Original Research · Salt Lake County Value-History Records · Decided Appeals 2021–2024
Who Actually Wins a Salt Lake County Property Tax Appeal
Salt Lake County quietly publishes the outcome of every appeal in its parcel value histories. We parsed them. Office owners win a reduction roughly one time in four. Industrial owners win one in ten. The spread isn't luck — it's evidence.
By Charlie Young, Principal — former Managing Director at one of the nation's largest property tax firms · LinkedIn · July 2026
Most counties tell you nothing about how appeals turn out. Salt Lake County is the exception: its assessor's parcel records carry a value history that shows the original assessment, the Board of Equalization result, and any State Tax Commission or court outcome — for every appeal, every year. If you know how to read the line codes, the county has already published its own report card.
We read it — across the county's largest commercial properties, for every appeal decided in the 2021 through 2024 tax years.
Methodology: SVA analysis of Salt Lake County assessor value-history records for the county's largest office, multifamily, and industrial properties. "Decided" means the record shows a Board of Equalization or State Tax Commission/court result; a "win" means the final value came in below the original assessment. Tax years 2021–2024 only — 2025 outcomes are excluded because Tax Commission cases lag one to two years, which structurally understates any current-year rate.
Why office wins 2.5× as often as industrial
It isn't that office owners hire better help. It's that between 2021 and 2024, the office market handed its owners a case: rising vacancy, falling rents, cap rates moving against values — the classic evidence package a board can't ignore. Industrial owners spent those same years appealing into a rising market. Many filings were understandable — the increases were painful — but pain isn't evidence, and the win rates show the difference.
Appeals aren't won by how much your taxes went up. They're won by how far the roll sits from what the evidence supports.
That's also the honest way to read the multifamily number. Apartment values softened later in the period, filings roughly tripled — and the win rate landed between office and industrial, right where the strength of the market evidence would predict.
The number nobody should quote: this year's win rate
One structural quirk worth knowing: Board of Equalization decisions post in the same year, but State Tax Commission and court outcomes lag one to two years. Any "2025 win rate" computed today counts the fast losses and misses the slow wins — it's guaranteed to understate. When you see a current-year success statistic quoted with confidence, someone is either early or careless. We anchor on complete years only.
It cuts the other way too: a county-board denial is not the end of the case. A meaningful share of reductions in these records arrived at the second level, a year or more after the original filing. Persistence — with evidence — is part of the strategy, not a consolation prize.
What this means before September 15
Utah's county-board petitions are due September 15, or 45 days after your valuation notice, whichever is later — and notices are in mailboxes now. Three ways to use the outcome data:
- File where the evidence is, not where the increase is. This cycle's strongest evidence case in Salt Lake County is hospitality — double-digit assessment increases against flattening revenue — with office still carrying values the market has moved away from.
- Prepare like the 25%, not the 75%. The decided-case record is a reminder that most filings fail. Income statements, occupancy, and comparable evidence assembled before filing are what separate the quartile that wins.
- Budget for two rounds. If the county board sustains, the Tax Commission is where well-built cases get a second, slower hearing — the records show it pays.
And if a consultant quotes you a gaudy success rate, read our companion piece on what a win rate actually measures. Property-type win rates measure the evidence. Consultant win rates measure the intake filter. Neither one measures skill by itself.