In Japan, divorce splits parents from children. Could a law change end sole custody?
In Japan, divorce splits parents from children. Could a law change end sole custody?
In Japan divorce splits parents – For decades, Japanese family law has been a source of emotional strain for many parents, particularly those who experience divorce. Under the old system, children often became permanently attached to one parent while the other was effectively excluded from their daily lives. This has now changed with the recent revision of Japan’s Civil Code, which came into effect on 1 April 2026. The new law introduces joint custody as an option for divorced couples, marking a pivotal shift in how parental responsibilities are distributed. This update has reignited discussions about the evolving concept of family in a society that is grappling with demographic challenges and increasing calls for more equitable child-rearing practices.
The Story of John Deng
John Deng, a Hong Kong resident who has called Japan home for 22 years, finds himself in a situation that many divorced fathers in the country can relate to. His children, a son aged eight and a daughter aged ten, are no longer part of his routine. He recalls the moment when his marriage dissolved, and his ex-partner took the children without prior notice. “I felt helpless—sad and angry about the system that allows this to happen,” Deng said, his voice steady but filled with emotion. “They mean the world to me.” The absence is more than physical; it has created a sense of emotional emptiness, with Deng relying on brief visits and supervised time to stay connected. Despite maintaining residences in Tokyo and a town closer to his children, his access is limited, and his daughter now avoids phone calls with him altogether. This scenario, while heartbreaking, is far from unique in Japan, where sole custody has long been the default.
“It always shocked me that every time I speak to lawyers in the US and the UK, they say that it’s not about win or lose,” recalled Seiya Saito, a family lawyer at Setagaya International Law Office in Tokyo. “It’s just focusing on the best interest of children.”
The previous legal framework treated custody as a binary decision, often favoring the parent who initially took the children. This approach, which left the other parent with little to no rights, has been criticized for prioritizing formal separation over the emotional needs of the child. Deng’s experience exemplifies this issue, as he was left with no say in his children’s upbringing after his ex-partner secured sole custody. The new law aims to rectify this by allowing both parents to share decision-making and responsibilities, ensuring children can maintain relationships with both parents unless there are specific reasons to restrict access. For parents like Deng, this change offers a glimmer of hope, though it is still a work in progress.
Japan’s Legal Landscape Before the Change
Until 2024, Japan was the only G7 nation that did not formally recognize joint custody. This meant that once a couple separated, the child’s legal rights were typically assigned to one parent, often the one who had custody first. The other parent was then left to navigate a system that could force them into a role of invisibility, even if they remained emotionally involved. This approach, while rooted in tradition, has been increasingly seen as outdated in a modern society where both parents often play active roles in raising children. The Ministry of Health, Labor and Welfare reported that in 2024, 38.5% of marriages ended in divorce, with over one in three couples affected. In these cases, women were awarded custody in more than 86% of instances, while shared arrangements accounted for only a small fraction. The result is a population of over 164,000 children under 18 who were impacted by custody decisions that left them disconnected from one parent.
The New Era of Shared Custody
The revised Civil Code introduces a more flexible model, acknowledging that children can benefit from maintaining ties with both parents. This approach aligns Japan with its global counterparts, where the child’s best interests are typically the central focus of custody decisions. The law allows divorced couples to co-parent, distributing responsibilities and ensuring access to both parents unless there are valid reasons for exclusion. For families who have already built amicable relationships, this change is a welcome relief. Seiya Saito, a family law expert, emphasized that the shift represents a significant step forward. “For those who are already amicable and can make decisions together, joint custody is a great option,” Saito explained. “It’s a good change for our society, especially for the children.”
The new law also addresses broader societal challenges. Japan’s population is aging rapidly, and the birthrate continues to decline, putting pressure on families to adapt to new realities. With fewer children being born and more families facing economic strain, the government has been urged to support parents more effectively. Shared custody could alleviate some of the burdens on single parents, allowing them to share financial and emotional responsibilities. However, the law is not without its complexities. For instance, it requires divorced couples to actively negotiate and agree on joint custody arrangements, which may not be feasible for all. Despite these hurdles, the change is seen as a necessary evolution in family law.
Voices from the Legal Community
Legal professionals have been vocal about the implications of the new system. While many view it as a positive development, others are cautious about its potential risks. For example, critics worry that joint custody could expose children to ongoing conflict or even force them into contact with abusive partners. “There is a risk that those suffering from domestic violence may face renewed challenges,” one legal analyst noted, highlighting the importance of safeguards in custody cases. This concern underscores the need for a balanced approach, where the law promotes shared parenting while protecting vulnerable families from potential harm.
The amendment to the Civil Code is a response to growing awareness of the emotional and psychological impacts of sole custody. It reflects a shift in