Legal framework in Japan
The Act on Electronic Signatures and Certification Business (2001) establishes that a document is presumed authentic when the electronic signature is performed by the principal. Certified signatures have the same legal value as handwritten ones.
Legal framework
Act on Electronic Signatures and Certification Business
How the legal framework evolved in Japan
2001
The Act on Electronic Signatures and Certification Business (Act 102 of 2000) takes effect.
2020
The government launches the campaign to remove hanko seal requirements from administrative procedures.
2021
The Digital Agency is created, leading the country's digitization.
Types of electronic signature in Japan
Electronic signature
The Act on Electronic Signatures and Certification Business (2000) recognizes electronic signatures. A document whose e-signature is attributable to the signer enjoys a presumption of authenticity (art. 3).
Electronic signature with accredited certificate
Issued by accredited certification providers. It reinforces the legal presumption for high-value documents.
Electronic seal (hanko alternative)
Since the 2020-2021 administrative reform, most procedures no longer require the personal seal (hanko), accelerating e-signature adoption.
What makes a signature valid in Japan?
The signature must reliably identify the signer and reflect their intent. Firmiu accompanies every signature with its audit trail: IP, device, location and verification.
Which documents can you sign in Japan?
Can be signed electronically
- Commercial and service contracts
- Lease agreements
- Employment contracts
- Non-disclosure agreements (NDAs)
- Quotes and purchase orders
- Private corporate documentation
Usually require a notary or handwritten signature
- Holographic wills (must be handwritten)
- Certain real-estate contracts with specific document-delivery requirements
- Acts before a notary
- Civil-status documents
These lists are indicative: the document type and applicable law determine each case.
How to sign documents in Japan
Upload your PDF
Upload the document and enter the name and email of the person who must sign.
The signer receives a link
They get an email with a unique link and a verification code.
Signed document
The PDF is signed with its audit trail, ready to download.
Frequently asked questions
- Are electronic signatures legal in Japan?
- Yes. The 2001 Act grants them validity and a presumption of authenticity.
- Are they equal to a handwritten signature?
- A certified electronic signature is, under Japanese law.
- Do they work for private contracts?
- Yes, for most agreements between private parties.
- Do electronic signatures replace the hanko in Japan?
- For the vast majority of private contracts, yes. Since 2020-2021 the government removed seal requirements from nearly all procedures, and companies migrated massively to e-signatures.
- What presumption does Japanese law grant?
- Article 3 of the act presumes an electronically signed document authentic when the signature is attributable to the signer — the role of Firmiu's audit trail.
- Can I sign lease agreements electronically?
- Yes. Recent reforms digitized even real-estate explanatory documents, and leases can be signed electronically.
- Is an online-signed contract valid before Japanese courts?
- Yes. The e-signature act and the Code of Civil Procedure admit electronic documents as evidence.
Official sources
The information on this page is general in nature and does not constitute legal advice. The validity of an electronic signature depends on the applicable legislation and the document type; for specific cases, consult a legal professional.
Guide reviewed and updated: July 2026.
Electronic signatures by profession
Guides for the industries that sign the most documents in Japan.
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Electronic signature in other countries
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