Oklahoma's homestead exemption: what it saves and when to file after you buy

What does the homestead exemption do?

Oklahoma takes $1,000 off the assessed value of the home you own and live in (68 O.S. § 2889). Assessed value is only a slice of what the home is worth. Counties assess homes at 11% to 13% of value. At Oklahoma County's 11%, $1,000 of assessed value is about $9,091 of the home's value.

On the bill, it works out to $1 for every mill your district levies. In Oklahoma County that's $87.80 to $140.78 a year, depending on the district. It isn't automatic. The statute says: “Any purchaser or new owner of real property must file an application for homestead exemption as herein provided.”

Worth knowing: This guide sums up the state rules and two county assessors' pages as of Oct 12, 2026. Your county assessor is the one who grants the exemption, so check the assessor's page for your county before you file.

What is it worth in your county?

The exemption is a flat $1,000 of assessed value, so what it saves depends only on your levy. Here it is for a few districts and counties. The additional exemption for lower incomes takes off the same amount again.

Oklahoma County rows are 2025 district totals, certified Nov 17, 2025. The other rows are the Tax Commission's 2024 county averages, the latest it has published. Your district can be higher or lower.

Statewide, county averages run from 66.170 mills in Cimarron County to 127.479 in Tulsa County. So the exemption is worth about $66 to $127 a year, depending on where you buy.

What does it do to one house?

Take a $300,000 house (an example you can change in the calculator) in Oklahoma City with Oklahoma City schools, district code 200 (122.90 mills). At 11%, it's assessed at $33,000.

Filing takes $122.90 a year off this house, or about $10.24 a month. With the additional exemption too, it's $245.80 a year. The additional exemption is only for households that made $30,000 or less.

When does it start after you buy?

Two dates decide it. You have to own the house and live in it on January 1. Your deed has to be signed by then and recorded with the county clerk by February 1 (68 O.S. § 2888).

Then you file by March 15 for that tax year. If the assessor mails you a notice that your value went up, you get 30 days from that notice instead, when that's later. File after the deadline and it starts the next tax year (68 O.S. § 2892).

You can file any time of year, even right after closing. Form 921 has a part for that: “To apply for next year's exemption, complete section "B" of this application.”

Two example closings:

• Close in October 2026. You own it on January 1, 2027. File by March 15, 2027, and the exemption counts for the 2027 tax year.
• Close on January 15, 2027. You didn't own it on January 1, 2027. The first year it can count is 2028.

In Tulsa County, the treasurer mails tax bills in November (Tulsa County Assessor). So the first bill with your exemption on it comes near the end of the year it counts for.

One more catch, from the Tax Commission's rules: “In most cases, a person cannot obtain the exemption if the home was rented on January 1st.” If the seller rents the house back from you over New Year's, you aren't the one living there on January 1.

How do you file?

1. Get Form 921, the Tax Commission's homestead application. It goes back to your county assessor, not to the Tax Commission.
2. File it in the county where the house is. The law says you don't have to show up in person. In Tulsa County you can file online: find the house in the assessor's Property Search and click “Actions...” (Tulsa County Assessor). It also takes applications in person, by mail and at field offices.
3. In Oklahoma County, the assessor's site has Form 921 with instructions and links to an online filing portal.
4. Have answers ready for the form's questions. Are you a legal resident of Oklahoma? Is any part of the house rented out? Is it held in a revocable trust? Did you have a homestead exemption anywhere in the state last year?

Once it's granted, you don't reapply while you keep living there. Both counties' assessors say to file again if you move or change your deed.

You get one homestead exemption in the state, and that covers your spouse and minor children too. When you sell, the recorded deed counts as notice to the assessor. If you keep the old house and rent it out, tell the assessor in writing. An exemption you shouldn't have had can cost twice the tax it saved, plus interest and penalty. Doing it knowingly costs you the exemption for the next 2 years (§ 2892).

What else can you add to it?

The additional homestead exemption

If your household's gross income last year was $30,000 or less, you get another $1,000 off the assessed value (68 O.S. § 2890). The income counts everyone living in the house, including Social Security and pensions. Veterans' disability compensation doesn't count.

You apply every year by March 15 on Form 994. Oklahoma County's assessor lists that form as available only January 1 to March 15. From age 65, once you've been approved, you don't have to reapply each year.

The senior valuation freeze

At 65 and older, you can ask the assessor to freeze the home's taxable value. Your household income has to be at or under HUD's median income for your county or metro area. Tulsa County lists $90,300 for the 2026 tax year (Tulsa County Assessor). Oklahoma County's assessor says to ask for the exact figure.

It uses the same Form 994, filed by March 15, and you don't reapply once it's granted. It freezes the value, not the tax. The Tax Commission's rule says a new bond issue or levy can still raise the bill.

100% disabled veterans

Veterans with a 100% permanent disability, certified by the U.S. Department of Veterans Affairs, can get a much bigger exemption. Oklahoma County's assessor says it covers the full fair cash value of the homestead. Surviving spouses of totally disabled veterans can claim it too. You need the homestead exemption as well, and the form is 998.

The 3% cap

The state constitution caps how fast the assessor can raise the value: 3% a year for a homestead and 5% for other property. The cap doesn't apply the year a home sells, so the value can reset when you buy.

One more reason to file: the state's Strengthen Oklahoma Homes roof grant asks homeowners to show they have a homestead exemption (OID). Our new construction guide covers the grant.

Run your own numbers

• Property tax: Find your tax by school district, and what the homestead exemption saves you.
• Mortgage payment: Your monthly payment with Oklahoma tax and insurance, PMI, HOA and the amortization schedule.
• Affordability: How much house your income covers once Oklahoma tax and insurance are in.

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