contract and confirm the numbers. It is exactly the kind of detail worth raising at the listing consultation stage, before a price strategy gets built around a number that turns out to sit on the wrong side of a tier line.
FAQ
Does this fee apply to Tewksbury properties with farmland assessment? Yes, if the property includes a residence. Class 3A farm property with a residence is explicitly included in the fee's scope. Farmland assessment affects the annual property tax bill. It does not exempt a sale from the Graduated Percent Fee.
Can a buyer agree to cover this cost instead of the seller? The statutory obligation to pay and remit the fee rests with the seller, but buyer and seller can privately agree in the contract to allocate the economic cost differently. That agreement needs to be in writing and reviewed by an attorney, since the state still looks to the seller if there is ever a shortfall.
Is there any discount for seniors or disabled sellers, the way there is on the standard transfer fee? No. The standard Realty Transfer Fee has partial exemptions for qualifying senior and disabled sellers. The Graduated Percent Fee does not carry that same provision.
Selling an estate or equestrian property in Tewksbury Township now means pricing around a tax that changed hands less than a year and a half ago, at exactly the price points where much of this market's inventory sits. Getting the net proceeds math right before you set a list price, not after an offer arrives, is the difference between a clean closing and an unwelcome surprise at the settlement table. If you are weighing a sale in Tewksbury and want a clear picture of what today's rules mean for your specific property, Hope Salamone Homes offers a complimentary home valuation and consultation to work through the numbers before you list.
