Japanese Income Tax Guide for Foreign Workers (2025)
Short, clear overview of how Japanese income tax works in 2025—who must file, key deadlines, what changed this year, common deductions and credits, resident tax basics, and practical steps for employees, freelancers, and people leaving Japan.
What changed for 2025
Here are the headline changes foreign workers should know for 2025:
- Basic exemption increased to ¥580,000 (up from ¥480,000). Applies to 2025 income (the return you file in early 2026).
- Minimum employment income deduction increased to ¥650,000 for salaried employees, also starting with 2025 income.
- New high-income top-up rule: for very high earners, an additional calculation can apply from 2025 (illustrative rule in Ministry of Finance materials). This is niche, but if your base income exceeds the threshold in the MOF note, ask a tax pro.
- 2025 filing season dates for 2024 income: file between February 17 and March 17, 2025 (because March 15 fell on a Saturday in 2025). You can file by smartphone or computer via e-Tax.
- The Special Reconstruction Income Tax (2.1% added on top of national income tax) continues through December 31, 2037.
Tip: If your employer handles year-end adjustment (nenmatsu chōsei), you often don’t need to file, but many foreign workers still file to claim extra deductions or refunds.
Who pays income tax in Japan
Japan taxes you mainly based on tax residency, not on visa type. There are three buckets:
| Status | Typical situation | What Japan taxes |
|---|---|---|
| Non-resident | Staying under ~1 year with no “domicile” | Japanese-source income only; often via withholding. |
| Non-permanent resident | Not Japanese; in Japan ≤ 5 years within the last 10 | Worldwide income only to the extent paid in Japan or remitted to Japan, plus all Japan-source income. |
| Resident (other than non-permanent) | Long-term residents; typically > 5 of last 10 years | Worldwide income. |
The National Tax Agency (NTA) explains how “non-permanent resident” status works and how foreign tax credit rules differ for this group.
How Japanese income tax is built
Japanese individual tax comes in layers:
- National income tax: progressive rates from 5% to 45%.
- Special Reconstruction Income Tax: 2.1% of the national tax (effectively national tax × 102.1%) through 2037.
- Resident (inhabitant) tax: local tax paid to your city/prefecture the year after you earn the income; it’s generally 10% of taxable income (≈6% municipal + 4% prefectural) plus small per-capita amounts. Payroll employees pay it in 12 monthly installments June–May; otherwise it’s four installments (June/Aug/Oct/Dec).
You’ll also see withholding at source on your salary, and most employees get squared up via year-end adjustment in December.
National tax rates at a glance
Japan’s progressive national rates (unchanged in 2025) apply to taxable income after deductions. The official NTA income tax guide provides the rate schedule and the “quick calculation” (速算表) used in practice.
| Taxable income band (¥) | National rate |
|---|---|
| 0 – 1,950,000 | 5% |
| 1,950,001 – 3,300,000 | 10% |
| 3,300,001 – 6,950,000 | 20% |
| 6,950,001 – 9,000,000 | 23% |
| 9,000,001 – 18,000,000 | 33% |
| 18,000,001 – 40,000,000 | 40% |
| 40,000,001+ | 45% |
Remember to multiply the national tax by 102.1% for the Special Reconstruction Income Tax.
What counts as income in Japan
Japan categorizes income into 10 types (employment, business, real estate, capital gains, dividends, etc.). The Ministry of Finance provides a diagram-style overview of the structure used for individuals.
Deductions and credits you can actually use
Below are the big ones most foreign workers use. The NTA’s English “List of Deductions/Credits” is a great index for the details and forms.
| Category | Typical amount or rule | Notes |
|---|---|---|
| Basic exemption | ¥480,000 (2024 income) → ¥580,000 (2025 income onward) | Applies to all taxpayers meeting income limits. |
| Employment income deduction | Formula by salary band; minimum ¥650,000 from 2025 (¥550,000 through 2024) | You cannot deduct actual commuting/meal costs separately. |
| Social insurance premiums | Fully deductible | Covers health, pension, unemployment. |
| Life/earthquake insurance | Capped deductions | Small but useful; limits vary. |
| Spouse & dependent deductions | Income-tested | Read the NTA notes if your family lives abroad. |
| Medical expense deduction | Above threshold | Keep receipts; often worth filing yourself. |
| Housing loan credit | If using a qualifying mortgage | Claimed at year-end adjustment or on return. |
| Foreign tax credit | Formula-based cap | Prevents double taxation for residents. |
Hometown tax (furusato nozei) tip: donations to local governments can reduce next year’s resident tax (and part of national tax) beyond a ¥2,000 co-pay, within limits. Municipal guidance confirms the mechanism.
