Seabrook, NH Property Tax: The Nuclear Plant Factor

One Town, One Rate, and One Very Large Taxpayer

Seabrook does not have a village-district precinct layered on top of its town rate the way Hampton Beach does a few miles north. Seabrook Beach, the town's own oceanfront census-designated place, is not a separate municipality and has no separate government or tax rate of its own; every property in town, from Seabrook Beach to Smithtown to the Route 1 corridor, is taxed under the same single Town of Seabrook rate, set once a year by the town's own assessing office. What is unusual about Seabrook is not the structure but the composition of the base being taxed. According to New Hampshire Bulletin's March 2026 reporting, which quotes Seabrook Town Manager William "Bill" Manzi directly, NextEra's payments on the Seabrook Station nuclear plant represent roughly 25 to 30 percent of the town's total tax levy. Very few towns anywhere have a single taxpayer carrying that much of the load, and it is a genuine, sourced, defining fact about how Seabrook funds itself.

The NextEra Deal: $45 Million Over Three Years, Set by Negotiation, Not Annual Assessment Fights

The plant's assessed value has swung dramatically over the decades, once valued above $2 billion and, at its lowest point, falling below $1 billion, according to NH Business Review. Rather than relitigate that valuation every year, Seabrook has for years negotiated pre-set, multi-year tax agreements directly with NextEra instead of an annual assessment fight. The most recent agreement, covering fiscal years 2024 through 2026, totals $45 million over three years, a 12.5 percent increase, roughly $5 million, over the prior three-year deal, and $9 million higher than the agreement struck six years earlier, which had totaled $36 million. These are large, predictable, negotiated payments that give the town a stable revenue floor most municipalities simply do not have access to.

A related, currently dormant legislative thread is worth knowing about rather than worrying over: in 2019, New Hampshire House Bill 1661 proposed removing the property-tax exemption for the plant's pollution-mitigation equipment, which would have raised the plant's taxable value and Seabrook's tax base further. It failed in 2020, and no revival of that specific bill has been confirmed in 2025 or 2026. Treat it as a piece of Seabrook's tax history, not a live proposal.

Does This Make Seabrook's Rate Lower? The Honest Answer Is Mixed

Here is where the story gets more nuanced than "the plant makes Seabrook cheap." A real-estate aggregator's 2025 New Hampshire property-tax-rate page, updated in December 2025, puts Seabrook's 2025 rate at $12.40 per $1,000 of assessed value. That is genuinely lower than Hampton Falls' $14.80 and North Hampton's $13.45, and it is notably lower than the roughly $8.37 to $8.66 reported for Rye a few towns north. But set against Hampton itself, the town most people cross-shop against Seabrook on this stretch of coast, the same source puts Hampton at $12.61 per $1,000, essentially the same figure. Seabrook's massive single-taxpayer contribution is real, but it has not produced a tax rate that stands out as unusually low among its working Seacoast neighbors; it has produced a rate that lands roughly where Hampton's does, and meaningfully above Rye's or New Castle's.

The most defensible way to hold both facts at once: Seabrook's nuclear plant contributes an unusually large share of the town's total tax revenue, a fact the town's own manager treats as a direct benefit to residents, but that has not made Seabrook uniquely cheap versus its Seacoast NH neighbors. Seabrook's school and municipal costs are also comparatively high for a town its size, and the net result is a rate roughly in line with Hampton's rather than a rate that undercuts it. A single very large taxpayer changes who pays the bill more than it changes the size of the bill.

What $12.40 per $1,000 Actually Costs, in Dollars

Two different home-value figures exist for Seabrook, and running the $12.40 rate against each gives a useful range rather than one falsely precise number. Zillow's Home Value Index puts Seabrook's typical home value at $669,842 as of a June 30, 2026 snapshot; at $12.40 per $1,000, that works out to roughly $8,306 per year in town tax. The U.S. Census Bureau's American Community Survey figure for Seabrook's median home value, a different and generally more conservative measure, is $443,500, which works out to roughly $5,499 per year at the same rate.

