Arizona — Credit for Increased Research Activities - Individuals
More about the Arizona Form 308-I Tax Credit
We last updated Arizona Form 308-I in February 2024 from the Arizona Department of Revenue. This form is for income earned in tax year 2023, with tax returns due in April 2024. We will update this page with a new version of the form for 2025 as soon as it is made available by the Arizona government.
Other Arizona Individual Income Tax Forms:
In addition to information about Arizona's income tax brackets, Tax-Brackets.org provides a total of 96 Arizona income tax forms, as well as many federal income tax forms. Here's a list of some of the most commonly used Arizona tax forms:
| Form Code | Form Name |
|---|---|
| Form 140 | Resident Personal Income Tax Return |
| Form 140 Instructions | Income Tax Instruction Packet |
| Form 140A | Resident Personal Income Tax (Short) Package |
| Form 204 | Application for Filing Extension |
| Form 321 | Credit for Contributions to Qualifying Charitable Organizations |
View all 96 Arizona Income Tax Forms
Disclaimer: While we do our best to keep Form 308-I 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 Is this form missing or out-of-date?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!
Tax Form Sources:
- Arizona Department of Revenue ( http://www.azdor.gov/Home.aspx
) - Department of Revenue Income Tax Forms ( http://www.azdor.gov/Forms/Individual.aspx )