California — California Corporation Franchise or Income Tax Return
More about the California Form 100 Tax Return
We last updated California Form 100 in January 2024 from the California Franchise Tax Board. 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 California government.
Other California Corporate Income Tax Forms:
In addition to information about California's income tax brackets, Tax-Brackets.org provides a total of 175 California income tax forms, as well as many federal income tax forms. Here's a list of some of the most commonly used California tax forms:
| Form Code | Form Name |
|---|---|
| 3805-Z Booklet | Enterprise Zone Business Booklet |
| Form 100-ES | Corporation Estimated Tax |
| Form 541 Schedule K-1 | Beneficiary's Share of Income, Deductions, Credits, etc. |
| Form 3539 (Corp) | Payment for Automatic Extension for Corps and Exempt Orgs |
| Form 3537 (LLC) | Payment for Automatic Extension for LLCs |
View all 175 California Income Tax Forms
Disclaimer: While we do our best to keep Form 100 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 Is this form missing or out-of-date?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:
- California Franchise Tax Board ( http://www.ftb.ca.gov/index.shtml
) - Franchise Tax Board Income Tax Forms ( https://www.ftb.ca.gov/forms/ )