If my sister is unable to sign her return that I prepared, will it be accepted if I sign for her and include a copy of my PofA?

[4cvbi]

She is recovering from a stroke and without capacity to sign..and 1500 miles from me.

[Leonard]

No, you do not need to attach a letter if you have a POA for your sister who is unable to sign her return. You can sign the return for your sister as POA. Sign your spouse’s name, followed by the words, “By (your signature), POA.”