Oklahoma County Property Tax Appeal — Oklahoma

Rob Hartley·Updated February 9, 2026

Oklahoma County is home to the state capital, Oklahoma City, and is the most populous county in Oklahoma. Oklahoma County, Oklahoma, consists of 19 cities, with Edmond being the most populous. The county is a major economic and cultural center for the state, with a diverse population and strong government, healthcare, and energy sectors.

Notable cities: Oklahoma City, Edmond, Moore, Midwest City, Norman

Median Home

$192,500

Tax Rate

1.00%

Annual Tax

$1,891

Population

approximately 800,000

2026 Appeal Deadline: 30 calendar days from the date the valuation notice was mailed

Upon receipt of a Notice of Increase in Valuation of Real or Personal Property (OTC 926 & OTC 926-P), a taxpayer has 30 calendar days from the date the notice was mailed to file a written protest with the county assessor. If property values have not been adjusted by the county assessor from the previous tax year, a taxpayer may object to current property values by filing a protest on or before the first Monday in April.

Property in Oklahoma County, Oklahoma — local tax assessment and appeal guide

How Oklahoma County Assesses Property

11%of market value

Assessed by: Oklahoma County Assessor

Assessment cycle: annual

Notices typically mailed: middle of March

The assessed value is a percentage of the property's market value, which is then multiplied by the local tax rate to calculate the tax bill. If your property is valued at $100,000, the assessed value of your home is $11,000, since the county-wide assessment ratio is 11%.

The Appeal Process

Appeals are heard by the County Board of Equalization. The board shall be authorized and empowered to take evidence pertinent to said appeal and to confirm, correct, or adjust the valuation of real or personal property.

Step 1: File Form 974 informal protest with county assessor within 30 days of valuation notice

Step 2: The assessor must hold a hearing on the matter

Step 3: The assessor must issue a written ruling on your protest within seven days of the hearing

Step 4: If you disagree with the assessor's decision, you may appeal the county board of equalization within 15 days after the assessor mailed their decision

Step 5: If you don't agree with the board of equalization's decision, you may appeal to the county district court within 30 days of the board's decision

Required form: County Assessor Informal Protest Form 974

Filing Methods

online:Form 974 available from the Oklahoma Tax Commission website at https://tax.ok.gov

mail:Mail completed Form 974 to Oklahoma County Assessor's Office

in-person:320 Robert S Kerr Avenue, Oklahoma, Oklahoma, 73102

Evidence to Bring

comparable salesphotos of property conditionrepair estimatesprofessional appraisalsevidence of property defects

Oklahoma County Assessor Contact

Oklahoma County Assessor

Phone: (405) 713-1270

Address: 320 Robert S Kerr Avenue, Oklahoma, Oklahoma, 73102

Website: https://assessor.oklahomacounty.org

Online Portal: https://docs.oklahomacounty.org/AssessorWP5/AddressSearch.asp

Hours: Monday - Friday, 8:30 am - 4:45 pm (CST)

Tax Exemptions in Oklahoma County

Homestead Exemption

$1,000 assessed value reduction

An exemption of $1,000 of the assessed valuation of the homestead property

Eligibility: Homeowner who resides in the property on a permanent basis on January 1Deadline: March 15th of the current tax year

Additional Homestead Exemption

Additional $1,000 assessed value reduction

An additional $1,000 assessment exemption if the gross household income from all sources did not exceed $30,000 for the past calendar year

Eligibility: Must have a gross household income from all sources of $30,000 or less for the prior calendar yearDeadline: Between January 1st and March 15th

Senior Valuation Limitation (Freeze)

Freezes property value from future increases

The Senior Valuation Limitation freezes the taxable fair cash value of the homestead property

Eligibility: Head of household must own the property and be 65 years or older prior to January 1 of the current year. Gross household income must not exceed the HUD qualifying income for the previous year in your county of residence. For example, the 2024 income limits are: Oklahoma County - $89,500Deadline: On or before March 15th, or within 30 days from the date of a notice of valuation increase

100% Disabled Veteran Exemption

Full property tax exemption

An exemption from property tax on homesteads is available for 100% disabled veterans. The exemption would be for the full fair cash value of the homestead real and household personal property

Eligibility: 100% honorably discharged disabled military veteran or their surviving spouse and an Oklahoma residentDeadline: Applications may be submitted throughout the year, but only those received by March 15 will be effective in the current year

Official Resources

Oklahoma County Assessor's Office →

Official county assessor website providing property assessment information and services for Oklahoma County.

