Original Documents, Certified Copies, Extracts, Official Copies, and Duplicates in Japan Explained
Original, Certified Copy, Extract, Official Copy, Extract Official Copy, and Duplicate
Basic Document Terms You Should Know Before Submission
In immigration procedures, government filings, contracts, inheritance matters, and other administrative procedures in Japan, you may be asked to submit an “original,” a “certified copy,” an “extract,” an “official copy,” or a “duplicate.”
These terms look similar, but they do not always mean the same thing. If you misunderstand what the submitting authority requires, you may need to resubmit documents or provide additional explanations.
This article explains the basic differences in a practical way, especially for administrative and immigration-related procedures in Japan.
Quick Summary
- Original means the document first created by the person or authority that issued it.
- Certified copy / complete copy means a document that reproduces the entire content of the original.
- Extract means a document that reproduces only part of the original.
- Official copy means a document prepared so that it has the same legal effect as the original under a specific system.
- Extract official copy means an official copy prepared for only part of the original.
- Duplicate means another document with the same content, often prepared for filing, service, retention, or reference purposes.
Comparison Table
| Term | Basic meaning | Practical point |
|---|---|---|
| Original | The original document first created by the issuer or creator | This is the base document. It is generally treated as the most important version. |
| Certified copy / complete copy | A document that reproduces the entire content of the original | It shows the full content. If the authority needs the full document, an extract may not be enough. |
| Extract | A document that reproduces only part of the original | It is useful when only the relevant part is needed, but it may be insufficient if the full content is required. |
| Official copy | A document prepared to have the same legal effect as the original under a specific system | This is not merely a photocopy. Its legal effect matters. |
| Extract official copy | An official copy prepared for only part of the original | It does not reproduce the full original, but the extracted part is treated as an official copy. |
| Duplicate | Another document prepared with the same content as the official copy or main document | It may be used for filing, retention, service, or reference, depending on the procedure. |
Simple Explanation of Each Term
1. Original
An original is the document first created as the definitive document by the issuer or creator. Copies, extracts, and official copies are usually understood by reference to the original.
2. Certified copy / complete copy
A certified copy or complete copy reproduces the entire content of the original. If the authority requires the full content, submitting only an extract may be treated as insufficient.
3. Extract
An extract reproduces only part of the original. It may be useful where only a specific part is necessary, but it is not suitable when the authority requires the entire document.
4. Official copy
An official copy is prepared under a legal or procedural system so that it has the same effect as the original. It should not be treated as just an ordinary photocopy.
5. Extract official copy
An extract official copy is an official copy prepared for only part of the original. Although it is not the full original, the extracted part is prepared as an official copy.
6. Duplicate
A duplicate is another document with the same content, often prepared for filing, delivery, service, retention, or reference purposes. Its effect depends on the document type and the procedure.
Even if two documents look like “copies,” the authority may treat them differently. Before filing, confirm whether the authority requires the original, a photocopy, an official copy, a certified copy, an extract, or a translated version.
Common Misunderstandings
- The difference between a certified copy and an extract is whether the full content or only part of the content is reproduced.
- An official copy is not always the same as an ordinary photocopy.
- A duplicate does not always have the same legal effect as an official copy.
- The same term may be used differently depending on the document, law, or authority.
- Immigration, inheritance, company procedures, and contract matters may each have different document requirements.
Practical Points Before Submission
1. Confirm what the receiving authority actually requires
The most important point is to confirm whether the receiving authority requires the original, a copy, the full content, or only an extract. Government offices, courts, banks, and immigration authorities may apply different rules.
2. A photocopy may not be enough
Sometimes a person assumes that a photocopy is sufficient, but the authority may require the original to be submitted or presented. In other cases, the original may be returned after confirmation. Always check the specific requirement before filing.
3. Foreign-language documents may require translation
In immigration and international matters, documents issued overseas, such as family relationship certificates, contracts, or company documents, may need Japanese translation. You should also check whether translator information, consistency between pages, and issuance dates are required.
Common Situations in Immigration and International Practice
In Certificate of Eligibility applications, extension applications, change of status applications, and permanent residence applications, documents such as family relationship certificates, company documents, contracts, employment certificates, residence records, and family registry documents may become important.
- Whether the original must be submitted or whether a copy is sufficient
- Whether a Japanese translation is required for foreign-issued documents
- Whether the document must be issued within a certain period
- Whether the full document is required or only an extract is enough
- How to prepare documents if you want the original returned
If the type of required document is misunderstood, the applicant may receive an additional document request, and the examination may take longer. When in doubt, check the official guidance or consult a professional.
FAQ
Q1. Should I submit a certified copy or an extract?
A. If the receiving authority needs the full content, a certified copy or complete copy may be required. If only a specific part is needed, an extract may be sufficient. When unsure, confirm with the receiving authority.
Q2. Is an official copy the same as a photocopy?
A. Not necessarily. An official copy is prepared under a legal or procedural system so that it has the same effect as the original. An ordinary photocopy may not have the same meaning.
Q3. Can a duplicate be used for submission?
A. It depends on the document type and the receiving authority. A duplicate is not always accepted for every filing purpose.
Q4. Do immigration procedures always require originals?
A. Not always. Requirements differ depending on the application and document. Some documents may require original submission, some may require original presentation, and some may be accepted as copies with translation.
Conclusion
Originals, certified copies, extracts, official copies, extract official copies, and duplicates are similar but not identical. As a starting point, you can think of the original as the base document, a certified copy as the full copy, an extract as a partial copy, an official copy as a document with official effect, and a duplicate as a document prepared for filing or reference purposes.
In actual procedures, however, the required format depends on the receiving authority. Checking the requirement early can help prevent resubmission and delays.
Need help checking documents, translations, or immigration filings?
Tommy’s Legal Service supports document checks, translations, collection planning, and preparation for immigration and other administrative procedures in Japan.
If you are not sure whether the original is required, whether a translation is needed, or how much of a document should be submitted, please contact us.
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