LdiJ, I really appreciate your help here. I’m not trying to argue; I’m trying to understand. I did as you suggested and consulted a tax professional. The response was, “SSDI is included on line 1 of the Worksheet for Determining Support (pub 501). Line 1 includes all income, earned and unearned. Although the SSDI benefit is because of your disability and based on your income, it is his income, paid to his social security number and deposited in his checking account”. Your position makes sense to me, but I can’t find anything in tax code to support it. How do I figure out which pro is correct (you or my consult)? You’re very kind to stay with me on this!