Income support

So I have been claiming income support I live with my parents but the past while me and my baby’s father have been getting on ( haven’t been living with him) and going try again, he lives across the road from my parents.. so me and the child are going move in.. I’m going to ring up and change my address etc.

He earns a good bit of money so I know I won’t be entitled to any..

But would this effect child tax & benefit.