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Japan Tax Calculator

Estimate your income tax, residence tax, and take-home pay in Japan for 2026.

Income Tax
Residence Tax
Social Insurance

Your Income

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Enter your total annual income before taxes

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Disclaimer

This is an estimate only. Actual taxes may vary based on deductions, bonuses, and other factors. Consult a tax professional for accurate calculations.

Tax Breakdown

Enter your income to see tax breakdown

Tax Saving Tips

🏠 Furusato Nozei

Donate to local governments and receive tax deductions plus local gifts

💊 Medical Expenses

Deduct medical expenses over ¥100,000 per year

🏦 iDeCo Pension

Contribute to iDeCo for full tax deduction on contributions

🏠 Housing Loan

Get tax credits for mortgage payments on primary residence

Frequently Asked Questions

Japan uses a progressive tax system with rates from 5% to 45%. Your taxable income is calculated by subtracting deductions (employment income deduction, basic deduction, dependent deductions) from your gross income. The tax is then calculated based on which tax bracket your taxable income falls into.
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Understanding Japanese Income Tax

Japan has two main taxes on income: National Income Tax (所得税) and Residence Tax (住民税). Income tax is progressive from 5% to 45%, while residence tax is flat at approximately 10%.

As a foreigner, your tax status depends on your residency: Non-permanent residents (less than 5 years in Japan) are taxed only on Japan-source income and foreign income remitted to Japan. After 5 years, you become a permanent resident for tax purposes and are taxed on worldwide income.

Common deductions include: Basic deduction (基礎控除) of ¥480,000, dependent deductions for family members, social insurance premiums, and iDeCo contributions. These significantly reduce your taxable income.

Most employees have taxes withheld by their employer through the year-end adjustment (年末調整). Self-employed individuals must file a tax return (確定申告) by March 15 each year.

⚠️ Disclaimer: This tool provides estimates for educational purposes only. Tax laws change frequently. Always consult a licensed tax professional (税理士) or your local tax office for advice specific to your situation.

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How to Use the Japan Tax Calculator

  1. Enter your annual gross salary in yen — if you are paid monthly, multiply your monthly salary by 12 (the tool also has a monthly input option).
  2. Select your visa or residence status from the dropdown, as this affects which deductions and tax treaties apply to your situation.
  3. Add the number of dependents you are supporting, including family members living overseas — Japan allows dependent deductions for non-resident family members under certain conditions.
  4. Input any additional deductions you qualify for, such as national health insurance premiums, social insurance (shakai hoken), medical expenses over the threshold, iDeCo contributions, or earthquake insurance.
  5. Click Calculate to see a full breakdown: your income tax (shotokuzei), residence tax (juminzei), take-home pay, and your effective tax rate — all displayed in a clear, itemized summary you can save or print.

Why Japan's Tax System Surprises Foreigners Every Year

Japan's tax system is full of surprises that catch foreigners off guard, often at the worst possible times. The biggest shock for most new residents is the residence tax: unlike income tax which is withheld from each paycheck, residence tax is calculated on the previous year's income and billed as a lump sum — or added to paycheck deductions — starting in June of the following year. This means your first year in Japan feels affordable, then your second year suddenly has significantly more deducted from every paycheck. Many foreigners are blindsided by this and mistake it for an error.

Equally important is the issue of deductions that most foreigners never claim. Japan allows you to deduct overseas dependents (parents, siblings, children living abroad), which can save hundreds of thousands of yen per year. Medical expenses above a certain threshold are also deductible. iDeCo (individual defined contribution pension) contributions provide substantial tax savings, but only if you file a tax return yourself — your employer's year-end adjustment (nencho) won't include it. Earthquake insurance and home mortgage deductions follow similar rules.

Overpaying taxes is extremely common among foreigners because employers handle only the most basic deductions automatically. Understanding your actual tax burden allows you to make smarter financial decisions: how much to put in furusato nozei donations, whether iDeCo makes sense for you, and exactly what you will take home each month. This calculator surfaces the numbers that your payslip never explains.

Frequently Asked Questions

Japan's 2026 income tax brackets use progressive rates: 5% on taxable income up to ¥1.95 million, 10% up to ¥3.3 million, 20% up to ¥6.95 million, 23% up to ¥9 million, 33% up to ¥18 million, 40% up to ¥40 million, and 45% on income exceeding ¥40 million. An additional 2.1% reconstruction surtax is applied to the calculated income tax amount. Use this tax calculator to compute your precise liability across all brackets.
Residence tax (juminzei) consists of a proportional component of 10% of taxable income (6% paid to your prefecture, 4% to your municipality) plus a flat per-capita levy of approximately ¥5,000 regardless of income. The calculation is based on your income from the previous calendar year, meaning the tax you pay in 2026 is calculated from your 2025 earnings. This tax calculator applies the correct residence tax formula for your income and family situation.
Yes, you can claim overseas dependents on your Japanese tax return, but rules tightened significantly in 2023. Overseas dependents between ages 16 and 29 are only claimable if their annual income is below ¥480,000 or if you remitted ¥380,000 or more to support them during the year, verified with bank transfer records. Dependents aged 30 and over or under 16 are subject to different rules, and all claims require official documentation such as family registry translations.
Most salaried foreigners whose employer completes the nenmatsu chosei year-end tax adjustment do not need to file a separate tax return. However, you must file a kakutei shinkoku return if you have income over ¥20 million, income from two or more employers, freelance or self-employed income, or if you want to claim additional tax deductions not processed through your employer such as medical expenses or iDeCo contributions. This tax calculator helps you determine whether filing is advantageous.
The effective tax-free threshold for a salaried worker in Japan is approximately ¥1.03 million per year, derived by combining the basic personal deduction of ¥480,000 and the minimum employment income deduction of ¥550,000. Below this combined income tax threshold, no national income tax is owed. Note that residence tax has a separate lower threshold of around ¥450,000, so you may owe juminzei even when your income tax liability is zero.

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