Japan quietly gives one group a very good deal: the dependent spouse of a company employee can earn a pension for free. But it's tied to three things that change — your income, your marriage, and your spouse's employment. Mio doesn't assume it's permanent; Mio watches the triggers. Here's how it actually works.
Everyone aged 20–59 living in Japan is in the National Pension, sorted into three types of "insured person":
• Category 1 — the self-employed, freelancers, students, and non-working people who aren't a Category 2's dependent. They pay the flat National Pension premium themselves.
• Category 2 — company employees and civil servants enrolled in Employees' Pension Insurance (EPI). Premiums come out of salary.
• Category 3 — a Category 2 person's economically-dependent spouse, aged 20–59 and residing in Japan. The Japan Pension Service defines them as "Category II insured persons' economically-dependent spouses between age 20 and 59, residing in Japan." Category 3 is the only status where you pay no premium of your own.
This is the part that surprises people. A Category 3 spouse does not pay National Pension contributions — the official page states they "do not have to pay their own National Pension contributions." Yet those months still count toward the Old-age Basic Pension. The cost is effectively shared across the whole Employees' Pension Insurance system, not billed to you or added on top of your spouse's premium. So a stay-at-home or part-time spouse accrues basic-pension months for free.
To be "economically dependent," your income has to be low enough. The standard rule: your annual income must be less than ¥1.3 million and less than half of the insured worker's income. The Japan Pension Service dependent rule reads that the person "lives with you and has an annual income of less than ¥1.3 million AND less than half of insured worker's annual income."
That ¥1.3M figure is one of the famous Japanese "income walls." There's also a lower ¥1.06M wall where, at larger employers, a part-time worker can be pulled into Employees' Pension Insurance in their own right (becoming Category 2) even before ¥1.3M. Crossing either wall means you stop being "free" and start paying — pension, and usually your own health insurance too. That's why so many dependent spouses cap their hours. See exactly how the 106/130 walls hit take-home →
Category 3 depends entirely on your spouse staying a Category 2 and on you staying dependent. It ends when:
• Your income rises past the dependent limit (or you're enrolled in EPI yourself) → you become Category 1 or 2 and start paying.
• Your spouse loses or leaves their employee job (becomes self-employed, unemployed, or freelance) → they drop out of Employees' Pension Insurance, so your Category 3 ends too and you both become Category 1.
• Your spouse turns 65 and becomes eligible for the Old-age Basic Pension → the enrolment page notes Category 3 excludes the "spouse of Category II insured person who reached age 65 and eligible for Old-age Basic Pension."
• Divorce → you are no longer a spouse, so Category 3 ends immediately and you must re-enrol yourself (typically as Category 1).
When any of these happen you generally have about 14 days to change your category at your municipal office. Miss it and you can end up with unpaid-premium gaps that dent your future pension — a common, avoidable mistake.
If you're a foreign national who spent time as a Category 3 spouse and then leave Japan, those months still count toward a pension you may never collect. Instead you can claim the Lump-sum Withdrawal Payment (dattai ichijikin). Broad official conditions: you are not a Japanese national, you paid into the National Pension or Employees' Pension for 6 months or more, you no longer have an address in Japan, and you have never qualified for any Japanese pension benefit. You must apply within 2 years of leaving.
Two things to weigh. First, a pure Category-3-only history means no premiums were paid by you, so the lump-sum reflects contributed months — check with the Japan Pension Service what, if anything, is payable in your case. Second, claiming the lump-sum wipes out those coverage periods for future benefits, and if your home country has a totalization agreement with Japan, keeping the record may be worth more than the cash. See the leaving-Japan pension refund guide → and totalization agreements →.
| Your situation | Category 3? | What it means |
|---|---|---|
| Spouse is a company employee; you earn < ¥1.3M & < half theirs | ✅ Yes — pay ¥0 | Basic pension months accrue free. Keep income under the wall. |
| You cross ¥1.06M at a large employer / ¥1.3M generally | ❌ No | You become Category 2 or 1 — start paying pension + health insurance. |
| Spouse becomes self-employed / unemployed | ❌ No | Both become Category 1 — re-enrol and pay within ~14 days. |
| Divorce, or spouse turns 65 (basic pension) | ❌ No | Category 3 ends — switch category promptly to avoid gaps. |
| Foreigner leaving Japan after ≥6 months coverage | — | May claim lump-sum within 2 years (check totalization first). |
Illustrative only. Thresholds, higher limits for certain ages/disabilities, and lump-sum amounts depend on your exact record — the Japan Pension Service and your spouse's employer are the authorities for your case.
Related reading: do foreigners have to pay pension? → and dependent-visa spouses and working in Japan →.
Mio