Japan Social Insurance Calculator
Calculate Japan social insurance (shakai hoken) premiums for 2025: health insurance (~5% employee share), pension/kosei nenkin (~9.15% employee share), employment insurance (0.6%), and long-term care insurance (~0.91% for age 40+). Employer matches health and pension contributions. Total employee social insurance burden is approximately 15% of gross salary.
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Japan Tasas y Reglas
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Aviso: Aviso: Esta calculadora usa reglas publicas vigentes desde la fecha indicada. Los resultados son solo informativos. Verifique con fuentes oficiales. Ultima revision: 1 mar 2026.
Formula
Social insurance (shakai hoken) premiums are split between employee and employer. Health insurance is approximately 5% (employee share), pension approximately 9.15%, and employment insurance 0.6%.
Preguntas Frecuentes
What is shakai hoken?
Shakai hoken (social insurance) is the mandatory system covering health insurance (kenko hoken) and pension insurance (kosei nenkin). Premiums are split equally between employee and employer. All companies with employees must enroll.
How much is the employee share of social insurance?
Approximately 15% of gross salary: health insurance ~5%, pension ~9.15%, employment insurance 0.6%, and long-term care ~0.91% (age 40+). Your employer pays an equal or greater matching amount on top.
What is kosei nenkin (employees pension)?
Kosei nenkin is the employees pension insurance at approximately 18.3% of standard monthly remuneration, split equally (9.15% each) between employee and employer. It provides retirement pension on top of the basic national pension (kokumin nenkin).
When does long-term care insurance start?
Kaigo hoken (long-term care insurance) applies automatically when you turn 40. The employee rate is approximately 0.91%. It funds elder care services and is deducted alongside health insurance premiums.
Are social insurance premiums tax deductible?
Yes. The full amount of social insurance premiums you pay (both shakai hoken and kokumin nenkin/kokumin kenko hoken) is deductible from taxable income. This is one of the largest deductions available to Japanese employees.
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