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届Chapter 04 · Paperwork

Your Japan tax filing

Quick quiz to check if you owe a tax return (kakutei shinkoku). If yes, personalized checklist + AI explanation field by field.

Worked in Japan this year? Check if you need to file. Key deadline: Feb 16 → Mar 15 for the tax return (kakutei shinkoku). Source: National Tax Agency (nta.go.jp).

Verified by Keigo · June 25, 2026Source: www.nta.go.jp ↗

Start here · 60 seconds

Do I need to file?

Answer a few questions to find out if you need to file a Japanese tax return (kakutei shinkoku).

Tax Form Field Explainer

Enter any field name from the tax return form and AI will explain what to write.

Already filed your 2025 tax return (kakutei shinkoku)?

This tool provides general guidance. For your specific situation, consult a licensed tax accountant (zeirishi).

Related tools

Japan Tax Filing for Foreigners (確定申告)

How to file income tax in Japan as a foreign resident — deductions, deadlines and a clear step-by-step guide.

You need to file a tax return (kakutei shinkoku)

Filing is not required

Reasons

Applicable Deductions

Retake Quiz

e.g., income amount, income deductions, withholding tax amount...

What to Write

Common Mistakes

Tips

You just saved roughly 3 hours of paperwork and potentially ¥10,000+ in late-filing penalties (delinquency tax + reconstruction surtax). Nothing more for you this fiscal year — see you for next year's calendar.

Undo

Probably not for you yet

Your account is less than 6 months old. Even if your situation requires a tax return (kakutei shinkoku) eventually, the filing window doesn't open until next February 16. Bookmark this page and come back then — we'll remember where you left off.

Quick 60-second quiz to see if you owe a tax return (kakutei shinkoku) this year.

Kakutei Shinkoku (Tax Return)

Annual income tax return. Required if you're self-employed, earned over ¥20M, or have side income over ¥200K.

Resident Tax (Juuminzei)

Municipal tax based on previous year's income. Notification arrives in June, paid in 4 installments.

Handled by your employer in November–December. Submit insurance certificates and dependent info.

Departure Tax Filing (Shukkokuji no Kakutei Shinkoku)

If leaving Japan permanently, file within 4 months before departure or appoint a tax representative.

Key tax deadlines for residents in Japan. Missing a deadline can result in penalties.

Source: National Tax Agency —

December tax reconciliation done by your employer — a kind of mini-tax-return.