Case study: certified passport copies for an overseas institution
Overseas institutions commonly ask for a passport copy certified as a true copy of the original. The original must be produced for comparison, and the copy must reproduce every part the destination lists.
The situation
A client in Thailand submitting identity documents to an institution abroad
The destination asked for the biodata page and the latest entry stamp, each certified by an authorised certifier.
What actually blocked the file
- The copies cropped text and stamps at the edges.
- Only copies were brought; the original passport was not produced.
- It was unclear which pages the destination actually needed.
The sequence we ran
- Confirmed in writing which pages the destination required.
- Re-scanned full pages so stamps remained legible.
- Produced the original passport for comparison at the appointment.
- Prepared certified spare sets in case more were requested.
Outcome
The certified set passed review on the first submission, and the spare set served a second institution immediately.
What to prepare for passport or ID certification
- The signer’s valid original passport or Thai ID card.
- Written confirmation from the receiving authority of which certification is required and whether onward legalisation is needed.
- The valid original passport or ID card.
- A copy of the biodata page plus any visa or stamp pages requested by the destination.
- A power of attorney and the agent’s ID, where a representative handles steps that legally permit representation.
- Any additional copies specifically required by the receiving authority in your case.
This list reflects the requirements published by the responsible authority on the verification date. Authorities may change their conditions, so confirm with the source before lodging. Lawyers Council of Thailand (Lawyers Act B.E. 2528, section 27) · 2026-08-16 · source
How passport and ID copies are certified
- Confirm with the receiving authority which certification is required — signature certification, certified true copy, or certification of facts — because the wording differs for each.
- Check that the attorney is registered with the Lawyers Council as a Notarial Services Attorney and holds a verifiable registration number.
- Bring the physical passport or ID so the attorney can compare the photograph and data with the holder.
- Copy the biodata page clearly, including any visa or entry stamps the destination requires.
- The attorney certifies the copy against the original inspected, recording the inspection date.
- The attorney signs, seals, and records the notarial registration number and date on the certification.
- For overseas use, take the notarised document for legalisation at the Department of Consular Affairs and then, where required, at the destination country’s embassy or consulate.
The steps below are drawn from the procedures the responsible authority publishes itself, with the source and verification date shown. Some steps depend on the case and may change with the authority’s own announcements. Lawyers Council of Thailand (Lawyers Act B.E. 2528, section 27) · 2026-08-16 · source
Why a certified true copy is not accepted at destination
- The original was not produced
- A certified true copy attests that the copy matches an original the attorney examined. Without the original there is nothing to attest against.
- The copy omits pages or crops the seal
- A copy missing a page, or cropping a seal or signature, is commonly returned with a request for a complete and fully legible reproduction.
- The original is a record only the issuing office may certify
- For civil-registration records, destinations often require a copy certified by the issuing district office, in which case an attorney’s certification cannot substitute.
- The document was signed before meeting the attorney
- Signature certification confirms that the signer signed in the attorney’s presence. If the document arrives pre-signed, the attorney will ask for a fresh copy to be signed in person.
- Identity document is expired or presented only as a copy
- Identity verification requires a valid original passport or ID card. A copy or an expired document is not sufficient, and the certification waits until a valid original is produced.
- The certificate wording does not match what the destination prescribes
- Many receiving bodies prescribe their own certificate wording. Generic wording is commonly returned with a request to re-execute using the prescribed form.
- The document still contains blanks or unfilled fields
- The attorney certifies the document as it stands at that moment. Blanks that could be completed later should be filled in, or struck through, before signing.
Lawyers Council of Thailand (Lawyers Act B.E. 2528, section 27) · 2026-08-16 · source
What to watch next time
- The original must always be available for comparison.
- Copy full pages — never crop the edges.
- Prepare spare certified sets at the same appointment.
Questions this case raises
- Does the attorney certify that the passport contents are true?
- No. The certification states only that the copy matches the original examined; issuing passports is the Department of Consular Affairs’ function.
- Can I email a scan for certification?
- A scan helps with pre-review, but certifying a true copy still requires sight of the original.
Would rather not run this yourself?
We act as advisers from the first document review: we map which authority must sign in which order, prepare the file, and courier it for you. Fifteen-plus years of certification and legalisation work means we flag the usual rejection points before submission, not after.
Related reading
- Case study: certifying a Thai power of attorney for property abroad
- Case study: a single-status declaration for marrying abroad
- Case study: swearing an affidavit of single status for a marriage abroad
- Case study: certifying Thai company documents to register a subsidiary abroad
- Consular legalization
- Notarial Services Attorney
Last reviewed: 2026-08-11