State Guide

How to Appeal Your Property Taxes in Alaska (2026 Guide)

Published August 18, 2026

Alaska is the only state where your property tax appeal deadline depends entirely on which borough mailed your notice. There is no state property tax on homes here — boroughs and cities levy it — so there is no statewide filing date to circle. What Alaska gives you instead is a 30-day clock that starts the day your assessment notice was mailed, and — since a statutory change that took effect on January 1, 2025 — a Board of Equalization that cannot raise your value unless you ask it to.

Your deadline: 30 days from the mailing of your notice

AS 29.45.190(b) is blunt about it: you must submit a written appeal to the assessor within 30 days after the date of mailing of notice of assessment — "otherwise, the right of appeal ceases" unless the board finds you were unable to comply. That is one of the shortest windows in the country, and it runs from the mailing date printed on the notice, not the day it landed in your mailbox.

Because each borough mails on its own calendar, the real dates spread across the late winter and early spring:

• Municipality of Anchorage — the 2026 appeal deadline was February 11, 2026.
• Matanuska-Susitna Borough — notices go out near the end of each January, so the window runs through February.
• Kenai Peninsula Borough — notices are mailed March 1 each year; the borough published a March 30, 2026, 5:00 p.m. cutoff for that season.
• Fairbanks North Star Borough — the same 30-days-after-mailing rule, keyed to its own notice date.

One useful wrinkle: AS 29.45.180(a) tells you to advise the assessor of errors or omissions, and if the assessor issues a corrected notice, that corrected notice carries a fresh 30 days to appeal to the board. Calling the assessor early is not a way to burn your window — in Anchorage the Property Appraisal Division explicitly reviews and adjusts values during those first 30 days, and settling there costs nothing.

What you're appealing: full and true value as of January 1

Alaska has no assessment ratio to unwind. Your assessor sets full and true value, which AS 29.45.110(a) defines as "the estimated price that the property would bring in an open market and under the then prevailing market conditions in a sale between a willing seller and a willing buyer both conversant with the property and with prevailing general price levels." That is 100% of market value — Anchorage's own appeal form puts it in capital letters: your property should be assessed at 100% of market value.

The date matters as much as the standard. Value is set as of January 1 of the assessment year, so a sale, a price drop, or a repair estimate only helps if it speaks to what the home was worth on that January 1.

Category	Alaska
Assessment basis	Full and true value = 100% of market value (AS 29.45.110(a))
Valuation date	January 1 of the assessment year
Appeal deadline	30 days after your notice was mailed (AS 29.45.190(b))
Where you file	Written appeal to your borough/city assessor → Board of Equalization
Grounds	Unequal, excessive, improper, or under valuation (AS 29.45.210(b))
Can the board raise your value?	No — not unless you request it (AS 29.45.210(b), as amended by SB 179, ch. 28 SLA 24, effective Jan 1, 2025)
Next step	Superior Court within 30 days of the board's decision (AS 29.45.210(d))

The board can't raise you unless you ask — a 2024 change

This is the part Alaska homeowners most often get wrong, and the sources are part of why. AS 29.45.210(b) puts the burden of proof on you and limits the board to four grounds — "unequal, excessive, improper, or under valuation" — but on the question everyone actually worries about it is now explicit: "The board of equalization may not raise the assessment in the current year unless requested to do so by the appellant."

That protection is recent, and its date has two halves worth keeping straight. SB 179 was signed August 13, 2024 and codified as chapter 28 of the 2024 Session Laws of Alaska — but section 26 of that Act sets section 17's effective date at January 1, 2025. So the protection covers the 2025 and 2026 appeal seasons; it did not apply to appeals heard in 2024. Section 17 of the enrolled bill struck the old rule — printed in the bracketed capitals Alaska uses for deleted text, "[IF A VALUATION IS FOUND TO BE TOO LOW, THE]" — and replaced it with the may-not-raise language above. The same bill added a second protection worth knowing: if you submit a long-form fee appraisal and the board still rules against you, it must make specific findings on the record explaining why.

Be careful which source you trust here — including within a single borough. The Municipality of Anchorage currently publishes both answers, each attributed to the same subsection. Its appeal FAQ quotes the current rule correctly ("may not raise the assessment in the current year unless requested to do so by the appellant") and says the board may "lower, uphold, or at the request of the appellant, raise the value." But the appeal form you actually download still carries the pre-2024 sentence — and that form is stamped Ver. 03_19, a 2019 revision. (The FAQ's link to a 2026 form currently 404s, so the form a taxpayer can get for the 2026 season is the 2019-stamped one.)

The Fairbanks North Star Borough makes the point even more sharply: its Board of Equalization packet is marked revised March 2025 — seven months after the amendment took effect — and still prints "If a valuation is found to be too low, the Board of Equalization may raise the assessment." The Office of the State Assessor's board training deck says the same, and it is dated 2017.

So several offices repeating a superseded clause is one stale source counted several times, not several confirmations. Downstream documents are the last things to be updated, not the most current. The only text that settles it is the section itself as printed in the current official code — Alaska Statutes 2025.

Two honest caveats. First, the bar is on raising the assessment in the current year — it is not a ceiling on what next year's assessment can be, since each year is assessed fresh. Second, under AS 29.45.210(d) the assessor can also appeal the board's determination to Superior Court. That review is on the record built at the board, not a fresh valuation trial, so it is a narrow exposure — but it is not nothing.

The practical upshot: appealing in Alaska carries unusually little downside risk at the board. You still bear the burden of proof, so the evidence you bring still has to clearly support a lower value — but you are not gambling your current assessment to make the argument.

Comparable sales are harder here, and that's the whole game

Alaska is a non-disclosure state: sale prices are not published in the public property record. That is why Anchorage's appeal form tells appellants to obtain comparable sales "through personal research, local Realtors, appraisers, or the Property Appraisal Department" — the data exists, but you can't simply look it up the way a Texas or Florida homeowner can. Anchorage also requires your supporting documents to reach the assessor within 15 days of the close of the appeal period, so evidence-gathering is on a clock of its own.

The grounds the statute recognizes map directly onto evidence: recent sales of genuinely similar homes (excessive value), assessments of comparable neighboring properties (unequal value), and documented condition or characteristic errors on your record (improper value). Opinions, tax-bill totals, and year-over-year percentage jumps are not grounds — Anchorage lists "your taxes are too high" and "your value changed too much in one year" as explicit non-grounds.

After the board

If the Board of Equalization rules against you, AS 29.45.210(d) lets either you or the assessor appeal to the Superior Court, filed within 30 days of the board's decision and handled under the court rules that govern appeals from administrative agencies. Note also that appealing does not pause your tax bill: Anchorage requires payment by the due date even while an appeal is pending, and issues a refund with interest if your value comes down.

Get your case built

Alaska's 30-day window closes fast and the valuation date is fixed at January 1 — and since the board can't raise you unless you ask, the quality of your comparable sales is the entire case rather than a risk to weigh against it. PROppeal pulls licensed comparable sales for your address, adjusts them to your home, and tells you honestly whether your assessment is out of line before you commit to filing.

Property tax rules and deadlines vary by jurisdiction and can change — verify with your county before relying on this.