Kakeibo MethodThe household ledger
Get the Kakeibo app free

The household ledger

Savings target · AUD

Save A$30,000 in 24 months

That is A$1,250 every month for 24 months, which works out at A$41.07 a day. The number is the easy part; which envelope pays for it is the question this page answers.

Every monthA$1,250for 24 months, or A$1,250 as a round standing transfer
Every fortnightA$577
Every weekA$288
Every dayA$41.07
Entries to make731 days

At this size the daily figure is doing real work against your discretionary spending, so the plan should say what it replaces rather than assuming the money is simply there.

Over this many months the target will stop feeling urgent somewhere in the middle. Writing down what the money is for, once, gives you something to read when it does.

What this asks of your income

The ladder simply runs the division backwards: A$1,250 a month is twenty percent of A$6,250, ten percent of A$12,500, and thirty percent of A$4,167. 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$12,500 a monthA$11,250 a month
15 percent of your payA$8,333 a monthA$7,083 a month
20 percent of your payA$6,250 a monthA$5,000 a month
25 percent of your payA$5,000 a monthA$3,750 a month
30 percent of your payA$4,167 a monthA$2,917 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 and Extra keeps the target inside discretionary spending, which is where kakeibo does its best work. Optional is takeaway, subscriptions and the shopping you would not miss, and the ledger will tell you which line it actually is within a couple of weeks.

EnvelopeShare of the monthly figureAmount
Optional55 percentA$688 a month
Culture20 percentA$250 a month
Extra25 percentA$313 a month
Total moved to savingsA$1,250 a month

Targets this large are almost always a deposit, a sabbatical or a debt being cleared. All three reward writing down what the money is for, because the reason is what survives month nine.

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$1,250 a month, or A$1,250 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$30,000 possible, and the part every method skips at its peril.
  4. 04How can you improve?Answered once a month for 24 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$30,000 in 24 months?
A$1,250 a month. Set it to A$1,250 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$288 a week, A$577 a fortnight, and A$41.07 a day across roughly 731 days.
Which kakeibo category should the money come from?
Start with Optional. On this target it carries about 55 percent of the monthly figure, which is A$688. 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$54.35 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$1,250 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.

Get the Kakeibo app freeiPhone and iPad · Free tier, no account needed
The Kakeibo app showing a monthly budget with income, expenses and a savings goal in progress