Explain the paycheck after social insurance
Best for users comparing shakai hoken, pension, resident tax, and income tax on a monthly salary.
Japan health insurance calculator for social insurance planning
Estimate monthly health insurance and related payroll deductions from salary, prefecture, and age when you are already enrolled in employee social insurance. Use the dedicated National Health Insurance routes for freelance, student, or job-gap planning.
Insurance router
Route health-insurance searches by employment and coverage risk
Health-insurance users often need payroll, NHI, job-change, working-holiday, or other insurance decisions next. These paths improve the first-page experience and route value into related RPM clusters.
Move municipal-insurance users into city-office tasks
Use when the search is about NHI cost, public insurance for foreigners, address registration, or payment access.
Handle the insurance switch before coverage ends
Best for resignation, unemployment, leaving Japan, NHI withdrawal, final premium, and pension-refund-adjacent flows.
Connect medical cover with lease, car, and short-stay risk
Use when a user needs travel health insurance, tenant liability, car insurance, or working-holiday budget planning.
Questions this page answers
Use this page when the query is about Japan health insurance cost, shakai hoken, National Health Insurance, employee insurance, long-term care premiums from age 40, working holiday insurance, or what happens to insurance after resignation.
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- Japan working holiday health insurance
- Japan employee health insurance
- Japan long-term care insurance age 40
- Japan health insurance visa renewal
- Japan NHI leaving Japan
What affects Japan health insurance cost
Prefecture
Employee health insurance rates can vary by region and insurer, so location matters.
Age
Long-term care insurance starts for many workers from age 40 and changes monthly deductions.
Employment type
Company employee, part-time, freelancer, and student assumptions differ.
Bonus
Annual bonus can affect social-insurance burden and annual take-home planning.
Use with salary planning
- Run the salary calculator first, then compare the health insurance line item separately.
- Check age 40+ scenarios if you are close to the long-term care premium threshold.
- Confirm final rates with your insurer, employer, municipality, or official notices.
Next action by insurance question
Why is my payslip deduction high?
Use the payslip page to separate health insurance, Employees' Pension, employment insurance, income tax withholding, resident tax, and first-paycheck timing.
I am on NHI or not employed
Estimate municipal National Health Insurance risk from prior-year income, household, city, age 40 care portion, premium notices, reductions, and unpaid-bill risk.
I quit or lost my job
Check employer insurance loss, NHI switch, voluntary continuation, resident tax reserve, Hello Work timing, and visa notification tasks together.
I am on working holiday
Compare travel medical insurance, NHI after address registration, employer insurance, 30% co-pay, and repatriation or liability gaps.
I am leaving Japan
Use the leaving checklist for moving-out notification, NHI withdrawal, card return, unpaid premium checks, final premium reserve, and mail follow-up.
I need visa renewal evidence
Check tax certificates, insurance/payment signals, employer documents, residence card timing, and municipal paperwork before status extension.
Common insurance handoff paths
Working holiday medical cover
Use this when the query includes Japan working holiday health insurance, travel medical insurance, visa insurance, NHI, or repatriation gaps.
National Health Insurance cost
Estimate city-office NHI budget from prior-year income, age 40 care portion, household members, 14-day enrollment, payment slips, and reduction checks.
Apartment renters insurance
Route housing users to fire insurance, earthquake add-on, tenant liability, contents coverage, and lease renewal questions.
Car or rental insurance
Route driving users to CALI, voluntary insurance, English support, rental CDW, non-operation charge, and payment readiness checks.
Bicycle liability insurance
Use this for commute setup, anti-theft registration, used-bike transfer, liability insurance, parking, and e-bike legality.
Full resident insurance map
Continue into salary, NHI, resignation, apartment insurance, car insurance, pension refund, visa renewal, and leaving-Japan workflows.
Choose the right insurance path
Company employee
Start with monthly salary, prefecture, age, and bonus assumptions. Then compare the result with the salary calculator and payslip deduction calculator because pension, employment insurance, withholding, and resident tax affect the same paycheck.
Part-time or working holiday
Use the result as a planning signal only. Coverage can depend on hours, employer size, income, and enrollment status. Japan working holiday users should also check 20.42% tax withholding.
Arrival-stage working holiday
Open the working holiday health insurance calculator when the question is travel medical cover, National Health Insurance, address registration, employee insurance, or repatriation coverage.
Freelancer, student, or job gap
Municipal National Health Insurance-style costs are often driven by prior-year income, household facts, and income reporting. If the gap starts after resignation, use the resignation and unemployment insurance calculator first for Hello Work, visa notification, resident tax, and insurance-switch timing. Then use the NHI cost calculator for foreigners for 14-day timing, premium notice, payment slips, and reduction screening before comparing rent and living costs in the foreign-resident hub.
Leaving Japan or moving out
Use the NHI leaving checklist for moving-out notification, NHI withdrawal, card return, unpaid premium checks, final premium reserve, and mail handling. If you are moving within Japan, use the address change checklist for NHI address, My Number, residence card, mail, and utility updates.
Health insurance FAQ
Why is social insurance sometimes higher than expected?
The employee share can include health insurance, Employees' Pension, employment insurance, and age 40+ care premiums. Bonuses can also affect annual burden.
What should a new foreign resident ask the employer?
Ask whether you will be enrolled in employee social insurance, when coverage starts, how dependents are handled, and when the first deduction appears on payroll.
What should I check if I leave a job?
Confirm whether you move to municipal insurance, voluntary continuation, a dependent route, or a new employer plan. Municipal bills may be based on prior income.
What should I check before leaving Japan?
If you are on municipal National Health Insurance, confirm moving-out notification, NHI withdrawal, card return, unpaid premiums, and final premium settlement before departure.
Official sources
- Japan Health Insurance Association: prefectural premium tables
- Japan Pension Service: English pension information
- Embassy of Japan in the Netherlands: working holiday National Health Insurance guidance
- Shinjuku City: National Health Insurance premium overview
- Shinjuku City: National Health Insurance withdrawal