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Updated 2025 Tax Year

Carbon County
Property Tax Guide

Everything you need to know about property taxes in Carbon County, UT. Rates, due dates, exemptions, and how it affects your monthly payment.

9 Official Sources
8 min read
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Quick Facts
Tax Rate
0.8% to 1.3% of assessed value (varies by taxing districts serving your location)
1st Due
Nov 30
2nd Due
May 31
Exemptions
4+ Available
Section 1

How Property Tax Works

Carbon County, Utah operates under the state's property tax system to fund essential local services including schools, fire protection, law enforcement, road maintenance, and county operations. Property taxes are calculated based on the assessed value of your property multiplied by the combined tax rate from various taxing entities that serve your specific location within the county.

The effective property tax rate in Carbon County varies significantly by location due to different combinations of special taxing districts, school districts, and municipal boundaries. While Utah's statewide average is approximately 1%, actual rates in Carbon County typically range from 0.8% to 1.3% of assessed value depending on which taxing districts serve your property. The 2025 tax rates have not yet been finalized as they are set annually by local governing bodies before each fiscal year begins, following procedures outlined in the Utah Constitution.

Your property is assessed at market value by the Carbon County Assessor's Office, with no assessment cap limiting annual increases. However, various tax credits may be available to qualifying property owners to reduce their final tax bill, though these require separate applications and are not automatically applied.

Section 2

What Makes Up Your Tax Bill

The 2025 Carbon County property tax rates are not yet available as they will be determined by local taxing entities before the fiscal year begins. Tax rates vary by location within Carbon County based on which special taxing districts serve your property. A typical breakdown includes:

ComponentEstimated Rate RangeDescription
County General0.002000 - 0.003000County operations and services
School District0.006000 - 0.008000Local school funding
State Education0.001500 - 0.002000State-mandated school funding
Municipal0.001000 - 0.002500City services (if within city limits)
Fire District0.000500 - 0.001500Fire protection services
Special Districts0.000000 - 0.002000Water, sewer, library, parks
Total Estimated0.008000 - 0.013000Combined rate varies by location

Contact the Carbon County Assessor's Office for current rates applicable to your specific property address, as rates differ significantly between Price, Helper, other municipalities, and unincorporated areas.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Carbon County, property taxes are due in two installments:

First Installment
Nov 30
Delinquent after Dec 10
Second Installment
May 31
Delinquent after Apr 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental property taxes in Carbon County are additional tax bills issued when there are mid-year changes to property ownership, value, or use. The most common triggers include the sale of property to a new owner, completion of new construction or major improvements, and changes in property use or exemption status.

When a supplemental assessment is issued, it calculates the difference between the old and new assessed values, applies the current tax rate, and prorates the additional tax owed from the date of change through the end of the current tax year. For example, if you purchase a home in Carbon County in July and the new assessment is higher than the previous owner's assessment, you would receive a supplemental tax bill covering July through December.

Supplemental tax bills are typically mailed within 30-90 days of the triggering event and have their own due dates separate from regular property tax bills. These taxes cannot be escrowed with your mortgage payment initially, so property owners must pay them directly to avoid penalties and interest charges.

Example Calculation

The following examples show estimated annual property taxes for Carbon County properties, assuming a combined tax rate of 1.10% and applying common tax credits where applicable:

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Veteran's Exemption (if applicable): -$150 tax credit
  • Net Annual Tax: $3,300 - $150 = $3,150
  • Monthly Payment: $262.50

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Homestead Credit (if applicable): -$55 tax credit
  • Circuit Breaker Credit (if income qualified): -$300 tax credit
  • Net Annual Tax: $6,600 - $355 = $6,245
  • Monthly Payment: $520.42

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Net Annual Tax: $11,000 (no credits assumed)
  • Monthly Payment: $916.67

Note: All tax credits shown require separate applications and qualification. Actual tax rates vary by specific location within Carbon County based on local taxing districts serving your property.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Carbon County require property tax escrow accounts for borrowers with less than 20% down payment, though some lenders may require escrow regardless of down payment amount. Your lender collects monthly deposits equal to 1/12 of your estimated annual property tax bill, plus homeowner's insurance, and pays these bills directly when due.

Property taxes in Carbon County are typically due in two installments during the fiscal year, with specific dates varying by taxing district. Your lender should receive tax bills directly from the county, but you should verify that payments are made on time to avoid penalties. Utah law requires lenders to pay property taxes within 30 days of the due date when adequate funds are available in escrow.

If you pay property taxes directly (without escrow), you'll receive tax bills from Carbon County showing due dates and payment options. You can verify escrow payments and current tax information through the Carbon County Assessor's website or by contacting their office directly. Always confirm your lender has current contact information and property details to ensure proper tax bill delivery and payment.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are Carbon County property taxes due for the current fiscal year? A: Due dates vary by taxing district within Carbon County. Contact the Carbon County Treasurer's office at (435) 636-3245 for specific due dates applicable to your property address, as dates may differ between municipalities and special districts.

Q: What tax credits are available to reduce my property tax bill? A: Utah offers several tax credits including the Homestead Credit, Veteran's Exemption, Circuit Breaker Credit for low-income residents, and Blind Exemption. All credits require separate applications and qualification - none are automatic. Contact the Carbon County Assessor at (435) 636-3234 for applications and deadlines.

Q: How does the Homestead Credit work? A: The Homestead Credit limits annual assessment increases rather than reducing market value. It provides up to $5,000 in assessed value reduction for qualifying owner-occupied homes. You must apply annually by September 1st, and the credit is not automatic even if you qualified in previous years.

Q: When does Carbon County assess properties? A: Carbon County assesses all properties annually with a lien date of January 1st. The Assessor's Office reviews sales data, conducts inspections, and mails assessment notices typically by August. You have 45 days from the notice date to appeal your assessment.

Q: What penalties apply for late property tax payments? A: Utah law imposes penalties and interest on delinquent property taxes. Penalties typically start at 10% of the unpaid amount, with additional interest accruing monthly. Contact the Carbon County Treasurer for specific penalty rates and payment options.

Q: Can I pay my Carbon County property taxes online? A: Yes, Carbon County typically offers online payment options through their official website. You can also pay by mail, phone, or in person at the County Treasurer's office. Check the official Carbon County website for current payment methods and any associated fees.

Q: How do special taxing districts affect my tax rate? A: Your property may be served by multiple special districts for fire protection, water, sewer, libraries, or parks. Each district sets its own tax rate, and your total rate is the sum of all applicable districts. Rates vary significantly by location within Carbon County.

Q: What should I do if I disagree with my property assessment? A: File a written appeal with the Carbon County Board of Equalization within 45 days of receiving your assessment notice. Include comparable sales data and evidence supporting your position. The appeals process is formal and may require a hearing before the board.

Verified Sources

Backed by 9 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
County
2025 Carbon Countypropertytax.utah.gov
02
County
Personal Property Taxes - Carbon County - Utah.govcarbon.utah.gov
03
County
Assessor - Carbon County - Utah.govcarbon.utah.gov
04
Utah Code Section 78B-5-503le.utah.gov
05
State
Pub 36 | Utah State Tax Commissiontax.utah.gov
06
Tax Doc
Pub 36, Property Tax Abatement, Deferral and Exemption ...files.tax.utah.gov
07
County
Tax Relief (Abatement) - Carbon County - Utah.govcarbon.utah.gov
08
REFERENCES - BLM National NEPA Registereplanning.blm.gov
09
County
Carbon County (Utah) communities receive $600K to ...epa.gov
All sources verified as of 2025 Tax Year

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