Nursery is the bill Tom and Aisha talk about: £1,120 a month. The holiday, two cars’ insurance, Christmas, parties, uniform: £5,900 a year that nobody talks about, because each arrives once. That is £492 a month — nearly half a nursery.
Tom and Aisha, two children. The households in these Shorts are illustrations built from typical UK figures, not real people, and every number below is worked on the household’s sheet.
What happened
In Tom and Aisha’s house, the bill everyone talks about is nursery. With two children, it costs £1,120 a month, and it has the status of the big one, the cost that shapes every other decision. After the mortgage, it is the figure they would name without hesitating if anyone asked about their largest outgoings. Yet their second-biggest bill had never once come up in conversation, because no single month ever presented it to them.
That is because it was not one bill but five, each arriving on its own and each treated as a one-off. The family holiday, at £2,400, lands once a year, so when it comes it feels like an unusual month rather than a regular cost. Insurance on the two cars is £1,300, also paid in one go. Christmas runs to £1,100. Children’s parties and the presents that go with them take another £500, and school uniform and trips add £600. Every one of them was filed in the same mental drawer marked just this month, and then forgotten until the next one appeared.
Put on a single line, the five come to £5,900 a year. Spread evenly, that is £492 every month, which makes it nearly half the size of the nursery bill they worried about so openly. Nobody had said the number aloud simply because nothing ever arrived showing the total. And there was a second, quieter difference between the two costs. Nursery will end within a year, as the children grow. The once-a-year bills will not end at all; they simply keep coming, in different months, for as long as the family exists.
So the collection of lumps was turned into what it really was, a monthly bill. Tom and Aisha set up an envelope for annual costs and began putting £492 into it every month, the same amount each time, regardless of which of the five was due next. Once the money was building steadily in the background, the individual pieces stopped behaving like surprises. When they did turn up, the cash was already there waiting for them.
The difference showed this July. The holiday, which in earlier years would have gone on a card and been worried about afterwards, was paid by a straightforward transfer from money already set aside. The method they used is short enough to repeat anywhere: list every bill that comes once a year on one line, divide the total across the months, and accept that the result is a monthly bill like any other. Then give it its own envelope, before the next lump lands.
The working
Every figure the Short says, and where it comes from on the household’s sheet.
| The Short says | Figures | Derivation |
|---|---|---|
| seven thousand two hundred | takehome = 7,200 | takehome = tom + aisha |
| eleven hundred and twenty a month | nursery = 1,120 | on the sheet |
| two thousand four hundred | holiday = 2,400 | on the sheet |
| thirteen hundred / eleven hundred | car_insurance_two = 1,300; christmas = 1,100 | on the sheet |
| five hundred / six hundred | kids_parties = 500; school_uniform_trips = 600 | on the sheet |
| five thousand nine hundred / four hundred and ninety-two | sum of the five; round(annual_lumps / 12) | on the sheet |
| nearly half a nursery | lumps_monthly / nursery = 0.44 | on the sheet |
The turn
Each lump is “just this month”; added up they are £492 a month, nearly half the bill they think is the big one, and no month ever sends the total.
The Short
Monday
- Every once-a-year bill on one line, divided by twelve, is a monthly bill.
- Give it an envelope.
In Zeroed
Tom and Aisha’s Annual bills envelope takes four hundred and ninety-two a month. The row shows this month’s share is in.
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