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Updated 2025 Tax Year

Campbell County
Property Tax Guide

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

10 Official Sources
8 min read
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Quick Facts
Tax Rate
0.158% effective rate (varies by special districts and location within county)
Exemptions
4+ Available
Section 1

How Property Tax Works

Campbell County property taxes fund essential local services including schools, county government operations, fire protection, and various special districts. The county assesses property taxes based on a mill levy system, where rates are expressed per $1,000 of assessed value. Wyoming uses a market value assessment approach, with residential properties typically assessed at 9.5% of market value.

The effective property tax rate in Campbell County for 2025 is approximately 0.158% (1.58 mills per dollar of assessed value), though actual rates vary significantly by location within the county due to special taxing districts. Property owners may be subject to additional levies for school districts, fire districts, water districts, and other special purpose entities depending on their property's location. It's important to note that most property tax exemptions and credits require formal application and are not automatically applied to your tax bill.

Section 2

What Makes Up Your Tax Bill

ComponentRate (per $1,000 assessed value)Description
Base County LevyVariesGeneral county operations and services
School District LevyVaries by districtLocal school funding and operations
Fire District LevyVaries by districtFire protection and emergency services
Special DistrictsVaries by locationWater, sewer, improvement districts
Total Composite Rate~$1.58Combined rate for FY 2025-2026

Note: Actual tax rates vary significantly by property location within Campbell County due to different combinations of special taxing districts. Contact the Campbell County Assessor's Office for your specific district combination and exact mill levy rates.

Section 3

When Are Property Taxes Due?

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

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 taxes are additional property tax bills issued when there are mid-year changes to property ownership, value, or use. In Campbell County, supplemental taxes are most commonly triggered by new construction, property transfers, or completion of building permits that increase a property's assessed value during the tax year.

When supplemental taxes are issued, they represent the difference between the original tax assessment and the new assessment, prorated for the remaining months in the tax year. For example, if a $100,000 home improvement is completed in July, the additional tax would be calculated on the increased assessed value for the remaining five months of the tax year (August through December), rather than the full year.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (9.5%): $28,500
  • Less: Homestead Credit (if applicable): Variable
  • Net Taxable Value: ~$28,500
  • Annual Tax (0.158%): $450
  • Monthly Escrow: $37.50

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (9.5%): $57,000
  • Less: Available Credits: Variable
  • Net Taxable Value: ~$57,000
  • Annual Tax (0.158%): $901
  • Monthly Escrow: $75.08

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (9.5%): $95,000
  • Less: Available Credits: Variable
  • Net Taxable Value: ~$95,000
  • Annual Tax (0.158%): $1,501
  • Monthly Escrow: $125.08

Note: All credits require application and eligibility verification. Actual taxes may vary based on specific location and applicable special district levies.

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Section 5

Escrow & Property Taxes

Most mortgage lenders require property tax escrow accounts for Campbell County properties. Your lender collects monthly payments equal to 1/12th of your estimated annual property tax bill, plus insurance premiums, and pays these bills on your behalf when due. Lenders typically conduct annual escrow analyses to ensure adequate funds are collected.

Property taxes in Campbell County are paid in two installments: the first half is due September 1st and becomes delinquent after November 10th, while the second half is due March 1st of the following year and becomes delinquent after May 10th. If you have an escrow account, your lender will make these payments automatically. Property owners without escrow accounts must make payments directly to the Campbell County Treasurer's Office by the specified due dates to avoid penalties and interest charges.

How HonestCasa Helps
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Section 6

Frequently Asked Questions

Q: When are Campbell County property taxes due for FY 2025-2026? A: First installment is due September 1, 2025 (delinquent after November 10), and second installment is due March 1, 2026 (delinquent after May 10, 2026).

Q: What property tax credits are available and how do I apply? A: Credits include the Long-Term Homeowner Credit (50% off assessed value for qualifying primary residences), veteran exemptions, and HB0045 residential exemptions. All require formal application through the Campbell County Assessor's Office.

Q: How does the homestead credit work in Campbell County? A: Wyoming's homestead-type credits typically cap assessment increases rather than reducing market value. Eligible homeowners must file annually, and the credit limits how much your assessed value can increase year-over-year.

Q: When is my property reassessed? A: All property is assessed annually as of January 1st. The Campbell County Assessor reviews market values and applies current assessment ratios to determine taxable assessed values.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Campbell County Board of Equalization. Contact the Assessor's Office for specific deadlines and required documentation.

Q: What are the penalties for late payment? A: Late payments incur penalties and interest charges. First installment penalties begin after November 10th, and second installment penalties begin after May 10th of the following year.

Q: Can I pay property taxes online? A: Contact the Campbell County Treasurer's Office for current online payment options and accepted payment methods.

Q: How do special district taxes affect my bill? A: Special districts for fire protection, water, sewer, and improvement projects add additional mills to your tax rate. Your exact rate depends on which districts serve your property location.

Q: What is the deadline for property tax exemption applications? A: Most exemption applications are due by June 2nd annually, though some have different deadlines. Veterans' exemptions are due by the fourth Monday in May.

Q: How is new construction taxed? A: New construction is assessed and added to the tax rolls when completed. Supplemental tax bills may be issued for the partial year, and the full value will be reflected in the following year's regular assessment.

Verified Sources

Backed by 10 Official Government Sources

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

01
New Legislation & Exemptionscampbellcountywy.gov
02
Tax Doc
PROPERTY TAX RETURNSpsc.ky.gov
03
County
Assessor's Office | Campbell County, WY - Official Websitecampbellcountywy.gov
04
County
Important Dates | Campbell County, WY - Official Websitecampbellcountywy.gov
05
Frequently Asked Questions - CivicPlus.CMS.FAQcampbellcountywy.gov
06
Tax Doc
Property Tax Refund Program Deadline Approachinggovernor.wyo.gov
07
Tax Doc
Property Tax Exemptionscampbellcountywy.gov
08
County
Campbell Countyeadiv.state.wy.us
09
Adoptedgillettewy.gov
10
2025 - SF0081wyoleg.gov
All sources verified as of 2025 Tax Year

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