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Statutory Declaration / Sworn Affidavit — Notarial Services Attorney · HCCH Apostille (มีผล 28 ก.พ. 2570) · Reg. 2546 §§ 17–19

Statutory Declaration / Sworn Affidavit for Foreigners in Thailand — Notarial Services Attorney · HCCH Apostille (มีผล 28 ก.พ. 2570) · CCC §§ 9–14 · Penal § 177 Shield

We draft and notarize Statutory Declarations / Sworn Affidavits that work both inside Thailand and at the foreign authority, bank, embassy or court that needs them — for name changes, address verification, lost-document replacement, parental consent for minor travel, de-facto / common-law relationship affirmation (AU Subclass 309/820, NZ Partnership, CA Spousal Sponsorship), income & source-of-funds statements, AMLA identity confirmation, and statements of fact for foreign litigation. Notarized by a Lawyers-Council-registered Notarial Services Attorney under Reg. B.E. 2546 §§ 17–19, then Apostilled / Authenticated at the MFA Department of Consular Affairs (HCCH entering into force in Thailand on 28 February 2027, 130 contracting states). No outcome guarantee on the receiving authority, but a 100% refund if a document we produced is rejected because of our error.

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Notarial Services Attorney
ขึ้นทะเบียนกับสภาทนายความในพระบรมราชูปถัมภ์
16,168+
ลูกค้าที่ไว้ใจ
6
ทนาย Notary
4
สาขาทั่วประเทศ
50+77
เขต กทม. / จังหวัด
60+
สัญชาติลูกค้า
≤ 3 นาที
ตอบ LINE

A Statutory Declaration is a written statement that the Declarant solemnly affirms to be true, signed in person before a Notarial Services Attorney in Thailand. It is the most flexible instrument in the notarial toolkit — usable for almost any factual matter a foreign authority, bank, embassy or court needs you to attest. Unlike a Single Status Affidavit (which uses an embassy template), a Statutory Declaration has no fixed form, so risk lives in the **wording**: one ambiguous clause can be rejected by the receiving authority, or used as evidence against the Declarant later under Penal § 177.

The purposes we see most often: (a) **Name change / spelling variation** — passport doesn't match older documents (marriage, gender change, transliteration); (b) **Lost-document affidavit** — to replace a passport, visa or title deed; (c) **Parental consent for minor travel** under CCC § 1574 + ICAO Doc 9303 + Hague Convention 1980 (child-abduction prevention); (d) **De-facto / common-law relationship statement** for Subclass 309/820 (AU), Partnership Visa (NZ), Spousal Sponsorship (CA) — must specify cohabitation period, joint finances, social recognition; (e) **Income & source-of-funds statement** for immigration / mortgage / investment under AMLA CDD; (f) **Identity confirmation** for foreign banks — Wise, Revolut, HSBC, Standard Chartered accept an Apostilled notarial declaration instead of an in-branch visit.

Our attorneys are registered Notarial Services Attorneys with the Lawyers Council of Thailand (verify at /trust/credentials). Scope: (1) pre-drafting interview to isolate the **operative facts** the receiving authority needs; (2) draft the declaration in English (and/or Thai) to the format expected by the destination's common-law or civil-law tradition; (3) line-by-line counter-read with you to confirm every word is true and unambiguous; (4) oath / solemn affirmation in person under Reg. 2546 § 17; (5) signature + notarial seal + entry in the Notarial Register Book under § 20 (retained 10 years); (6) MFA-certified Thai translation when needed; (7) Apostille / Authentication at the MFA Department of Consular Affairs. Lawyer-client privilege from your first LINE message, PDPA § 24 + 26, AMLA CDD throughout. **No contingency fees** under Lawyers Council Code of Ethics § 11.

Impact of HCCH Apostille (entering into force in Thailand on 28 February 2027): a single Apostille is now accepted in 130 contracting states, cutting embassy-legalization timelines from 7–14 days to 1–3 days and costs by 60–75%. Common destinations using Thai-issued Statutory Declarations: UK, AU, NZ, CA, SG, HK, JP, KR, DE, FR, IT, ES, NL, BE, US (state-dependent), UAE.

