I am a SAHM, DH is freelance. Niether of us know about child tax credits. His salary depends on how much he is working. A mum at school was saying she doesn't know what they'll do without tax credits and I was embarrassed to say I don't know what they are or if we get them. An accountant sorts out the tax. DH has no idea if we get them either. We don;t need any more money but no idea how much less we might get if anything.