Chatham Property Tax: The FY2026 Rate, the New Owner-Occupant Exemption, and an Unresolved FY2027 Number

The FY2026 Rate: $3.67 Per $1,000, Tied for the Cape's Lowest

Chatham's confirmed FY2026 tax rate is $3.67 per $1,000 of assessed value - independently confirmed via chathaminfo.com and Cape Cod Chronicle reporting, and already established on this site's own Dennis page as tied with Dennis ($4.29 for FY2026, but $3.67 at the same point the prior cycle) for the lowest bracket on the Cape, in a county where several towns run into the $5, $6, even $10-per-$1,000 range.

That low rate sits on top of a genuinely high tax base: Chatham's median single-family sale price runs $1.465-$1.5 million per CCIAOR's full-year 2025 MLS data, the highest of any Cape Cod town by a significant margin. A low rate against a high assessed value can still produce a substantial bill - which is part of why the FY2027 changes below matter as much as they do.

FY2027's Bigger Story: A 35% Exemption for Year-Round Owners, Passed 4-1

Effective with the fiscal year that began July 1, 2026, Chatham's Select Board voted 4-1 to adopt a 35% residential tax exemption for owner-occupied, year-round primary residences - Chair Dean Nicastro cast the lone dissenting vote (Cape Cod Chronicle, "Year-rounders To Get Property Tax Break... Select Board Votes Exemption Effective Next Year"). Roughly 3,000 year-round owner-occupied homes are expected to qualify; owners must reapply annually and show proof of residency, such as tax returns.

The stated rationale came from board member Stuart Smith - "We should be doing everything we can to keep [year-round residents] in this community" - and from advocate Seth Taylor, who framed it as a wealth-distribution fix: "The vast amount of wealth in this town in residential property is held by a disproportionate number of people who aren't residents." The town's own Summer Residents Advisory Committee (SRAC) formally opposed the measure; SRAC chair Jeff Spalter called it "a blunt instrument that merely moves tax dollars between residential classes."

The dollar impact is real and asymmetric. Per Cape Cod Chronicle's illustrative figures, on a roughly $1.6 million assessed home, a qualifying year-round owner-occupant would save on the order of $1,395 a year, while a comparable non-qualifying second-home owner would pay roughly $1,101 a year more - the exemption is a flat-percentage valuation offset funded by a rate increase that applies to everyone, residents and non-residents alike. That benefit essentially disappears on properties valued near $3.7 million or higher, where the exemption's fixed-dollar value stops offsetting the higher rate.

The Underlying FY2027 Rate Itself Is Unresolved - Two Numbers That Don't Match

Separately from the exemption, the plain uniform tax rate Chatham is moving toward for FY2027 is genuinely contested in the public record, and this page states both figures rather than averaging or guessing. One Cape Cod Chronicle article ("Year-rounders To Get Property Tax Break...") cites the rate moving from $3.47 to $4.10 per $1,000. A separate, apparently later Cape Cod Chronicle article ("Chatham Tax Rate Projected To Increase 5 Percent...") cites $3.67 (FY2026) rising to $4.34 (FY2027 projected), tied to a $62 million FY2027 budget - roughly 10% higher than the prior year - against only 4.3% property-value growth.

These two figures don't reconcile, and no attempt is made here to force them to. The most plausible explanation is timing: the two articles most likely reflect different points in the town's budget and rate-setting calendar - an earlier spring estimate made around the time of the exemption vote itself, versus a later summer classification-hearing estimate built on updated budget numbers. Massachusetts towns typically don't finalize a given fiscal year's rate until November or December, months after that fiscal year technically began the prior July 1, so neither published figure should be treated as final. Confirm the certified FY2027 rate directly with the Chatham Assessor's Office once it's set.

That same classification hearing confirmed the town is keeping a uniform tax-classification factor of "1" across residential, commercial, and industrial property - meaning all three classes are taxed at the identical rate rather than shifting more burden onto businesses - for what the reporting calls "possibly the last time" before the new residential exemption reshapes the picture going forward.

Why This Is Happening: The Income Math Behind the Fight

The exemption fight traces directly to a stark income-to-home-price gap. Census ACS puts Chatham's median household income at $85,167 (2020-2024, in 2024 dollars), against a median home price north of $1.3 million by every 2025-2026 market source - a home costing roughly 15-16 times median household income. That's the same underlying affordability pressure behind Chatham's 2025 Town Meeting decision to accept the Commonwealth's "Seasonal Communities" designation under the 2024 Affordable Homes Act, a status Chatham shares with eight other Cape towns and that unlocks state-level housing-policy tools aimed at the same problem.

Put simply: the exemption shifts tax burden toward the second-home and investment-property owners who hold a large share of Chatham's residential wealth, in an attempt to help year-round, working residents - the people who staff the town's fire, police, healthcare, school, and hospitality jobs - stay in a town where local wages don't come close to covering a median home purchase.

How Chatham Compares Regionally

At $3.67 per $1,000 for FY2026, Chatham sits at or near the very bottom of the Cape's rate spectrum, alongside Dennis's $4.29 and well below Harwich's $5.69. Chatham is also now the only one of the three moving toward a residential exemption for FY2027 - Dennis has only discussed the idea without adopting it, and Harwich's Select Board explicitly considered and rejected a residential exemption at its own November 2025 classification hearing. That makes Chatham the first of this site's three Lower/Mid Cape tax pages to actually adopt one, even as its own underlying rate for FY2027 remains unsettled in the public record.

Proposition 2½: The Statewide Cap Behind the Rate

Like every Massachusetts municipality, Chatham's levy operates under Proposition 2½, the 1980 statewide law that caps how fast a town's total property tax collections can grow year over year, regardless of how much individual assessed values rise. It works through two related mechanisms: a levy ceiling that keeps the total levy at or under 2.5% of the town's total assessed value, and a levy limit that restricts year-over-year levy growth to 2.5% regardless of value increases. New construction falls outside that annual growth cap, and a town can only exceed its regular limit through a voter-approved override or a debt exclusion tied to specific borrowing.

The cap slows the pace of levy growth, it doesn't freeze it, and it doesn't determine how the levy is distributed among property owners - that's exactly the lever the residential exemption pulls, shifting who within Chatham's existing levy pays more or less, rather than changing the town's total collections.

Confirming Current Figures Before You Rely on Them

Two separate things are still unsettled here: the certified FY2027 uniform tax rate itself (reported two different ways, as detailed above) and the practical mechanics of who ultimately qualifies for the new 35% exemption each year. Both should be confirmed directly rather than assumed from this page.

Before relying on any number here for a purchase decision, a rental pro forma, or a household budget, confirm the current certified rate, your property's specific assessed value, and current exemption eligibility directly with the Chatham Assessor's Office. This page reflects independent research, not tax or legal advice, and a licensed tax professional should be consulted for guidance specific to your situation.