Notary attorneys

We draft and notarize Statutory Declarations / Sworn Affidavits that work both inside Thailand and at the fore

6Notary attorneys

Provinces

Provinces · 50+77

77Provinces

Clients served

16,168+ clients · 60+ nationalities

16,168+Clients served

Turnaround

Send your passport + purpose via LINE — receive a draft declaration, checklist and fixed-fee quote within one

≤24hTurnaround

What you need to know

Most common purposes

  • 📛 Name change / spelling variation — passport vs birth / marriage certificate mismatch
  • 🛂 Lost-passport / lost-visa / lost-title affidavit for embassy or land office replacement
  • 👨‍👩‍👧 Parental consent for minor travel — single parent, sole custody, child travelling alone
  • 💑 De-facto / common-law relationship statement — Subclass 309/820 (AU), Partnership (NZ), Spousal (CA)
  • 💰 Income / source-of-funds statement — immigration, mortgage, investment, AMLA CDD
  • 🏦 Identity confirmation for foreign banks — Wise / Revolut / HSBC / Standard Chartered
  • 📑 Statement of facts for foreign litigation — equivalent to a witness statement
  • 🏠 Proof of address — foreign account opening / tax residency certificate / CRS
  • 🎓 Education / employment history — background checks, NAATI translation, professional licensing
  • 👶 Single-parent / sole-custody declaration — schools, insurance, immigration

6-step workflow — pre-drafting to Apostille

  • Step 1 (D-5): pre-drafting interview — operative facts, purpose, destination authority, required form (if any)
  • Step 2 (D-3): draft declaration (English / Thai / Bilingual) sent for your review with 1–2 revision rounds
  • Step 3 (D-1): final counter-read line by line — confirm every statement is true and unambiguous
  • Step 4 (D-Day): oath / solemn affirmation in person before the Notarial Attorney — signature + seal + Notarial Register Book entry (10-year retention, Reg. 2546 § 20)
  • Step 5 (D+1): MFA-certified ISO 17100 TEP translation if needed
  • Step 6 (D+3): Apostille (HCCH (in force for Thailand 28 February 2027)) 2 business days, or Embassy Legalization for non-contracting states; same-day express quote on request (phone / LINE / email) (BKK only)

Fixed-fee pricing & turnaround

  • Simple Declaration (1 page, English only, HCCH destination) — THB 3,500–6,500 · 2–3 business days
  • Standard Declaration (2–3 pages + Thai translation + Apostille) — quote on request (phone / LINE / email) · 3–5 business days
  • Complex Declaration (de-facto relationship / source-of-funds / multi-affidavit) — THB 12,000–25,000 · 5–10 business days
  • Bilingual drafting (TH/EN parallel column) +THB 2,500
  • Express add-on (same-day notary + same-day MFA — BKK only) quote on request (phone / LINE / email)
  • MFA Apostille — quote on request (phone / LINE / email); Authentication — quoted on request standard / quoted on request express
  • No hidden costs — written fixed-fee quote + 100% refund if MFA rejects due to our error

Edge cases to watch

  • 🚨 Parental consent — must include child's name, DOB, passport number, travel window, destination, travelling adult — and **both parents** must sign unless a sole-custody court order exists (Hague 1980)
  • 🚨 De-facto relationship (AU 309/820) — cohabitation start, joint finances, social recognition, mutual commitment — each pillar evidenced (lease, bank, photos)
  • 🚨 Source-of-funds — origin (salary / business / inheritance / asset sale), amount, currency, date, payer — no vague language (AMLA + FATF Recommendation 10)
  • 🚨 Name change without court order — explain reason, attach source documents and consistent ongoing use
  • 🚨 Lost-document affidavits with fraud red flags — we file an AMLA STR under § 13 where statutory
  • 🚨 Declarations naming third parties — PDPA § 26 (sensitive) or § 24 (general) consent required
  • 🚨 Declarations for foreign criminal proceedings — co-draft with destination-country counsel to manage cross-examination risk

Risk shields — what we never do

  • ❌ Never draft a declaration with false statements (Penal § 137 + § 177 up to 7 years + § 264 + § 268)
  • ❌ Never backdate the oath (Reg. 2546 § 19 — licence revocation risk)
  • ❌ Never use machine translation (MFA rejection + meaning loss in foreign court — ISO 17100 TEP only)
  • ❌ Never accept a minor's declaration without both parents' consent under § 1574 (absent a court order)
  • ❌ Never include third-party data without PDPA § 24/26 consent
  • ❌ Never accept a contingency fee or share in the outcome (Ethics § 11)
  • ❌ Never issue a receipt that doesn't match the actual fee (Revenue Code + Lawyers Council Ethics)
  • ❌ Never proceed where AML / fraud red flags are present — we file STR under AMLA § 13

