So cost of living is going up etc and we've taken a look at our finances. We are going to have to cut back a bit. Is it ever ok for the maintenance payments to the ex to reduce? They are well above the CMS recommended amount (DH's choice) but we all know the CMS amount is not always half the amount of raising a child. It also shouldn't matter what mum earns/pays but she's living rent free in an inheritated property and works what I would call "extremely part-time".