Oklahoma Tax Commission Property Tax Division →

State-level property tax information and regulations administered by the Oklahoma Tax Commission.

Oklahoma County Property Search →

Online property lookup portal for searching assessment records and property information in Oklahoma County.

Oklahoma County Treasurer Property Tax Payments →

County treasurer's office for property tax payment information and services.

Check Your Oklahoma County Assessment

Enter your address to see if your Oklahoma County property is overassessed.

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Oklahoma County?

You have 30 calendar days from the date the valuation notice was mailed to file a written complaint with the county assessor. If property values have not been adjusted from the previous tax year, you may file a protest on or before the first Monday in April. After the assessor's decision, appeals must be filed within 15 calendar days to the County Board of Equalization.

How do I file a property tax appeal in Oklahoma County online?

The protest must be submitted on the current version of the County Assessor Informal Protest Form 974 available from the Oklahoma Tax Commission website at https://tax.ok.gov. You can also contact the assessor's office at(405) 713-1270 for assistance. The county provides online access to property records at https://docs.oklahomacounty.org/AssessorWP5/AddressSearch.asp.

What is the homestead exemption worth in Oklahoma County?

Homestead exemption is a $1,000 deduction from the gross assessed value of your home. In most cases this will result in between $80 and $120 in tax savings. If your household income is under $30,000, you may qualify for an additional $1,000 exemption, effectively doubling your savings.

What happens at a Board of Equalization hearing in Oklahoma County?

The board shall be authorized and empowered to take evidence pertinent to said appeal and to confirm, correct, or adjust the valuation of real or personal property. The county board of equalization shall make a record of each proceeding involving an appeal from action by the county assessor either in transcribed or tape recorded form. You'll need to present evidence like comparable sales, photos, or professional appraisals to support your case.

How is my Oklahoma County property assessment calculated?

Oklahoma County uses an assessment ratio of 11% of your property's market value. For example, if your property is valued at $100,000, the assessed value of your home is $11,000. Your tax bill is calculated by multiplying this assessed value by the local millage rate, which varies by location within the county. The median effective tax rate in Oklahoma County is 1.00%.

Can seniors get additional property tax relief in Oklahoma County?

Yes, seniors have several options. The Senior Valuation Limitation freezes the taxable fair cash value of the homestead property for those 65 or older with income below $89,500 in Oklahoma County. Additionally, if you're 65 or older or totally disabled with household income under $12,000, you may be eligible for a property tax refund through Form 538-H.

What forms do I need to file a property tax appeal in Oklahoma County?

Start with Form 974 (County Assessor Informal Protest) within 30 days of receiving your valuation notice. If you disagree with the assessor's decision, file Form 976 (Formal Appeal County Board of Equalization) within 15 days. All forms are available at https://tax.ok.gov or by calling the assessor's office at(405) 713-1270.

For state-wide appeal information including Oklahoma's assessment ratio and deadlines, see our Oklahoma Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

More Oklahoma Counties

Tulsa County (Tulsa)

← All Oklahoma property tax appeal info

Sources: https://oklahoma.gov/content/dam/ok/en/tax/documents/forms/ad-valorem/current/976.pdf | https://oklahoma.gov/content/dam/ok/en/tax/documents/forms/ad-valorem/current/974.pdf | https://www.ownwell.com/trends/oklahoma/oklahoma-county | https://assessor.oklahomacounty.org | https://www.oklahomacounty.org/elected-offices/assessor

Last verified: 2026-02-09