Workflow verification — what we double-check for you

  • Passport validity ≥ 6 months + visa status matches TM.6
  • Name spelled identically across all documents — Royal Institute transliteration
  • Operative facts match every supporting document
  • Wording matches the destination jurisdiction's standard (UK: 'solemnly and sincerely declare' / AU: Statutory Declarations Act 1959)
  • Notarial Attorney licence number verifiable with the Lawyers Council
  • MFA Apostille / Authentication number verifiable via Consular Online Verification
  • Notarial Register Book retained 10 years (Reg. 2546 § 20) + ISO/IEC 27001 backup

Workflow verification — what we double-check for you

Frequently asked questions

Can a Thai Statutory Declaration be used in the UK / AU / NZ / CA?

Yes. A Notarial Services Attorney registered with the Lawyers Council of Thailand is a Notary Public within the meaning of HCCH Apostille Convention 1961 and most common-law statutes. Once MFA-Apostilled, the declaration is accepted in the UK, AU, NZ, CA, SG, HK and 130 contracting states.

How is it different from an Affidavit?

An Affidavit is sworn under oath (Oath of Office Act 2542), with stronger evidentiary weight and preferred in civil-law and court use. A Statutory Declaration is a solemn declaration used in common-law jurisdictions for out-of-court matters. In Thailand both are administered by Notarial Attorneys under Reg. 2546.

I already have a draft — can the attorney just sign it?

Yes, but we always review the wording first — ambiguous, off-format or potentially-false statements are rejected by receiving authorities and expose the declarant to Penal § 177. Review quote on request (phone / LINE / email) (credited if you use the full service).

Can I sign online or do I need to attend in person?

In person only. Reg. 2546 § 17 requires the Notarial Attorney to verify identity and witness the signature. Remote Online Notarization (RON) is not yet recognised in Thai law (unlike US Florida / Virginia). We have a Bangkok office plus a nationwide travel-notary service.

Can HCCH Apostille (entering into force for Thailand 28 February 2027) be used for a Statutory Declaration?

Yes — notarial acts are within Apostille scope under Article 1(c). Since 28 February 2027 the MFA issues Apostille in lieu of embassy legalization for the 130 contracting states, cutting turnaround 60–75%. Non-contracting states still require embassy legalization.

Child travelling alone — do both parents need to consent?

Yes, under CCC § 1574 + ICAO Doc 9303 + Hague 1980 (child abduction prevention). Exceptions: (a) sole-custody court order, (b) the other parent is deceased (apostilled death certificate), (c) the other parent's whereabouts are unknown after lawful search. We will pick the safest lawful path under both Thai and destination law.

What goes into a de-facto relationship declaration for an Australian Partner Visa?

(1) Cohabitation start date + address; (2) Joint finances — bank statements, bills; (3) Social recognition — photos, third-party statements; (4) Mutual commitment — future plans, wills, beneficiaries. Each pillar must be evidenced. Don't overclaim — Australian DHA scrutinises under Migration Act § 4AA + Schedule 2 Reg. 1.15A.

What goes into a source-of-funds declaration?

(1) Origin (salary / business profit / inheritance / asset sale / gift); (2) Amount + currency; (3) Date received; (4) Payer; (5) Supporting documents (pay slip, tax return, sale contract, will). No vague language — AMLA + FATF Recommendation 10 + destination AML (UK MLR 2017, AU AML/CTF Act, EU 6AMLD) are very strict.

What's included in the all-in fee?

Written fixed-fee quote covering: (1) pre-drafting interview; (2) drafting + 1–2 revision rounds; (3) Notarial Attorney fee + register entry; (4) MFA-certified translation if needed; (5) MFA Apostille / Authentication; (6) document courier; (7) express add-on if chosen. No surprises — any scope change is re-quoted in writing.

How is my personal data protected?

