Japan's century-old budgeting method: four questions a month

Before you open the shopping basket, take a pen and a notebook and answer four questions: how much money will you have this month? How much would you like to save? How much will you spend? How can you do better?

That is the skeleton of the Japanese kakeibo. An article published by AARP, the US association for older people, on 30 September 2021 says this household ledger was devised more than 100 years ago and is still popular in Japan. Fumiko Chiba's guide of the same name was published by Penguin in the UK and by Tarcher, part of Penguin Random House, in the US, bringing the method to English-language readers.

A ledger that came out of a women's magazine

According to Wikipedia, the kakeibo was first published in a women's magazine in 1904 by the Japanese journalist Hani Motoko. This claim currently appears only on Wikipedia and we could not find a second source to confirm it, so treat it as background.

Four questions, asked once a month

Wikipedia and AARP both summarise the core of the kakeibo as four questions. AARP suggests asking them at the beginning of each month, roughly in this order:

1. How much money will you have this month.
2. How much you would like to save.
3. How much you will spend.
4. How you can improve.

These four questions are the two sources' summary, not wording quoted from Fumiko Chiba's book; we could not verify the book's exact phrasing.

Fumiko Chiba's version: set a goal first, then record weekly

Penguin's UK page describes the book as a budgeting guide based on the Japanese kakeibo: readers set a savings goal each month, record their spending week by week, and review at the end of the month. In other words, the goal comes first, the recording in the middle and the review last, completing one cycle a month.

Penguin Random House's US page calls the book "a wonderful tool" for anyone who wants to make keeping track of their spending more streamlined.

Publication details for the two editions are as follows (prices are the list prices on the publishers' pages as of November 2026):

• UK edition: published by Penguin, subtitled The Japanese Art of Budgeting & Saving Money, published on 23 November 2017, ISBN 9781405936132, 208 pages, paperback £14.99.
• US edition: published by Tarcher (Penguin Random House), subtitled The Japanese Art of Saving Money, released on 6 November 2018, ISBN 9780525538035, 208 pages, paperback US$16.00.

Putting every payment into one of four boxes

AARP's article sorts spending into four categories, and readers can also create their own:

• Needs
• Wants
• Culture
• Unexpected

Once spending is sorted, the monthly review shows which box the money went into.

Why write by hand: what you write down, you remember

AARP recommends recording spending on paper with a pen, on the grounds that the act of writing helps people notice and remember what they spend. One person interviewed in the article tracked his spending on paper for six months and only then found he had been paying twice for the same subscription for years.

Wikipedia also notes that a kakeibo can be bought ready-made or made at home; daily spending is totted up by week and by month, and the writer notes down their thoughts about each purchase to raise their awareness of spending.

Start with the first page of this month

November has just begun, which is when AARP suggests asking the questions. The routine can be simple:

1. On the first page, write down your answers to the four questions, especially the amount you want to save.
2. After each purchase, record the amount under needs, wants, culture or unexpected, with a line on what you were thinking.
3. Add up the totals once a week and see which box is growing fastest.
4. At the end of the month, review, answer the fourth question, then turn to the first page of the next month.

Before you next press the checkout button, leaf through the notebook first.

Prices and details correct as of November 2026

Compiled by the F50 Editorial Team from public sources, for general reference only and not professional advice. Details are correct as of the publication date and may change.