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

Your Notice of Property Valuation and Tax Changes arrived by July 22. The number printed on it as your taxable value is about 55% of what the county thinks your home is worth, and if you compare that figure to what the house down the street just sold for, your home will look dramatically under-assessed.

It probably is not. That 55% is a statutory exemption, not a discount the assessor gave you, and it is the single most common reason Utah homeowners talk themselves out of an appeal they would have won.

This guide fixes that arithmetic first, then walks the September 15 deadline, the evidence Utah boards actually require, and two provisions in the Utah Code that are unusually favorable to homeowners and almost never mentioned.

Deadline check. Utah's 2026 appeal deadline is September 15. The Utah DIY Appeal Kit has the county-by-county filing rules, the evidence standards each board publishes, and a ready-to-edit appeal, for $29 flat. See the Utah kit

Why does my Utah notice show a value 45% lower than my home is worth?

Because of the residential exemption.

All property in Utah is assessed at fair market value as of January 1 under Utah Code §59-2-103(2). Residential property then receives an exemption equal to a 45% reduction in value under §59-2-103(3). A qualifying primary residence is therefore taxed on 55% of market value.

The arithmetic you need: divide the taxable value by 0.55 to recover the county's actual market-value opinion.

A taxable value of $412,500 means the county believes your home is worth $750,000. That is the number you are appealing, and that is the number your comparable sales have to beat. State your own opinion of market value on the application, never the taxable figure.

Two limits on the exemption matter:

• It covers no more than one acre of land per residential unit.
• It is limited to one primary residence per household, though it does also apply to a residential property that is the primary residence of a tenant.

Cabins, second homes, short-term rental use, and condos in rental pools do not get it. If your home is taxed at 100% instead of 55%, it will look catastrophically over-assessed when the real issue is exemption status, not value. Check that before you build a valuation case.

When is the Utah property tax appeal deadline in 2026?

September 15, 2026.

The statute, §59-2-1004(3)(a), is slightly more complicated than that: you must apply on or before the later of September 15 of the current calendar year, or the last day of a 45-day period beginning on the day the county auditor provides the notice under §59-2-919.1.

Note the word: provides, not mails. Because §59-2-919.1(5) lets the auditor deliver the notice electronically where you have elected it, your 45-day clock can start on an email rather than a postmark.

In practice, September 15 controls. Notices must go out on or before July 22, and July 22 plus 45 days lands around September 5, which is earlier. The 45-day branch only buys you extra time if your county sent the notice after roughly August 1. Do not plan around it.

Counties publish this inconsistently. Salt Lake and Weber state the full whichever-is-later rule, and Salt Lake also opens its window August 1. Utah County and Davis County publish a flat September 15. Davis has at times carried conflicting dates on its own site. Trust the date printed on your own valuation notice, and call the auditor if the website disagrees with it.

If the last day falls on a Saturday, Sunday, or legal holiday, §68-3-7 runs the period to the next business day. You can compare Utah's calendar against every other state on our national appeal deadline calendar.

Who do I file my Utah appeal with?

The County Board of Equalization, through the county auditor or clerk-auditor. Not the assessor.

This surprises people, but it follows from how Utah is structured: under §59-2-1001 the county legislative body is the board of equalization, and the county auditor is its clerk. The assessor set the value; a different body reviews it.

Most counties then route the case to an appointed hearing officer who takes evidence informally and writes a recommendation the board approves. Section 59-2-1001(3) lets the board appoint a licensed appraiser, or a non-appraiser competent in real estate, finance, economics, public administration, or law who has completed a Tax Commission-approved course.

Hearings are informal. You can appear by phone or video, send a written representative (Davis requires the authorization to be notarized), or waive appearance entirely and be decided on the paper file. Section 59-2-1004(2)(d) requires every county to offer electronic filing, and most counties want it filed online.

The board must decide within 60 days. If it does not, and no extension was approved, §59-2-1004(8)(e) requires the county legislative body to list your appeal by name and parcel number on its next meeting agenda and hear it.

What is the strongest evidence in a Utah appeal?

A recent sale of your own home, and the statute makes it close to unrebuttable.

Under §59-2-1004(6), if you submit a "qualifying contract", meaning a completed arm's-length sale of the subject residential property executed within six months before or after January 1, the board may reject that price on only three specific grounds:

1. The sale was not arm's-length;
2. Market conditions changed between the contract and the lien date; or
3. The property physically changed.

That is the whole list. If you bought your home in, say, October 2025 or March 2026 in a normal arm's-length transaction, your purchase price is very hard for a county to argue around.

In that same class of residential appeal, §59-2-1004(6)(c) provides that the board may not consider any evidence or information other than what the parties submitted. The board cannot go looking for material to use against you.

Short sales and bank-owned sales are expressly discounted, so this provision protects genuine market transactions only.

The provisions above are worth real money and almost nobody cites them. The Utah DIY Appeal Kit sets out each one with the code section behind it, plus what Salt Lake, Utah, Weber and Davis counties each demand from your evidence packet, for $29. Get the Utah kit

What if I do not have a recent purchase?

Then you build a comparable-sales case, and Utah gives you a second, mandatory route alongside it.

The 5% equalization rule

If your value deviates 5% or more from the assessed value of comparable properties, §59-2-1004(8)(h)(i) says the board SHALL adjust to the equalized value. Not may. And if no evidence is presented on equalization, the issue is presumed met. This is an unequal-assessment argument, distinct from arguing market value, and you can run both.

