Before you start

Ward registration completed
Residence card
Employment or enrolment details
My Number

Step-by-step

1
Establish which scheme you are in
Full-time employees are usually enrolled in shakai hoken by their employer. Everyone else — students, researchers on fellowships, freelancers, part-timers — must enrol in National Health Insurance at the ward office themselves. There is no option of being uninsured.
Via employerWho: YouWeek 1–2
2
Enrol at the ward office if your employer does not
Do it in the same visit as your address registration. Premiums are income-based and calculated on last year's income, so a first year in Japan is usually very cheap and the second is not.
In personWho: YouWithin 14 days
3
Apply for the student or low-income reduction if it applies
National Health Insurance premiums can be substantially reduced or waived for students and people on low incomes, but you must apply — it is not automatic. Given how much of Kyoto's foreign population is academic, this is one of the more widely applicable and widely missed entitlements in the city.
In personWho: You
4
Understand the 30% co-payment and the monthly ceiling
You pay 30% of most treatment costs at the counter. Above a monthly threshold that scales with income, the high-cost medical expense benefit caps what you pay. Apply for a limit certificate in advance if you know a major treatment is coming.
In personWho: You
5
Enrol in the pension and keep the records
Pension enrolment is compulsory alongside health insurance, and students can apply for a payment deferral rather than simply not paying. Keep your pension book and every contribution record.
In personWho: You
6
Claim the pension lump-sum withdrawal when you leave
If you leave Japan having contributed for at least six months, you can claim a lump-sum refund of part of your contributions, applied for within two years of departure. It is substantial for anyone who stayed a few years and it is very commonly forgotten.
OnlineWho: YouWithin 2 years of leaving Japan

Documents you’ll need

Residence card
My Number
Health insurance card or registered My Number card
Pension handbook
Student or enrolment certificate, for reductions

Things most newcomers don’t know

Students and low earners can have National Health Insurance premiums substantially reduced, on application.

The municipal scheme's premiums are income-based, and reductions or exemptions exist for students and low-income residents — but they must be applied for at the ward office and are not granted automatically. In a city where a large proportion of foreign residents are students, researchers or on fellowship stipends, this is one of the most broadly applicable and most frequently missed entitlements available.

Source: Kyoto City

The high-cost medical expense benefit is what makes the 30% co-payment survivable.

Paying 30% of everything sounds alarming until you learn that monthly out-of-pocket costs are capped at a threshold scaling with income. A major operation costs a manageable amount rather than a catastrophic one. If you know a significant treatment is coming, applying for the limit certificate in advance means the cap applies at the counter rather than being reclaimed later.

Source: Ministry of Health, Labour and Welfare

The pension lump-sum withdrawal is real money and departing residents routinely forget it.

Anyone who contributed for at least six months can claim back part of their pension contributions after leaving Japan, within two years of departure. For someone who stayed three or four years this is a meaningful sum. It requires paperwork sent from abroad and a Japanese bank account or a tax representative, so the groundwork has to be done before you leave.

Source: Japan Pension Service

Kyoto's basin climate produces genuine seasonal health issues.

The mountains on three sides trap humid air in summer and cold air in winter, and the housing stock has almost no insulation or central heating. Heatstroke in August and cold-related problems in January are both more common here than the latitude suggests. Choosing a flat with functioning air conditioning that also heats, and taking the summer heat advisories seriously, are practical rather than fussy.

Source: community-reported

Common mistakes to avoid

Assuming health insurance is optional if you are a student or freelancer — it is not.
Not applying for the student or low-income premium reduction.
Budgeting from your first-year premium, which is artificially low.
Leaving Japan without claiming the pension lump-sum withdrawal.
Underestimating the basin climate in a flat with no real heating.

Some of this may be out of date. Spotted something inaccurate? Help us keep it right for the next newcomer.