The Japanese government has approved significant amendments to the Civil Code that will modernize how residents create wills and fundamentally reshape the adult guardianship system used by families managing affairs for elderly or incapacitated relatives. The reforms, announced on April 3, 2026, represent the most substantial changes to these legal procedures in decades. According to NHK Politics, the centerpiece of the legislation is a comprehensive overhaul of Japan's adult guardianship system (seinen kōken seido), which currently allows third parties to manage property and make decisions on behalf of individuals with dementia or other cognitive impairments. Under existing law, once guardianship is established, it typically continues for the person's lifetime regardless of whether their condition improves or their needs change. The new amendments will abolish this lifetime guardianship requirement, introducing flexibility that has long been requested by families and advocacy groups. This change acknowledges that cognitive abilities can fluctuate and that some individuals may regain capacity to manage their own affairs, either partially or fully. The reform aims to better protect the autonomy and rights of people under guardianship while still providing necessary support. For foreign residents in Japan, this guardianship reform has important implications. Expats who have elderly parents living with them in Japan, or who themselves may eventually need such support, will benefit from a system that can be adjusted or terminated as circumstances change. Previously, families faced the burden of permanent guardianship arrangements even when they were no longer necessary, potentially limiting an individual's legal rights indefinitely. Equally significant for the international community is the introduction of digital will creation. According to Yahoo Japan, the amendments will permit individuals to create legally valid wills using smartphones or personal computers. Currently, Japanese law recognizes several types of wills, but the most common self-written version (jihitsu shōsho유언) must be handwritten entirely by the testator, signed, and sealed—a requirement that has posed challenges in the digital age. The new digital will option will likely require specific authentication measures to ensure validity and prevent fraud, though exact procedural details will be clarified as the legislation moves through the Diet and implementing regulations are developed. This modernization brings Japan more in line with international practices and acknowledges how people increasingly manage important documents electronically. For expats living in Japan, digital wills offer practical advantages. Foreign residents who own property in Japan, have Japanese bank accounts, or wish to leave assets to family members will find the process more accessible. The ability to create and potentially update wills digitally removes language and procedural barriers that may have discouraged some foreign residents from proper estate planning. However, expats should note that international estates involving assets in multiple countries remain complex and typically require professional legal advice to navigate conflicting inheritance laws. The government's decision to pursue these reforms reflects broader recognition that Japan's legal framework must adapt to demographic realities. With approximately 29% of Japan's population now aged 65 or older, and dementia cases projected to increase significantly, the guardianship system affects hundreds of thousands of families. Similarly, as digital literacy increases across all age groups, permitting electronic will creation simply recognizes contemporary practices. The amendments now proceed to the Diet for formal legislative approval. If passed as expected, implementation timelines will be established, though complex legal changes typically include transition periods. Foreign residents should monitor developments through official government channels and consult with legal professionals familiar with both Japanese law and international estate planning. These reforms demonstrate Japan's ongoing efforts to modernize its legal infrastructure while maintaining protections for vulnerable individuals. For the expat community, they represent welcome progress toward more flexible, accessible legal procedures that better serve diverse residents navigating Japan's civil law system.