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Updated 2025 Tax Year

Teton County
Property Tax Guide

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

10 Official Sources
8 min read
Quick Facts
Tax Rate
0.57554% effective rate (varies by special taxing districts including fire, school, water/sewer)
Exemptions
4+ Available
Section 1

How Property Tax Works

Teton County, Wyoming operates under an ad valorem property tax system, meaning taxes are assessed according to the value of your property. Property taxes fund essential county services including schools, roads, public safety, and local government operations. The county assesses properties at 9.5% of their total market value, then applies the mill levy rate set by the Board of County Commissioners to determine your annual tax obligation.

For the 2025 tax year, Teton County's effective property tax rate is 0.57554%, though your actual rate may vary depending on which special taxing districts your property falls within. These districts can include school bonds, fire districts, water and sewer districts, and other special assessments that serve specific areas of the county. Property owners should note that Teton County offers significant tax relief programs, including homeowner exemptions that can substantially reduce your tax burden, but these require annual application and are not automatically applied.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
Base County Levy0.57554%FY 2025 base property tax rate
School DistrictVariesAdditional levy for local school funding
Fire DistrictVariesFire protection services (location-dependent)
Water/Sewer DistrictVariesMunicipal utility services (if applicable)
Special AssessmentsVariesInfrastructure bonds, improvement districts

Note: The rates shown are for levy year 2025 and represent the base county rate. Your actual tax rate will depend on the specific special taxing districts where your property is located. Contact the Teton County Assessor's Office for your property's complete tax rate breakdown, as rates can vary significantly within different areas of the county.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Teton 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 changes to your property's assessed value during the tax year. Common triggers include change of ownership, completion of new construction, additions or major improvements, and removal of tax exemptions. When a supplemental assessment occurs, you'll receive a separate tax bill calculated on the difference between the old and new assessed values.

The supplemental tax is prorated based on the number of months remaining in the tax year from the date the change became effective. For example, if you complete a home addition worth $100,000 in assessed value in January, and your tax rate is 0.57554%, you would owe approximately $576 in supplemental taxes for that year. These taxes are due within 30 days of the bill date and are separate from your regular property tax payments.

Example Calculation

$300,000 Home (Standard Homeowner Exemption Applied)

  • Market Value: $300,000
  • Assessed Value (9.5%): $28,500
  • Homeowner Exemption (25% on first $1M): -$7,125
  • Net Taxable Value: $21,375
  • Annual Tax (0.57554%): $123
  • Monthly Escrow: $10

$600,000 Home (Standard Homeowner Exemption Applied)

  • Market Value: $600,000
  • Assessed Value (9.5%): $57,000
  • Homeowner Exemption (25% on first $1M): -$14,250
  • Net Taxable Value: $42,750
  • Annual Tax (0.57554%): $246
  • Monthly Escrow: $21

$1,000,000 Home (Long-Term Homeowner Exemption Applied)

  • Market Value: $1,000,000
  • Assessed Value (9.5%): $95,000
  • Long-Term Homeowner Exemption (50%): -$47,500
  • Net Taxable Value: $47,500
  • Annual Tax (0.57554%): $273
  • Monthly Escrow: $23

Note: All exemptions require annual application and qualification. Rates may vary based on special district locations.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Teton County require borrowers to maintain an escrow account for property tax payments. Your lender collects monthly escrow payments along with your mortgage payment, then pays your property taxes directly to the county when due. Lenders typically collect 1/12 of your estimated annual tax bill each month, plus a small cushion to account for potential tax increases.

Teton County property taxes are paid in two installments: the first installment for the current year is due in August, and the second installment is due the following July. Your lender will receive tax bills and pay them on your behalf. You should receive an annual escrow analysis from your lender showing how your payments were applied and any adjustments needed for the following year. If you pay your own taxes (no escrow), remember that taxes become delinquent after May 10th for the second installment, with penalties and interest applied to late payments.

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 property taxes due in Teton County for 2025? A: The first installment of current year property taxes is due in August 2025, and the second installment is due in July 2026. The second installment becomes delinquent after the second Monday in May.

Q: What homeowner tax credits are available and do they require application? A: Teton County offers two main programs: 1) Standard Homeowner Exemption provides 25% off assessed value on the first $1 million of market value, and 2) Long-Term Homeowner Exemption provides 50% off assessed value for qualifying seniors. Both require annual application by March 1st and are NOT automatic.

Q: Who qualifies for the Long-Term Homeowner Exemption? A: Property owners or their spouse must be 65 or older, have paid residential property taxes in Wyoming for 25+ years, and reside in the primary residence for at least 8 months per year. This exemption applies to the primary residential structure and up to 35 acres of land.

Q: How often are properties reassessed in Teton County? A: Wyoming law requires properties to be reassessed periodically, but the specific schedule varies. Contact the Teton County Assessor's Office for current reassessment schedules and appeal procedures if you disagree with your assessed value.

Q: What happens if I pay my property taxes late? A: Property taxes become delinquent after the due dates, with penalties and interest applied. Continued non-payment can eventually lead to tax lien sales. Contact the County Treasurer immediately if you're having difficulty paying.

Q: Can I pay my property taxes online? A: Yes, Teton County offers online property tax payment options through their official website. You can also pay by mail, phone, or in person at the County Treasurer's office.

Q: How do special district taxes affect my bill? A: Your property may be located in special taxing districts for services like fire protection, water/sewer, or school bonds. These appear as separate line items on your tax bill and vary by location within the county.

Q: Is there property tax relief for low-income residents? A: Yes, Teton County offers a property tax refund program for qualifying low-income residents. The application deadline is the first Monday in June, and the program provides refunds for taxes paid on principal residences in the preceding year.

Q: What triggers a supplemental tax assessment? A: Change of ownership, completion of new construction, major improvements, or removal of exemptions can trigger supplemental assessments. You'll receive a separate bill for the prorated amount based on when the change occurred during the tax year.

Q: Where can I get help with property tax questions? A: Contact the Teton County Assessor's Office for assessment and exemption questions, or the County Treasurer's Office for payment and collection issues. Both offices can provide specific information about your property's tax situation.

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