How do I file an amended return for California?
To file an amended return for California, you must complete the appropriate amended tax form and attach Schedule X, California Explanation of Amended Return Changes. The specific form you use depends on your filing status:
- California Resident: Complete an amended Form 540 or Form 540 2EZ. Check the box at the top indicating "AMENDED return."
- California Nonresident or Part-Year Resident: Use an amended Form 540NR and check the "AMENDED return" box.
Attach Schedule X to explain the changes made to your return. For Form 540 or Form 540 2EZ, include all required schedules and supporting forms. For Form 540NR, also attach Schedule CA (540NR) and any other affected forms.
For military filers amending a return, attach Schedule X and check box k (Military HR 100) on Part II, line 1. Include a copy of the federal Form W-2 if applicable.
If you are amending for specific reasons such as claiming credits (e.g., Natural Heritage Preservation Credit - Form 3503, Enterprise Zone Deduction - Form 3805Z), use the appropriate forms and follow the software instructions provided by Online Taxes (OLT).
Amended returns for tax years 2022, 2023, and 2024 can be e-filed if available. Returns for years prior to 2022 must be printed and mailed.
Source:
Form 540
Form 540 2EZ
Form 540NR
Schedule X
Publication 1032
Disclaimer: Always verify details with the official California Franchise Tax Board (FTB) forms and instructions or your local Department of Revenue.