Three years post-divorce, 50/50 custody, and child support split. The hardest thing wasn't the support number — it was the constant low-grade fights about reimbursable kid expenses. Copays, school fees, soccer cleats, the strep test at urgent care. Six months in, we owed each other money and neither of us could remember who paid for what.
What finally worked for us:
Log it the same day, not at the end of the month. We use a shared note. Date, amount, kid, what it was for, photo of the receipt. Five seconds in the parking lot beats an hour of arguing in March.
Settle monthly, not "whenever." First Sunday of every month, one of us Venmos the other the net. No running tabs. No "I'll get the next one."
Define the categories up front. Our decree said "extracurriculars and uncovered medical" — but is a $40 birthday party gift a kid expense? A new winter coat? We made a one-page list of yes/no/discuss. Cut probably 80% of the friction.
Photograph receipts at the point of sale. Three months later "I think it was around $60" doesn't fly when one of you is anxious about money.
The thing nobody told me: the support order is the easy part. The reimbursement layer on top — that's where the resentment lives.
What's everyone else doing for the day-to-day expense split? Especially curious if anyone has actually gotten a system that works long-term, or if it just degrades back to texting receipts at midnight.