Kakeibo MethodThe household ledger
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The household ledger

Savings target · AUD

Save A$10,000 in 3 months

Saving A$10,000 in three months means A$3,333 a month, A$769 a week, or A$109.51 a day. Here is where that comes from in a kakeibo ledger.

A$10,000 in 3 monthsAUD · three months
Every monthA$3,333for 3 months, or A$3,350 as a round standing transfer
  • Every fortnightA$1,538
  • Every weekA$769
  • Every dayA$109.51
  • Entries to make91 days
What it costs a dayOver the line
A$109.51

Money stops coming out of discretionary spending alone at A$50 a day, where the rule is drawn. This target sits above it.

This is beyond what habit changes deliver. Treat it as a decision about fixed costs or income, with the ledger tracking whether the decision held.

Short horizons reward preparation over willpower. Move the money the day it arrives and the remaining eleven weeks are mostly bookkeeping.

Against an income

What this asks of your income

The ladder simply runs the division backwards: A$3,333 a month is twenty percent of A$16,667, ten percent of A$33,333, and thirty percent of A$11,111. Find your own income on it and you know what you are asking of yourself.

  1. 10%A$33,333 a month take homeA$30,000 left to live on
  2. 15%A$22,222 a month take homeA$18,889 left to live on
  3. 20%A$16,667 a month take homeA$13,333 left to live on
  4. 25%A$13,333 a month take homeA$10,000 left to live on
  5. 30%A$11,111 a month take homeA$7,778 left to live on

The dark slice is A$3,333, the same money on every rung. What changes behind it is the pay packet it has to come out of, which is the whole reason a savings rate is a better question than a savings amount. The marked rung is twenty percent.

Where the money comes from

Which envelope pays for it

Kakeibo sorts spending into four envelopes rather than dozens of line items, and that is what makes a question like this answerable.

  • Survivalwhat keeps the lights on: rent or mortgage, groceries, power, rego and fuel, insurance
  • Optionaltakeaway, subscriptions and the shopping you would not miss
  • Culturea course, a gallery membership, books
  • Extrathe irregular hit: car repairs, a wedding gift, the vet

A$3,333 a month, carved

  • Optional45%A$1,500
  • Culture15%A$500
  • Extra15%A$500
  • Survival25%A$833

Total moved to savingsA$3,333 a month

Splitting it across Optional, Culture, Extra and Survival is one way to arrange it, and the Survival line is the honest part: at A$3,333 a month, no rearrangement of takeaway, subscriptions and the shopping you would not miss covers the whole figure. Survival means fixed costs, so that share is a housing, transport or insurance decision rather than a willpower one.

Targets this large tend to outlast the mood that created them, which is why the written reason matters more here than the spreadsheet.

The method, against this number

The four questions, against this target

The method is four questions asked once a month, in that order. Here they are with this page's numbers in them. The long version of each, with the reflection prompts, is in the four questions guide.

  1. 01How much money do you have?Everything that lands in the month, before anything is committed. The plan below only works from a real figure rather than a remembered one.
  2. 02How much would you like to save?A$3,333 a month, or A$3,350 if you would rather set a round standing transfer and finish early.
  3. 03How much are you spending?Recorded by hand, in four envelopes, as it happens. This is the part that makes the A$10,000 possible, and the part every method skips at its peril.
  4. 04How can you improve?Answered once a month for 3 months, in writing, against the running total rather than against a feeling.
If the plan changes
A different targetSave A$15,000 in 3 monthsA$5,000 a monthA$1,667 a month more than this pageA different horizonSave A$10,000 in 6 monthsA$1,667 a monthsix months instead of three months, and A$1,667 a month easier
The same target on every other horizonA month, then a day
Every other target on this horizonA month, then a day

A$109.51 a day is above the A$50 a day line, so part of the money has to come out of fixed costs rather than out of Optional. Run the same A$10,000 over nine months instead and it drops back under.

The same target in another currency

$10,000 in 3 months$3,333 a month, written for the United States£10,000 in 3 months£3,333 a month, written for the UK

Or work from your own figures in the save an amount by a date calculator, and start from the method itself in what is kakeibo.

Common questions

How much do I need to save each month to reach A$10,000 in 3 months?
A$3,333 a month. Set it to A$3,350 and you arrive early with a small cushion, which is usually worth more than the exact figure.
What is that per week and per day?
A$769 a week, A$1,538 a fortnight, and A$109.51 a day across roughly 91 days.
Which kakeibo category should the money come from?
Start with Optional. On this target it carries about 45 percent of the monthly figure, which is A$1,500. The ledger tells you the specific lines within a fortnight.
What happens if I miss a month?
The shortfall spreads across what is left. Missing one month here adds about A$1,667 to each remaining month, so it is recoverable, and the monthly reflection is where you decide whether to absorb it or move the date.

A$3,333 a month is arithmetic. Holding it is the ledger.

Kakeibo works because you write the spending down as it happens and read it back once a month. The app does the totals so the writing down is the only work left.

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The Kakeibo app showing a monthly budget with income, expenses and a savings goal in progress