@march4666 wrote:
....I understand I have to file a Form 1310, why isn't that part of the tax software program to support filing electronically?
You can e-file a return containing a Form 1310 but under limited circumstances.
If any attachments are required, the return cannot be e-filed.
Further, the return cannot be e-filed if a state return is in the return package and the state does not allow e-filing for a decedent's return (the fact that the state might not even require a similar form to 1310 notwithstanding).