What is the property tax rate in Oklahoma?
The property tax rate in Oklahoma averages 0.79% of home value for owner-occupied homes (Tax Foundation 2026, using the 2024 American Community Survey). That puts Oklahoma near the middle of the states, below Kansas at 1.21% and Texas at 1.40% and above Arkansas at 0.56% on the same measure.
The 0.79% figure is a ratio of taxes paid to home values, not a rate anyone levies. Your actual bill comes from three numbers: the county assessor’s fair cash value, the county’s assessment percentage and the total millage for your school district and city. For an apartment building, those three often produce a bill well above 0.79% of market value.
How Oklahoma sets assessed value
Oklahoma taxes property on its fair cash value, meaning market value, multiplied by a county assessment percentage. Real property may not be assessed at less than 11% or more than 13.5% of fair cash value, and a county cannot raise its percentage without a vote of the people.
Counties pick different percentages inside that range. Oklahoma County’s notice of value lists 11%. Canadian County uses 12%. The assessor aims to list each property as close as possible to 100% of fair cash value, and for income property that usually means looking at rents, expenses and recent sales of similar buildings.
Exemptions then come off the assessed value. The homestead exemption is the best known, but it applies only to an owner-occupied home, so it does nothing for a rental building.
| Step | Oklahoma rule | Example on a $2M building |
|---|---|---|
| Fair cash value | Market value set by the county assessor | $2,000,000 |
| Assessment percentage | 11% to 13.5%, set by county | 12% (Canadian County) |
| Assessed value | Fair cash value times the percentage | $240,000 |
| Millage | Total mills for the school district and city | 107.21 mills |
| Tax | Assessed value times mills, divided by 1,000 | $25,730 |
How millage works in Oklahoma
A mill is $1 of tax for every $1,000 of assessed value. Canadian County explains its bills with an example: a $100,000 home at a 12% ratio has $12,000 of gross assessed value, less a $1,000 homestead exemption, so $11,000 is taxed. At 107.21 mills, the bill is about $1,179.31.
Millage is not set by the assessor. School districts, cities, counties and other bodies levy it, some by state formula and some by voter-approved bonds and levies. Canadian County alone has roughly 50 tax areas with different totals, so two buildings in the same county can carry different rates because they sit in different school districts.
Oklahoma’s cap on valuation increases
Oklahoma limits how fast taxable value can rise each year: 5% for most property, including apartment buildings, and 3% for homesteads and agricultural land. Oklahoma County’s notice of value states the limits plainly and adds that they can be lifted when the property is improved.
The cap is on taxable fair cash value, not on the bill. If voters approve a new school bond, the millage rises and so does the tax, even when the value is capped. Over a long hold in a rising market, the 5% cap can leave the taxable value of an older building well under what it would sell for.
The cap is a ceiling on growth, not a promise of growth. An assessor can hold a value flat when the market is flat. For a building that has been in the family for decades, the gap between the capped value and the price a buyer would pay can be the single largest number a buyer adjusts in underwriting, and you can see it coming by comparing your notice of value with a realistic price.
Does a sale trigger reassessment in Oklahoma?
Yes. The annual cap does not apply when title to the property was transferred during the preceding calendar year, so after a sale the assessor values the building at full fair cash value. The text of Article 10, Section 8B of the Oklahoma Constitution, as reproduced in the 2025-26 legislative resolutions, says the same.
For a seller, the reset is a buyer’s problem that becomes yours at the negotiating table. A buyer underwriting your building will not use your current tax bill. They will project the tax at their purchase price times the county percentage times the millage, and price the difference into the offer.
How to protest your property value in Oklahoma
You have 30 calendar days from the date the notice of value was mailed to file a written protest with the county assessor. The assessor must then schedule an informal hearing, in person or by phone on request.
If you disagree with the assessor’s decision, you can appeal to the county board of equalization within 15 days of the date that decision was mailed, using Form 976, with copies to the assessor and the board. The 30 days run from the mailing date, not the day you open the envelope, so read a notice the day it arrives.
- Day 0: notice of value mailed.
- Within 30 calendar days: written protest to the county assessor.
- Informal hearing with the assessor.
- Within 15 days of the assessor’s decision: appeal to the county board of equalization on Form 976.
