I am a beneficiary to a trust. The bank administering it sent me a W9. As I read the instructions I don't have to sign it, so I filled in my SS# and returned it. They have sent it back, saying I forgot to sign it.
Am I obligated to sign it? If I am not obligated to sign it, is there any downside to cooperating?
I don't even know what backup withholding is; presumably that indicates I am not subject to it...