Please or to access all these features

AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Maintenance and extra's

160 replies

ConflictedDad · 27/08/2026 13:13

Hi,

Not a mum, but believe in getting a broad perspective on pretty much everything (I do this with politics, health, work, etc lol).

I have a bit of a pickle, and would welcome your insight!

Divorced from ex-wife, now a little over 9 years ago. 3 kids:

Child1 has autism (undiagnosed), and receives Dla, he's going into year 11 next week.
2 other Children on spectrum too, but no benefits/diagnosis (Child2+3 are both 13)

I work full time, pay rent privately and look after my house. I have kids roughly 45% of the time - working out at around 170 nights a year, but also take on much of the admin load (appointments, forms, school stuff, etc)

I pay £350 maintenance a month (Private agreement, not CMS mandated), and also contribute 50/50 towards extra costs - trips, uniforms, hair cuts, glasses if they're over the voucher level, etc)

Ex receives Cb, UC and PIP. She'll also get the disabled child element of UC from my understanding.

I'm at a point where i'm unable to continue funding 50/50 of the 'extras' on top of the maintenance, rents have all gone up (£1,100 where I live now) as well as everything else, as we all know.

Would I be unreasonable to tell my ex that i'm unable to continue with this arrangement? We get along well, and are usually happy to help each other out if things come up (DIY stuff, or if i have to work until later etc) and I don't want to upset things, however I don't feel this is sustainable for me financially and believe that this should be covered comfortably by maintenance and child benefit?

Mods, if you feel this is better in a different category, please feel free to move it!

OP posts:
Slightyamusedandsilly · 28/08/2026 08:51

Loulou4022 · 27/08/2026 13:55

Isn’t the child maintenance supposed to pay for things like uniform?
It sounds a though his ex isn’t working so shouldn’t she be looking to increase her money via employment?

Autistic child.

ConflictedDad · 28/08/2026 08:46

OhamIreally · 28/08/2026 07:30

£36,000 is quite a low salary. Why don’t you up your skills and try to get a higher paying job?

£36k isn’t a low salary lol.

anyway, where on earth am I supposed to find the money to get further training when this post is about me not having enough money for the extras?

what a weird comment.

OP posts:
ConflictedDad · 28/08/2026 08:44

Backpain2026 · 28/08/2026 06:30

If the mum gets PIP that means she is disabled or has a health condition which has a serious impact on her life.

That will make it much harder for her to work and to look after the children.

The conversation needs to not be about money and paying extras but actually can she cope, and maybe you should do more practical

Hi.

unfortunately it is about money, and as I do the vast majority of the other “practical” things, I cannot do more of them

OP posts:
ConflictedDad · 28/08/2026 08:43

Seajaye · 28/08/2026 05:58

What's your ex's total month income compared to your net income?
I think it's reasonable for you to pay what the CMS calculator states given she qualifies for UC, gets CB,and PIP on top and these are tax free sums. Is she working pRy time as well..Are you able to ask her what she gets per month in total, especially now the CB 2 child cap has been lifted?

. I don't think she should expect more than that CMS amount if her income and your net income are roughly the same . If your income is significantly more then I think paying for extras is a nice thing to do if you can.

Hi.

her household income (benefits) is significantly higher than my income. Though there are 2 adults there.

I doubt she’s able to work part time.

OP posts:
Parcelpass · 28/08/2026 08:39

OhamIreally · 28/08/2026 07:30

£36,000 is quite a low salary. Why don’t you up your skills and try to get a higher paying job?

Oh I love this suggestion on mumsnet like everyone is capable of the same intelligence.

Lizziewest88 · 28/08/2026 07:50

I would just use the calculator to work out how much you should pay. I have my children 95% of the time. We worked maintenance out using the calculator. He does not contribute to any other additional costs. Makes it easier I guess, as I know where I stand.

OhamIreally · 28/08/2026 07:30

£36,000 is quite a low salary. Why don’t you up your skills and try to get a higher paying job?

