How much does the Affidavit of Support notarization cost?

The Walk-in — same-day at office package is Request a quote inclusive of attorney seal, statutory fees, and domestic Thailand shipping.

Last reviewed: 2026-07-29 · by NPT Editorial Team

Reviewed by NPT Editorial TeamEditorial & Compliance TeamEditorially reviewed

Notarial Services Attorney

Available

NPT-NOTARY-affidavit-support-walk-in

Affidavit of SupportWalk-in — same-day at office

Prove the sponsor is covering costs abroad for a visa applicant. For clients in Bangkok needing same-day notarization.

Fee (THB)

฿800

Inclusive of attorney seal, statutory fees, EMS shipping within Thailand

Turnaround

Same day (Mon–Fri 09:00–17:00)

Sign and collect original at Lat Phrao 95 office with 2 duplicates

Package Specifications

Document	Affidavit of Support
Category	affidavit
Turnaround	Same day (Mon–Fri 09:00–17:00)
Delivery channel	Sign and collect original at Lat Phrao 95 office with 2 duplicates
Signed by	Sponsor + Notarial Services Attorney
Legal basis	Notarial Services Attorney Regulation B.E. 2551, s.6(3)
SKU	NPT-NOTARY-affidavit-support-walk-in

Data required on the document

Sponsor identity
Beneficiary identity
Financial commitment amount
Duration
Bank statement reference

Common pitfall (we prevent)

USA I-134 / UK Sponsor Undertaking have prescribed forms — we prepare on each embassy's form

Common use cases

US B1/B2 visa
US student F-1
UK Standard Visitor visa
Schengen visa

Accepted in countries

Why NPT

Notarial Services Attorney registered with the Lawyers Council of Thailand

Every draft is legally reviewed before the seal is applied

Acceptance guarantee — free re-issue if rejected

Free EMS with tracking within Thailand

Trust signals (E-E-A-T)

Operated by

NYC Legal & Notary Service Co., Ltd.
Reg. 0435567000061

Office address

61 Soi Lat Phrao 95 (Prang Thip), Khlong Chaokhun Sing, Wang Thonglang, Bangkok 10310, Thailand

Hours

Mon–Fri 09:00–18:00

Customer rating

★ 0/5 · 0 reviews

Frequently asked questions

How much is the Affidavit of Support package?

Request a quote per job, inclusive of attorney seal, statutory fees, and EMS shipping within Thailand.

How do I order? Is there an online cart?

No cart. Contact us via phone 094-895-8999, LINE @Thainotary, or email Notary@ilc.ltd — our team responds with a quote and appointment slot within 15 minutes (Mon–Fri 09:00–18:00).

Who signs the notarization?

A Notarial Services Attorney registered with the Lawyers Council of Thailand under the Notarial Services Attorney Regulation B.E. 2551.

What happens if the document is rejected?

If an embassy or receiving authority rejects the document because of our notarization work, we amend and re-issue it at no charge within 7 days. The decision itself rests with the authority.

Key takeaways

Only attorneys registered with the Lawyers Council of Thailand under the Lawyers Act B.E. 2528 may certify
You must sign in front of the attorney and present an original passport or Thai ID card
Documents used abroad usually also require MFA Department of Consular Affairs legalization and/or destination-embassy endorsement
Procedures and timelines may change; verify with the responsible authority before filing

Key facts at a glance — Notary Public certification

Indicative price: From Request a quote per document set
Turnaround: Typically 1–2 business days (same-day rush available)
What you receive: Signed and sealed by a Thai Lawyers Council–registered Notarial Services Attorney
Service coverage: Nationwide Thailand — courier and fully online intake, no in-person visit required.

Figures above are indicative ranges; the final quote depends on page count, language pair and receiving authority.

Ask us or request a quote right away

094-895-8999 LINE @Thainotary Notary@ilc.ltd

Documents you need to prepare — Notary Public certification

1Valid original passport or Thai ID card of the person signing
2The original document to be notarised — do not sign in advance; signing must occur before the attorney
3Details of the receiving authority — university, embassy, or overseas counterparty
4Company affidavit and power of attorney if signing for a legal entity

Before you start

• Multi-page documents should be bound and cross-sealed at the joints before certification.
• Tell us early if you need a rush job so we can reserve attorney time and the courier slot.

