Rate Breakdown

Property taxes in Carbon County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Carbon County

Property taxes in Carbon County are based on the assessed value of your property and the mill levy (tax rate) set by local taxing authorities. Here’s how the process works:

• Assessment: The Carbon County Assessor’s Office determines the market value of your property annually. Wyoming requires residential properties to be assessed at 9.5% of market value, while commercial properties are assessed at 15%.
• Mill Levy: Tax rates (mill levies) are applied per $1,000 of assessed value. These rates are set by school districts, municipalities, and other local entities. For example, a mill levy of 70 mills would equate to $70 in tax per $1,000 of assessed value.
• Calculation: Multiply your property’s assessed value by the total mill levy to estimate your annual tax bill.

Available Exemptions

Wyoming offers several property tax exemptions to qualifying residents. Below are the key programs available in Carbon County:

• Homestead Exemption: Provides a reduction in taxable value for primary residences. Applicants must occupy the home as their primary residence as of January 1 of the tax year.
• Senior Citizen Exemption: Available to homeowners aged 65+ with limited income. This exemption can reduce the taxable value of a primary residence by up to 50%.
• Veteran Exemption: Veterans with a service-connected disability may qualify for a partial or full exemption, depending on disability rating.
• Disability Exemption: Individuals with permanent disabilities may be eligible for tax relief, subject to income limits.

Applications for exemptions must be filed with the Carbon County Assessor’s Office by the deadline, typically April 1.

Payment Schedule & Deadlines

Property taxes in Carbon County are due annually and follow a strict schedule:

• Billing: Tax statements are mailed by November 1 each year.
• Payment Deadline: Taxes are due in full by December 31. Late payments incur penalties and interest.
• Installment Option: Homeowners may pay in two installments: 50% by December 31 and the remaining 50% by May 10 of the following year.
• Late Penalties: Payments postmarked after the deadline face a 2% penalty in January, increasing by 1% each month (capped at 18%). Delinquent taxes may result in a tax lien or foreclosure.

Appealing Your Assessment

If you believe your property’s assessed value is incorrect, you can appeal the assessment. Here’s how:

• Step 1: Contact the Carbon County Assessor’s Office to discuss your valuation. Many disputes are resolved informally.
• Step 2: File a formal appeal with the County Board of Equalization by the deadline (typically 30 days after assessment notices are mailed, often in April).
• Step 3: Present evidence, such as recent comparable sales or an independent appraisal, to support your claim.
• Step 4: If unsatisfied with the board’s decision, you may appeal to the State Board of Equalization within 30 days.

Act promptly, as missing deadlines forfeits your right to appeal for the year.