Midwest City Tax Rates: Sales, Property, and Exemptions

Midwest City, Oklahoma has a combined sales tax rate of 9.10% — 4.50% to the state and 4.60% to the city, with no county sales tax added by Oklahoma County.¹ Property taxes run separately on a millage system, with a combined rate that has reached roughly 126.69 mills applied to 11% of a home’s fair cash value.² Both figures move: voter-approved city measures can shift the sales rate, and property millage shifts year to year as school districts, the county, and bond votes adjust.

What Makes Up the 9.10% Sales Tax

Oklahoma’s statewide sales tax is 4.50% on gross receipts from most retail sales of tangible goods and certain services.³ Oklahoma County adds nothing, so the entire local share — 4.60% — belongs to the City of Midwest City and funds municipal services directly.¹ To confirm the current rate before a large purchase, check the Oklahoma Tax Commission’s quarterly rate charts or the Sales and Use Tax Rate Locator maintained by the University of Oklahoma.

What Gets Taxed Differently

Groceries are the biggest exception you’ll notice on a receipt. Since August 2024, Oklahoma has exempted most grocery food from the 4.50% state sales tax.⁴ The city’s 4.60% still applies, so grocery items at a Midwest City store ring up at 4.60% rather than 9.10%. Prepared food, alcohol, and dietary supplements remain fully taxed.

Prescription drugs sold by a licensed prescriber for the treatment of human beings are exempt, along with insulin and medical oxygen. Over-the-counter medications don’t qualify, so cold medicine and pain relievers are taxed at the full 9.10%. Residential natural gas and electricity are exempt from state sales tax, though local sales tax still applies to utility bills.⁵

When you buy from an out-of-state or online seller that doesn’t collect Oklahoma tax at checkout, you owe use tax at the same combined 9.10% rate. If the seller collected tax for another state, you get credit for that amount and owe only the difference. The Oklahoma Tax Commission looks for unreported use tax during audits, especially on high-value items like equipment, furniture, or vehicles brought into the state.

How Property Tax Is Calculated

Property taxes stack levies from the overlapping jurisdictions you live in: Midwest City, your school district (Mid-Del for most addresses), Oklahoma County, and various special districts. One mill equals one dollar of tax per $1,000 of assessed value. Oklahoma County data has put the combined rate on Midwest City parcels at approximately 126.69 mills, though exact figures shift year to year as budgets and bond measures change.²

The mill rate is not applied to your full market value. The Oklahoma Constitution requires real property to be assessed at between 11% and 13.5% of fair cash value, and Oklahoma County uses the 11% floor. A home valued at $200,000 has an assessed value of $22,000.² This fractional assessment is why Oklahoma property tax bills tend to come in lower than the mill rate alone might suggest.

Here’s the math on a home the assessor values at $180,000:

Assessed value: $180,000 × 0.11 = $19,800
Tax before exemptions: $19,800 × (126.69 ÷ 1,000) = $2,508.46
After standard homestead exemption: ($19,800 − $1,000) × 0.12669 = $2,381.77

You can look up your parcel’s current valuation and account number through the Oklahoma County Assessor’s online database.

Exemptions That Lower the Bill

Standard Homestead Exemption

Any owner who occupies the property as a primary residence on January 1 can claim a $1,000 reduction in assessed value. At a 126 mill rate, that saves about $126 a year. Once approved, it carries forward without annual renewal.

Additional Homestead Exemption for Seniors

Homeowners age 65 or older with total household income at or below $30,000 qualify for an additional homestead exemption stacked on top of the standard one.⁶ Gross household income counts all income from every source received by everyone living in the home, including Social Security, pensions, and workers’ compensation, with veterans’ disability payments excluded. You have to apply each year by March 15, or within 30 days of receiving a valuation change notice, whichever is later.

Senior Valuation Freeze

Separately, Oklahoma offers a valuation limitation that locks in the taxable value of a senior’s homestead, so rising market values don’t push the assessment up. The head of household must be 65 or older on January 1, must own and occupy the home, and must have household income below the HUD qualifying income for Oklahoma County.⁶ The HUD figure varies by county and year, so check the current Form 994. Same deadline: March 15 or 30 days after a valuation notice.

Disabled Veteran Exemption

Veterans with a 100% permanent service-connected disability certified by the U.S. Department of Veterans Affairs can claim a full exemption on the fair cash value of their homestead, which effectively eliminates the property tax bill on that home.⁷ The veteran must have been honorably discharged and must be an Oklahoma resident. Surviving spouses of qualifying veterans remain eligible. The exemption comes from Article 10, Section 8E of the Oklahoma Constitution, and there is no cap on home value and no income test.⁸

Protesting Your Valuation

If the assessor’s valuation looks too high, you have the right to protest, but the deadlines are strict. When the assessor mails a notice of valuation change, you have 30 calendar days from the mailing date to file a written complaint with the county assessor using Form 974.⁹ If your value wasn’t adjusted from the prior year but you still think it’s too high, you can file on or before the first Monday in April. Miss the 30-day window and the assessor’s number becomes final for that tax year.

If you disagree with the assessor’s written decision on your protest, you have 15 calendar days from the mailing date of that decision to appeal to the county board of equalization.⁹ All proceedings must conclude by May 31 or the board’s adjournment date. Bring comparable sales from nearby properties; assessors respond to market evidence, not general objections.

Payment Deadlines and Delinquency Penalties

Midwest City property taxes become due on November 1 each year. You can pay in full before January 1, or split the bill in half. If you choose installments, at least half must be paid before January 1, with the balance due before April 1. If the first half isn’t paid by January 1, the entire annual tax becomes delinquent on that date, not just the first installment. Pay the first half on time but miss April 1, and the remaining half goes delinquent.¹⁰

Delinquent property taxes accrue interest at 1.5% per month and keep accruing until the balance is paid or until the accumulated interest equals 100% of the unpaid tax, where it caps.¹¹ On a $2,500 bill, that’s $37.50 a month. Properties left delinquent long enough can face a county tax lien sale. The Oklahoma County Treasurer collects the payments and accepts them online, by mail, or in person; keep the receipt confirmation in case a payment date is ever disputed.

1
Oklahoma Tax Commission. Sales and Use Tax Rate Charts
2
Oklahoma County Assessor. Oklahoma County – Vital Statistics
3
Justia. Oklahoma Code 68-1354 – Tax Levy – Rate – Sales Subject to Tax
4
Oklahoma Tax Commission. State Sales Tax on Food and Food Ingredients
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Justia. Oklahoma Code 68-1357v4 – Exemptions
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Oklahoma Tax Commission. 2026 Form 994 Application for Property Valuation Limitation and Additional Homestead Exemption
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Oklahoma.gov. Benefits Pages
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Oklahoma County Assessor. DAV Exemption Application
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Oklahoma Tax Commission. 2026 Form 974 County Assessor Informal Protest
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Justia. Oklahoma Code 68-2913 – Due Date of Ad Valorem Taxes
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New York Codes, Rules and Regulations. Oklahoma Code 68-2913 – Due Date of Ad Valorem Taxes – Penalty on Delinquent Taxes