Property tax exemptions for Oklahoma apartments
Most Oklahoma property tax exemptions are aimed at owner-occupied homes, seniors and veterans, so a standard apartment building pays on its full assessed value. The homestead exemption that Canadian County uses in its example is not available on a rental.
If your building has any special treatment on its tax account, get the paperwork and ask the county assessor whether it survives a sale before you set a price, because a buyer will ask.
Oklahoma property tax compared with nearby states
On the Tax Foundation’s 2026 measure, Oklahoma’s 0.79% sits between its lower-tax and higher-tax neighbors. Owners who are weighing an exchange out of state often look at this line first, but the effective rate is an average for homes, and apartments in each state are taxed under that state’s own rules.
| State | Effective rate (Tax Foundation 2026) |
|---|---|
| Texas | 1.40% |
| Kansas | 1.21% |
| Missouri | 0.89% |
| Oklahoma | 0.79% |
| New Mexico | 0.63% |
| Arkansas | 0.56% |
| Colorado | 0.50% |
What to pull together before you sell
A buyer will rebuild your tax line from scratch, so give them the inputs instead of letting them guess.
- The latest notice of value and the last three tax statements.
- The county assessment percentage and the total millage for your school district and city.
- The gap between your capped taxable value and a realistic sale price, so you can see the reset coming.
- Any improvements added in the last year, since they can lift the cap before you sell.
- Any bond issues on the next ballot in your school district, which change the millage a buyer will pay.
Proposals to change Oklahoma property tax
State Question 847 is pending on the November 3, 2026 statewide ballot, according to the State Election Board. If voters approve it, the yearly cap on taxable value would drop from 5% to 4% for apartments and other non-homestead property and from 3% to 1.75% for homesteads and agricultural land, starting in 2027. It amends Article 10, Sections 8B and 8C of the constitution and does not set millage rates. Published summaries do not describe any change to the reset on sale.
Until the vote is certified, plan on the current 5% cap. Check the result and the official ballot text before you build any change into a sale projection.
Worked example: property tax on a $2M Oklahoma apartment building
Take a 30-unit building in Canadian County that a buyer agrees to purchase for $2,000,000. The seller bought it years ago, and the 5% cap has held its taxable fair cash value to $1,600,000. At the 12% county percentage, assessed value is $192,000, and at 107.21 mills the seller’s bill is about $20,584.
After the sale, the cap falls away for the next valuation. The assessor values the building at its $2,000,000 fair cash value, for $240,000 assessed and a bill of about $25,730, or 1.29% of value. That is $5,146 a year more than the seller paid, at the same millage.
The buyer subtracts that $5,146 from net operating income. At an illustrative 6% cap rate, it takes about $85,768 off what the buyer can pay. In a county using 11%, the reset bill on $2,000,000 at the same 107.21 mills would be about $23,586 instead.
| Scenario | Taxable value | Assessed (12%) | Yearly tax |
|---|---|---|---|
| Seller, capped value | $1,600,000 | $192,000 | $20,584 |
| Seller next year if not sold (5% cap) | $1,680,000 | $201,600 | $21,614 |
| Buyer after reset to sale price | $2,000,000 | $240,000 | $25,730 |
| Difference after sale | $400,000 | $48,000 | $5,146 |
How property tax affects your sale price in Oklahoma
Because Oklahoma resets value on sale, the tax line in a buyer’s pro forma is almost always higher than yours, and the gap grows the longer you have owned. Every dollar of that gap comes off net operating income, and the buyer capitalizes it at the market cap rate.
You can narrow the gap by showing buyers the millage for your exact tax area, the county percentage and the most recent notice of value, so they do not plug in a guess that is too high. A renovation right before a sale also lifts the cap, so time large projects with that in mind.
Selling an apartment building in Oklahoma
Skyline buys apartment buildings with five or more units in Oklahoma, including Oklahoma, Tulsa, Cleveland and Canadian counties. We buy directly, close on your timeline, and can work inside 1031 deadlines. We underwrite the tax reset ourselves, so you see how it affects the price before you sign.
For the tax on the sale itself, see Oklahoma capital gains tax on real estate. For the tenant rules a buyer inherits, see Oklahoma landlord-tenant law for apartment owners.
