Kakeibo MethodThe household ledger
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The household ledger

Savings target · AUD

Save A$15,000 in 9 months

Saving A$15,000 in nine months means A$1,667 a month, A$385 a week, or A$54.76 a day. Here is where that comes from in a kakeibo ledger.

Every monthA$1,667for 9 months, or A$1,675 as a round standing transfer
Every fortnightA$769
Every weekA$385
Every dayA$54.76
Entries to make274 days

A cost this size per day is not found in the small lines. It is found by changing one large recurring commitment, and the sooner that is admitted the sooner the plan becomes real.

Six to nine months is long enough for the novelty to wear off around week five. The monthly reflection is what carries it past that, which is why kakeibo builds the reflection in.

What this asks of your income

The ladder simply runs the division backwards: A$1,667 a month is twenty percent of A$8,333, ten percent of A$16,667, and thirty percent of A$5,556. Find your own income on it and you know what you are asking of yourself.

If you saveTake home pay that impliesLeft to live on
10 percent of your payA$16,667 a monthA$15,000 a month
15 percent of your payA$11,111 a monthA$9,444 a month
20 percent of your payA$8,333 a monthA$6,667 a month
25 percent of your payA$6,667 a monthA$5,000 a month
30 percent of your payA$5,556 a monthA$3,889 a month

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. Survival is what keeps the lights on (rent or mortgage, groceries, power, rego and fuel, insurance). Optional is takeaway, subscriptions and the shopping you would not miss. Culture is a course, a gallery membership, books. Extra is the irregular hit: car repairs, a wedding gift, the vet.

Splitting it across Optional, Culture, Extra and Survival is one way to arrange it, and the Survival line is the honest part: at A$1,667 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.

EnvelopeShare of the monthly figureAmount
Optional45 percentA$750 a month
Culture15 percentA$250 a month
Extra15 percentA$250 a month
Survival25 percentA$417 a month
Total moved to savingsA$1,667 a month

A number this size will attract competing claims: a car, a repair, a holiday. Deciding now which of those the fund is not for saves an argument later.

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$1,667 a month, or A$1,675 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$15,000 possible, and the part every method skips at its peril.
  4. 04How can you improve?Answered once a month for 9 months, in writing, against the running total rather than against a feeling.
If the plan changes

The same target on every other horizon:

The same target in another currency:

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$15,000 in 9 months?
A$1,667 a month. Set it to A$1,675 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$385 a week, A$769 a fortnight, and A$54.76 a day across roughly 274 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$750. 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$208 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$1,667 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