Reviewed by NPT Editorial Team·Editorial & Compliance Team·Editorially reviewed
Notarial Services Attorney
Available
NPT-NOTARY-signature-authentication-standard
Signature AuthenticationStandard — 2–3 business days
Authenticate a signature on contracts, bank forms, DBD Online filings. Standard bundled price with nationwide delivery.
Fee (THB)
฿1,500
Inclusive of attorney seal, statutory fees, EMS shipping within Thailand
Turnaround
2–3 business days
Attorney-signed PDF + hardcopy dispatch via EMS within Thailand
Package Specifications
Document
Signature Authentication
Category
personal
Turnaround
2–3 business days
Delivery channel
Attorney-signed PDF + hardcopy dispatch via EMS within Thailand
Signed by
Notarial Services Attorney
Legal basis
Notarial Services Attorney Regulation B.E. 2551, s.6(1)
SKU
NPT-NOTARY-signature-authentication-standard
Data required on the document
Signer identity check
Live signature witnessing
Attorney seal
Attorney declaration
Common pitfall (we prevent)
The signature must be applied in front of the attorney — pre-signed documents are void
Common use cases
Foreign bank forms
DBD e-Filing
Contract execution abroad
Accepted in countries
TH
US
UK
AU
SG
JP
CN
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 Signature Authentication 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.
Notarization in Thailand is performed by Notarial Services Attorneys registered with the Lawyers Council of Thailand. Documents are then typically legalized at the MFA Department of Legalisation before embassy submission.
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
Real customer questions, answered by our attorneys
Selected from our knowledge base of 3,300+ real questions we have answered.
What are the correct procedures for obtaining authentication at a Royal Thai Embassy abroad?
Consular / Apostille
Quick summary for expats, HR and law firms to "What are the correct procedures for obtaining authentication at a Royal Thai Embassy abroad?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
How to get an affidavit notarized by a Thai lawyer?
Notary Public
Per the Lawyers Council of Thailand's Notarial Services rules to "How to get an affidavit notarized by a Thai lawyer?" — Standard turnaround is 1 business day; same-day service is available by appointment for straightforward files. You must sign in front of the attorney with your original passport; the attorney affixes the notarial seal, signature, register number and date so the document is accepted abroad. Send a photo of your document to LINE @Thainotary and we'll quote and schedule within 15 minutes.
What are the exact government statutory fees for standard and express same-day MFA document legalizations?
Consular / Apostille
Practitioner's view to "What are the exact government statutory fees for standard and express same-day MFA document legalizations?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
How do foreign petrochemical refinery safety audit certificates undergo MFA review?
Consular / Apostille
Quick summary for expats, HR and law firms to "How do foreign petrochemical refinery safety audit certificates undergo MFA review?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
What does the Department of Consular Affairs charge for a document used in the United Kingdom: Request a quote per document normal service and Request a quote per document express filed before 11:30?
Consular / Apostille
Practitioner's view to "What does the Department of Consular Affairs charge for a document used in the United Kingdom: Request a quote per document normal service and Request a quote per document express filed before 11:30?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
What consular steps govern foreign atmospheric research and climate change monitoring deeds?
Consular / Apostille
Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What consular steps govern foreign atmospheric research and climate change monitoring deeds?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Can I request a replacement or duplicate copy directly from the MFA if an original legalized document is lost in transit?
Consular / Apostille
Quick summary for expats, HR and law firms to "Can I request a replacement or duplicate copy directly from the MFA if an original legalized document is lost in transit?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
How are foreign forensic science and DNA testing laboratory accreditation files legalized?
Consular / Apostille
Practitioner's view to "How are foreign forensic science and DNA testing laboratory accreditation files legalized?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
A standard Notarial Services Attorney signature in Thailand costs between 1,000 and Request a quote per document, with same-day service in central Bangkok and a written quote provided before any work begins.
Can a Thai notary sign documents that will be used overseas?
Yes. A Notarial Services Attorney registered with the Lawyers Council of Thailand can notarize documents intended for use abroad, after which the document is legalized at the Ministry of Foreign Affairs (MFA) and, if required, at the destination country's embassy.
Do I need an appointment to notarize a document in Bangkok?
Walk-ins are accepted, but booking a 30-minute slot in advance guarantees same-day completion and lets us pre-check that you bring the right identification and any supporting documents.
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.