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Updated 2025 Tax Year

Cimarron County
Property Tax Guide

Everything you need to know about property taxes in Cimarron County, OK. 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
0.02% base rate, varies by district with additional assessments for schools and municipal services
1st Due
Nov 1
Exemptions
4+ Available
Section 1

How Property Tax Works

Cimarron County property taxes are the primary funding source for essential local services including schools, county government operations, emergency services, and infrastructure maintenance. The county operates on a fiscal year basis with taxes levied each October and due November 1st of the following year. Property owners in Cimarron County benefit from Oklahoma's relatively low property tax burden, with the county's base tax rate of 0.02% being significantly below the state average of approximately 1%.

The actual tax rate you pay varies depending on your property's location within Cimarron County due to special taxing districts such as school districts, municipal services, and local improvement districts. These additional assessments can increase your total effective tax rate beyond the base county levy. All property is assessed at fair market value without assessment caps, though various tax credits are available to qualifying property owners who submit the required applications.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
Base County Levy0.02%Core county services, administration, roads
School DistrictVaries by districtEducational services, varies by location
Municipal ServicesVaries by cityCity services where applicable
Special DistrictsVariesFire districts, library districts, other local services
Total Effective RateVaries 0.02% - 1.5%+Combined rate depends on property location

Rates shown are for FY 2025-2026 levy year. Your actual tax rate depends on which taxing districts serve your property address. Contact the Cimarron County Assessor at (580) 544-2251 for your specific district combination and total rate.

Section 3

When Are Property Taxes Due?

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

First Installment
Nov 1
Delinquent after Dec 10
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 Cimarron County are additional property tax bills issued when there are changes in property ownership, new construction completion, or property improvements that increase assessed value mid-year. These taxes cover the period from when the change occurred until the end of the current tax year, prorated accordingly.

For example, if you purchase a newly constructed home in March that wasn't included in the October assessment, you'll receive a supplemental tax bill covering March through the following October. The supplemental tax is calculated using the same tax rate as your regular property tax bill, applied to the additional assessed value for the remaining months of the tax year.

Example Calculation

Example 1: $300,000 Home

  • Market/Assessed Value: $300,000
  • Less: Homestead Credit (if applied): $1,000
  • Net Taxable Value: $299,000
  • Tax Rate (estimated average): 0.75%
  • Annual Tax: $2,243
  • Monthly Escrow: $187

Example 2: $600,000 Home

  • Market/Assessed Value: $600,000
  • Less: Homestead Credit (if applied): $1,000
  • Net Taxable Value: $599,000
  • Tax Rate (estimated average): 0.75%
  • Annual Tax: $4,493
  • Monthly Escrow: $374

Example 3: $1,000,000 Home

  • Market/Assessed Value: $1,000,000
  • Less: Homestead Credit (if applied): $1,000
  • Less: Senior Citizen Credit (if qualified): $200
  • Net Taxable Value: $998,800
  • Tax Rate (estimated average): 0.75%
  • Annual Tax: $7,491
  • Monthly Escrow: $624

All credits shown require annual application and approval. Actual rates vary by specific taxing districts.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Cimarron County require borrowers to maintain an escrow account for property taxes, collecting monthly payments and paying your tax bill directly to the county when due on November 1st. Your lender will analyze your escrow account annually, typically adjusting your monthly payment based on the previous year's actual tax bill and any anticipated changes.

Since Cimarron County taxes are due November 1st following the October levy, lenders typically pay the bill in early November using funds collected throughout the year. You should receive an escrow analysis statement from your lender showing the tax payment, and any shortage or surplus will be reflected in your monthly payment adjustment. Property owners without escrow accounts are responsible for making direct payments to the Cimarron County Treasurer by the November 1st deadline to avoid penalties.

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Section 6

Frequently Asked Questions

Q: When are property taxes due in Cimarron County? A: Property taxes are levied each October and due on November 1st following the levy year. For the current FY 2025-2026 tax year, taxes are due November 1, 2025.

Q: What tax credits are available and how do I apply? A: Oklahoma offers homestead credits for primary residences and senior citizen credits for qualifying property owners age 65+. These are tax credits that reduce your tax bill and require annual application through the County Assessor's office by March 15th.

Q: How does the homestead credit work? A: The homestead credit provides property tax relief for your primary residence and includes caps on assessment increases. You must file an application with supporting documentation. This is not automatic and must be renewed periodically.

Q: How often are properties reassessed? A: Oklahoma law requires annual revaluation of all property. The County Assessor reviews market data yearly to determine fair market value as of January 1st for the following tax year.

Q: What if I disagree with my property assessment? A: You can appeal your assessment to the County Board of Equalization. Appeals must typically be filed by April 1st following the assessment notice. Contact the County Assessor's office for specific deadlines and procedures.

Q: What are the penalties for late payment? A: Late payments incur interest and penalties. Contact the Cimarron County Treasurer at (580) 544-2251 for current penalty rates and payment options.

Q: Can I pay my property taxes online? A: Contact the Cimarron County Treasurer's office to inquire about online payment options and accepted payment methods for property tax bills.

Q: How do special districts affect my tax bill? A: Special taxing districts like school districts, fire districts, and municipal services add their own tax rates to the base county rate. Your total rate depends on which districts serve your specific property location.

Q: What happens if I don't pay my property taxes? A: Unpaid property taxes become a lien against your property. After a specified delinquency period, the county may initiate tax sale proceedings. Contact the County Treasurer immediately if you're unable to make payment arrangements.

Verified Sources

Backed by 10 Official Government Sources

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

01
State
HOME_IncomeLmts_State_OK_...huduser.gov
02
Tax Doc
Sales Tax News Release January 2026 - Oklahoma.govoklahoma.gov
03
County
cimarron school district #i-92 - major county - oklahomasai.ok.gov
04
County
GRANT COUNTY, OKLAHOMA - OK State Auditorsai.ok.gov
05
County
Deliver Appeal To: County Board of Equalization JUN 26 2023co.routt.co.us
06
Property Valuation and Maintenance Plan Kenneth H ...losalamosnm.us
07
State
Overview of State Issuesoksenate.gov
08
Tax Doc
Tax Delinquent, CSVtax-office.traviscountytx.gov
09
CADSTANDv1_1.docfgdc.gov
10
County
GRANT COUNTY, OKLAHOMA - Oklahoma Digital Prairiedigitalprairie.ok.gov
All sources verified as of 2025 Tax Year

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