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How do I amend CA 540 returns - Form1040X and needs a 540X not a CA X that shows up in the return

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To advise staff that effective January 2, 2018, Form 540X, Amended IndividualIncome Tax Return, will be replaced by newly revised 540 series forms (540, 540NR Long, 540NR Short, or 540 2EZ) each to be filed with the new Schedule X, California Explanation of Amended Return Changes, for amending tax years 2017 and after ...Mar 9, 2018

New Amended Return Process for Tax Years 2017 and after Including ...

https://www.ftb.ca.gov/aboutFTB/Public_Service_Bulletins/2018/14-0309.shtml

Tags: state,form