Both are illustrative multiplications, not real tax bills. New Hampshire towns periodically revalue their assessment rolls, and an individual parcel's assessed value on its actual tax card can run above or below what either a Zillow estimate or a town-wide Census median would suggest. The only reliable number for a specific address is the assessed value on that parcel's current tax card from Seabrook's own Assessing office, multiplied by the confirmed current-year rate.

A Structural Oddity: Town Tax and School Tax Are Roughly Equal

A New Hampshire tax-rate ranking tool, citing 2023 data, found something genuinely distinctive about how Seabrook's rate breaks down: the town-rate and school-rate components are roughly equal, where most New Hampshire towns pay roughly twice as much in school taxes as town taxes. It is a reasonable inference, though not independently confirmed, that Seabrook's large nuclear tax revenue is substituting for at least part of what would otherwise be a school-tax-dominated rate structure elsewhere in the budget. Treat that connection as plausible rather than proven until Seabrook's own budget documents are checked directly.

Why the Rate Appears to Have Fallen From $15.09 to $12.40

A separate secondary source, a Seabrook-focused tax-rate analysis, cited a 2023 rate of $15.09 per $1,000, meaning Seabrook's nominal rate appears to have fallen substantially, from $15.09 to $12.40, between 2023 and 2025. The most plausible explanation is a town-wide property revaluation, a common New Hampshire mechanism in which a reval raises assessed values across the board and mechanically lowers the nominal rate needed to raise the same revenue, rather than any actual cut in town or school spending. That explanation has not been independently confirmed against Seabrook's own Assessing office, and it should be verified there directly before anyone treats the rate drop as a real reduction in what the town spends.

No State Income Tax, No State Sales Tax: The Rest of the Picture

New Hampshire has no state income tax on wages and salaries and no general state sales tax. There is no offsetting state levy to weigh against the property tax rate the way a buyer moving from Massachusetts or another income-tax state might expect. In New Hampshire, property tax is essentially the entire state and local tax picture for a homeowner, which is part of why a rate as large as Seabrook's single-taxpayer nuclear contribution can still coexist with an overall town rate that lands in the same range as Hampton's rather than clearly beneath it.

Community Sentiment on the Plant's Tax Role Is Genuinely Mixed

It is worth noting that not everyone in Seabrook frames the plant's tax contribution the same way. Town Manager Manzi has described the plant as "woven into the fabric" of the community and has floated interest in hosting future nuclear development at the site, according to New Hampshire Bulletin's reporting. But residents quoted in the same piece, including David Wright and Marie Souther, expressed more cautious views, wanting clearer proof of direct benefits such as lower energy costs, or more health and safety testing. This page does not present the plant's tax contribution as a settled, uniformly celebrated fact; it is a real, economically significant, and genuinely debated part of how the town funds itself.

What This Page Could Not Confirm

A few things should be checked directly rather than assumed from this page. The single, definitive current-year rate is not fully settled: the $12.40 per $1,000 figure comes from a real-estate aggregator's December 2025 update, a 2023 secondary source cited $15.09 per $1,000, and neither figure has been independently pulled from the New Hampshire Department of Revenue Administration's own official rate report or from Seabrook's own Assessing office. Confirm the current figure directly against revenue.nh.gov or seabrooknh.info before relying on it for a purchase decision. Second, no specific, sourced oceanfront-versus-inland assessed-value premium was found for Seabrook Beach specifically; it is reasonable to expect beachfront parcels carry higher assessed values than inland Seabrook, consistent with the pattern at every other ocean market this site covers, but no confirmed dollar or percentage figure exists. Third, a clean, current Redfin median sale price and days-on-market figure specific to Seabrook and Seabrook Beach was not independently pulled for this page. None of these gaps should be filled with an assumed number. Verify each directly with Seabrook's own Assessing office, the New Hampshire Department of Revenue Administration, or Redfin, and consult a New Hampshire-licensed tax professional or real estate attorney before making a purchase decision based on property tax exposure.