Split child expenses with your co-parent
Load your list of kid costs, and Kidtally splits every shared expense by your agreed ratio, counts reimbursements and insurance paybacks, and tells you who owes whom — exact to the cent, in your browser; nothing is uploaded and neither of you needs an account.
How it works
- List the kid costs — who paid, amount and who shares it — in the template, or try the sample.
- Enter your agreed ratio, or use 50/50.
- Share the statement: each parent's share and the amount still owed.
Why Kidtally
For separated and divorced parents who share the kids' extra costs — daycare, the dentist, school outings, soccer, camp — at 50/50 or an agreed ratio like 60/40. Kidtally takes the list of who paid what, applies your ratio, counts reimbursements and insurance paybacks, and gives the one amount still owed — without either of you joining an app.
One expense list
One row per cost: which parent paid, how much, an optional category and who shares it. Excel, Google Sheets export or CSV.
Your agreed ratio
Enter it once (Maria:60; Sam:40) and every shared row is split by it. Any row can be 50/50 or a custom split instead.
Split to the cent
Each share is worked out in whole cents, so both balances always net to exactly zero. Totals per category too.
Reimbursements counted
Payments between you and insurance or school paybacks are taken into account, so you see what's still owed.
Data flags
A missing ratio, names that don't match, duplicate entries and rows that look like payments, not costs.
Ratio what-ifs
See the balance at 50/50 and with the ratio moved 5 or 10 points — useful when incomes change.
Simple pricing
Free for every balance, the settle-up and every flag. Pro for every expense, every what-if, a statement for each person and the exports.
Free
- Any number of expenses
- Both balances and the amount owed
- 3 what-ifs and 12 expenses shown, print with a footer
- No signup, nothing uploaded
7-day pass
- 7 days of Pro, no subscription
- Every expense on screen and in print
- Every ratio what-if
- Statements for each parent, Excel workbook and CSVs
Pro Yearly Best value
- Everything in Pro
- Every month this year
- Costs less than 6 months of monthly
One price per buyer — the rest of the group doesn't need anything. Prices in USD. Secure checkout by Polar, our merchant of record (its checkout shows our seller name, Launchtools). Sales tax is added at checkout in the US, Canada and India; elsewhere VAT/GST is included. Already bought? Enter your license key.
Tools & guides
- Co-parenting expense splitter
- Split child expenses by your income ratio
- An OurFamilyWizard alternative for the expense maths
- How to Split Child Expenses Between Co-Parents
- Proportional Share of Extraordinary Child Expenses, Explained
- A co-parent expense template that does the math
- Settle shared kid costs without both joining an app
FAQ
Is my data uploaded?
No. Your files are read by JavaScript in your browser tab and never sent to us or anyone else. Expenses aren't stored, so closing the tab clears them. The currency, ratio and split can be saved in this browser if you ask; the statement name never is.
Where does the ratio come from?
Usually your parenting plan, separation agreement or support order — often each parent's share of combined income (for example $60,000 and $40,000 gives 60/40). Kidtally doesn't work out what you're required to pay; it applies the ratio you enter.
How do I write the split?
all (or blank) splits the row by your agreed ratio. Maria; Sam makes that row 50/50, and Maria:3; Sam:1 is a custom split. A single name other than the payer records a payment between you, like Sam paying Maria back.
How are reimbursements and insurance handled?
When one parent pays the other, enter a row paid by them with only the other parent in the split — it counts as a payment, not a shared cost. When insurance or a school pays something back, enter it as a negative amount on the row of the parent who got the money.
How are the cents handled?
Each share is worked out by rounding down and giving the leftover cents to the largest remainders, so shares always add up exactly to the expense and both balances net to zero.
How is this different from OurFamilyWizard?
OurFamilyWizard is a full co-parenting platform with messaging, calendars and an expense log, and its plans are priced per parent. Kidtally only does the expense maths from a list you already have, one parent can run it, and nothing is uploaded. If a court requires a specific app, use that.
What's free?
Both balances, the amount owed, every flag, 3 what-ifs and 12 expenses on screen and in print (with a footer). Pro shows every expense and every what-if and adds a statement for each parent, the Excel workbook and CSV exports.
Is this legal or financial advice?
No. Kidtally does the arithmetic on the expenses and ratio you enter. Your order or agreement decides which expenses are shared.