When is the deadline to file my state taxes?

The deadline to file your state taxes in Oklahoma is typically April 15th of each year. However, if this date falls on a weekend or holiday, the deadline is extended to the next business day. It is important to note that this deadline applies to both filing your tax return and paying any taxes owed to the state. If you are unable to file your taxes by the deadline, you can request an extension to file your return, but you must still pay any taxes owed to avoid penalties and interest. It is recommended to file your taxes as soon as possible to avoid any last-minute complications and ensure you meet the state's deadline.