Affidavit Notarization

Start here: Affidavit Notarization explained for foreign clients

foreign clients clients using Affidavit Notarization usually need certainty more than speed: a clear written quote, a registered attorney on file, and a tracked delivery.

We designed Affidavit Notarization for foreign clients specifically: English-language receipts, embassy-ready cover letters, and a single point of contact throughout.

Thai Notary's Affidavit Notarization service is built specifically around foreign clients — covering signature notarization, true-copy certification, certified translation review, and direct coordination with destination embassies in a single, traceable workflow.

Legal basis for Affidavit Notarization in Thailand

The legal foundation for Affidavit Notarization sits inside the Lawyers Council framework, not the Notary Public Act of any other jurisdiction — this matters for embassies that ask about authority.

Each notarized document carries the attorney's registration number and personal seal.

The Department of Consular Affairs (MFA) authenticates the attorney's signature in the next step.

• Only attorneys registered with the Lawyers Council of Thailand may perform Notarial Services Attorney work.
• The authority is granted under the Lawyers Act B.E. 2528 and the Council's 2546 Notarial Services regulations.
• Each notarized document carries the attorney's registration number and personal seal.
• The Department of Consular Affairs (MFA) authenticates the attorney's signature in the next step.

What goes wrong when Affidavit Notarization is done by the wrong office

The hardest part of Affidavit Notarization is sequencing the documents correctly between the attorney, the Department of Consular Affairs, and the destination embassy.

According to the Ministry of Foreign Affairs, documents in the same family as Affidavit Notarization pass through 3–5 sequential steps before they can be used overseas.

• Wrong attorney type — general practice attorneys without Notarial Services registration cannot issue valid notarial certificates.
• Missing pre-check — minor name spelling differences between the document and the passport cause embassy rejection.
• Wrong sequence — sending to the embassy before MFA authentication invalidates the chain.
• Out-of-date format — embassies update cover-letter requirements every 6–12 months.

The Thai Notary workflow for Affidavit Notarization

Our Affidavit Notarization workflow runs on three layers: pre-check before booking, signing by a registered Notarial Services Attorney, and Senior Reviewer sign-off before the package leaves the office. The result is a rejection rate well below the foreign-chamber benchmark.

Quality control on Affidavit Notarization runs on two layers: the attorney who signs, and a Senior Reviewer who re-checks before the package leaves the office.

• Pre-check within 30 minutes of receiving scanned documents.
• Signing by a registered Notarial Services Attorney with credential ID on file.
• Senior Reviewer cross-checks the package before it leaves the office.
• Same-day MFA authentication for packages in by 10:00.
• Tracked courier delivery anywhere in Thailand or international DHL.
• Single point of contact in English throughout the case.

Walkthrough: Affidavit Notarization end-to-end

This guide walks through Affidavit Notarization step-by-step with the same checklist our team uses internally for foreign clients.

For foreign clients who choose the full Affidavit Notarization package, a dedicated case coordinator sends LINE or email status updates at every stage so you always know exactly where your documents are.

• Send scans by LINE or email for free pre-check.
• Confirm quote and book attorney slot.
• Sign in person at the office or via mobile notary in Bangkok.
• MFA Department of Consular Affairs authentication (1–2 working days).
• Apostille (Hague countries) or embassy legalization (non-Hague).
• Tracked courier delivery to your address.

Fees and pricing for Affidavit Notarization

For foreign clients, we publish a single fixed fee for Affidavit Notarization with no surprise add-ons — the quote you receive is the invoice you sign.

The fees shown are the standard 2026 rates for Affidavit Notarization and may be reduced under multi-document packages. foreign clients can request the quotation in either English or Thai by email or LINE.

• Standard notarization: from THB 1,000 per document.
• Apostille (MFA): THB 200 per document, government fee passed through at cost.
• Express same-day surcharge: THB 1,500–3,000 depending on document count.
• Mobile notary in Bangkok: THB 1,500 travel fee plus standard notarization.
• Volume discount from three documents or more.
• English-language quotation issued before any work begins.

Track record on Affidavit Notarization

Thai Notary processes more than 320 Affidavit Notarization-related cases each month, and we use that volume to refine the checklist for foreign clients.

• Used by foreign embassies in Bangkok for client referrals.
• Trusted by multinational HR teams for expat onboarding documentation.
• Featured in expat community guides for property closings and visa renewals.
• verifiable job reference on every certificate average client rating across LINE OA and Google reviews.

Apostille vs legalization for Affidavit Notarization

For Hague Convention countries, Affidavit Notarization now ends with an Apostille from the MFA — no consular legalization required after 1 January 2026.

