Please find this month’s topics below. We hope they will be useful to you.
▼Taxation
Suspension of New ID/Password Issuance for “Tax Return Preparation Corner” Users
When submitting an income tax return using the “Tax Return Preparation Corner” on the National Tax Agency website, there are three methods available:
① Using a My Number Card
② Using an ID and Password
③ Using Paper
As of October 1, 2025, new issuance of IDs and passwords (Method ②) has been discontinued.
From now on, if you wish to use the “Tax Return Preparation Corner” to file your income tax return, you must use either ① My Number Card or ③ Paper Filing. IDs and passwords already issued remain valid for continued use.
▼Labor Management
Expansion of Social Insurance Coverage
The Pension System Reform Act was enacted in June 2025, expanding the coverage of social insurance (Employee Pension Insurance and Health Insurance). This reform reduces and eliminates company size requirements and abolishes the wage requirement for part-time workers. As a result, part-time workers who work 20 hours or more per week will be enrolled in social insurance regardless of the size of the company they work for. The scope of covered companies will be expanded gradually over 10 years as follows:
・51 or more employees: Current coverage
・36 or more employees: From October 2027
・21 or more employees: From October 2029
・11 or more employees: From October 2032
・10 or fewer employees: From October 2035
Source: Ministry of Health, Labor and Welfare Website「社会保険の加入対象の拡大について」