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jp-tax-return

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Use when asked 確定申告のやり方, do I need to file a tax return in Japan, how do I claim medical expense deduction, ふるさと納税の確定申告, 副業の確定申告, how to file with e-Tax, or 日本报税怎么弄. Produces whether the person must or should file, the income and deductions to declare, a step-by-step filing plan with e-Tax or on paper, the documents to gather, and the deadlines and payment options to confirm with the National Tax Agency.

plugins/pm-japan/skills/jp-tax-return/SKILL.md

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Nov 8, 2026
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# Japan Tax Return (確定申告)

Most employees in Japan never file a return because their employer settles tax through year-end adjustment. But anyone with side income, freelance work, two employers, large medical bills, a new housing loan or ふるさと納税 beyond the one-stop limit may have to, or would get money back by doing so. This skill decides whether the person needs to file, and walks them through it.

Write in Japanese unless the person asks for English or Chinese. Thresholds, forms and the filing period are set by the National Tax Agency (国税庁) and change; mark every figure to confirm on nta.go.jp. This is information, not tax advice; for business accounts, blue returns or inheritance, suggest a 税理士.

## Required Inputs

Ask for these if not provided:
- **Income**: salary (from the 源泉徴収票), side or freelance income and expenses, pensions, investment income outside NISA, rent
- **Employers**: how many, and whether year-end adjustment was done
- **Deductions to claim**: medical expenses, ふるさと納税, housing loan (first year), donations, insurance not claimed at work
- **Tools**: マイナンバーカード and a smartphone or card reader for e-Tax, or paper
- **Last year**: whether they filed, and as blue (青色) or white (白色) for business income
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