AllSetGo
HomeChanging / Leaving JobHealth Insurance Switch
Within 14 days

Health Insurance Switch

When you leave your job, your company health insurance (shakai hoken) ends. During any gap, you must choose one of three options: ① enroll in National Health Insurance, ② continue your former company's insurance for up to 2 years (voluntary continuation), or ③ join a family member's insurance as a dependent.

💡

Showing common documents only

Complete the situation questionnaire to see a personalized document list for your visa type and employment status

See the documents you need (6 questions · 1 min)
📋

Documents needed

Residence Card
ID document (My Number Card, driver's license, etc.)
Certificate of loss of health insurance eligibility (from former employer)
My Number Card or notification card
🗂️

Steps

1

Obtain a 'Certificate of Loss of Health Insurance Eligibility' from your former employer

2

Choose one of the following options: ① National Health Insurance: enroll at your local city/ward office within 14 days of leaving ② Voluntary continuation: apply to your former employer's health insurance association within 20 days of leaving ③ Family dependent: ask your spouse's employer to add you as a dependent

3

Verify that your enrollment is reflected on your My Number Card (myna hoken-sho). If you don't have one or your My Number is not linked, a Qualification Confirmation Certificate (shikaku kakunin-sho) will be issued by your insurer instead

⚠️

Important notes

National Health Insurance premiums are calculated based on your previous year's income — if you earned a lot last year, premiums may be high immediately after leaving

Voluntary continuation: you pay the full premium yourself (about double what you paid while employed), though it can still be cheaper than National Health Insurance if your previous year's income was high. The premium is based on your standard remuneration at the time you left and stays fixed for 2 years

To take up voluntary continuation you need at least 2 continuous months of health insurance coverage up to the day before your eligibility ends - not necessarily at the employer you just left, as long as the months run without a gap (periods of voluntary continuation itself and of mutual aid associations do not count). The application is due within 20 days of losing eligibility, moving to the next working day if day 20 falls on a weekend or holiday; if you post it, it must arrive within those 20 days

Do not leave a gap in coverage — if enrollment is delayed, you may have to pay the full cost at the counter for any medical treatment during that period

If your new employer is a covered workplace and you meet the enrollment requirements, your employer will handle the health insurance enrollment from your start date

Official info verified: 2026-09-10 / Source: kyoukaikenpo.or.jp
See the documents you need (6 questions · 1 min)