Oklahoma Income Tax Filing Season Opens January 26, 2026
January 12, 2026
The Oklahoma Tax Commission (OTC) has announced that Oklahoma’s income tax filing season will officially open on Monday, January 26, 2026, aligning with the Internal Revenue Service’s national start date.
Taxpayers will have until Wednesday, April 15, 2026, to file their 2025 Oklahoma individual income tax returns.
Opening the filing season in coordination with the IRS helps streamline processing and reduce delays, especially for taxpayers who file both federal and state returns electronically. The OTC encourages taxpayers to file early, use electronic filing options when available, and ensure all required documentation is in order to help avoid processing issues.
For those with questions about federal tax forms, filing tools, or general guidance, the IRS offers a wide range of online resources, including interactive tools to help taxpayers determine credits, deductions, and filing status.
Helpful Resources
As the filing season approaches, taxpayers are encouraged to stay informed, gather records early, and seek trusted professional support when needed to make tax time as smooth as possible.