An introductory guide updated for the new systems, ahead of the launch of Junior NISA, is now available. It explains the basics of NISA and iDeCo and how to combine them in a Q&A format.
Gakken, a group company of Gakken Holdings, released 『The Series That Tells You Everything You Want to Know! The Absolute Basics of the New NISA & iDeCo [Updated for the New Systems]』 on 8 October 2026. The author is Sakai Fujiko (酒井富士子). The list price is ¥1,760, and the book is in A5 format with 176 pages. Updated for the new systems, the book explains the structure of NISA and iDeCo, the process of opening an account and the basics of asset building in an easy-to-understand manner for beginners.
Based on the launch of Junior NISA in 2027 and the December 2026 revisions to iDeCo, the book uses a Q&A format to introduce ways to combine asset-building approaches according to age and life stage. It covers how to consider strategies suited to individual needs while looking ahead to future funding requirements, including education, retirement and housing expenses.
The book is positioned as a new edition in the popular series, which has sold more than 100,000 copies cumulatively. It incorporates changes under the new systems into the previous explanations. Readers can learn how to use NISA and iDeCo selectively through specific cases, including building funds for education and retirement.