Educational Information Only
The content on this page is for general educational purposes and does not constitute legal advice. Every legal situation is unique. For matters involving investigation, arrest, litigation, or formal proceedings, consult a qualified legal professional.
Por.Or.01 — Tax ID Registration
Application for a Thai Tax Identification Number (TIN / PIN). Required for individuals receiving Thai-source income above thresholds and for juristic persons.
When Used
Before first Thai income receipt requiring tax filing.
Who Files
Individuals and juristic persons.
Fee & Logistics
Free
Same day at Revenue Office
Local Area Revenue Office
Filing Method
- In-person at Revenue Office
Required Documents
- ID document (passport / Thai ID)
- Address proof
- Employer letter (where applicable)
Field-by-Field Walkthrough
Full name
(ชื่อเต็ม)Surname and given names as shown on passport / national ID.
Passport number
(เลขที่หนังสือเดินทาง)Passport number; foreigner-relevant forms.
Address
Thai address for tax-correspondence.
Common Mistakes
- Confusion between personal TIN (13-digit, includes nationals) and corporate Tax ID
Legal Basis
Revenue Code §3 quintus
This walkthrough summarises the practical filing requirements for a Thai government form as a starting point. Fees, procedures, and required documents change without notice — always verify with the issuing authority before filing. Educational use only; not a substitute for advice from a Thai-qualified lawyer, accountant, or licensed visa agent.
Professional Legal Assistance
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