Japan Income Tax Guide for Foreign Residents

Moving to Japan means navigating a tax system that may feel unfamiliar at first, but understanding your obligations is essential for staying compliant and avoiding penalties. Whether you are an English teacher, IT professional, or business owner, this guide breaks down everything foreign residents need to know about Japan's income tax system.

For a broader overview of all tax types in Japan, check out our Complete Guide to Taxes in Japan for Foreigners.

Understanding Your Tax Residency Status

Your tax obligations in Japan depend entirely on your residency classification. The National Tax Agency (NTA) divides taxpayers into three categories, each with different rules about what income gets taxed.

Permanent Resident taxpayers have either lived in Japan for five or more of the last ten years, or hold Japanese nationality. They are taxed on their worldwide income, regardless of where it is earned or received.

Non-Permanent Residents have lived in Japan for less than five of the past ten years and do not intend to stay permanently. They pay tax on Japan-source income plus any foreign-source income that is remitted (sent) to Japan.

Non-Residents have been in Japan for less than one year and are taxed only on income earned within Japan, at a flat rate of 20.42%.

Understanding which category you fall into is critical because it determines how much of your global income Japan can tax. Most foreign workers on standard work visas start as non-permanent residents and transition to permanent resident tax status after five years. For more on visa types and immigration requirements, see our dedicated guide.

Japan's Income Tax Brackets and Rates

Japan uses a progressive income tax system where higher earners pay a larger percentage. Here are the current national income tax brackets:

On top of the national income tax, you must also pay:

• Special Reconstruction Income Tax: A 2.1% surtax on your national income tax amount, in effect through 2037 to fund recovery from the 2011 earthquake and tsunami.
• Local Inhabitant's Tax (Juuminzei): A flat 10% of your taxable income, plus approximately JPY 5,000 per year in equalization charges. A forest environmental tax of JPY 1,000 per year was also introduced in 2024.

This means someone earning JPY 5,000,000 in taxable income would pay roughly 20% national tax plus 10% local tax, bringing the effective combined rate to around 30%. You can learn more about managing your finances in our Banking and Finance Guide for Foreigners.

Key Tax Deductions and Credits

Japan offers several deductions that can significantly reduce your tax burden. Knowing what you can claim is one of the best ways to lower your tax bill.

Employment Income Deduction: Salaried employees automatically receive a deduction based on their gross salary. For 2025, the minimum deduction increased to JPY 650,000, up from JPY 550,000 in previous years. This deduction scales up with income.

Basic Deduction: All taxpayers with total income of JPY 23.5 million or less receive a basic deduction of JPY 580,000 (increased from JPY 480,000 starting in 2025).

Social Insurance Premium Deduction: All social insurance premiums you pay, including health insurance, pension contributions, and employment insurance, are fully deductible. This is often the largest deduction for salaried workers.

Medical Expense Deduction: If your total medical expenses for the year exceed JPY 100,000 (or 5% of your income if lower), you can deduct the excess amount. Keep all receipts from hospitals, clinics, and pharmacies.

Spouse Deduction: If your spouse earns below a certain threshold (generally JPY 1,500,000 in employment income), you may qualify for a spouse deduction of up to JPY 380,000.

Foreign Tax Credit: If you pay income tax to another country on income that is also taxed in Japan, you can claim a foreign tax credit to avoid double taxation. This is particularly important for permanent residents who are taxed on worldwide income. For details on tax treaties, Living in Nihon's tax guide provides additional information.

Year-End Adjustment vs. Filing a Tax Return

Most salaried employees in Japan do not need to file a tax return. Instead, your employer handles your taxes through two mechanisms:

Monthly Withholding (Gensen Choshu): Your employer withholds estimated income tax from each paycheck throughout the year.

Year-End Adjustment (Nenmatsu Chosei): In December, your employer recalculates your actual tax liability based on your annual income and applicable deductions, then refunds any overpayment or collects any underpayment. You submit forms declaring your insurance premiums, dependents, and other deduction-eligible items to your employer.

