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Blue Tax Return (青色申告) in Japan: Step-by-Step Guide for Freelancers

Blue Tax Return (青色申告) in Japan: Step-by-Step Guide for Freelancers

If you're freelancing in Japan and not using the Blue Tax Return (青色申告), you're probably paying more tax than you need to.

This is one of the biggest “hidden advantages” in Japan’s tax system — but it’s also one of the most confusing if you’ve never done it before.

If you're new to freelance taxes in general, start here: Resident tax in Japan for freelancers explained simply. This will help you understand where Blue Return fits in.

In this guide, I’ll show you exactly what Blue Return is, how to set it up, what you actually need to do, and how it reduces your tax in real life.

What is Blue Tax Return (青色申告)?

青色申告 (あおいろしんこく) is a special tax filing system for freelancers and business owners in Japan.

It allows you to:

  • Reduce your taxable income
  • Track business finances properly
  • Access additional deductions not available with standard filing

The biggest benefit:

Up to ¥650,000 deduction from your taxable income

That directly reduces both your income tax and your resident tax.

Why this matters (real impact)

Let’s say:

  • You earn ¥5,000,000
  • You qualify for the ¥650,000 deduction

Your taxable income drops significantly.

That means:

  • Lower income tax
  • Lower resident tax the following year

If you’ve ever wondered why your resident tax is so high, this is one of the key tools to reduce it.

Who can use Blue Return?

You can use it if you are:

  • A freelancer (個人事業主)
  • Running a small business
  • Self-employed in Japan

You must apply in advance to use it.

Step-by-step: how to start Blue Return

Step 1 — Submit the application

You need to submit:

  • 青色申告承認申請書 (application form)

Submit it to your local tax office (税務署).

Deadline:

  • Usually within 2 months of starting your business
  • Or by March 15 for existing businesses

Step 2 — Keep proper accounting records

This is the “cost” of Blue Return.

You need:

  • Income records
  • Expense records
  • Basic bookkeeping (double-entry for full benefits)

Most people use software for this.

Step 3 — File your tax return (確定申告)

At the end of the year, you submit your tax return using Blue Return.

If done correctly, you receive the deduction.

What you actually need to do day-to-day

In real life, Blue Return means:

  • Keep receipts
  • Track income and expenses monthly
  • Use accounting software or a spreadsheet

That’s it.

You don’t need to be an accountant — just consistent.

What to say (Japanese phrases)

At the tax office:

I want to apply for Blue Tax Return.
「青色申告を申請したいです。」

Where can I submit this form?
「この申請書はどこに提出すればいいですか？」

I am a freelancer.
「私は個人事業主です。」

Can you explain simply?
「やさしい日本語で説明してもらえますか？」

Japanese keywords to search

  • 青色申告 やり方 – how to do Blue Return
  • 青色申告 承認申請書 – application form
  • 個人事業主 税金 日本 – freelancer taxes Japan
  • 確定申告 青色申告 – tax return blue filing

Common mistakes

Not applying on time

If you miss the deadline, you cannot use Blue Return for that year.

Thinking it’s too complicated

It’s simpler than it looks, especially with software.

Not keeping records properly

No records = no deduction.

Mixing personal and business expenses

This creates problems later.

Edge cases

What if you already started freelancing?

You can still apply, but timing matters. Check deadlines.

What if you don’t use accounting software?

You can still do it manually, but it’s harder.

What if you’re part-time freelance?

You can still use Blue Return if you qualify.

Checklist

  • Submit Blue Return application
  • Track income and expenses
  • Keep receipts
  • Use accounting software if possible
  • File tax return correctly

Official source

National Tax Agency – Blue Return System

Key takeaway

If you’re freelancing in Japan, Blue Return is one of the simplest ways to reduce your taxes legally.

It requires a bit of organization, but the savings are significant.

If you plan to stay in Japan and freelance, you should almost always be using it.

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