What does CM actually cover?

[Dinoswearunderpants]

My DH has three other children aged 16, 13 and 10. He pays above what CMS have stated and does all the travel to collect them (90 miles round trip each way).

He also pays half of everything on top. School trips, hobbies, prom, transport to school.

We have a DS of our own and I'd say I pay 80% of costs associated with him. I earn more than DH so I don't mind paying more however there is of course some contusion with all these extras he pays.

I'm curious to know what exactly CM should cover and what other people do.

It's interesting how personally invested some people are. I'm commenting on the OPs question.
I have no skin in this game, I'm not an ex wife or a second wife, the only DC I have is shared with my husband and he doesn't have any others. I just think if men have children they should properly support them in all ways, regardless of the next family they decide to create. It shouldn't be that controversial a view.

"regardless of the next family" is very controversial, especially on this board.
You won't understand but many of us do find it hugely offensive when people suggest our children should not have been born, should not expect to be supported in the same way by their father, don't deserve any dedicated time with him like their half siblings do because they sleep under the same roof on week nights and on and on and on it goes.
None of the children deserve to be disregarded, and none of them are free.

You’ve just made this up- he does 90 mile round trip so of course he has them and OP is covering most of the costs of their kid, so she must be working.

Op if he's paying 50% of your household bills and 20% of your costs for your child he's contributing a hell of a lot more towards your child than his three oldest. Does he contribute towards your household food bill?
£53 quid per child per week might cover food but very little else.

Not really, it was way more than he'd have had to pay if they'd gone down the legal route, so in that sense it wasn't based on earnings. It was based on what was needed by his ex wife and children to ensure they wouldn't just be scraping by each month. Or worse. Yes he could afford it, but he wasn't earning a fortune, just wanted to do the right thing.

@UndercoverCop
So he moved away, can you tell us how you know this has op has not stated in her post who done the moving away after the split.

What you want him to do tie the older two up to stay with him on the weekends he meant to have them, thats what happens with kids with two homes they grow up and prefer to stay in one house due to mates and things not that you would know this.

But why are you even coming on a STEP PARENTS platform and commenting when you know sfa about it I'm baffled.

Or irl are you the ex that's what's to get your say.