Japan Income Tax Calculator — National + Resident Tax 2025
National Income Tax
JPY 0
Reconstruction Surtax
JPY 0
Resident Tax (10%)
JPY 0
Social Insurance (est.)
Total Tax + Social Insurance
JPY 0
Net Annual Income
JPY 0
Effective Tax Rate
0%
How to Calculate Japan Income Tax
Japan's income tax system consists of national income tax (shotokuzei) with progressive rates from 5% to 45%, plus a flat 10% resident tax (juuminzei) levied by prefectures and municipalities. This calculator estimates your total Japanese tax burden for 2025, including the 2.1% reconstruction surtax that has been in effect since 2013 to fund earthquake recovery and continues through 2037.
Salaried employees benefit from the employment income deduction (kyuyo shotoku kojo), which automatically reduces taxable income based on salary level, capped at JPY 1,950,000 for salaries over JPY 8,500,000. The basic personal deduction is JPY 480,000, with additional deductions for dependents (JPY 380,000 each) and a qualifying spouse. Social insurance contributions (pension, health, unemployment, and care insurance) totaling roughly 15% are also fully deductible.
Most employees in Japan have tax withheld at source through the year-end adjustment (nenmatsu chosei) performed by their employer, eliminating the need to file a tax return in many cases. Self-employed individuals and those with income exceeding JPY 20 million must file a return (kakutei shinkoku) between February 16 and March 15. Furusato nozei (hometown tax) donations allow you to redirect a portion of resident tax to other municipalities in exchange for local gifts.
Frequently Asked Questions
What are the 2025 Japan national income tax brackets?
Japan national income tax brackets for 2025 are: 5% on income up to JPY 1,950,000; 10% on JPY 1,950,001 to 3,300,000; 20% on JPY 3,300,001 to 6,950,000; 23% on JPY 6,950,001 to 9,000,000; 33% on JPY 9,000,001 to 18,000,000; 40% on JPY 18,000,001 to 40,000,000; and 45% on income over JPY 40,000,000. There is also a 2.1% surtax for reconstruction.
How does resident tax (Juuminzei) work in Japan?
Resident tax (juuminzei) is a flat 10% — consisting of 6% prefectural tax and 4% municipal tax — applied to the previous year income. There is also a per-capita levy (kintowarigaku) of approximately JPY 5,000 per year. Resident tax is typically deducted from salary in 12 monthly installments from June.
What deductions are available in Japan?
Key deductions include the basic deduction (JPY 480,000 for income under JPY 24 million), employment income deduction (varies by salary), social insurance deduction (full amount), spouse deduction, dependent deduction (JPY 380,000-630,000 each), and life/earthquake insurance deductions. Medical expenses over JPY 100,000 are also deductible.
Do foreigners pay tax in Japan?
Non-permanent residents (in Japan less than 5 of the past 10 years) are taxed on Japan-sourced income and foreign income remitted to Japan. Permanent residents and Japanese nationals are taxed on worldwide income. The same national and resident tax rates apply. Tax treaties may provide relief from double taxation.