Why Japan’s Birth Rate Keeps Falling Even as More People Get Married
Why Japan’s Birth Rate Keeps Falling Even as More People Get Married
- Japan recorded more marriages but fewer births in 2025, showing that marriage alone cannot reverse the demographic decline.
- Economic insecurity, career penalties around parenthood, unequal household labor, and the cost of raising children all influence family decisions.
- Nonregular employment remains a major part of Japan’s labor market, although it is misleading to describe it today as primarily a problem affecting young men.
- Japan’s experience suggests that birth-rate policy must address how work, money, housing, childcare, and gender roles interact rather than treating fertility as a simple cash-incentive problem.
Japan has produced an uncomfortable demographic result: marriages can rise while births continue to fall. According to the Ministry of Health, Labour and Welfare’s preliminary annual figures, Japan recorded 671,236 births in 2025, the lowest level in the series, while the total fertility rate fell to 1.14. At the same time, marriages increased to 489,119.
That does not mean marriage has stopped mattering. In Japan, marriage and childbearing remain closely connected. It does mean that getting more people married cannot automatically produce enough births to reverse decades of demographic decline.
The more difficult question is what happens after people consider marriage and parenthood. Careers, employment security, household labor, child-rearing costs, housing, and expectations about mothers and fathers all become part of the calculation. The demographic crisis is therefore not one problem. It is several systems colliding at once.
1. Parenthood Can Still Carry a Career Cost for Japanese Women
Japan has strengthened legal protections for pregnant workers and parents, but formal protections do not automatically remove the practical conflict between career advancement and family responsibilities.
The Japanese term matahara, short for maternity harassment, describes workplace harassment related to pregnancy and childbirth. This is not merely an internet label for unpleasant office behavior. Japan’s labor rules prohibit disadvantageous treatment such as dismissal or demotion because of pregnancy, childbirth, or the use of childcare-related leave, and employers are required to take measures to prevent related harassment.
The situation has improved in important ways. Japan’s 2021 National Fertility Survey found that employment continuity around the birth of a first child had risen sharply. Among wives who gave birth from 2015 through 2019, 69.5% continued working, and most of those continuing workers used childcare leave.
Still, remaining employed is not the same thing as experiencing no career trade-off. If long work hours, promotion systems, transfers, commuting, childcare availability, and household expectations remain difficult to reconcile, a couple may decide to delay a first child or stop at one child even when both partners want a larger family.
That distinction matters. Japan’s problem is no longer accurately described as simply “women quit their jobs after having babies.” The harder issue is whether employment, career progression, and parenthood can coexist without requiring one parent to absorb most of the cost.
2. Employment Insecurity Still Complicates Marriage and Family Formation
Japan’s labor market still contains a large nonregular workforce. Income stability matters because marriage and parenthood involve long-term financial commitments that become harder to make when earnings feel uncertain.
Japan’s post-bubble labor-market transformation created a large divide between regular employees and workers in part-time, temporary, contract, and other nonregular positions. In 2025, Japan had about 21.28 million nonregular employees, representing 36.5% of employees excluding company executives.
There is an important correction to the popular version of this story. Nonregular employment is not currently dominated by young men. In 2025, roughly 6.78 million nonregular workers were men and 14.50 million were women. The share also includes older workers, students, and people deliberately working reduced hours. A national 36.5% figure therefore cannot simply be translated into “36.5% of young adults have unstable jobs.”
Even with that distinction, economic security remains relevant to family formation. Japan’s National Fertility Survey shows that financial considerations continue to influence both partner preferences and decisions about children. Modern expectations have also changed: men increasingly consider a potential partner’s economic resources, while women place much greater weight than in the past on whether a partner will participate in housework and childcare.
The old single-provider model is weakening, but the replacement requires two incomes and more equal domestic participation to work smoothly. That transition is rather inconveniently occurring while jobs, housing, and children remain expensive.
3. The Cost of Raising Children Matters More Than One Tokyo Rent Number
Housing pressure is part of the problem, especially in large employment centers, but Japanese survey data points to the broader cost of raising and educating children as an especially important barrier to larger families.
The simple version of Japan’s urban problem says young adults must choose between expensive Tokyo and job-poor rural Japan. Reality is less tidy. Employment opportunities, wages, family support networks, commuting, housing size, and regional economies vary enormously, so there is no single city-versus-countryside calculation.
What national fertility data does show clearly is that money matters after couples begin thinking about family size. In the 2021 National Fertility Survey, among couples expecting fewer children than they considered ideal, the cost of raising and educating children remained the most commonly selected reason overall.
