State Guide

How to Appeal Your Property Taxes in North Dakota (2026 Guide)

Published August 10, 2026

If you own a home in North Dakota, your assessment notice shows a true and full value — and your tax bill is built from two smaller numbers derived from it. Only one of those three figures is the one you appeal, and mixing them up is the single most expensive mistake a North Dakota homeowner can make. The second most expensive is assuming there's a filing deadline printed on a calendar somewhere. There isn't. Your deadline is a meeting date.

North Dakota's deadline is a board meeting, not a date

There is no single statewide filing deadline in North Dakota. The appeal process is meeting-driven, and the calendar runs in three steps:

• Local board of equalization — April. A city board meets within the first fifteen days of April (N.D.C.C. §57-11-01). A township board meets in April (§57-09-01), on a day its clerk sets. Note that where one assessor serves several jurisdictions, the city auditor may designate a different day and hour within April, with published notice at least ten days ahead — another reason to work from your notice rather than the calendar. If your property sits in unorganized territory with no city or township board, the county board acts as your local board (§57-12-02).
• County board of equalization — first ten days of June. The county commissioners sit as the board of equalization within the first ten days of June (§57-12-01) and run a continuous day-to-day meeting until they finish.
• State Board of Equalization — second Tuesday in August. The state board meets the second Tuesday in August (§57-13-03) — August 11 in 2026, and August 10 in 2027.

You do not have to guess when your local board sits. §57-02-53 requires the assessor to deliver written notice of your parcel's true and full value for the current and previous year, and that notice must state the date, time, and location of the local board meeting and of the county board meeting. Delivery must be completed at least fifteen days before the local board meets. That notice is your deadline; treat any generic date you read online — including ours — as a planning estimate only.

Two things make that notice more useful than it looks. It goes to every parcel, not only ones whose value rose — there is no percentage trigger anywhere in chapter 57-02 — so a flat or falling value still gets you the board dates. And because it prints this year's and last year's true and full value side by side, the year-over-year move is on the page without you having to dig up last year's paperwork.

Two hard edges are worth knowing before April. First, the city board's power ends when it adjourns: after adjournment neither the city governing body nor the board may change or alter any assessment (§57-11-06) — the sole exception being property that "was not subject to taxation at the time the assessment was made," which is an exemption question, not a value dispute. Second, the county board may not reduce your assessment unless you appeal to it — in person, through a representative, or by mail or other communication setting out your reasons (§57-12-06(2)(a)). Nobody escalates your case for you.

Category	North Dakota
Assessment basis	You appeal the true and full value. Assessed value = 50% of it (§57-02-01(3)); residential taxable value = 9% of assessed (§57-02-27(1)(a)), ≈4.5% of true and full value
Assessment date	Value as of February 1 each year (§57-02-11(1))
Appeal deadline	A meeting date, not a fixed date — city board first 15 days of April, township board in April, county board first 10 days of June, state board second Tuesday in August
Where you start	Your local (city or township) board of equalization
Assessment cap	None. The 3% limit in §57-15-01.2 caps dollars levied by a taxing district, not your home's value
Can the board raise your value?	Yes — at all three levels (§57-11-03, §57-12-05, §57-12-06(2)(b), §57-13-04(3)(b))
If you miss the boards	Abatement to the county commissioners (ch. 57-23)

The three numbers on your notice — and which one to fight

North Dakota stacks three values, and each is a fixed fraction of the one above it:

1. True and full value — the assessor's opinion of what the property is worth, determined by considering "the earning or productive capacity, if any, the market value, if any, and all other matters that affect the actual value of the property" (§57-02-01(17)). §57-02-27.1 directs that all assessors and boards of equalization shall place the values of all items of taxable property at the true and full value.
2. Assessed valuation — exactly fifty percent of true and full value (§57-02-01(3)). This is not a discount or an appraisal judgment; it's arithmetic. The assessor's sworn return to the county auditor even recites it: the assessed value "is fifty percent of the true and full value of the property" (§57-09-06).
3. Taxable valuation — for residential property, nine percent of the assessed value (§57-02-27(1)(a)), after exemptions and other reductions (§57-02-01(15)). Nine percent of fifty percent is 4.5% of true and full value.

So a home at a $300,000 true and full value carries a $150,000 assessed value and roughly a $13,500 taxable value, and the mill rate is applied to that last figure.

Appeal the true and full value, and compare your comparable sales only against that number. If you pull three sales around $280,000 and set them beside the $13,500 taxable figure — or even the $150,000 assessed figure — you will conclude your home is over-assessed by an absurd margin. It isn't. Those two numbers are downstream arithmetic that every North Dakota home is subject to equally. The only question a board of equalization can answer for you is whether the true and full value is right.

