Expat

Japan Pension System for Foreigners: Must You Join?

Updated 2 October 2026 · 9 min read · Written by NS Naomi Sato

The Japan pension system for foreigners is compulsory for most residents aged 20 to 59: nationality does not make the contribution optional. Eligible employees join 厚生年金 (kōsei nenkin, Employees’ Pension) through work; other residents normally join 国民年金 (kokumin nenkin, National Pension) themselves. If you cannot pay, apply for a formal exemption or postponement rather than leaving an unexplained gap, especially if permanent residence is a future goal.

Japan pension system for foreigners: which category are you in?

Japan’s pension category depends on your work and family status, not your nationality. Residents aged 20–59 normally need coverage: Category I for people outside workplace pension, Category II for covered employees, and Category III for qualifying dependent spouses. Check each month after arrival or a job change; a residence card alone does not prove enrolment.

SituationPension routeWho handles enrolment and payment?
Self-employed, student, unemployed or between covered jobs; age 20–59Category I, National PensionYou file with the municipal office or Japan Pension Service and pay the flat contribution or seek an approved exemption
Employee covered by workplace pension, generally under age 70Category II, Employees’ PensionEmployer files and deducts your share from salary; workplace also contributes
Qualifying dependent spouse of a Category II member, age 20–59Category III, National PensionSpouse’s employer files; no separate Category I monthly premium for the covered period

Category II includes the basic pension, so a covered employee does not normally pay a second Category I bill for the same month. Your employer must enrol eligible workers; the Japan Pension Service’s October 2026 English guidance says employees and employers cannot opt out by agreement. Some part-time workers also qualify under the statutory workplace, hours and earnings tests. If a payslip omits pension, ask payroll which coverage category the employer reported. The hoken checker helps distinguish work and municipal coverage, but confirm a disputed month with the pension office.

As of FY2026, the Category I National Pension premium is ¥17,920 a month, from April 2026 through March 2027. Employees’ Pension uses salary-based contributions; it is not the same flat amount. A new arrival can have Category I months between moving in and the employer’s Category II start date. Japan Pension Service’s April 2026 guidance specifically warns that arrival-to-employment and post-resignation gaps among foreign workers are often left unpaid. Register the change rather than assuming the employer has covered earlier months.

Check the gap, not just this month’s payslip

A payroll deduction proves only that your employer is collecting for its covered period. A month before employment begins or after it ends may require your own Category I enrolment. Ask the pension office to show the monthly record, then correct a missing category or apply for an exemption where eligible.

If you cannot afford contributions, apply for an exemption

国民年金保険料免除 (kokumin nenkin hokenryō menjo) is an application for National Pension contribution exemption; 納付猶予 (nōfu yūyo) is postponement. These are decisions by Japan Pension Service, not an automatic consequence of being a foreign resident or receiving a bill. The FY2026 English guidance offers full or partial exemptions and postponement for financial difficulty, based on the applicable income tests. Students may apply for 学生納付特例 (gakusei nōfu tokurei), a separate student payment-postponement route.

Apply at the municipal pension counter, a Japan Pension Service branch or an available online route. Bring your pension number, identity documents and any evidence requested for income, unemployment or student status. The ordinary FY2026 exemption application year runs July 2026 to June 2027, while the FY2026 student route runs April 2026 to March 2027. JPS’s August 2026 application-period page says exemptions can generally be sought retroactively for months as far back as two years and one month before application, but late applications can affect disability or survivor benefit protection in the meantime. Submit promptly rather than relying on the outer limit.

An approved full exemption can count toward the ten-year minimum period for an old-age basic pension, but it produces a smaller pension than a fully paid month. Postponed months can help with qualification but do not increase the benefit amount unless later paid. Japan Pension Service allows eligible exempted or postponed contributions to be paid later within ten years. Ask for the written decision and keep it with the monthly pension record; it is your evidence that a month was approved, not simply unpaid.

Ask for a month-by-month record

Request your pension history through Japan Pension Service and reconcile it with job start and end dates. If you have a bill for a month that payroll says was covered, resolve the category before paying twice. If a month is genuinely Category I and unaffordable, apply for the appropriate exemption without delay.

What do social-security agreements change?

