Oklahoma · Marshall County · Local exemptions · Updated Oct 2026

Marshall County, OK property tax exemptions (2026)

The property tax breaks that are set or run locally in Marshall County, on top of Oklahoma’s statewide rules: what each is worth here, who qualifies, where to apply and the deadline.

What is different in Marshall County

Oklahoma's senior valuation freeze has an income limit set separately for each county from HUD figures. In Marshall County the limit for tax year 2026 is $64,500 of gross household income for 2025. Apply to the Marshall County Assessor on OTC Form 994 by March 15.

Apply at: Marshall County Assessor
Phone: 580-795-2398
Local breaks: Senior Valuation Freeze (Property Valuation Limitation), county income limit
Tax year: 2026

Where to apply in Marshall County

Marshall County Assessor

Phone: 580-795-2398
Address: 100 Plaza, Rm 105, Madill, OK 73446

Official exemptions page

Other offices

Oklahoma Tax Commission, Ad Valorem Division – state agency: publishes each county's income limit every year (from HUD figures) and the application form

Local exemptions in Marshall County

Senior freeze or deferral

Senior Valuation Freeze (Property Valuation Limitation), county income limit

Freezes the taxable market value of your home at its value in the year you qualify, if your household income is at or below the Marshall County limit ($64,500 for tax year 2026). Your tax can still change if tax rates change or you make improvements.

Set by: state program, local amount
Tax year: 2026
Who qualifies: Head of household who owns and lives in the home on January 1 and is 65 or older on January 1, with gross household income for the prior calendar year (income of every type of everyone living in the home, taxable or not, as defined on Form 994) of $64,500 or less, the Marshall County limit for 2026.
Income limit: $64,500 gross household income for 2025 (tax year 2026, Marshall County; OTC list based on HUD figures)
How to apply: File OTC Form 994 with the Marshall County Assessor, listing all household income and your date of birth. You may be asked for proof of income.
Form: OTC Form 994
Deadline: March 15, or within 30 days after you receive a notice of valuation increase, whichever is later.
Renewal: If you are 65 or older and qualified before, you do not need to apply again each year (Form 994). If your household income goes over the county limit in a year, tell the assessor; the freeze also ends if you stop owning or living in the home.

Source: official page

State exemptions that also apply here

These breaks come from Oklahoma law. Their full rules, forms and deadlines are on the Oklahoma page.

All Oklahoma property tax exemptions

By group in Oklahoma: Seniors · Veterans · Disability · Surviving spouses

Savings estimate for Marshall County

Roughly what an exemption could save you a year: the value it takes off, times your tax rate.

Exemption

Value taken off ($)

Filled in when the exemption is a fixed dollar amount. You can change it.

Tax rate (%)

Marshall County median effective rate: 0.71% (taxes paid as a share of home value). Use your own rate if you know it.

Enter a value and a tax rateChoose an exemption or type the value it takes off.

Median effective rate in Marshall County: U.S. Census Bureau, American Community Survey, 2020–2024 5-year estimates, county figures as published by Tax Foundation. It is a county-wide middle value; rates differ by town and school district.

An estimate, not a bill. Nothing you type here is sent anywhere.

Eligibility finder for Marshall County

Answer a few questions to see which property tax breaks may fit you. Nothing you type here is sent anywhere.

Do you own the home and live in it as your main home?

Your age, or the year you were born

Leave empty if you'd rather not say.

Are you a veteran?

Do you have a permanent disability?

Are you the surviving spouse of a veteran, service member or first responder?

Yearly household income ($)

Everyone in the home, before taxes. Optional: used only to compare with income limits.

Do you own and live in the home?Answer the first question to see results.

A first check, not a decision: only your county, city or town assessor decides. We read ages, ratings and income limits only where the official rule states them plainly; otherwise we show the rule for you to check.

Document checklist for Marshall County

Pick the breaks you plan to apply for. You get a checklist of forms, documents, steps and deadlines to print or keep on your phone.

Questions about property tax exemptions in Marshall County

What property tax exemptions are there in Marshall County?

Where do I apply for a property tax exemption in Marshall County?

Marshall County Assessor Phone: 580-795-2398 Address: 100 Plaza, Rm 105, Madill, OK 73446. Also: Oklahoma Tax Commission, Ad Valorem Division, which state agency: publishes each county's income limit every year (from HUD figures) and the application form.

When is the deadline to apply in Marshall County?

Senior Valuation Freeze (Property Valuation Limitation), county income limit: March 15, or within 30 days after you receive a notice of valuation increase, whichever is later.

Is there an income limit for Marshall County’s local breaks?

Senior Valuation Freeze (Property Valuation Limitation), county income limit: $64,500 gross household income for 2025 (tax year 2026, Marshall County; OTC list based on HUD figures)

Do I have to reapply every year in Marshall County?

Senior Valuation Freeze (Property Valuation Limitation), county income limit: If you are 65 or older and qualified before, you do not need to apply again each year (Form 994). If your household income goes over the county limit in a year, tell the assessor; the freeze also ends if you stop owning or living in the home.

Good to know in Marshall County

The Additional Homestead Exemption (another $1,000 off assessed value) is not set by county: its income limit is $30,000 of gross household income in every county (OTC Form 994, 2026).
The Oklahoma Tax Commission publishes new county limits each year; the limits for tax year 2027 were not yet published when this page was checked (October 2026).

Think your assessed value is too high? See how to appeal in Marshall County.

Sources

Oklahoma Tax Commission: maximum income qualification amounts for 2026 Property Valuation Limitation (PDF)
OTC Form 994: Application for Property Valuation Limitation and Additional Homestead Exemption (2026)
Marshall County Assessor
Median effective tax rate for Marshall County: U.S. Census Bureau, American Community Survey, 2020–2024 5-year estimates, county figures as published by Tax Foundation. The rate is property taxes paid divided by home value.

Last checked: Oct 2026.