Oklahoma property taxes (2026)

How Oklahoma property taxes work

Oklahoma property taxes are billed by the county treasurer in the fall and can be split without penalty: pay at least half by December 31 and the balance by March 31 (paying less than half by December 31 makes the whole bill delinquent January 1).

County assessors value property annually, with taxable fair cash value growth capped at 3% a year for homesteads under the constitutional cap (5% for other property) until a sale resets it. When your valuation increases, the assessor mails a notice in the spring — and your appeal clock is short.

Appeals start with the county assessor's informal review, then go to the county Board of Equalization — file within 30 days of the valuation-increase notice (or within the board's session for other protests). Beyond that sits the district court.

The homestead exemption knocks $1,000 off assessed value (roughly $75–$125 in tax), doubling for lower-income households — and the real prize for older homeowners is the Senior Valuation Freeze, which locks the taxable value at 65+ under county-median income limits.

When payments are due

Fall billing: pay at least half by December 31 and the balance by March 31.

How to appeal your assessment

The statewide rule: File with the county assessor within 30 days of your valuation-increase notice; unresolved protests go to the county Board of Equalization

Valuation-increase notices mail in spring. The 30-day window from the notice date is the one that counts — the Board of Equalization sessions run through spring into early summer.

1. Read your valuation notice (spring)Mailed when your fair cash value increases; the 30-day protest clock runs from its date.
2. File your protest with the assessorThe informal hearing with the assessor's office resolves many protests — bring comparable sales.
3. Continue to the Board of EqualizationIf unresolved, your protest moves to the county board's session for a hearing.
4. Escalate if neededBoard decisions can be appealed to district court.

County pages have the exact local deadlines, forms, and filing links.

Statewide exemptions

Reassessment

Assessors value annually with a four-year visual inspection cycle. Homestead taxable value growth is capped at 3% per year until the property sells.

Value notices (Notice of valuation increase) usually mail in spring.

Common questions

When are property taxes due in Oklahoma?

Bills come in the fall. Pay at least half by December 31 and the rest by March 31 — paying less than half by December 31 makes the entire bill delinquent on January 1.

How do I protest my Oklahoma valuation?

File with your county assessor within 30 days of the valuation-increase notice. It starts informal; unresolved protests go to the county Board of Equalization, and beyond that district court.

What is the Senior Valuation Freeze?

At 65+, if your household income is at or below your county's HUD median, the taxable value of your homestead freezes — permanently, while you qualify. It's the strongest senior benefit in the state and takes one application with the assessor.

What is the homestead exemption worth in Oklahoma?

$1,000 off assessed value — modest, typically $75–$125 a year — with a second $1,000 for lower-income households. File by March 15 with your county assessor.

How fast can my Oklahoma taxable value rise?

At most 3% a year on a homestead (5% for other property), no matter what the market does — until you sell, when the cap resets at market value for the buyer.