However, you must file a tax return (Kakutei Shinkoku) if any of the following apply:

• Your annual salary exceeds JPY 20,000,000
• You have income from two or more employers
• You earn more than JPY 200,000 in side income (freelancing, investments, rental income)
• You are self-employed or a freelancer
• You want to claim medical expense deductions
• You received income from overseas sources
• You are leaving Japan permanently and need to settle your tax affairs

The tax filing period runs from mid-February to mid-March each year (for the previous calendar year's income). You can file at your local tax office, by mail, or online using the e-Tax system. For guidance on tax and social insurance when changing jobs, see the resources at For Work in Japan.

How to File Your Tax Return (Kakutei Shinkoku)

If you need to file a tax return, here is a step-by-step process:

Step 1: Gather Your Documents

• Withholding tax slip (Gensen Choshu Hyo) from your employer
• My Number card or notification card
• Bank account information for refunds
• Receipts for deductible expenses (medical, donations, etc.)
• Foreign income statements (if applicable)

Step 2: Choose Your Filing Method

• In person: Visit your local tax office (zeimusho) during filing season. Staff can help you complete the forms, and some offices have English-speaking assistants.
• Online via e-Tax: Use the NTA's online system with your My Number card and a card reader, or via smartphone with a My Number card that has an IC chip.
• By mail: Download forms from the NTA website, complete them, and mail to your tax office.

Step 3: Complete the Return Fill in your income, deductions, and calculate your tax. The NTA's online tool does most calculations automatically.

Step 4: Submit and Pay Submit by the deadline (usually March 15). If you owe additional tax, pay via bank transfer, at a convenience store, or via credit card. Refunds are typically deposited within one to two months.

For those who also earn side income, Ittenshoku's guide on tax filing for side jobs explains when filing becomes mandatory.

Resident Tax (Juuminzei) Explained

Separate from national income tax, every resident of Japan must pay local resident tax (juuminzei). This tax is based on your income from the previous year and is assessed by your municipal government.

Key points about resident tax:

• The rate is a flat 10% of taxable income (6% prefectural + 4% municipal) plus a per-capita levy of roughly JPY 5,000
• It is calculated based on your January 1 address — if you are registered as a resident on January 1, you owe resident tax for the entire year, even if you move or leave Japan afterward
• For employees, resident tax is typically deducted from your salary in 12 monthly installments starting in June
• Self-employed individuals pay in four installments (June, August, October, January)

One common surprise for foreigners: your first year in Japan, you will pay no resident tax because it is based on the previous year's income. But in your second year, payments begin — and if you leave Japan, you still owe the full year's resident tax if you were registered on January 1. Understanding these costs is key to managing your overall cost of living in Japan.

Taxes When Leaving Japan

If you plan to leave Japan permanently, there are important tax steps you must complete:

Before departure:

1. File a final tax return covering income earned up to your departure date, or
2. Appoint a tax agent (Nozei Kanrinin) — a trusted person in Japan who will handle your tax filing and payments after you leave. This must be registered at your local tax office before departure.

Resident tax settlement:

• If you were in Japan on January 1 of the current year, you owe the full year's resident tax
• Arrange to pay the remaining balance before leaving, or have your tax agent handle it
• Your employer may be able to deduct the remaining resident tax in a lump sum from your final paycheck

Pension refund (Lump-Sum Withdrawal Payment): While not technically a tax, many foreigners leaving Japan can claim a refund of pension contributions. Note that a 20.42% withholding tax applies to this refund. For more details, see our Complete Guide to Working in Japan.

Common Mistakes Foreigners Make with Japanese Taxes

Avoiding these pitfalls can save you money and stress:

Useful Resources and Tax Tools

Here are the most helpful resources for managing your taxes in Japan:

• NTA English Tax Information — Official filing guidance from Japan's National Tax Agency
• PWC Japan Tax Summary — Detailed professional overview of current tax rates
• Japan Tax Calculator — Free online calculator for estimating your tax
• Living in Nihon Tax Guide — Comprehensive guide for foreign residents
• For Work in Japan Tax & Insurance Guide — Tax and social insurance information for foreign workers
• Japan Remotely Tax System Guide — Expat-focused tax overview

Understanding Japan's income tax system takes some initial effort, but once you know the basics, it becomes manageable. Stay organized, keep your receipts, and do not hesitate to visit your local tax office for help — many have multilingual support during filing season. For a complete overview of all financial topics, visit our Banking and Finance Guide and our Daily Life Guide for more practical tips on living in Japan.