The effect becomes especially visible when couples consider a third child. Among couples whose ideal was at least three children but whose intended number was lower, 59.3% selected excessive child-rearing and education costs as a reason for not reaching their ideal family size.
Housing therefore belongs inside a wider affordability equation. A larger apartment, childcare, education, transportation, reduced working hours, and the risk that one parent’s career slows down can all arrive together. Families do not budget for a baby in isolation. They budget for the next two decades.
4. Work Culture and Unequal Household Labor Create a Second Shift
Japanese fathers are spending more time on childcare than previous generations, but the domestic workload remains heavily unequal in families with young children.
Japan’s work culture has changed, but long hours have not disappeared. The 2026 White Paper on Gender Equality reports that 7.9% of employed men in their 30s and 8.7% of those in their 40s were working 60 hours or more per week, substantially limiting the time available for household responsibilities in a key parenting stage.
The household gap is even clearer. Japan’s 2021 time-use survey found that in couples with children under age six, husbands averaged 1 hour 54 minutes per day on housework and related activities, while wives averaged 7 hours 28 minutes. Fathers’ participation had increased substantially from 2016, but the gap remained enormous.
Government analysis using the same period found that even when both partners were employed, wives with children under six still performed about 77.4% of household-related work.
That changes the economics of having a child. A couple may technically afford another baby while concluding that they cannot afford the time cost. When one partner is expected to maintain a demanding career and the other effectively receives a second unpaid job at home, low fertility becomes easier to understand and considerably harder to fix with a one-time payment.
5. Why Financial Incentives Alone Cannot Reverse Japan’s Birth Decline
Financial support can reduce the cost of parenthood, but fertility decisions are also shaped by employment stability, available time, career consequences, household labor, and confidence about the future.
It is tempting to treat birth policy like a vending machine: insert enough subsidies and babies should eventually emerge. Japan’s experience demonstrates why demographic behavior is less cooperative.
Cash assistance and childcare support can matter greatly to individual families. But a subsidy does not shorten a parent’s commute, divide housework at 10 p.m., guarantee career continuity after parental leave, stabilize a precarious job, or create additional hours in the day.
Nor should Japan’s declining birth rate be reduced to the claim that younger generations simply reject family life. The National Fertility Survey still finds gaps between the number of children many couples consider ideal and the number they expect to have. Costs, age and fertility constraints, work, and the physical or psychological burden of raising children all appear in those decisions.
The implication is less dramatic but more difficult: sustainable family policy has to make everyday parenthood more compatible with ordinary employment and ordinary incomes. Demographics respond to the structure of daily life, not just the size of a government check.
Key Takeaways at a Glance
- Marriage is not enough: Japan’s 2025 preliminary data showed marriages rising while births and fertility continued falling.
- Economic security still matters: Nonregular employment remains widespread, while child-rearing and education costs influence intended family size.
- Gender inequality has shifted rather than disappeared: More mothers remain employed, but women continue to carry most unpaid household work.
- Time is part of affordability: Long work hours and unequal childcare responsibilities can make another child unrealistic even when household income appears adequate.
- No single policy can solve the problem: Money, careers, childcare, work schedules, and family roles operate together.
| Pressure | What the Data Shows | Why It Matters |
|---|---|---|
| Marriage and births | 2025 marriages rose while births fell | More marriages do not guarantee more births |
| Employment | 36.5% of employees excluding executives were nonregular in 2025 | Income security affects long-term family planning |
| Child costs | Raising and educating children remains a leading concern | Desired and intended family size can diverge |
| Household labor | Women still perform far more unpaid family work | Parenthood can create a severe time burden |
| Policy | Financial help addresses only part of the problem | Work and family structures also shape decisions |
Japan’s Demographic Problem Is Really a Daily-Life Problem
Japan’s latest numbers weaken one of the simplest demographic narratives. More marriages are welcome for anyone expecting them to produce more births, but marriage statistics cannot overcome the pressures couples encounter afterward.
The relevant question is not merely whether adults want families. It is whether employment, housing, childcare, careers, and household responsibilities make the family they want realistically sustainable.
That is why Japan matters beyond Japan. Other wealthy societies do not have identical labor markets or family cultures, but many face the same uncomfortable tension: modern economies depend heavily on workers’ time while raising children also requires enormous amounts of time. Demographic policy eventually has to decide how those two demands are supposed to coexist.
Sources
Ministry of Health, Labour and Welfare • 2025 Vital Statistics Annual Preliminary Report
Statistics Bureau of Japan • Labour Force Survey, 2025 Annual Average
Cabinet Office Gender Equality Bureau • Gender Equality White Paper: Work, Housework and Childcare
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