Who is required to file an Oklahoma individual income tax return?
Every Oklahoma resident who has sufficient gross income to require the filing of a Federal income tax return is required to file an Oklahoma return, regardless of the source of income. File Form 511. Those residents without a filing requirement, but who have Oklahoma taxes withheld (or who have made estimated tax payments) should also file the 511. There is a check off area in the name and address section of the form to indicate that there is no filing requirement. Every part-year resident, during the period of residency, has the same filing requirements as a resident. During the period of nonresidence, an Oklahoma return is also required if the Oklahoma part-year resident has a gross income from Oklahoma sources of $1,000 or more. File Form 511NR. Every nonresident with gross income from Oklahoma sources of $1,000 or more is required to file an Oklahoma income tax return. File Form 511NR. Those nonresidents without an Oklahoma filing requirement (less than $1,000 Oklahoma gross income
