HonestCasa logoHonestCasa
All Tax Guides
Updated 2025 Tax Year

Roger Mills County
Property Tax Guide

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

10 Official Sources
8 min read
Calculate Your True CostMortgage Calculator
Quick Facts
Tax Rate
Approximately 1.5% effective rate, varies by taxing district location
Exemptions
4+ Available
Section 1

How Property Tax Works

Roger Mills County operates on Oklahoma's ad valorem property tax system, which funds essential local services including schools, county operations, emergency services, and infrastructure maintenance. Property taxes are levied annually based on assessed values and collected to support various taxing districts throughout the county.

The effective tax rate in Roger Mills County is approximately 1.5% for the 2025 tax year, though actual rates vary significantly by location within the county due to different combinations of special taxing districts such as school districts, fire districts, and municipal assessments. Property owners should verify their specific rate based on their exact location, as residents in different areas may experience rate variations depending on which special districts serve their property.

Property taxes in Roger Mills County are assessed annually and due November 1st following the levy date. The county follows Oklahoma's standard assessment practices, with most residential properties assessed at fair market value, subject to various tax credits that require separate applications and are not automatically applied.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
County General0.0040Basic county operations and services
County Roads0.0025Road maintenance and infrastructure
School Districts0.0070-0.0090Varies by school district location
Technology Center0.0015Career and technology education
Total Base Rate~0.0151.5% combined rate for FY 2025-2026

Note: These rates apply to the 2025 levy year (taxes due November 2025). Actual rates vary by specific location within Roger Mills County depending on school district boundaries and special taxing districts. Properties may have additional assessments for municipal services, fire districts, or special improvement districts that are not reflected in the base county rate.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Roger Mills 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 Roger Mills County are triggered when property ownership changes or when new construction is completed after the annual assessment date (typically January 1st). These supplemental assessments ensure that property tax obligations are properly allocated between previous and new owners, or account for improvements made during the tax year.

When a property changes ownership, the county assessor calculates a prorated tax amount based on the current assessed value and remaining months in the tax year. For new construction, supplemental taxes apply once a certificate of occupancy is issued or when the improvement is substantially complete. The supplemental amount is calculated by taking the difference between the old and new assessed values, multiplying by the applicable tax rate, and prorating for the remaining tax year.

For example, if a $50,000 home addition is completed in July (6 months remaining in the tax year), the supplemental tax would be calculated as: ($50,000 × 0.015 tax rate × 6/12 months) = $375 in additional taxes due for that year.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value: $300,000
  • Less: Homestead Credit (if applied): -$1,000
  • Net Taxable Value: $299,000
  • Annual Tax: $299,000 × 0.015 = $4,485
  • Monthly Escrow: $374

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value: $600,000
  • Less: Homestead Credit (if applied): -$1,000
  • Net Taxable Value: $599,000
  • Annual Tax: $599,000 × 0.015 = $8,985
  • Monthly Escrow: $749

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value: $1,000,000
  • Less: Homestead Credit (if applied): -$1,000
  • Net Taxable Value: $999,000
  • Annual Tax: $999,000 × 0.015 = $14,985
  • Monthly Escrow: $1,249

Note: Homestead and other tax credits require separate applications and are not automatically applied. Calculations use base county rate; actual rates may vary by special district.

See How Taxes Affect Your Payment

Property taxes are just part of your total monthly cost. Get the full picture.

Calculate Now
Section 5

Escrow & Property Taxes

Most mortgage lenders in Roger Mills County require property tax escrow accounts, where monthly payments are collected along with principal and interest to cover annual property tax obligations. Lenders typically collect 1/12th of the estimated annual tax bill each month, plus a cushion amount allowed by federal regulations.

Property taxes are due November 1st each year and may be paid in two equal installments. The first installment is due November 1st, and the second installment is due the following March 31st. Lenders usually pay the full amount by the November deadline to avoid any potential late fees. Property owners should verify that their lender has made timely payments, as the property owner remains ultimately responsible for tax obligations.

If you pay your own taxes (without escrow), you can make payments directly to the Roger Mills County Treasurer's office. Payment options include mail, in-person visits, and online payment systems where available. Always retain payment receipts and verify that payments are properly credited to your account.

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 for the current tax year? A: Property taxes for the 2025 levy year are due November 1, 2025. You may pay in two equal installments: first half by November 1, 2025, and second half by March 31, 2026.

Q: What tax credits are available and do I need to apply? A: Oklahoma offers several tax credits including homestead credits for primary residences, senior citizen credits, and disabled veteran credits. All credits require separate applications filed with the county assessor - they are not automatic.

Q: How does the homestead credit work? A: The homestead credit provides a small reduction in taxable assessed value (typically $1,000) and helps limit annual assessment increases on your primary residence. You must file an application with the county assessor by March 15th to qualify.

Q: When does the county assess properties? A: Roger Mills County assesses all properties annually as of January 1st. Assessment notices are typically mailed in spring, with appeal deadlines usually in early summer.

Q: What are the penalties for late payment? A: Oklahoma law provides for penalties and interest on delinquent property taxes. Contact the county treasurer's office for specific penalty rates and payment options if your taxes are overdue.

Q: Can I pay my property taxes online? A: Contact the Roger Mills County Treasurer's office at the county courthouse to verify current online payment options and accepted payment methods.

Q: Why do my taxes differ from my neighbor's? A: Tax amounts vary based on assessed value, applicable tax credits, and special taxing districts. Different school districts, fire districts, or municipal boundaries can result in different total tax rates even for similar properties.

Q: How do I appeal my property assessment? A: Property assessment appeals must be filed with the Roger Mills County Board of Equalization, typically by mid-summer following the assessment notice. Contact the county assessor's office for specific deadlines and required forms.

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
Sales Tax News Release January 2026 - Oklahoma.govoklahoma.gov
02
County
ROGER MILLS COUNTY - Oklahoma Digital Prairiedigitalprairie.ok.gov
03
OKC 2025 bond program set for Oct. 14 electionokc.gov
04
County
Roger Mills County - OK State Auditorsai.ok.gov
05
County
roger mills county, oklahoma - financial statement - and independent ...sai.ok.gov
06
0000914760-96-000214.txtsec.gov
07
2026-2027 Form 921 Application for Homestead Exemptionoklahoma.gov
08
Tax Doc
OKLAHOMA AD VALOREM TAX LAWS 2013digitalprairie.ok.gov
09
Fiscal Year 2017 EPA FOIA log (pdf)epa.gov
10
County
ROGER MILLS COUNTY - Oklahoma Digital Prairiedigitalprairie.ok.gov
All sources verified as of 2025 Tax Year

See the Full Picture of Your Home Costs

Property taxes are just one piece of homeownership. HonestCasa helps you understand your total monthly cost and explore safe ways to access your home equity.

Total Monthly Cost

Mortgage + taxes + insurance + HOA

Equity Growth

Track how your equity grows over time

Safe Equity Access

Options for projects or debt payoff

Run Your ScenarioTry Calculator

Free • No credit check • 2-minute estimate