Practitioner guidance — Certification by a Notarial Services Attorney

Competent authority: Lawyers Council of Thailand

Practitioner guidance

For companies, bring a recent company affidavit and evidence of directors' signing authority.
Review how the foreign form expects the certifier to complete it before the appointment.
Thailand has no standalone Notary Public office; certification is performed by a Notarial Services Attorney registered with the Lawyers Council of Thailand.
The signatory must sign in front of the attorney and present an original passport or Thai ID card.
Bring the complete original document, including blank and stamped pages.

Pitfalls — why documents get rejected

Foreign-language forms with no translation for the signatory to understand.
Describing the role as international 'Notary Public' when the Thai system uses a different designation.
Signing in advance — the attorney cannot certify a signature made out of their presence.
Presenting a passport copy instead of the original on the day.
Documents containing alterations or strike-throughs without initials.

Official sources: www.lawyerscouncil.or.th · consular.mfa.go.th/th/publicservice/legalization

General guidance only. Requirements and processing times change — always verify with the competent authority before filing.

Unsure which route applies to your case? Ask our staff directly.

094-895-8999 LINE Notary@ilc.ltd

In-depth questions and answers — Certification by a Notarial Services Attorney

Answers follow the competent authority's published requirements, not marketing copy.

Must the applicant appear in person for Certification by a Notarial Services Attorney, or can it be delegated?

Some steps require the document owner to sign or appear; others accept a power of attorney. It depends on the rules of Lawyers Council of Thailand and on the document type, so confirm before booking an appointment rather than travelling and being turned away. Our staff can clarify by phone, LINE or email. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Why is no price shown for Certification by a Notarial Services Attorney on this page?

Scope varies widely per case — page count, languages, number of certification rounds, and the official fees charged by Lawyers Council of Thailand under its published schedule. A single headline figure would be misleading, so we quote against the actual documents. Send the details by phone, LINE or email for an assessment matched to your case. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

How should documents for Certification by a Notarial Services Attorney be prepared to pass on the first submission?

Thailand has no standalone Notary Public office; certification is performed by a Notarial Services Attorney registered with the Lawyers Council of Thailand. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

What should be checked first before filing for Certification by a Notarial Services Attorney?

The signatory must sign in front of the attorney and present an original passport or Thai ID card. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Which practices reduce correction rounds in Certification by a Notarial Services Attorney?

Bring the complete original document, including blank and stamped pages. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

What should a first-time applicant know about Certification by a Notarial Services Attorney?

Tell the attorney the destination country and authority in advance, since the certification wording differs by use. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

What is commonly overlooked in Certification by a Notarial Services Attorney but affects the outcome?

If the document is for overseas use, plan the next steps (MFA legalisation, Apostille or embassy) from the start. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

How can a Certification by a Notarial Services Attorney document set be kept internally consistent?

For companies, bring a recent company affidavit and evidence of directors' signing authority. The competent authority is Lawyers Council of Thailand. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Your case may have specific conditions — ask our staff directly.

094-895-8999 LINE @Thainotary Notary@ilc.ltd

Official sources: www.lawyerscouncil.or.th · consular.mfa.go.th

Continue with related services

The paths most clients take next — ask us by phone, LINE or email at any step.

Verified professional credentials

• Member, Lawyers Council of Thailand (สภาทนายความ) — verify
• Registered certified translator, Ministry of Justice (Thailand) — verify
• Recognized agent for MFA Legalization Division, Thailand — verify

Consumer protection & guarantees

• Acceptance-or-rework guarantee: we redo the work at no charge if the receiving authority rejects a first submission due to a fault on our side.
• Transparent fees quoted in writing before any work begins — no hidden surcharges.
• Confidentiality: documents handled under a written non-disclosure undertaking.
• Direct human contact for questions and quotations by phone, LINE or email.

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Primary sources from official authorities

The guidance on this page follows the rules published by the authorities below. Always confirm the current version on the official site before filing.