There's a statutory hook worth quoting on that point. §57-02-27(3) bars the assessor from adopting "a lower or different standard of value because the same is to serve as a basis of taxation," and from valuing your property at what it would fetch "at auction, or at forced sale, or in the aggregate with all the property in the town or district." Instead the assessor "shall value each article or description by itself, and at such sum or price as the assessor believes the same to be fairly worth in money." That is a statutory argument for parcel-specific, market-based evidence — and against a county defending your number by pointing at a neighborhood trend.

North Dakota can raise your value — at every level

This matters more here than in most states. North Dakota is a backfire state at all three rungs, and the statutes are blunt about it:

• The city board "may change the valuation and assessment of any real property upon the roll by increasing or diminishing the true and full valuation thereof as is reasonable and just to render taxation uniform" (§57-11-03) — that closing qualifier is a real constraint, not decoration. The township board must correct the roll so each tract is entered "at the true value thereof" (§57-09-04) — which cuts both ways.
• The county board operates under a mandatory rule: a valuation "returned below its true and full value must be raised" to what the board believes the true and full value to be (§57-12-05(1)). It may also increase the assessment on an individual parcel after notice to the local board (§57-12-06(2)(b)).
• The state board "may increase the assessment on any separate piece or parcel of real estate," and its secretary must then mail you notice of the increase (§57-13-04(3)(b)).

Notice the asymmetry built into the county and state rules: the boards can reduce your value only if you appealed and made your reasons known, but their duty to raise an under-valued parcel doesn't depend on your appeal at all. In practice, increases on ordinary homes backed by solid evidence are uncommon. But the honest framing is the one the statutes support: file when your comparable sales clearly support a lower true and full value, and bring your cleanest set — not when the number merely annoys you.

One safeguard that no longer exists: §57-12-09, the old "notice of increased assessment to real estate owner," was repealed in 2015. The protection that replaced it is the universal §57-02-53 notice described above, which now goes out for every parcel with the current and prior year's true and full value side by side — so year-over-year movement is visible on the notice itself rather than only when a percentage trigger tripped.

You must start at the bottom — and the ladder is strict

North Dakota enforces exhaustion. The state board "does not have authority to reduce an assessment until the owner of the property has established to the satisfaction of the board that the owner had first appealed the assessment to the local equalization board ... and to the county board" (§57-13-04(3)(a)(1), echoed in §57-12-06(3)). Skipping April to go straight to June — or skipping both to show up in August — forfeits the rungs above. The same two-step requirement governs appeals about classification and taxable status, not just value (§57-13-04(4)).

There is a narrow structural exception: a new assessment made under §57-14-08 skips the local rung by design — an owner facing one need only have appealed to the county board before going to the state board (§57-12-06(3), §57-13-04(3)(a)(2)).

There's one narrow escape hatch. Under §57-13-04(9), a property owner may appeal to the state board if they "were foreclosed from attending assessment proceedings because of the failure to substantially comply with the notice requirements in chapters 57-02 or 57-12, or because of an irregularity in the township, city, or county assessment proceedings." If your §57-02-53 notice never arrived, or arrived fewer than fifteen days before the local board met, that is worth documenting at the time — not reconstructing a year later.

A second routing rule catches people who own property where they don't live: complaints by nonresidents of the township or city, and complaints about any assessment made after the local board met, are heard by the county board instead (§57-09-04, §57-11-03).

Missed the spring windows? The abatement route is still open

Because North Dakota's boards finish in August, most homeowners find this page after the ladder has closed for the year. There is a second, genuinely separate path: an application for abatement or refund to the board of county commissioners under chapter 57-23.

§57-23-01 puts "all assessments of any taxable property in excess of the full and true value in money" squarely within the chapter, and §57-23-04(1)(h) lists as a ground that "the assessment on the complainant's property is invalid, inequitable, or unjust." That is a value challenge, heard on evidence, and it does not require you to have gone to the boards first.

The timing runs two ways. For the current year, the Tax Commissioner's guideline is explicit that an abatement application "may be filed anytime after completion of equalization by the State Board of Equalization" — the August meeting. For a past year, the outer limit is on or before November 1 of the year following the year in which the tax becomes delinquent (§57-23-04(1)); the state's own worked example is that an abatement of a 2021 tax had to be filed by November 1, 2023.