PDPA § 24 (general) and § 26 (sensitive — religion, political opinion, health, sexuality) apply. Stored on ISO/IEC 27001 servers in Thailand, AES-256 + HSM, TLS 1.3, MFA + biometric access, audit log, 10-year retention (notarial standard), DPO registered with the PDPC. Subject access: dpo@notary.co.th.

Is the first consult free? What do I send?

Yes — first consult free. LINE us: (1) passport bio page; (2) declaration purpose; (3) destination country + authority; (4) any required form/template; (5) deadline. Within 1 business day we return a draft declaration, checklist, fixed-fee quote and timeline. Lawyer-client privilege from the first message, no consult fee, no obligation.

What happens if I make a false statement?

(1) Thai Penal § 137 up to 6 months (false statement to officer); (2) § 177 up to 7 years (false oath before an attorney administering an oath); (3) §§ 264 + 268 up to 3 years (forgery + use); (4) destination penalties — UK Perjury Act 1911, AU Crimes Act 1914, US 18 USC § 1621; (5) Notarial Attorney licence revocation + AMLA STR. We refuse the engagement at the first sign that any statement is untrue.

แหล่งอ้างอิง / Authority References

16,168+ clients served

ลูกค้าจริง 60+ สัญชาติทั่วโลก ใช้บริการ Notary, แปลรับรอง, MFA และสถานทูตกับเรา

Verified clients

  • "ทีมงานช่วยจัดเตรียมหนังสือมอบอำนาจสำหรับใช้ที่ออสเตรเลียได้รวดเร็วมาก พร้อมประสานงาน NAATI ครบจบในที่เดียว"

    K. PimPOA → NAATI · 2025

  • "Very professional notary service. Document was certified, translated and ready for the UK embassy in two business days."

    Daniel R. (UK)Affidavit → UK Embassy

  • "ใช้บริการรับรอง Affidavit + รายชื่อผู้ถือหุ้นเพื่อจดทะเบียนสาขาที่สิงคโปร์ ทีมงานละเอียดและตอบกลับไว"

    บริษัทคู่ค้าCorporate Pack · 2025

Free consult: statutory declaration / sworn affidavit for foreigners in Thailand

Send your passport + purpose via LINE — receive a draft declaration, checklist and fixed-fee quote within one business day

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Playbook: affidavits and statutory declarations for overseas use

Short answer: An affidavit is a statement of facts confirmed by the deponent and signed before a Notarial Services Attorney. The attorney certifies that the person appeared and signed, not that the contents are true. The document is then legalised at the Department of Consular Affairs and, where the receiver requires it, at the destination embassy.

Documents to prepare

Deponent

  • • Original passport or Thai ID card
  • • Draft statement setting out facts in numbered paragraphs, with date and place
  • • Supporting exhibits such as registrations, contracts, receipts or photographs

For foreign proceedings

  • • The wording or template required by the foreign lawyer or court
  • • Translation into the destination language accepted by the receiver

Corporate deponent

  • • Company affidavit and evidence of the signatory's authority
  • • Internal records supporting the stated facts, such as minutes or memoranda

Process steps

  1. 1. Define the facts to be stated

    Identify what the receiver needs confirmed and draft numbered paragraphs limited to the deponent's own knowledge.

    ⏱ 1–3 business days (estimate)

  2. 2. Draft and attach exhibits

    Reference exhibits by matching numbers and avoid opinions or legal conclusions.

    ⏱ 1–3 business days (estimate)

  3. 3. Sign before a Notarial Services Attorney

    The deponent appears in person; the attorney records the identification and certifies the signature.

    ⏱ Same day

  4. 4. Legalise at Consular Affairs

    Have the certifying attorney's seal and signature authenticated before the next layer.

    ⏱ 2–5 business days (estimate)

  5. 5. Embassy legalisation and delivery

    Legalise at the destination embassy where required, then deliver the complete set through an accepted channel.

    ⏱ 3–15 business days (estimate)

What to watch out for

  • • Opinions or legal conclusions inside the statement reduce the weight the receiver gives it.
  • • Exhibits referenced without matching numbers are commonly sent back for correction.
  • • Signing before meeting the attorney invalidates the signature certification.
  • • False statements carry legal consequences both in Thailand and at the destination.

