In short
- Decide what you share and what each home covers.
- Pick a split, 50/50 or by income, and write it down.
- Log each expense with who paid and the receipt.
- Settle once a month with one payment.
Which kids' expenses to share
Day-to-day costs in each home, like groceries and outings, are usually covered by whoever has the kids that week. What co-parents split are the bigger costs:
- School tuition, supplies and uniforms.
- Doctor, dentist and prescriptions.
- Lessons, sports and activities.
If an agreement or a court set child support, that's separate: this is what you split on top of it.
50/50 or by income
If you earn about the same, 50/50 is simplest. If one parent earns more, split by income: at $3,000 and $2,000 a month, that's 60% and 40%. Write it down and revisit it when incomes change. More in how to split bills proportionally.
An example month at 60/40
Emma and Jake agreed on 60% and 40%. In October, Emma paid tuition ($400) and a doctor visit ($60); Jake paid for the uniform ($90) and soccer ($50). Total: $600.
| Parent | Paid | Share | Balance |
|---|---|---|---|
| Emma (60%) | $460 | $360 | +$100 |
| Jake (40%) | $140 | $240 | −$100 |
Jake sends Emma $100 and the month is settled.
Do it in Divall
With Family and roommates, you track the kids' month without the table:
- Create a Family account and add your co-parent by name, even without the app, or invite them with a link.
- Choose the “By percentages” agreement or equal parts.
- Log each expense with who paid; receipts can be read with AI from a photo.
- When you close the month, Divall shows who pays whom; the payment is marked as paid and confirmed by whoever receives it. Divall keeps the record; each of you moves the money.
Family and roommates is part of Divall Pro ($4.99 a month, with a 7-day free trial) and keeps up to 5 years of history. Divall is free to start: with a Family account, the kids' month is clear for both of you.
Frequently asked questions
With joint custody, do we split everything 50/50?
Not always. If incomes are very different, many co-parents split by income. What counts is what you agree on in writing.
What if my co-parent won't pay for something?
Agree ahead of time which big expenses need a heads-up, and keep every receipt. If child support is court-ordered and you can't agree, talk to a family law attorney in your state.