Oklahoma — Individual Income Tax Declaration for Electronic Filing
More about the Oklahoma Form 511EF
We last updated Oklahoma Form 511EF in January 2019 from the Oklahoma Tax Commission. This form is for income earned in tax year 2018, with tax returns due in April 2019. We will update this page with a new version of the form for 2020 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:
Disclaimer: While we do our best to keep Form 511EF 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 Is this form missing or out-of-date?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!