Three practical cautions before you file one:

• Ask for the right number the first time. At the county hearing you are limited to the relief claimed in your application — you "may not submit evidence during a hearing ... suggesting a lower valuation, a lower tax levy, or a different taxable status than was requested" (§57-23-06(3)). Anchor the number in your application to your comps.
• You are consenting to an inspection. Filing "consents to inspection of the premises involved in the application" by the commissioners, the city or township, or the Tax Commissioner, for the purpose of making an appraisal (§57-23-05.1).
• If you paid under protest, the clock is short. You have sixty days from paying under protest to apply in writing for an abatement, adjustment, or refund (§57-20-20).

The 3% limit does not cap your assessment

North Dakota's 2025 property tax package gets described loosely, and one piece of it is widely misread. §57-15-01.2 provides that "property taxes levied in dollars by a taxing district may not exceed the greater of the base year levy increased by the allowable percentage limit or the adjusted year levy increased by the allowable percentage limit," and defines "allowable percentage limit" as three percent.

Read what that governs: dollars levied by a taxing district, without voter approval. It is not a cap on your home's true and full value, your assessed value, or your taxable value. Nothing in it stops your parcel from being revalued upward by 10% or 20% while the district's total levy stays inside 3% — when a district holds a dollar line, value shifts between parcels, and individual homes move in both directions. It is also far from absolute: the statute carries ten separate exclusions, including new levy authority approved by the electors or created by a change in state law, bonded-indebtedness levies, and special assessments. And a district may carry forward an unused excess percentage increase for up to five years, oldest first. North Dakota has no individual assessment cap. An appeal is the only mechanism that fixes your own number.

The same goes for the primary residence credit. It's real money — the credit "is limited to one thousand six hundred dollars" (§57-02-08.9(1)(a)), it has no age or income test, and the application is filed with the Tax Commissioner — not your county — and is due April 1 each year (§57-02-01.2(3)(a); the state's 2026 window ran January 1 to April 1). Don't confuse it with the separate homestead credit (§57-02-08.1), which does test age (65+) or disability and income. But the primary residence credit is a credit against tax due, applied after other exemptions and credits. It does not correct an inflated value, and it does not roll over — an over-assessed home with the credit is still an over-assessed home.

One more August item, easy to confuse with an appeal: by August 31 the county treasurer must send you written notice of the date, time, and location of each taxing district's public budget hearing and where its budget can be reviewed, with hearings held no earlier than September 7 (§57-15-02.2). Those hearings are about levies and budgets, not your valuation. Speaking at one is worthwhile; it is not an assessment appeal, and it will not reopen your value.

What evidence wins

Because the contested figure is true and full value, what persuades a board is recent, nearby sales of genuinely similar homes — comparable in size, age, condition, and location — with clear, stated adjustments for the differences. §57-02-27(3)'s instruction to value each property "by itself" and at what it is "fairly worth in money," and its express exclusion of forced sale prices, tells you both what to bring and what to leave out.

North Dakota gives you more to work with here than people expect. Under §11-18-02.2, a grantee presenting a deed to the county recorder must certify the full consideration paid on the face of the deed, and the recorder may not record a deed that doesn't comply — willfully falsifying that figure is a class B misdemeanor. So arm's-length sale prices are part of the county record — North Dakota is a disclosure state, and anyone who tells you your county records won't show sale prices is wrong.

The catch is the exemption list, which runs to nine categories (§11-18-02.2(6)): sales between family members or corporate affiliates, estate settlements, forced sales, mortgage foreclosures and tax sales, quitclaim deeds, sales with an indicated change of use, sales to or from religious, charitable or nonprofit organizations, property owned or used by public utilities, property classified as personal property, and property not assessable by law. Most of those are precisely the transactions that make poor comparables anyway — but it does mean the recorded-price universe has real gaps, not that prices are absent. How easily you can search it also varies county to county.

Underlying all of it is N.D. Const. art. X, §5: "Taxes shall be uniform upon the same class of property ... within the territorial limits of the authority levying the tax." North Dakota has no statutory median-ratio formula that converts a county-level ratio into a reduction on your home the way Texas or Pennsylvania do. Uniformity here operates through true and full value — which is another way of saying the same thing: win on comps.

Get your case built before April

North Dakota's window is short, it opens on a date printed on a notice you haven't received yet, and the boards above your local one will not hear you if you skip the first rung. PROppeal pulls licensed comparable sales for your address, values your home against the true and full value standard North Dakota actually applies — without the 50% and 9% arithmetic muddying the comparison — and tells you plainly whether your assessment is out of line and by how much. That's the difference between walking into an April board meeting with three defensible sales and walking in with an opinion.

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