Oklahoma — Innocent Spouse Relief
More about the Oklahoma Form L-21
We last updated Oklahoma Form L-21 in April 2022 from the Oklahoma Tax Commission. This form is for income earned in tax year 2021, with tax returns due in April 2022. We will update this page with a new version of the form for 2023 as soon as it is made available by the Oklahoma government.
Other Oklahoma Individual Income Tax Forms:
In addition to information about Oklahoma's income tax brackets, Tax-Brackets.org provides a total of 55 Oklahoma income tax forms, as well as many federal income tax forms. Here's a list of some of the most commonly used Oklahoma tax forms:
|Form Code||Form Name|
|Form 511||Individual Resident Income Tax Return|
|Form 511NR||Individual Nonresident/Part-Year Income Tax Return|
|Form OW-8-ES||Estimated Tax Declaration for Individuals|
|Form 511-V||Oklahoma Individual Income Tax Payment Voucher|
|511-Pckt||Individual Resident Income Tax Return Packet (instructions, forms and tables)|
Disclaimer: While we do our best to keep Form L-21 up to date and complete on Tax-Brackets.org, we cannot be held liable for errors or omissions. Is this form missing or out-of-date? Please let us know so we can fix it!