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Two households, one child, and a slow accumulation of school shoes, dentist bills and swimming lessons that nobody can reconstruct three months later. This keeps the receipts in one dated list, splits them by whatever percentage you have agreed, and counts the overnights alongside them. Everything stays on this device: no account, no login, nothing sent anywhere — and nothing visible to anyone else.
Bars are what each household paid out that month. The line is the running balance — above the middle means B owes A, below means A owes B.
The chart appears once you have expenses in two or more months.
No expenses yet — add the first one above.
Tap a night to cycle it: unset → Household A → Household B → unset. A night belongs to whoever the child slept with.
A percentage drawn from four logged nights is not a parenting-time figure, it is a rounding error with a decimal point. The floor is there so the number only appears once it means something.
Ask two separated parents what has been spent on their child in the last six months and you will get two honest, sincere, completely different answers. Not because anyone is lying — because each of them remembers their own spending vividly and the other's vaguely, which is simply how memory works. The £48 you spent on a coat is a fact; the £48 they spent on a coat is a claim.
Writing costs down as they happen removes the thing that makes those conversations so bad, which is that they are conducted from memory under pressure. A dated line item with a note attached is boring, and boring is the goal.
Fifty-fifty is the default here because it is the most common starting point, but plenty of arrangements are not fifty-fifty, and plenty are fifty-fifty for most things and something else for a specific expense — a school trip one household proposed, an activity only one of you wanted. That is why the split can be set per expense as well as overall: the default fills in automatically, and you can override it on the line where it matters without renegotiating everything else.
The running balance is the natural consequence of that arithmetic, not a demand. It shows what the numbers you have entered add up to, on the assumptions you set. If the other household is keeping their own list, the two will not match at first — comparing the itemised pages is usually far quicker than arguing about the totals.
The overnight tab exists because the answer to "how many nights did they actually have him last term" is another thing nobody can reconstruct afterwards, and because it is a question that comes up in more contexts than money: schools, benefits, holiday planning, and yes, sometimes court. Tapping a square once a night takes seconds and produces a record that does not depend on anyone's recall.
The percentage stays hidden until you have logged a meaningful stretch of nights. That is intentional. A figure like "71% of nights" derived from a fortnight will be quoted back at you as though it described the year, and it does not.
One practical note. A shared app that both parents can see and edit sounds efficient, and for some pairs it is — but it also creates a live surface where a disagreement can be conducted at eleven at night. This one is deliberately not that. It is yours, it is offline, and the only thing that ever leaves it is a document you decide to send. For some situations that is a limitation. For a lot of them it is the entire point.
No. It is your own record, printed by you, the same as a notebook or a spreadsheet would be. Whether any record is accepted, and in what form, is entirely a matter for your court and your lawyer — this page cannot know and does not claim otherwise. What it gives you is a legible, dated, itemised statement instead of a shoebox of receipts, which is a better starting point for that conversation than nothing.
No, deliberately. Child support formulas differ by country, state and case, they change, and getting one wrong in either direction causes real harm. This tool only does arithmetic you have told it to do: it splits the expenses you enter by the percentage you set, and counts the nights you mark. Nothing more.
No. Everything is stored in this browser on this device only. There is no account, no sync and no shared workspace — which is the point, because separation records are among the most sensitive things anyone types into a website. If you want the other parent to have a copy, print or download the statement and send that yourself.