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Updated 2025 Tax Year

Platte County
Property Tax Guide

Everything you need to know about property taxes in Platte 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
Varies by district, typically 1.2-1.8% effective rate depending on special districts
Exemptions
4+ Available
Section 1

How Property Tax Works

Platte County, Wyoming operates under the state's property tax system, where property taxes serve as a primary funding source for local government services, schools, and special districts. The county follows Wyoming's assessment practices with properties typically assessed at a percentage of fair market value, and tax rates applied to generate revenue for essential services including education, law enforcement, road maintenance, and fire protection.

Property tax rates in Platte County vary by location within the county due to different combinations of special taxing districts, including school districts, fire districts, and other local improvement districts. While Wyoming maintains a relatively moderate property tax burden compared to many states, actual tax bills depend on both the assessed value of your property and the specific taxing districts that serve your area. The county operates on a biennial assessment cycle, meaning property assessments are updated every two years rather than annually.

Section 2

What Makes Up Your Tax Bill

Based on available data, specific tax rates for Platte County for the current levy year are not publicly detailed in the research provided. However, the typical structure includes:

ComponentRateDescription
County GeneralVariesBasic county services, administration
School DistrictVariesLocal school funding, varies by district
Fire DistrictVariesFire protection services (if applicable)
Special AssessmentsVariesLocal improvement districts, bonds

Note: Exact rates for FY 2024-2025 levy year should be confirmed with the Platte County Assessor's Office, as rates vary significantly by specific location and applicable special taxing districts within the county.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Platte 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 in Platte County are triggered by changes in property ownership, new construction, or improvements that increase a property's assessed value during the tax year. When these events occur, the county assessor calculates the difference between the new assessment and the previous assessment, then applies the current tax rate to determine the supplemental tax amount.

For example, if you complete a home addition worth $50,000 in assessed value mid-year, and your area's total tax rate is 1.2%, you would owe a supplemental tax of approximately $600 prorated for the remaining months in the tax year. Supplemental tax bills are issued separately from regular property tax bills and have their own due dates, typically 30 days from the date of issuance.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Less: Homestead Credit (if applicable): Variable
  • Net Taxable Value: ~$300,000
  • Estimated Tax Rate: ~1.0-1.2%
  • Annual Tax: ~$3,000-$3,600
  • Monthly (if escrowed): ~$250-$300

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Less: Homestead Credit (if applicable): Variable
  • Net Taxable Value: ~$600,000
  • Estimated Tax Rate: ~1.0-1.2%
  • Annual Tax: ~$6,000-$7,200
  • Monthly (if escrowed): ~$500-$600

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Less: Homestead Credit (if applicable): Variable
  • Net Taxable Value: ~$1,000,000
  • Estimated Tax Rate: ~1.0-1.2%
  • Annual Tax: ~$10,000-$12,000
  • Monthly (if escrowed): ~$833-$1,000

Note: Tax credits require application and are not automatically applied. Contact the Platte County Assessor for specific rates and available credits.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Platte County require property tax escrow accounts, where you pay 1/12 of your annual property tax bill with each monthly mortgage payment. The lender holds these funds in escrow and pays your property taxes directly to the county when due. Given Platte County's biennial payment schedule (first installment due April 1, second installment due October 1), lenders typically maintain escrow balances to cover these semi-annual payments.

Your lender will conduct an annual escrow analysis to ensure adequate funds are collected, adjusting your monthly payment if necessary based on any changes in your tax bill. You can request escrow account statements from your lender and should verify that payments are made timely to avoid penalties. If you pay off your mortgage or refinance, ensure there's no gap in tax payment responsibility during the transition.

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 Platte County? A: Property taxes are due on a biennial schedule with the first installment due by April 1 and the second installment due by October 1 for the current tax year.

Q: What tax credits are available and how do I apply? A: Wyoming offers various tax credits that require application, including potential homeowner credits. Contact the Platte County Assessor's office for current available credits and application deadlines, as these are not automatically applied.

Q: How does the homestead credit work? A: Homestead-type credits in Wyoming typically limit assessment increases rather than reducing market value. These require filing an application and may cap annual assessment growth. Check with the county assessor for current homestead programs and application requirements.

Q: How often are properties reassessed? A: Platte County follows Wyoming's biennial assessment schedule, meaning properties are reassessed every two years rather than annually.

Q: What are the penalties for late payment? A: Late payments typically incur interest and penalties. Contact the Platte County Treasurer's office for specific penalty rates and procedures for the current tax year.

Q: Can I pay property taxes online? A: Check the Platte County Treasurer's website for current online payment options and accepted payment methods.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the County Board of Equalization within specific timeframes after assessment notices are mailed. Contact the Platte County Assessor for appeal procedures and deadlines.

Q: Why do tax rates vary within the county? A: Tax rates vary based on the combination of special taxing districts serving your property, including different school districts, fire districts, and local improvement districts that may apply to your specific location.

Verified Sources

Backed by 10 Official Government Sources

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

01
Tax Doc
Wyoming Sales, Use, and Lodging Tax Revenue Report: ...eadiv.state.wy.us
02
Memorandumwyoleg.gov
03
County
News | Wyoming County Treasurer's Associationwcta.us
04
Tax Doc
Wyoming Property Tax Relief Statuswyoleg.gov
05
Wyoming Personal Property Valuationwyoleg.gov
06
Tax Doc
Property Tax Limitswyoleg.gov
07
Wyomingirs.gov
08
Tax Doc
Wyoming Residential Affidavit Claim - Property Taxptd.wyo.gov
09
Platteeadiv.state.wy.us
10
June 30, 2023 - Cash Balance Reporttorringtonwy.gov
All sources verified as of 2025 Tax Year

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