Japan Pension Service lists 24 social-security agreements in force as of March 2026, with Austria joining in December 2025. Their two possible functions are avoiding double compulsory contributions for certain cross-border assignments and combining periods in two countries to meet a pension qualifying period. The detail differs by country and type of work. A certificate of coverage is often central to a temporary-assignment exception; your nationality alone does not switch Japanese obligations off.

Four of the listed agreements—United Kingdom, Republic of Korea, China and Italy—cover avoidance of dual contributions but not totalisation of pension periods. Therefore, do not infer from the existence of a treaty that five years in Japan plus five years at home always completes Japan’s ten-year condition. Check the pension withdrawal decision guide before claiming a departure refund: taking it can erase periods you might otherwise use later. That separate guide covers the refund calculation, tax withholding and claim process; those are not part of choosing your present enrolment category.

Japan Pension Service says Old-age Basic Pension normally starts at age 65 after ten years of qualifying coverage, counting approved exempted periods as the rules allow. A cross-border worker should ask both national pension institutions which agreement provisions apply to their specific work history. Keep employer certificates, coverage decisions and your Japanese basic pension number even if you move abroad.

Treat a treaty as a personal coverage decision

A treaty country on the list does not mean every resident can choose their preferred country’s pension. The assignment, certificate and country-specific agreement determine the result. Ask the pension authorities to confirm the applicable system before either side stops contributions.

Why an unpaid pension month can matter for PR

The Immigration Services Agency’s permanent-residence guideline revised on 24 February 2026 explicitly includes payment of public pension premiums among public obligations that applicants must properly fulfil. An unexplained unpaid period can therefore damage a future application, even if your present visa renewal is not an immediate issue. The permanent-residence guide covers the wider evidence and timing rules.

The practical response is to fix the record while the documents are available: confirm which category covered each month, pay genuine outstanding contributions where possible, and apply for an exemption or postponement when eligible. Keep receipts and approval notices. Neither a late payment nor a later approval guarantees a PR decision, but a clear record is better than assuming a missed pension bill is invisible. For a disputed PR application involving pension history, consult a 行政書士 (gyōseishoshi, immigration procedures specialist) or a lawyer.

Frequently asked questions

Do foreigners have to pay pension in Japan?

Yes. Japan Pension Service says residents aged 20 to 59 must be covered by National Pension regardless of nationality, with limited status-specific exceptions. Covered employees enter Employees’ Pension through their employer; a self-employed person, student or person between jobs normally uses National Pension Category I. A recognised social-security agreement may change which country covers a temporary assignee. Low income is a reason to apply for an exemption, not to ignore a bill.

Do foreign students have to pay pension in Japan?

Yes, unless an approved student payment postponement applies. A resident student aged 20 to 59 is normally Category I under National Pension. Japan Pension Service offers 学生納付特例, a student special payment system, where the applicant’s income meets the test and the application is accepted. Postponement protects the coverage record, but the deferred months do not increase the eventual pension amount unless contributions are paid later.

What happens if I do not pay Japanese pension?

Unpaid months can reduce benefit rights and complicate a permanent-residence application. The Immigration Services Agency’s February 2026 guideline requires proper fulfilment of public obligations, explicitly including public pension premiums. If you cannot afford Category I contributions, apply promptly for an exemption or postponement; an approved period differs from an unexplained unpaid period. Contact the municipality or Japan Pension Service about a gap before it becomes harder to document.

Can I receive a Japanese pension if I leave Japan?

Yes, if you meet the benefit conditions. Japan Pension Service says Old-age Basic Pension normally requires at least ten years of qualifying coverage and is payable from age 65; contribution-exempted periods can count toward the qualifying period even though they may reduce the amount. Some social-security agreements allow periods from the other country to be totalised for eligibility. Check your record and treaty before choosing any lump-sum withdrawal.

Is Employees’ Pension an extra bill on top of National Pension?

No. Employees’ Pension coverage is the Category II route within Japan’s public pension structure and includes National Pension basic coverage. Your employer enrolls eligible workers and deducts the employee share of the salary-based contribution; you do not ordinarily pay a separate monthly Category I National Pension bill for the same covered months. If there was a gap before employment or after leaving the job, that gap may need Category I registration.