• US Embassy Bangkok: requires attorney + MFA + Apostille for use in the US.
• UK Embassy Bangkok: requires attorney + MFA + Apostille (Hague).
• Australian Embassy: requires attorney + MFA + Apostille (Hague).
• Chinese Embassy: requires attorney + MFA + embassy legalization (non-Hague).
• Japanese Embassy: requires attorney + MFA + Apostille (Hague).
• Vietnamese Embassy: requires attorney + MFA + embassy legalization (non-Hague).

Express vs standard Affidavit Notarization

For foreign clients on a same-week deadline, Affidavit Notarization can be compressed to 48 hours when documents arrive complete on day one.

foreign clients on a tight Affidavit Notarization deadline can secure a walk-in slot before noon to catch the same-day MFA window at the Department of Consular Affairs.

• Pre-check: same day, usually within 30 minutes.
• Attorney signing: 30–60 minutes by appointment.
• MFA authentication: 1–2 working days standard, same-day express available.
• Apostille: included in the MFA step from January 2026 for Hague countries.
• Embassy legalization: 2–7 working days depending on the embassy.
• Domestic courier delivery: next working day anywhere in Thailand.

Service coverage for Affidavit Notarization in Thailand

Affidavit Notarization coverage spans Thailand and neighbouring provinces, anchored at our Bangkok headquarters with regional branches reachable by appointment.

• Headquarters in Bangkok with branches covering Phuket, Chiang Mai, Pattaya, and Hat Yai.
• Mobile notary service across Bangkok metropolitan area.
• Remote document handling for clients outside Thailand via tracked courier.
• English- and Thai-speaking coordinators on every case.

Affidavit Notarization for South Korean Investor (Thailand)

Our Affidavit Notarization engagements with South Korea clients prioritise the destination authority's checklist over generic notarial wording — korean citizens executing investment, real-estate and family-trust documents bound for korea.

When south korean investor clients book Affidavit Notarization, we prepare a coordinated bundle covering Investment POA, Family Trust, Korean Translation Affidavit so a single MFA submission carries the entire matter.

South Korea is a Hague Apostille member, so for Thailand-issued Affidavit Notarization the chain ends at the Department of Consular Affairs — no further embassy stamp is required.

• Investment POA for South Korea — typical Thailand lead time 2–5 working days.
• Family Trust for South Korea — typical Thailand lead time 2–5 working days.
• Korean Translation Affidavit for South Korea — typical Thailand lead time 2–5 working days.

Affidavit Notarization routed through the Mexico Embassy in Bangkok (Thailand clients)

Located at 20th Floor, Thai-CC Tower, 889 South Sathorn Road, Bangkok 10120, the Embassy of Mexico Bangkok typically returns legalized documents in 7–9 working days depending on document complexity.

Because Mexico is in the Hague Apostille Convention, the Embassy itself does not legalize commercial documents — the Apostille from Thailand's MFA is sufficient. However, the Embassy may still notarize affidavits sworn by its nationals.

Documents bound for Mexico typically require translation into ES. We pair the translation with the notarization in a single legalization batch from Thailand to save 1–2 days.

Affidavit Notarization when used as a Certified birth certificate (affidavit-pillar)

When Affidavit Notarization is used as a Certified birth certificate, the certificate wording differs from a generic notarial seal. Thai birth certificates need a translated counterpart certified alongside the original to be accepted by foreign civil registries.

For Thailand clients, Certified birth certificate typically pairs with the destination authority's acceptance criteria — we verify the latest format the day before signing to avoid post-MFA rejection on this specific affidavit-pillar matter.

Procedural note for affidavit-pillar: Witness vs party signature

Some forms require the attorney to act as a witness rather than a notary — the wording on the certificate differs accordingly.

For Affidavit Notarization, this safeguard is built into the standard checklist — the document then survives MFA scrutiny and downstream destination review.

Acceptance abroad: Affidavit Notarization in South Korea for Thailand clients

Affidavit Notarization produced in Thailand, Thailand is accepted in South Korea provided the chain is complete and the certificate is current. South Korea typically receives such documents through the Apostille register lookup or face-of-document verification.

If your destination authority in South Korea requests an additional translator declaration on this affidavit-pillar matter, we provide one in English signed by the same attorney to keep the chain intact.

Getting to our office and the relevant authorities (Thailand)

For Sathorn embassies (Germany, Singapore, Italy, Denmark), MRT Lumphini is the nearest interchange.

For affidavit-pillar matters, if you need Affidavit Notarization completed in a single morning we recommend an 08:30 attorney appointment so the document reaches the MFA legalization counter before the 11:00 same-day cut-off.

• Nearest BTS to our HQ: BTS Nana (Sukhumvit Line)
• Nearest MRT to our HQ: Airport Rail Link Makkasan
• Same-day attorney + MFA legalization possible when booked before 09:30
• Door-to-door courier across all 50 Bangkok districts
• Provincial pickup available via partner couriers (overnight)
• Embassy queue ticket pre-booking for US/UK/AU/CA/DE/FR/JP/KR/CN/IN