The qualified real property burden shift

If you won an appeal last year, the property was not improved since, and this year's value exceeds the inflation-adjusted value, fair market value is presumed equal to the inflation-adjusted value and the county carries the burden. Utah County states that such an appeal may be filed without attaching additional evidence at all.

For an ordinary comparable-sales case, what the counties want:

• Three to five comparable sales as full MLS listing printouts, similar in age, size, style, quality and condition, in the same neighborhood. Salt Lake wants a minimum of three and prefers five. Weber wants three with a specific thirteen-field data set. Davis wants three, ideally within a mile.
• Sales from the 12 months BEFORE January 1. Only Salt Lake publishes a hard rule (within one year of January 1), but 12 months is the window that is safe in every large county, and every county says evidence closest to January 1 carries the most weight.
• Your property record card from the assessor, marked up with every factual error: acreage, finished and unfinished square footage, bedroom and bath count, year built. That route lives in Utah Admin. Code R884-24P-66.
• Photographs and contractor bids documenting deferred maintenance or damage as of January 1.
• A single dollar figure for your own opinion of market value. Section 59-2-1004(4)(a)(i) and every county form require it, and an appeal without a number can be dismissed.

Note that a loan application is expressly not acceptable evidence in Weber County.

What are the biggest mistakes Utah homeowners make?

Comparing the taxable value to market prices. Divide by 0.55 first. This is the mistake that stops valid appeals before they start.

Filing without evidence. Utah County says appeals filed without sufficient evidence may be dismissed; Weber says they will be. You typically get a Notice of Intent to Dismiss and 10 calendar days to cure, and no more.

Assuming the 45-day branch gives you extra time. It almost never does. September 15 is your date.

Forgetting the board can raise your value. Salt Lake, Utah, and Weber county forms all say the board may raise, lower, or maintain it.

Not paying the bill. Tax notices go out around November 1 and taxes are due November 30. Late payment triggers a 2.5% penalty (1% if cured by January 31) plus interest, appeal pending or not. If you win, the county refunds you, and under §59-2-1004(9)(a) the refund follows whoever paid the tax, even if you no longer own the property.

Assuming a win carries forward. You must appeal each year separately. The one exception is the qualified-real-property burden shift above.

Confusing the disaster provision with the error provision. Section 59-2-1004.5 is the natural-disaster adjustment and requires a decrease of at least 30% of taxable value from an explosion, fire, flood, storm, tornado, wind, earthquake, lightning, or adverse weather. The general factual-error route is R884-24P-66. They are not interchangeable.

What if I miss September 15?

Utah accepts late appeals on narrow grounds under R884-24P-66: a medical emergency, the death of the owner or an immediate family member, the county's failure to comply with the §59-2-919 notice requirements, a factual error, or extraordinary and unanticipated circumstances. In each case, no co-owner must have been able to file.

Weber and Utah County publish a hard outer cutoff of March 31 of the following year. Weber additionally requires County Commission approval, and if it is refused the filing auto-converts to a pre-appeal for the next cycle.

A late appeal accepted on the factual-error ground is limited to correcting that error and any resulting value change. You do not get a full revaluation.

What does it cost to appeal in Utah?

Nothing, at the county level.

No filing fee appears in the Utah Code, in Tax Commission Publication 31, or on the appeal pages of Salt Lake, Utah, Davis, or Weber counties. No fee is identified on form TC-194 or the Commission's locally-assessed appeals page either, though that is verified by absence rather than an affirmative statement, so confirm with the Appeals Unit if it matters to you.

District court judicial review costs $375 under §78A-2-301(1)(a), plus your own costs.

Your real cost is evidentiary: a professional appraisal if you commission one, or MLS comparable printouts, which a cooperative real estate agent will usually pull for free.

After the county board decides

You have 30 days from the board's final action to appeal to the Utah State Tax Commission on form TC-194, and that notice of appeal is filed with the county auditor, not with the Commission. The auditor certifies the record.

The case runs through mediation, an initial hearing, then a formal hearing before an administrative law judge. The Commission must decide real property appeals by March 1 of the following year. Judicial review then lies in district court or the appellate courts.

Submit your supporting information to the county and the Appeals Unit 10 business days before the hearing or it may be refused.

Where to go from here

Recover the market value from your notice by dividing taxable by 0.55. If that number is higher than your home would have sold for on January 1, 2026, you have a case, and you have until September 15 to file it.

• Utah property tax appeals for the state overview
• Every state's 2026 appeal deadline, sourced and dated
• The Utah DIY Appeal Kit, $29, with the county-by-county filing rules, the evidence standards, and a ready-to-edit appeal

We do not hold per-parcel records for Utah, so we cannot pull your comps for you, and we would rather say that plainly than send you to a lookup that returns nothing. That is why the kit is $29 rather than $49: you gather your own comps, and it shows you exactly what each county requires.

Appeal Your Utah Assessment Yourself

We do not hold per-parcel records for Utah, so there is no free lookup here, and we say so rather than sending you to a search that cannot find you. What we do have is the Utah DIY Appeal Kit: the deadline rules, the official form, the evidence the boards actually accept, and a ready-to-edit appeal letter, for $29 flat. You pull your own comps and keep 100% of your savings.