Property tax in Salt Lake City is shaped by one Utah-specific rule that catches many newcomers: a primary residence is taxed on only 55% of its market value thanks to the 45% residential exemption. This estimator applies that exemption and the local effective rate to give you a realistic annual and monthly figure.
How it works
The calculation runs in two steps:
taxable value = market value × (primary ? 0.55 : 1.00)
annual tax = taxable value × 0.0061
monthly = annual tax / 12
The 0.45 reduction is the residential exemption, available only on your primary home. Investment and second homes use the full market value, which is why their effective rate is roughly double that of an owner-occupied home in the same neighborhood.
Example and tips
A $500,000 primary home is taxed on $275,000 of value. At the 0.61% effective rate that is about $1,678 per year, or roughly $140 per month in escrow. The same house held as a rental would be taxed on the full $500,000 — about $3,050 a year. If you have just moved in, make sure the county has flagged the home as your primary residence; missing the exemption silently doubles your bill.
How Utah’s residential exemption works in practice
The 45% residential exemption is one of the most significant features of Utah’s property tax system and directly affects how Salt Lake City homeowners are taxed compared to investment property owners. The exemption is applied at the county assessor level and reduces the assessed value on which the tax rate is applied — so both the base rate and any supplemental levies apply to only 55% of market value for a qualifying primary home.
To qualify, the property must be your primary residence — the place where you are domiciled and registered to vote. You do not need to apply annually once established, but you must notify the county assessor if the property stops being your primary residence (for example, if you rent it out or move away). Missing this step means the county may continue applying the exemption to a property that no longer qualifies, which can result in back-taxes and penalties.
Salt Lake County tax rate areas
Salt Lake County uses tax rate areas (TRAs) to reflect the specific overlay of levies that apply to each parcel. The composite rate in a given TRA includes the state school levy, county general levy, city or town levy, and special district levies. The tool’s approximate 0.61% effective rate reflects a blended county average for a primary residence with the exemption applied — your specific parcel may be slightly higher or lower based on your TRA.
Factors that can push your rate above the average:
- Being within a municipal services district
- Special improvement districts for utilities or roads
- Voter-approved bond levies (which must be approved by voters and are therefore not permanent)
Salt Lake County’s official property tax information is published on the county assessor’s website, which includes a parcel lookup for exact rate areas.
Budgeting for escrow
If you are financing a home purchase, most lenders will impound property taxes monthly into an escrow account alongside your mortgage payment. The monthly escrow deposit is typically your estimated annual property tax divided by 12, sometimes with a two-month cushion reserve. Use this tool’s monthly figure as a starting point for budgeting your total monthly housing payment, then confirm the exact escrow amount with your lender at closing.