How does this work? I have a partner but am not married. I know I get SMP and Child Benefit, but if we claim for WTC & CTC as a couple, we're entitled to £20 per week more. If I claim as single, I get £150 more. We struggle anyway so this baby is a huge source of financial stress and I'm a student and won't be able to go back to work until Feb 2011. Do I claim as single or couple? We're not married.