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Tax Filing Preparation Guide

Essential preparation guide for Japan's annual tax filing (確定申告) with deadlines, checklists, and tips.

Last updated: January 10, 2026

For general reference only. Consult a tax professional for individual advice. Last verified: January 10, 2026 · Source: National Tax Agency

2026 Japan Tax Filing Deadlines Calendar | Denpyo

Key 2026 Japan tax filing deadlines: e-Tax opens Jan 5, income tax runs Feb 16 – Mar 16, consumption tax due Mar 31, plus extension rules and penalty information.

Tax Filing Document Checklist Japan [2026 Edition]

Complete checklist of documents required to file taxes in Japan: My Number, income slips, deduction certificates, receipts and blue return ledgers for 2026.

Blue vs White Return Comparison — Which Should You File?

Compare 青色申告 vs 白色申告: requirements, the ¥650,000 blue return deduction, bookkeeping burden, benefits and which filing type saves more for your situation.

Electronic Record Keeping Law (電子帳簿保存法) Guide 2026

Understand Japan's Electronic Record Keeping Law: what it requires, scanner rules, electronic transaction retention, timestamps and how to stay compliant in 2026.

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Frequently Asked Questions

The 2026 tax filing period is from February 16, 2026 (Monday) to March 16, 2026 (Monday). Refund filings are accepted from January 1. Late filing may result in additional taxes and penalties.
Blue tax returns offer up to 650,000 yen in deductions but require double-entry bookkeeping. White returns have simpler requirements but no special deductions. Choose based on your business scale and accounting capacity.
Using e-Tax qualifies you for the full 650,000 yen blue return deduction (paper filing only gets 550,000 yen). Refunds are processed faster, you can file 24/7, and many attachments can be omitted.
Basic requirements include My Number Card (or notification card + ID), withholding tax certificates, receipts, and bank account information. Blue filers also need account books and financial statements. See our document checklist for details.
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