Example: salaried employee (illustrative)
You earn ¥6,000,000 in 2024 at one employer.
- Employment income deduction (2024 rules): for ¥3.6–6.6M band, employment income = A×0.8 − 440,000, where A is salary. So:
A×0.8 = 6,000,000×0.8 = 4,800,000; minus 440,000 = ¥4,360,000 (employment income). - Basic exemption (2024): ¥480,000 → taxable income (national) ≈ ¥3,880,000.
- National tax (20% band using NTA quick calc): 20%×3,880,000 − 427,500 ≈ ¥348,500; then ×102.1% for the reconstruction tax ≈ ¥356,800. (Rounded in practice by NTA rules.)
- Resident tax (following year): roughly 10% of your local-tax taxable income (rules differ slightly from national), plus small per-capita amounts; most people see close to ~10% effective. Paid June–May via payroll or in four installments if self-paid.
These are illustrative only—actual outcomes depend on your deductions/credits (social insurance, dependents, donations, etc.).
Do you need to file or will your employer handle it?
- Most employees with one employer are finished by year-end adjustment (your company reconciles your payroll withholding in December).
- You must file a final return if any of the NTA triggers apply—for example: your salary exceeds ¥20 million, you have multiple employers, or side income over ¥200,000.
- General filing window (for the prior year): Feb 16 – Mar 15; for 2025, the NTA announced the deadline as March 17, 2025 due to the weekend. e-Tax supports PC and smartphone filing.
Resident (inhabitant) tax, explained simply
- Who owes it: whoever lived in a municipality on January 1 of the year. If you were on that city’s register on Jan 1, you’ll owe that city’s resident tax in the following fiscal year—even if you move later.
- How much: usually 10% of taxable income (6% city + 4% prefecture) plus per-capita amounts (commonly around ¥5,000 including the forest environmental tax—exact figures vary by city).
- How you pay:
- Employees: 12 payroll deductions (June–May).
- Others: four self-paid installments: end of June, August, October, December.
Freelancers, side-jobbers, and “blue returns”
If you’re self-employed (or running a side business), consider the Blue Return (aoiro shinkoku) for better expense treatment and potential special deductions—especially if you e-file and keep electronic books. See the NTA’s English entry on the Blue return system for eligibility and paperwork.
Tax treaties and the “183-day rule” (short-term stays)
Japan has many tax treaties. If your home country has one, you may be able to avoid Japan tax on salary for short-term assignments when all treaty conditions (not just “183 days”) are met and the formal Application Form for Income Tax Convention process is followed.
For non-residents claiming treaty reductions at withholding, the NTA explains how to submit the application through the payer (employer) before payment, or alternatively how to claim a refund later.
Counting days can be tricky (calendar year vs rolling 12-month bases vary by treaty). Professional bulletins illustrate common pitfalls.
Leaving Japan during or after the year
If you will leave Japan and lose your domicile/residence:
- Appoint a tax agent in Japan by filing the Notification of Tax Agent before departure; then your due date remains the usual March 15 of the following year. If you don’t appoint one, you must file and pay before you leave.
- The NTA also outlines procedures before departing and when a quasi-final return may be required.
- If you take the pension lump-sum withdrawal after leaving, 20.42% is withheld and you can usually get a refund by filing via your tax agent with the entitlement notice from the Pension Service.
Resident tax tip: your Jan 1 registration controls next year’s resident tax. People who depart before Jan 1 of a year typically won’t owe resident tax for that future year; those who are still registered on Jan 1 will. Confirm with your city hall.
Filing step-by-step (employee edition)
- Collect docs: Gensenchōshūhyō (withholding slip), insurance/pension premium statements, mortgage certificate (if any), receipts for medical expenses, donation receipts (furusato nozei), and any side-income records. (See the NTA deductions list.)
- Decide if you must file: follow the NTA triggers (multiple employers, side income over ¥200k, salary over ¥20m, etc.).
- Choose a method:
- No return needed? Your employer’s year-end adjustment will finish things.
- File a return? Use e-Tax (PC or smartphone) and file by the NTA’s stated deadline (March 17, 2025 for the 2024 year).
- Resident tax: choose “special collection from salary” or self-pay when filing, depending on your situation; your city hall will bill accordingly (June–May payroll deduction or four installments).
