You cannot eFile a MA Tax Amendment anywhere, except mail it in. However, you can prepare it here on eFile.com.
Option 1: Sign into
your eFile.com account, modify your Return and download/print your Form 1 (resident form) or Form NR/PY (nonresidents and part-year residents) under My Account. Check off the space next to the amended return text on the top of your form to indicate that it's an amended return. Sign the amended return and mail it to the address listed below
Option 2: You will need to complete, sign
Form 1 or
Form 1-NR/PY for the appropriate Tax Year, making sure you fill in the circle next to the amended return text on the top of the form (Tax Years 2016-2022)
or write "Amended return" on the top of the form (2015 and earlier Tax Years) to report that it's an amended return - Print, Mail the Form to MA Tax Department to:
Massachusetts Department of Revenue, Customer Service, Bureau
PO Box 7031
Boston, MA 02204