Backpain2026 · 28/08/2026 06:30

If the mum gets PIP that means she is disabled or has a health condition which has a serious impact on her life.

That will make it much harder for her to work and to look after the children.

The conversation needs to not be about money and paying extras but actually can she cope, and maybe you should do more practical

Seajaye · 28/08/2026 06:11

ConflictedDad · 27/08/2026 17:15

She's not single, lives with a partner

But otherwise, yeah, I worked it out at around £3.5k a month, which is substantially more than my take home pay (even before maintenance is taken out)

To be clear, my issue isn't how much they receive, it's if my contribution is already reasonable enough that I shouldn't also be paying for the extra's such as school uniform etc. I imagine this question gets asked every summer on here

If her total household income is significantly more than your net income, then just pay her the CMS calculator sum for the 55:45 split of caring responsibilities. That sum is based on the assumption that the parent with the majority of care will be providing shoes and clothing and scholl trips etc. her benefits are for her other expenditure

You can still treat the children to extras when they stay with you, so they won't be missing out

Seajaye · 28/08/2026 05:58

What's your ex's total month income compared to your net income?
I think it's reasonable for you to pay what the CMS calculator states given she qualifies for UC, gets CB,and PIP on top and these are tax free sums. Is she working pRy time as well..Are you able to ask her what she gets per month in total, especially now the CB 2 child cap has been lifted?

. I don't think she should expect more than that CMS amount if her income and your net income are roughly the same . If your income is significantly more then I think paying for extras is a nice thing to do if you can.

CinnamonBuns67 · 27/08/2026 19:08

I'd give her the choice of 2 Options 50/50 time with the children no CM with still paying 50/50 with extras or current child arrangements just CM no extras. Ultimately if you can't afford extras then you can't afford the extras.

Justmemyselfandi999 · 27/08/2026 18:59

I’d be interested to know the specifics of the situation, how much additional support 3 young adults with additional needs require? It’s not a walk in the park in my experience, and I’m needed to be around a great deal to attend meetings, provide lifts, pick up the pieces and prevent burnout. If you as Dad are genuinely doing nearly half of this then absolutely pose the question re maintenance. If you’re just covering evenings on your ‘days’ and mum is on call all day, then I’d not rock the boat. My long term prospects and pension are all significantly affected while I’m reliant on benefits to bridge the gap that my children’s father should be, while he’s off all over the country and abroad running his own business and renovating his home.

Beer3000 · 27/08/2026 18:54

If the maintenance is based on 45% time, then surely you should be responsible for 45% of extra costs? So a bit less, but not much less.

If i was you, I'd tell your ex that you are struggling, and offer to increase the maintence a bit every month, instead of contributing to the extra costs in big uncontrollable chunks. OR offer to take full responsibility for your share - e.g. you'll do shoes, sports kit and dental, and do the shopping around to keep the costs down yourself.

ConflictedDad · 27/08/2026 18:53

Midnightmoonface · 27/08/2026 18:42

Surely whether she works or not isn’t relevant to the 50/50 split of extras either, but you specifically included that she didn’t work several times without stating she was disabled and her partner needed to be her carer. It feels quite purposeful to mention one without the other.

I responded to people that asked. I did not say in the opening message that she does not work. Same for her partner being her carer.

I do not know those things for a fact and they’re not relevant to if extra’s should be paid

OP posts:
Midnightmoonface · 27/08/2026 18:42

ConflictedDad · 27/08/2026 18:02

Hi. Yes I was.

her PIP was intentionally not included, as that’s specifically for her, that’s how it’s designed.

its also not really relevant to a discussion around maintenance and extras.

its fair that your dubious I guess. There’s not really much I can offer to convince. It’s not exactly a “normal” situation

Surely whether she works or not isn’t relevant to the 50/50 split of extras either, but you specifically included that she didn’t work several times without stating she was disabled and her partner needed to be her carer. It feels quite purposeful to mention one without the other.