Affidavit compared with a certified true copy

CriterionAffidavitCertified true copy
Function of the documentConfirms facts within the signatory's knowledgeConfirms the copy matches the original shown
What is certifiedThe deponent's appearance and signatureThe comparison between copy and original
Main riskStatements beyond the signatory's own knowledgeMissing pages or an unreadable copy
How they combineUsually paired with certified exhibitsUsually forms an exhibit to an affidavit

We advise, not just execute

  • • Separate provable facts from opinion that does not belong in the statement
  • • Structure exhibits and cross-references consistently across the bundle
  • • Align the wording with the destination lawyer before the signing appointment
  • • Sequence certification layers to meet the foreign filing deadline

When a foreign filing date is fixed, our advisers help draft, organise the exhibits and run every certification layer in time. Send us the case details to start.

All durations are working-day estimates excluding agency queues, and are not a guarantee of any authority's decision.

Sources: สภาทนายความในพระบรมราชูปถัมภ์ · กองสัญชาติและนิติกรณ์ กรมการกงสุล กระทรวงการต่างประเทศ · Last reviewed: 2026-08-11

Document and legalization advisers with 15+ years of practice

We advise throughout the matter, not just process paperwork

Before we start, we read your actual documents and confirm the legalization route matches what the receiving authority asks for. During the work we report progress, and after delivery we still answer questions about how to submit the file.

Before we start — document risk review

  • Check that names, dates and document numbers match across every page
  • Confirm whether the receiving body needs originals, certified copies or digital files
  • Tell you early if a document must be reissued or re-extracted first

While the matter runs — filing and status updates

  • Report which step is in progress with working-day estimates
  • Respond immediately when an authority requests extra documents
  • Confirm official fees before each filing step

After delivery — support until the file is usable

  • Explain how to submit the file to the destination authority or embassy
  • Keep a copy on record so extra sets can be issued later
  • Answer follow-up questions when the destination asks for supporting papers

We prepare documents to the requirements of the receiving authority. Any approval decision remains at that authority's discretion.

Send your documents on LINE for a preliminary review, a recommended legalization route and a written quote.

Ask on LINE @Thainotary Call 094-895-8999
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Pick by the purpose of your document

Service steps at a glance and the documents you need first

An affidavit is a statement of facts confirmed by the deponent and signed before a Notarial Services Attorney. The attorney certifies that the person appeared and signed, not that the contents are true. The document is then legalised at the Department of Consular Affairs and, where the receiver requires it, at the destination embassy.

How the work runs

  1. Define the facts to be stated — 1–3 business days (estimate)
  2. Draft and attach exhibits — 1–3 business days (estimate)
  3. Sign before a Notarial Services Attorney — Same day
  4. Legalise at Consular Affairs — 2–5 business days (estimate)
  5. Embassy legalisation and delivery — 3–15 business days (estimate)

Documents to prepare first

  • • Original passport or Thai ID card
  • • Draft statement setting out facts in numbered paragraphs, with date and place
  • • Supporting exhibits such as registrations, contracts, receipts or photographs
  • • The wording or template required by the foreign lawyer or court
  • • Translation into the destination language accepted by the receiver
  • • Company affidavit and evidence of the signatory's authority

When a foreign filing date is fixed, our advisers help draft, organise the exhibits and run every certification layer in time. Send us the case details to start.

Durations are working-day estimates excluding agency queues and are not a guarantee of any decision.

A lawyer explaining a document to a client across a meeting table in a law office
Discuss scope and required documents with our team by phone, LINE or email.

Official sources & further reading

Statements on this page follow the authorities below. Confirm current requirements with the authority before filing. Last reviewed 2026-07-29.

Related questions

Why are fees not published on the site?
Scope varies widely with document count, language and the consular steps involved, so we quote against the actual work and confirm details by phone, LINE or email before starting.
Do you serve clients outside Bangkok?
Yes — we serve clients nationwide and overseas, receiving documents by post or courier and scheduling signing appointments when in-person attendance is required.
How is personal data in my documents handled?
Documents are used only for the purpose you state, retained for the period professional duties and data-protection law require, and not disclosed to third parties without consent.
When was this page last reviewed?
Each page shows its last-reviewed date in the sources section. Authority requirements change, so confirm current conditions with the receiving authority before proceeding.

Related services

Fees are not published online — ask our team by phone, LINE or email for a scope-based quote.