Quick calculator table you’ll actually use
Here’s a compact “what affects my bill” table to sense-check your numbers before you file.
| Area | What you’ll plug in | Where to find it |
|---|---|---|
| Employment income | Apply the NTA employment income deduction formula to your gross salary | Your year-end slip; NTA’s calculation table. |
| Deductions | Basic exemption, social insurance, dependents, insurance, medical, donations | Receipts/certificates; NTA deduction index. |
| National tax | Use the rate band for your taxable income | NTA income tax guide rate schedule. |
| Reconstruction surtax | Multiply national tax by 102.1% | NTA guidance on the surtax period and rate. |
| Resident tax next year | Roughly 10% + per-capita; paid via payroll or 4 bills | City/prefecture guidance (example shown). |
Common expat scenarios (and answers)
“My company did the year-end adjustment. Should I still file?”
If you have side income, multiple employers, large medical expenses, or you made donations and want to optimize, filing can lower your bill or produce a refund. See the official “who must file” list.
“I’m on short business trips to Japan; do I owe tax?”
Maybe not—if your country has a tax treaty with Japan and all the short-term stay conditions are satisfied and you process the treaty application correctly through the payer. Don’t rely on “under 183 days” alone.
“Do I pay resident tax if I move cities?”
Resident tax is owed to where you lived on January 1. If you moved mid-year, the city where you were on Jan 1 bills you the following year.
“I’m leaving Japan in autumn. What should I do?”
File the tax agent notification before you go; otherwise, you must file and pay before departure. If you withdraw pension after leaving, consider a refund filing for the withheld 20.42%.
Glossary
- Year-end adjustment (nenmatsu chōsei): Employer’s December reconciliation of your salary tax. Many employees won’t need to file a personal return if this is done.
- e-Tax: Japan’s online filing system. In 2025, the NTA promoted smartphone filing and set the deadline for 2024 returns as March 17, 2025.
- Resident tax (jūminzei / inhabitant tax): Local tax based on last year’s income, collected June–May or in 4 installments. Rate ≈ 10% plus per-capita.
- Special Reconstruction Income Tax: 2.1% on national income tax through 2037.
- Foreign tax credit: Offsets Japan tax on foreign-taxed income for residents within a formula cap.
Practical internal resources to keep you moving
- Getting started with banking: Opening a Bank Account in Japan and Mobile Payment and Banking Apps in Japan
- Building your credit life: How to Get a Credit Card in Japan as a Foreigner and Ultimate Japan Finance Guide for Expats – Banking, Taxes, Investing
- Immigration timing and trips: Visa Application Timeline for Japan, Re-Entry Permit in Japan, and Checking Your Japan Visa Status Online
- Work and status planning: Choosing the Right Work Visa in Japan – Specialist vs Engineer vs Instructor and Volunteering in Japan – Visa Considerations for Unpaid Work
Filing season 2025 checklist
- Confirm whether your employer’s year-end adjustment fully covers you.
- Round up your deduction documents (social insurance, dependents, donations, medical expenses).
- File by March 17, 2025 if you need to—e-Tax by smartphone or PC is fine.
- Budget for next year’s resident tax (≈10%) that will start from June.
- If leaving Japan, appoint a tax agent before you go and note pension withdrawal refund options.
Frequently asked technical points (with sources)
Are the 2025 higher basic exemption and minimum salary deduction definitely in effect?
Yes—NTA’s FY2025 reform pages confirm the basic exemption 580k and employment deduction minimum 650k apply from 2025 income onward.
Do national rate brackets change in 2025?
No change to the 5%–45% brackets in the NTA’s guide; apply the 102.1% reconstruction surtax.
How is resident tax calculated and paid?
Your city calculates it based on last year’s income; the split is 6% municipal + 4% prefectural (plus per-capita). Employees pay June–May; others pay June/Aug/Oct/Dec.
Who must file even with year-end adjustment?
The NTA lists triggers such as salary > ¥20m, side income > ¥200k, and multiple sources of salary.
Treaty relief for short-term assignments
Possible if all the treaty conditions are met and you submit the Income Tax Convention application via the payer (or later claim a refund).
Final notes
This guide focuses on 2025-relevant rules and dates for foreign workers. For your precise situation, always cross-check the NTA’s English pages and your city hall’s resident tax guidance:
- NTA Income Tax portal and “Information about Income Tax” index.
- 2024 Income Tax filing leaflet for 2025 deadlines and e-Tax details.
- Local resident tax explainer (example: Matsudo City) for rates and payment schedules.
Related reads on Japan Handbook: Opening a Bank Account in Japan, Ultimate Japan Finance Guide for Expats, Visa Application Timeline in Japan, Re-Entry Permit in Japan.