Parcelpass · 27/08/2026 18:40

Birdshitbridgegotme · 27/08/2026 18:13

I’m a single parent to 3 kids. 2 have additional needs. I get dla for one, My ex pays me £100 less then you pay your ex and I manage fine. If your ex is on uc and your kids get FSM then she should get some money off for some school trips like I do. I manage on the money I get from uc and maintenance with three kids so don’t see how your ex wouldn’t. You also have your kids a lot more mine does every other weekend and sometimes has them for a week once a year but not always. Talk to your ex. I can’t see how she wouldn’t be able to live with what you give her to be honest she will be getting the disabled child element from uc as well as carers allowance which is another £83 a week. Unless she has huge bills I don’t see how she can’t make that work. I’d gladly take the extra help of my ex having his kids more even without thy extra £100

There's a new rule come in for FSM. Anybody on UC is entitled to FSM for their kids now.

Blushingm · 27/08/2026 18:17

Sartre · 27/08/2026 13:42

£16 more a month… CMS calculations are also the bare minimum so you’re currently paying the absolute minimum possible towards your children.

They’re not as they’re also paying 50:50 on the extra costs. CMS would not require that

Birdshitbridgegotme · 27/08/2026 18:14

I’ll also add I’m also disabled. I manage to work but just a little not enough to really be classed as a proper job so I do get pip too.

Birdshitbridgegotme · 27/08/2026 18:13

I’m a single parent to 3 kids. 2 have additional needs. I get dla for one, My ex pays me £100 less then you pay your ex and I manage fine. If your ex is on uc and your kids get FSM then she should get some money off for some school trips like I do. I manage on the money I get from uc and maintenance with three kids so don’t see how your ex wouldn’t. You also have your kids a lot more mine does every other weekend and sometimes has them for a week once a year but not always. Talk to your ex. I can’t see how she wouldn’t be able to live with what you give her to be honest she will be getting the disabled child element from uc as well as carers allowance which is another £83 a week. Unless she has huge bills I don’t see how she can’t make that work. I’d gladly take the extra help of my ex having his kids more even without thy extra £100

ConflictedDad · 27/08/2026 18:03

Parcelpass · 27/08/2026 18:01

Sorry but this is very unusual. I have checked your figures on cms calculator and you are correct.

Is it that your ex is very unwell?

She’s long term disabled, she’s unlikely to ever be able to work due to the varying nature of her issues on a day to day basis.

but, that’s not relevant to the issue here I don’t believe

OP posts:
ConflictedDad · 27/08/2026 18:02

HouseBee · 27/08/2026 17:54

@ConflictedDad were you her ‘carer’ too when you were together?
As in you had to take a lot of the admin, appointments etc…. when you were together too?

Hi. Yes I was.

her PIP was intentionally not included, as that’s specifically for her, that’s how it’s designed.

its also not really relevant to a discussion around maintenance and extras.

its fair that your dubious I guess. There’s not really much I can offer to convince. It’s not exactly a “normal” situation

OP posts:
Parcelpass · 27/08/2026 18:01

ConflictedDad · 27/08/2026 17:54

I’m in the exceptionally fortunate position of being able to take flexi time. So I can move things around to fit things in (not that it makes it any less difficult)

Sorry but this is very unusual. I have checked your figures on cms calculator and you are correct.

Is it that your ex is very unwell?

HouseBee · 27/08/2026 17:54

@ConflictedDad were you her ‘carer’ too when you were together?
As in you had to take a lot of the admin, appointments etc…. when you were together too?

ConflictedDad · 27/08/2026 17:54

Parcelpass · 27/08/2026 17:49

How can you manage to do appointments? Do overnight stays over half the week? Whilst working full time as well?

I’m in the exceptionally fortunate position of being able to take flexi time. So I can move things around to fit things in (not that it makes it any less difficult)

OP posts:
Parcelpass · 27/08/2026 17:53

HouseBee · 27/08/2026 17:51

Like a lot of single parents Tbf.

Thos doesn’t change the CMS calculations

It just doesnt seem quite right when I have read over OPs post. I mean the kids live with mum so I wouldn't expect OP to do appointments giving what he's "alleging". (Single parent too but even Im wondering!).