Bar Harbor, Maine Property Tax: The Mil Rate, the 2021 Freeze, and the 2025 Reset

Bar Harbor's property tax story over the last decade is really two stories stitched together: a genuine, multi-year decline in the mil rate, followed by a 2025 townwide revaluation that reset the underlying math in ways that surprised many owners. Understanding both halves matters for anyone budgeting a Bar Harbor purchase, since a listing's currently stated tax bill may reflect an assessed value that predates the 2025 changes entirely.

Thinking about buying in Bar Harbor / Mount Desert Island? Talk to a local agent — free, no obligation.

The Decade in Rates: A Steady Decline Through 2023

Bar Harbor's municipal mil rate — the tax owed per $1,000 of assessed property value — fell in most years through the late 2010s and early 2020s: $11.56 per $1,000 in 2018, $11.85 in 2019, $11.90 in 2020, dropping more sharply to $9.74 in 2021, $9.32 in 2022, and $8.68 in 2023. On the surface, this looked like sustained tax relief for property owners. In practice, a falling mil rate on top of assessed values that hadn't been comprehensively updated since the town's last full revaluation in 2006 (with only a statistical update, not a full revaluation, in 2021) meant the town's assessed-value base was drifting further and further out of alignment with actual market values as home prices rose through the pandemic-era market and beyond.

The 2025 Revaluation: Why It Happened and What It Actually Did

Maine law requires municipal property assessments to fall within 70-110% of true market value. By 2025, Bar Harbor's assessor, Steve Weed, determined the town's assessed values — last comprehensively set in 2006 — no longer met that legal standard, and the town undertook its first full revaluation in nearly two decades, replacing outdated valuation models with current, data-driven ones. The results were dramatically uneven across individual properties: some newly constructed homes saw assessed values rise by as much as 289%, while parcels enrolled in Maine's current-use tax programs (agricultural, open-space, or working-forest classifications that value land below full market rate) saw decreases of up to 68%. Across the town's full property stock, the median assessed-value increase was $377, with roughly 60% of properties falling below that median figure — meaning the headline "dramatic increase" stories that circulated locally described the high end of the distribution, not the typical outcome.

Because a revaluation is designed to redistribute an unchanged total tax levy more accurately across all properties — not to increase total town tax collections — a genuinely counterintuitive result followed: the preliminary FY2025-2026 mil rate was actually estimated lower than what had initially been proposed, roughly $9.38 per $1,000, down from a proposed $10.76, precisely because higher assessed values across the board meant each dollar of tax needed was now spread across a larger total assessed-value base. Bar Harbor Story's coverage of the reassessment process documented real resident anxiety through the process — social media reaction beginning almost immediately after notices went out, one owner worried an 86% increase could threaten her business, and Town Councilor Randell Sprague noting residents repeatedly raised concerns simply described as "taxes, taxes." This page treats the $9.38 figure as the most current, best-sourced rate this research could confirm, but flags it explicitly as "preliminary" per its own source — a buyer should verify the finalized, current mil rate directly with the Town of Bar Harbor's Assessing & Tax office before budgeting around any specific number.

Local Guidance

This is exactly the kind of detail a Bar Harbor / Mount Desert Island specialist helps you navigate. Want an introduction?

Get a Free Agent Referral →

What This Means for a Buyer, Concretely

A listing agent's stated "current annual property tax" figure for a specific Bar Harbor property may reflect either a pre-2025 assessed value (if the listing data hasn't been refreshed since the revaluation) or a post-revaluation figure — and the difference between those two can be substantial for an individual property, even though the townwide average change was modest. This is a genuinely different situation than a market with a stable, long-unchanged assessment base: a Bar Harbor buyer should specifically ask their agent or the town's Assessing office for the property's current, post-revaluation assessed value and multiply by the finalized current mil rate, rather than trusting a listing sheet's stated annual tax figure at face value. New construction and recently renovated properties are the categories most likely to have seen a large assessed-value swing in the 2025 revaluation, per the town's own reported range of outcomes.

Separately, remember that Maine levies a state personal income tax on top of local property tax — unlike New Hampshire, where property tax substitutes for a broader state income tax. A relatively modest-looking Bar Harbor mil rate (roughly $9.38 per $1,000, versus double-digit rates common in some other Maine coastal towns) should not be read as evidence of an unusually low overall Maine tax burden; it describes the local property-tax component only.

Ready to talk to a local Bar Harbor / Mount Desert Island agent?

Tell us what you're looking for and we'll connect you with someone who knows this market.

Get a Free Agent Referral →
Independent research — no cost to you, no obligation.

Data sourced from: this site's own bar-harbor-me.md research file, drawing on directtaxloan.com's aggregation of Bar Harbor's historical mil rates (cross-referenced against the Town of Bar Harbor's own Current Tax Rate page, barharbormaine.gov/170/Current-Tax-Rate, which independently confirmed the 2023 rate), Bar Harbor Story's "Bar Harbor Property Reassessments Shock Many" (May 8, 2025), and Ownwell's Bar Harbor property-tax trends page. Nothing on this page is tax or legal advice; confirm the current, finalized mil rate and any specific property's post-revaluation assessed value directly with the Town of Bar Harbor's Assessing & Tax office before making a purchase decision.

Find a Local Specialist →