Maybe. If he lived with you the whole year and had less than $5050 of income not counting Social Security, you may be able to claim him for the $500 credit for other dependents.
Qualifying relative
When you add someone as a dependent, we'll ask a series of questions to make sure you can claim them. There may be other tax benefits you can get when you claim a dependent.
Related Information:
Here are the qualifications for claiming him as a dependent as a qualifying relative.
The food stamps don't count as income. When you add someone as a dependent, we'll ask a series of questions to make sure you can claim them, so if you support him, go ahead and add him and answer the questions.