Bilingual affidavit and statutory declaration drafting and notarisation
An affidavit is a written statement that the deponent swears or affirms as true before a notarial services attorney. It is commonly used for name discrepancies, single status, address, family relationships and income confirmation. Drafting and notarisation normally take one to two working days, and the file can continue through consular and embassy legalisation when the destination requires it.
Who this is for: Thai nationals abroad, foreign residents in Thailand, visa applicants, marriage registrants, and anyone filing with foreign courts or authorities.
Key facts
| Common types | Same-person, single status, address, relationship, dependency, income |
|---|---|
| Standard turnaround | 1 working day to draft; signing and notarisation the same day |
| Format | Bilingual in one document, or English with a certified translation |
| Scope limit | The attorney certifies the oath and signature, not the truth of the facts |
Documents to prepare
- Valid ID card and/or passport of the deponent
- Supporting records such as house registration, birth certificate, marriage or divorce certificate
- Any form or wording prescribed by the receiving authority
- English name spelling exactly as printed in the passport
- Details of the recipient authority, country and purpose
- Witnesses with ID, if the destination requires them
How the work actually runs
- 1. Establish the facts
Our advisers review which statements are supported by documents and which must be removed because they conflict with the evidence.
Handled by: Adviser and client · Time: Same day
- 2. Draft the bilingual statement
Drafted in wording the receiving authority recognises, with the correct oath or affirmation clause and witness blocks.
Handled by: Legal and translation team · Time: 1 working day
- 3. Client review
Confirm passport-matching name spellings, dates and every factual statement before signing.
Handled by: Client · Time: Same day
- 4. Sign before the attorney
The deponent signs in the attorney's presence, presents identification, and the attorney records the register number.
Handled by: Deponent and attorney · Time: Same day
- 5. Legalise for overseas use
File with the Department of Consular Affairs and then the destination embassy in the required order.
Handled by: Filing team · Time: 2–5 working days per authority
- 6. Deliver and archive
Originals delivered with a digital copy, and the wording archived in case a fresh original is later required.
Handled by: Operations team · Time: 1–5 working days
Why cases get rejected
- Including speculative statements with no supporting document
- Name spelling that differs from the passport by even one letter
- No witnesses when the destination form requires two
- Signing in advance, which defeats the requirement to sign before the attorney
- Reusing one country's form for another without adapting the wording
Compare your options
| Option | Use when | Time | Note |
|---|---|---|---|
| Client-supplied form, we notarise | The destination has issued a clear template | Same day | Fastest, but the wording still needs review before signing |
| Full drafting plus notarisation | No template exists or the facts are complex | 1–2 working days | Lowest rejection risk from ambiguous wording |
| Thai embassy abroad | The deponent cannot travel to Thailand | Subject to embassy appointment queues | Book ahead and have the wording reviewed first |
Frequently asked questions
Affidavit or statutory declaration?
The content is similar; the oath wording differs by jurisdiction. We adapt the clause to whichever the receiving authority expects.
When is a same-person affidavit needed?
When documents spell the name differently, for example a birth certificate versus a passport, or after a legal name change.
Can you issue a single-status certificate?
Civil-status records are issued by the district office; the applicant's own declaration is a separate document. Many countries require both, and we tell you which set applies.
Does the attorney confirm the facts are true?
No. The attorney confirms the deponent signed and swore before them. Responsibility for the accuracy of the facts remains with the deponent.
How many witnesses are required?
It depends on the destination form; some require none, others one or two with identification.
Can it be filed with a foreign court?
Yes, usually after consular and embassy legalisation. Some courts prescribe a strict format that must be followed exactly.
Can wording be amended after signing?
Not on the notarised original. A fresh document must be drafted and notarised again to avoid doubts about integrity.
What if I have no time to run the process?
Send us the facts and document copies; we draft, review, arrange signing, run the legalisation chain and deliver the file back to you.
Affidavits are rejected over wording far more often than over stamps. Our advisers, with more than 15 years in cross-border documentation, keep the statement to facts the evidence supports and phrase it the way the receiving authority expects.
Send your documents on LINE for a reviewRather not handle the paperwork? Our advisory team, 15+ years in the field, runs the whole chain for you.
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Official sources
Talk to our advisory team before you start
Our team has over 15 years of experience in translation, certification, and filings with Thai and overseas authorities. We advise on choosing the correct certification route, sequencing your documents, and repairing files that were previously refused.
- A case review before work begins, so you only prepare the documents that are genuinely required
- The correct order of steps from day one, reducing the risk of a refusal and a restart
- A plain explanation of the destination authority's stated requirements as published at the time of advice
- If you would rather not handle it yourself, we run the full process end to end and return the finished file
Final acceptance rests with the receiving authority. Our guidance follows the latest verifiable published practice.