Your child support is calculated for the amount of days you have your children, to provide for their basics. Their cost of living. It's his job to supply EVERYTHING on his visits. I felt like that too for the first few months. Then I realised how much it costs to raise a child alone. No alternating expenses from each others pays any more. You'll change viewpoints many times, over the next few years.. Just like I have. You can only do what feels right, and seems to work for everyone. Just don't get into the trap of not wanting him to cover any costs 'because he pays child support.' I still expect ex to pay for half of girl guides fees, swimming lessons, and alternate school expenses like dance, excursions etc. And he is happy to do it. (Now. After 2 or 3 years of whinging.) he sees how happy it makes his daughter to feel comfortable knowing she can ask mummy OR daddy for money for planetarium or a new dress- either of us will happily accommodate if its needed. If i'm not flush i'll text him and ask him to buy. Last year i earned way more than him (he had a zero CS assessment too) so i covered more school expenses. It was a slog and some mediation to get to this point though. I think the zero child support assessment for last year helped open his pockets a little