DH and I have 2 kids each. Mine are 7 and 5 and his are 12 and 9. Mine are with us full time and his 50% of the time. He shares his kids exactly 50% of the time with his ex and pays 50% of all costs, including clothes, food, actitivies, holidays etc. He and his ex earn the same and he has never paid maintenance to her in the 5 years since they split on the basis that he already pays half the costs. Out of the blue, his ex has now said that she wants maintenance payments on top of him having them 50% of the time. The CMA calculator seems to say that even were there is shared care, maintenance is still payable, in this case 260 a month. Seems massively unfair, especially as DH and his kids have just moved in with us which we think has triggered his ex asking for this as she must think we have more money, which isn't the case at all. DH is v upset about it and wants to say no on the basis that it's completely unfair but it looks like if it goes to court then he would have to pay. Does anyone have any experience of whether maintenance is paybale in circumstances where there is truly shared care?