2026 Property Tax Due Dates
December 31
Full or first half
March 31
Second half (if split)
Payment Methods
Online, Mail, In-Person
Ottawa County Treasurer
Phone
(918) 542-8232How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Ottawa County Treasurer
In Person
Visit the Treasurer's office
About Property Taxes in Oklahoma
Oklahoma property taxes are administered at the county level. Residential property is assessed at 11% of fair cash value, agricultural at 11%, and commercial at 11% as well (though rates vary by use). Oklahoma's assessment ratios and mill rates produce among the lower effective property tax rates in the country. Oklahoma also has a distinctive feature: the assessed value of owner-occupied primary residences cannot increase by more than 3% per year (the "assessment limitation"), regardless of market value increases. This provides strong protection against rapid tax increases for homeowners.
Payment & Assessment
Oklahoma property taxes are due December 31 and may be paid in two equal installments: First half: Due December 31 Second half: Due March 31 of the following year If the total tax is less than $100, it must be paid in full by December 31. A penalty of 1.5% per month applies to late payments. Most counties offer online payment. Contact your county treasurer for payment options.
Statewide framework for Oklahoma. Your county's specific rates and deadlines are shown above.
Other Counties in Oklahoma
About Ottawa County
Ottawa County is a county located in the northeastern corner of the U.S. state of Oklahoma. As of the 2020 census, the population was 30,285. Its county seat is Miami. The county was named for the Ottawa Tribe of Oklahoma. It is also the location of the federally recognized Modoc Nation and the Quapaw Nation, which is based in Quapaw. Ottawa County comprises the Miami micropolitan statistical area, which is included in the Joplin-Miami, MO-OK combined statistical area. The county borders both Kansas and Missouri. The county was an important lead and zinc mining region during the early 1900s, and in 1983, the Tar Creek Superfund site was inaugurated to clean up tailings and prevent groundwater and waterway contamination with leachates.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.