Global Guide
A Japanese-language world reference covering 203 countries and regions.

A tax handbook app for Japanese tax and accounting professionals that combines a reference list of major taxes with a monthly tax calendar, updated for the FY2026 (Reiwa 8) tax reforms.
| Category | Japanese Reference & AI |
|---|---|
| Languages | Japanese |
| Platforms | iPad/iPhone |
| Developer | Enfour, Inc. |
Tax AI Handbook 2027 (税務AI手帳2027年版) is a Japanese-language diary and reference app for tax and accounting professionals. It combines a summary of the main Japanese taxes with a tax calendar, reflecting legislation up to the fiscal 2026 (Reiwa 8) tax reform.
The tax summary covers national tax procedures, corporate tax, income tax, inheritance and gift tax, registration and license tax, stamp duty, consumption tax, and local taxes, each with the underlying legal provisions. More than 500 links lead to trusted sources such as the National Tax Agency’s Tax Answer pages, and reference tables include useful-life tables, social insurance rates, and withholding tax tables.
Monthly tax deadlines can be added to the iPhone calendar automatically, including holiday adjustments, and the app maps 538 tax offices nationwide. A subscription AI tax consultation searches current laws, circulars, and Q&A cases and answers with citations. Notes and schedules sync between iPhone and iPad through iCloud.
| Category | Japanese Reference & AI |
|---|---|
| Languages | Japanese |
| Platforms | iPad/iPhone |
| Version | 2.0 |
| Updated | 2026-10-20 |
| Rating | 3.7 / 5 (6) |
| Developer | Enfour, Inc. |
A Japanese-language world reference covering 203 countries and regions.
A Japanese-language guide to the economic indicators printed in the Nikkei newspaper.
A Japanese reference on supplements organized by condition and symptom, based on the Japanese edition of the Natural Medicines database.
A Japanese e-book about margin trading from Nihon Shoken Shimbun's investment booklet series.
A short, free call to introduce what you need and see whether we are the right fit. Tell us a good time and we will call you.
A paid 45-minute call to talk through your systems and agree what to do first.
Dictionary, language, and reference apps on the App Store, plus FrontierStack for server management on macOS.