Sworn English translation — Signature Authentication
Signature Authentication is most commonly required for ลายเซ็นในสัญญาระหว่างประเทศ · Bank forms / brokerage forms; cross-language use requires both a sworn translator and Notary Public to be accepted abroad.
Every job starts with a native English translator (MOJ-listed), is reviewed by our in-house counsel for legal terminology, then notarised — never outsourced.
English/Signature Authentication bundles are most often filed for ลายเซ็นในสัญญาระหว่างประเทศ and Bank forms / brokerage forms and Form W-8BEN, FATCA.
Authorities that accept this translation
Issued translations are accepted at MFA Thailand / US Embassy / UK Home Office / Australian DFAT / Canadian IRCC without a secondary certification of language.
Use cases: วีซ่าอเมริกา/อังกฤษ/แคนาดา/ออสเตรเลีย · สมัครเรียนต่างประเทศ · ทำงาน Work Permit · จดทะเบียนสมรสต่างชาติ
Pair direction: Thai ↔ English; staffed per destination requirement.
How NYC Legal handles your translation job
(a) Upload PDF/scan via LINE @NYCLI — quote returned within 1 business hour.
(b) Native English translator drafts v1 with bilingual glossary.
(c) Counsel reviews legal terminology + formatting.
(d) Notary Public signs + seals + issues certificate.
(e) Delivery of hard + soft copies — express 1 day at +50%.
Fees and documents to prepare
English rate is quoted on request per A4 page (standard 250 words); 10–30% volume discount over 10 pages.
Notary fees: from quoted on request to ประเมินราคาฟรี, depending on page and set count.
Prepare: เอกสารต้นฉบับที่ลงนามต่อหน้า Notary · พาสปอร์ต/บัตรประชาชน
FAQ
Do I need extra steps to use this English translation abroad?
The next legs are MFA Legalisation followed by embassy legalisation of the destination — both handled end-to-end by our team.
Will MFA Thailand accept your certified translation?
Yes, our output is recognised by MFA Thailand / US Embassy / UK Home Office and additional authorities listed above.
Turnaround time?
Standard ภายใน 1 วัน; express in 1 day with +50% fee.
Can the whole job be done remotely?
Yes, intake works via LINE @NYCLI or email — originals only need to come in at the notarisation step.






