A family budget: how to run it together

Three schemes that actually work

• One pot. All the income into one pile, all the spending out of it. The simplest to keep books for and the hardest psychologically: every personal purchase becomes visible to the other person.
• Shared money for shared things. Both of you contribute to housing, groceries and the children; the rest stays personal and is not discussed. The most common working arrangement.
• In proportion to income. The same thing, but the contributions are shares of what each of you earns rather than halves: whoever earns 60% of the household income puts in 60% of the shared costs. It saves the arrangement when incomes differ several times over.

Where to start, so that it does not turn into a row

1. 1Add up the shared, unavoidable costs of the last three months — housing, utilities, groceries, transport, children. This is not a budget, it is a fact; there is no point arguing with a fact.
2. 2Agree on the amount each of you puts into the shared pot, and on the sum above which a purchase stops being a private matter. That is often the most important figure in the whole conversation.
3. 3Set up separate categories for shared and for personal. Shared spending should be visible to both of you; personal spending to nobody but its owner.
4. 4Revisit the agreement after a month. The first version is almost always too optimistic about groceries and too pessimistic about cafés.

When only one of you keeps the books

This is a normal situation, and demanding that the other person “write things down too” is the fastest way to ruin both the books and the evening. The workable arrangement is usually asymmetric: one of you keeps the records, the other agrees to stay inside the limit on shared categories and does not object to a review once a month.

Technically that is solved either by one device on which the shared books are kept, or by sync between two — in FinLad sync is part of a paid plan; on the free plan the records live on a single device and are not sent anywhere.

Limits work better than reports

A report tells you what you have already spent; a limit speaks up while the decision can still be changed. So a monthly limit on the two or three categories that genuinely swing — cafés, groceries, clothes — gives you more than detailed analytics across all twenty.

In FinLad a limit reminds you of itself at 80% and at 100% with a notification on your phone, rather than a line in a report at the end of the month. What is left over from a frugal month can be carried into the next one — that is what makes a limit an agreement rather than a ban.

In proportion to income: how to work it out

People dismiss the “share of earnings” scheme as complicated, though it takes a minute to calculate. Say one earns 45,000 and the other 25,000, so 70,000 together. The shares are 64% and 36%. Shared essential costs for the month are 30,000. So the contributions are 19,200 and 10,800.

The point is not fairness as such, but that after contributing, both are left with a comparable share of their own income — 25,800 and 14,200, which is 57% each. Split evenly, whoever earns less would be left with 10,000 out of 25,000, and any personal purchase would turn into a negotiation.

Recalculate every six months, or when someone’s income has changed noticeably. More often than that and it becomes a monthly conversation about who brought in how much; less often and the scheme stops matching reality. If one income is irregular, use a three-month average rather than the last month.

A shared goal holds better than a shared report

Last month’s report is a bill already issued, and it can only be discussed in the past tense. A goal works differently: it turns going without a purchase into a contribution to something you both want, rather than a concession to the other person. It is the only reason I know of for which people cut spending voluntarily and without a row.

Start with a buffer — three to six months of essential costs. It is dull, but it is what removes most financial conflict: with a reserve in place, an unexpected breakdown stops being an occasion to establish who overspent this month.

Make the second goal an enjoyable one and not too distant: a holiday, a piece of equipment, a course. A goal ten years out motivates nobody; visible progress over six months motivates both. In FinLad a goal sits next to the balance, so contributions to it do not get lost among the expenses.

When the agreement breaks

• A limit was exceeded — that is information, not a violation. The first question is not who is to blame but whether the limit was realistic. If a category overruns three months running, it is the figure that is wrong, not the person.
• The scheme is the wrong one if you talk about money more often than once a month and it is unpleasant every time. “Shared costs from shared money” with a broad definition of shared very quickly becomes a report on every purchase — and then the definition needs narrowing, not the discipline tightening.
• One large unannounced purchase damages trust more than a year of small overruns. So the figure above which a purchase gets discussed in advance matters more than all the limits put together — and it is best agreed when you are not planning to buy anything.
• If one of you keeps the books and it has started to grate on both, try handing the review to the other for a month. Not the entries — the review: fifteen minutes at the end of the month. That is usually enough for the figures to stop being “his spreadsheet”.