Japan Salary Tax Calculator
How the Japan salary tax calculator works
This free Japan tax calculator estimates your take-home pay — the amount that actually lands in your bank account after tax and social insurance are deducted from your gross salary. Enter your annual or monthly income and it estimates your income tax, resident tax, and social-insurance deductions using current NTA brackets and standard Kyōkai Kenpo rates, then shows your net pay and, optionally, how much is realistically free for savings and investing.
It's built for foreigners and international households in Japan who want a clear, English-language breakdown of Japanese payroll — without needing to read a Japanese-language payroll slip.
What gets deducted from your salary in Japan?
Your gross salary (額面) is reduced by four things before it becomes take-home pay (手取り):
- Income tax (所得税) — a national, progressive tax withheld monthly by your employer (源泉徴収). Rates rise from 5% to 45% across income bands, plus a 2.1% reconstruction surtax.
- Resident tax (住民税) — a local tax of roughly 10% of your previous year's income. It's why your take-home often drops in your second year in Japan, even without a pay change.
- Social insurance (社会保険) — health insurance (~5% employee share), Employees' Pension (9.15%), and employment insurance (0.5%). From age 40, long-term care insurance is added.
- Employment insurance and, depending on your situation, other small levies.
Together these typically take 15–25% of gross for a first-year employee, before resident tax begins.
How is income tax calculated in Japan?
Japanese income tax is progressive and applied to your taxable income — gross income minus the employment-income deduction and personal deductions (basic, dependents, social insurance, and so on). Each slice of income is taxed at its band's rate, not your whole income at the top rate. Because the calculation stacks brackets, employment deductions, and social insurance, a calculator is the fastest way to see your real number.
Worked example
On a ¥5,000,000 salary for a single employee in Tokyo, a rough split is: income tax and resident tax together around ¥400,000–¥500,000, and social insurance around ¥700,000 — leaving take-home pay in the region of ¥3.8–3.9 million. Your exact figure depends on your municipality, employer, dependents, and deductions, which is what the calculator estimates for you.
Frequently asked questions
How do I calculate my take-home pay in Japan? Start from your gross salary, then subtract income tax, resident tax, and social insurance (health, pension, employment). This calculator does it for you using current NTA brackets — enter your income and it returns an estimated net figure.
How much tax do foreigners pay in Japan? The same as Japanese nationals — tax residency, not nationality, is what matters. A typical employee loses roughly 15–25% of gross to tax and social insurance early on, rising once resident tax starts in year two.
What is resident tax and why did my salary drop in year two? Resident tax is a local tax of about 10% of your prior year's income, collected from June of the following year. In your first year you usually owe little; from your second year it's deducted monthly, lowering your take-home.
Is this calculator accurate for freelancers? It estimates both employee and freelance situations, but self-employed tax depends heavily on expenses and blue-return deductions. Treat the result as a planning estimate and confirm with the NTA or a tax professional.
This is an educational estimate, not tax advice. Actual amounts vary by municipality, employer, deductions, age, dependents, and tax year — confirm with the NTA or a qualified professional.