I am a foster parent for my 3 grandkids,I get a perdium monthly. Do I have to file taxes on it?

It's per diem.

Child support received is not considered taxible income, but I'm guessing this might be something else. Who pays it to you?

I get it from yhe state of Indiana

I have merged your posts, please to add more info, answer your own question. Do not start a new thread