DS pays child maintenance to his ex for his DS via the CSA. (He was paying voluntarily but she thought she'd get more, she was wrong.) He has a minimum wage, part-time job so the sums involved are not large.
He will be starting a new college course later this year, but will be keeping his pt job; shifts can be arranged around his college hours but he'll probably work fewer hours. It seems from the CSA website that students are nil-rated for maintenance, and it seems "wrong" that he'll still be earning (albeit not a lot) but not expected to pay anything, even the £5 pw the unemployed are expected to pay.
Is this true?
(He'll pay something anyway.)