Split shared costs fairly in seconds. Track childcare, school, medical, activities and more — then download or share your breakdown.
Updated June 2026 · Free tool from Larkling 🐦 · Works in £, € and $
Parent A: 50% · Parent B: 50%
| Expense | Amount (£) | Category | Paid by |
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Found this helpful? Pass it on to other co-parents who need a fair way to split expenses — free tools get shared more than anything else.
The most common split is 50/50, but many co-parents use proportional splits based on income. This calculator lets you set any split percentage and instantly see what each parent owes — in your own currency.
Typical shared expenses include childcare and babysitting, school fees and supplies, medical and dental costs, extracurricular activities, clothing, food, and other agreed costs like summer camp or tutoring.
Child support (or child maintenance in the UK) covers basic living costs in the main carer's home. Shared expenses — sometimes called extraordinary expenses or add-ons — cover specific costs above basic support, like medical bills, school fees and activities.
Yes — bookmark the page and return as expenses accumulate. For full tracking with receipts, payment requests and court-admissible records, sign up free on larklingapp.com.
Yes. Choose £ GBP, € EUR, $ USD, $ CAD or $ AUD from the currency menu and every total updates instantly. Your choice is remembered next time you visit.
Track expenses, share calendars, send secure messages — all free on Larkling. Built for every kind of family.
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