Purpose

Official source

Use Form 540 to amend your original or previously filed California resident income tax return. If the FTB adjusted your return, you should use the amounts as adjusted by the FTB. Check the box at the top of Form 540 indicating AMENDED return and follow the instructions. Submit the completed amended Form 540 and Schedule X along with all required schedules and supporting forms.

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Purpose

Official source

Use Form 540 to amend your original or previously filed California resident income tax return. If the FTB adjusted your return, you should use the amounts as adjusted by the FTB. Check the box at the top of Form 540 indicating AMENDED return and follow the instructions. Submit the completed amended Form 540 and Schedule X along with all required schedules and supporting forms.