Starting a company in Japan sounds straightforward until you see the bill. Most founders budget for the obvious expenses — office rent, equipment, initial inventory — but overlook the mandatory government fees required just to bring a legal entity into existence.
Under the Japanese Companies Act (会社法), forming a Kabushiki Kaisha (KK) or Godo Kaisha (GK) involves multiple layers of fees. Registration and license tax (登録免許税) alone starts at ¥150,000 for a KK and ¥60,000 for a GK, as prescribed by the Registration and License Tax Act (登録免許税法). Add notarization of articles of incorporation (定款認証) at approximately ¥50,000, revenue stamps, and certified document fees, and the total can exceed ¥250,000 before you hire any professional help.
The problem is compounded when founders rely on rough estimates found online. Outdated blog posts, conflicting advice, and currency confusion create a gap between expectation and reality that can derail launch timelines.
MmowW Scribe's Company Formation Cost Calculator eliminates guesswork. Input your company type, capital amount, and prefecture, and the tool returns an itemized breakdown of every mandatory fee — with references to the specific laws that require them.
No signup. No hidden charges. Just accurate numbers drawn from current Japanese regulatory requirements.
Use our free tool to check your compliance instantly.
Try it free →Tech startup founder from the US: Kenji is a dual-national planning a SaaS company in Tokyo. He assumed formation would cost around ¥100,000 based on a 2019 blog post. The calculator showed his KK formation would actually require ¥202,000 in mandatory fees alone — registration tax (¥150,000), notary authentication (¥50,000), and certified copies (¥2,000). He adjusted his seed budget accordingly.
Restaurant owner expanding to a corporate entity: Mei runs a successful ramen shop as a sole proprietor and wants to incorporate as a GK for liability protection. The calculator confirmed her total mandatory costs at approximately ¥100,000 — significantly less than the KK route — helping her choose the right entity type for her situation.
Consulting firm with ¥10 million capital: A management consulting team plans to incorporate with ¥10,000,000 in capital. Since 0.7% of ¥10M is ¥70,000, which is below the ¥150,000 minimum for KK registration tax, the calculator correctly applies the minimum. No manual math errors.
Q: Does the calculator include professional service fees like Gyoseishoshi or shiho-shoshi (司法書士) fees?
A: The calculator focuses on mandatory government fees — registration tax, notary fees, stamps, and certified copies. Professional service fees vary by provider and are shown separately if applicable.
Q: Are the costs different for foreign nationals forming a company in Japan?
A: The mandatory government fees are identical regardless of nationality. The Companies Act does not impose additional formation fees on foreign founders. However, additional documentation (such as notarized affidavits from your home country) may involve separate costs.
Q: How often are the fee amounts updated?
A: The calculator reflects current fee schedules. When the Japanese government revises registration tax rates or notary fee structures, MmowW updates the calculator accordingly.
Get your itemized company formation cost estimate in under 60 seconds:
Use the Company Formation Cost Calculator →
No account needed. No email required. Just accurate numbers.
Once you know the costs, the next step is actually filing. MmowW Scribe guides you through every stage of company formation in Japan — from drafting your articles of incorporation to submitting your registration at the Legal Affairs Bureau.
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