Taxes · 確定申告 · kakutei shinkoku
Filing a tax return in Japan (確定申告) with e-Tax
Most employees never file one: the employer settles the year’s tax for them. But with a side job or freelance work, a salary from a company abroad, large medical bills, a housing loan or a job you left during the year, you file the final tax return yourself. Who must file, who can get money back, the deadlines, e-Tax with a My Number Card step by step — with the NTA’s manuals in English and five other languages — penalties and what to do when you leave Japan.
Checked against the National Tax Agency website on October 7, 2026 · Year-end adjustment · Family and dependents
In short
What the final tax return is
Who files
Who must file, and who can get money back
Deadlines
When to file and pay
| What | When | If you miss it |
|---|---|---|
| Return for 2025 income | February 16 to March 16, 2026 (passed) | you can still file late — with a penalty and interest |
| Return for 2026 income | normally February 16 to March 15, 2027 — the NTA will announce the exact dates | late-filing penalty of 5% to 30% of the tax |
| Paying the tax | by the last filing day; with direct debit, later (for 2025 income: April 23, 2026) | interest: 2.8% a year for the first 2 months, then 9.1% (2026 rates) |
| Refund-only return | within 5 years from January 1 of the next year (2025 income: until December 31, 2030) | the right to the refund expires |
| Return when leaving Japan without a tax agent (準確定申告) | by the day you leave | penalties and interest; the debt can be pursued abroad |
What to prepare
Documents and data for your return
e-Tax step by step
Filing from home with your My Number Card
The return is made in Japanese. The easiest way is the NTA website: it asks questions step by step and calculates the tax. The site itself has no English version, but the NTA publishes step-by-step manuals for it in other languages.
Manuals in your language. You can create a Final Tax Return at Home! — the NTA’s English guide to the Preparation Corner, screen by screen, for a salary from one employer without a year-end adjustment, medical expenses, donations (including the hometown tax donation) and refunds. The same manual in Simplified and Traditional Chinese, Vietnamese, Portuguese and Nepali. For the rules in English: the NTA’s 2025 Income Tax Guide. These manuals cover 2025 returns (filed in 2026); new ones usually come out before the filing season.
- Get your phone and card readyA smartphone that can read the My Number Card, with the Mynaportal App (マイナポータルアプリ) — or a computer with a card reader. Remember both card passwords: the 4-digit one for logging in and the 6–16 character one for the electronic signature.
- Final Tax Return Preparation Corner (確定申告書等作成コーナー)Open the Final Tax Return Preparation Corner on the NTA website and press Start Creation (作成開始).
- How you submitChoose e-Tax (My Number Card method, マイナンバーカード方式), not printing on paper.
- Income tax (所得税)Choose the income tax return and the year. Some data — insurance, hometown tax donations — can be imported automatically (マイナポータル連携).
- Income (収入・所得の入力)For salary, copy three numbers from your withholding record: 支払金額 (salary), 源泉徴収税額 (tax withheld), 社会保険料等の金額 (social insurance). Side work without an employment contract goes in as miscellaneous income (雑所得) or business income (事業所得).
- Deductions (所得控除の入力)Medical expenses, donations, insurance, your spouse and dependents.
- Refund or payment (還付・納付)Enter the bank, branch and account for the refund, or choose how you will pay.
- Send (送信)Check the result, hold the card to your phone, enter the signature password and send. Save the file of your return.
The main lines of the return
The website fills in the form for you, but it helps to know what is where. Blank forms and instructions are on the NTA income tax return page. Sheet 1 (第一表) has the totals, sheet 2 (第二表) the details.
