Boulder Property Tax Quick Facts
- Location
- Boulder, Utah
- Garfield County
- Assessed By
- the Garfield County assessor
How to Appeal Property Taxes in Boulder
Check your assessment
Enter your Boulder address for a free 60-second check. We compare your assessed value against comparable sales and neighborhood data.
Get your evidence packet
If over-assessed, pay $45 for a complete appeal packet with comparable sales, equity analysis, and pre-filled forms for Garfield County.
File your appeal
Submit your appeal to Garfield County. Our filing guide walks you through every step.
About the Boulder Property Market
Boulder is a city located in Garfield County, Utah. Every property inside the Boulder city limits is assessed by the Garfield County assessor, which applies Utah property tax rules uniformly across the county.
Because Boulder property values are set at the county level, the same assessment rules apply to homes throughout the city. Homeowners who believe their Boulder home is over-assessed have the right to file a appeal directly with Garfield County.
Utah allows the assessor to defend or adjust the assessed value during a appeal, so Boulder homeowners should build a strong evidence-based case before filing — which is exactly what ProtestMax generates for $45.
Boulder Property Market Context
The property tax picture in Boulder is shaped as much by Utah statewide policy as by anything unique to a city.
Utah market character
Utah has a 45% residential exemption (primary residences are taxed on 55% of market value), and the state has been among the fastest-appreciating in the country. Salt Lake, Utah, and Washington counties have all produced aggressive reappraisal cycles.
How Utah handles appeals
Utah homeowners appeal to the county Board of Equalization, then the Utah State Tax Commission. The state is protest-friendly and evidence-driven.
When to file in Boulder
BOE appeals must be filed by September 15 (or 45 days after notice mailing, whichever is later). Notices mail in late July.
Common Boulder Property Types
Boulder homeowners typically file protests across these property categories:
Single-family homes
The most common residential type and the dominant protest category.
Condominiums
Common in denser parts of the city and near employment centers.
Townhouses
Attached-home neighborhoods in newer subdivisions.
Small multi-family
Duplexes and 2-4 unit buildings assessed as income property.
Commercial
Retail, office, and small commercial along major corridors.
ProtestMax supports all of the above property types in Boulder. Each appealpacket is tailored to the property's classification and uses comparable sales from Boulder and surrounding Garfield County neighborhoods.
Boulder Property Tax Appeal Questions
How do I appeal my property tax in Boulder, Utah?
What is the property tax rate in Boulder?
When is the appeal deadline for Boulder property taxes?
How much can I save on property taxes in Boulder?
Can my Boulder property tax increase from filing a appeal?
Nearby Cities in Garfield County
These Utah cities share the same appeal deadline and are assessed by the Garfield County assessor.