You need to include all the schedules filed with your original return, and maybe more.
According to Filing an Amended Return in the 2022 Form 1 Instructions:
If you need to change a line item on your return, complete a new return with the corrected information and fill in the Amended return oval. Your amended return must include all schedules filed with the original return even if there are no changes to the schedules. Mail your amended return to the same address used for original returns. Do not file Form ABT with your amended return.
Additionally, according to the Massachusetts Department of Revenue's Amend a Massachusetts Individual or Business Tax Return page, if your amended state return results in a decrease in tax, you need to attach documentation that supports the change.
@Spielme3