| Line | What it is |
|---|---|
| 収入金額等 → 給与 | Gross salary for the year (支払金額 on the withholding record) |
| 所得金額等 → 給与 / 雑 | Salary after the deduction for employment income; side income after expenses |
| 所得から差し引かれる金額 | Deductions: 社会保険料控除 (social insurance), 生命保険料控除 (life insurance), 配偶者(特別)控除 (spouse), 扶養控除 (dependents), 基礎控除 (basic exemption), 医療費控除 (medical), 寄附金控除 (donations) |
| 源泉徴収税額 | Tax your employer already withheld |
| 申告納税額 / 還付される税金 | How much you pay / how much comes back |
| 還付される税金の受取場所 | Bank, branch and account number for the refund |
| 第二表: 所得の内訳 | Who paid you, how much, and how much tax they withheld |
| 第二表: 住民税・事業税に関する事項 | Data for resident tax. Here you choose how to pay resident tax on income that is not salary (side work without an employment contract, freelance): with your salary (特別徴収) or yourself (自分で納付) |
Without a My Number Card, print the return on the same website and send it by mail or take it to the tax office for your address.
Side jobs and freelancing
The ¥200,000 rule and resident tax
Linked to your visa.
- A side job is not always allowed on a work, Dependent or Student visa: you often need permission (資格外活動許可), and students and dependents may work up to 28 hours a week. Check your status of residence first, then think about taxes.
Late or not filed
Penalties and interest
| Situation | Penalty for not filing on time (無申告加算税) |
|---|---|
| You filed late yourself, before any notice of an audit | 5% of the tax |
| After a notice of an audit | 10% on the first ¥500,000 of tax, 15% on the part up to ¥3,000,000, 25% on the part above |
| After an audit | 15%, 20% and 30% on the same parts |
| Up to 1 month late, all tax paid by the due date, no such penalty in the last 5 years | no penalty |
On top of the penalty, late payment adds interest (延滞税): in 2026, 2.8% a year for the first 2 months after the due date and 9.1% after that. If you cannot pay at once, ask the tax office about paying in installments (換価の猶予, up to 1 year).
Linked to your visa.
- For permanent residency you need a certificate from the tax office that you owe nothing (納税証明書(その3)) for five national taxes. Paying late counts against you even if the debt is settled by the day you apply.
If you leave Japan
File before you leave, or through a tax agent
The NTA in English: Procedures before departing from Japan.
If you have a family
Spouse, children, parents: what changes
A dependent for tax and a dependent for health insurance are two different things with different income limits. All the rules for families: Family and dependents.
What next
Your next step
FAQ
Tax return questions
Can’t find your question? Write to us — a real person replies.
Sources
Where this information comes from
Rates, limits and deadlines on this page were checked against the official websites of the National Tax Agency and city offices on October 7, 2026. Amounts are in Japanese yen. When a rule changes we update the page and the date above.
- National Tax Agency — You can create a Final Tax Return at Home! (English manual for the Preparation Corner, 2025 returns, PDF)
- National Tax Agency — Preparation Corner manuals for foreign residents: English, Chinese, Vietnamese, Portuguese, Nepali (外国人の方へ)
- National Tax Agency — 2025 Income Tax and Special Income Tax for Reconstruction Guide (English)
- National Tax Agency — Final tax return (No.12011, English)
- National Tax Agency — Wage earners who must file a final tax return (No.12018, English)
- National Tax Agency — Filing returns for refund (No.12009, English)
- National Tax Agency — Procedures before departing from Japan (No.12021, English)
- National Tax Agency — Final Tax Return Preparation Corner (確定申告書等作成コーナー)
- National Tax Agency — e-Tax with a My Number Card: devices, app and passwords
- National Tax Agency — filing season page: 2025 income deadlines (確定申告特集)
- National Tax Agency — income tax return forms and instructions (確定申告書等の様式・手引き等)
- National Tax Agency — penalty for not filing on time (No.2024)
- National Tax Agency — Japan-source income: salary for work done in Japan (No.2878)
- National Tax Agency — medical expense deduction (No.1120)
- National Tax Agency — hometown tax donation and the one-stop rule (No.1155)
- National Tax Agency — tax agent when you leave Japan (No.1923)
This page is general information, not tax advice. Your city office and the tax office decide your actual tax. For a complex case — income from abroad, a business, leaving Japan — talk to a licensed tax accountant (税理士, zeirishi).