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.
Stamp Duty Payment Form (Or.Sor.4)
Payment form for stamp duty on instruments listed in Revenue Code Schedule (leases, powers of attorney, partnership contracts, share transfers, hire-purchase, etc.). Cash stamp or e-Stamp.
When Used
On execution of stampable instruments.
Who Files
Party to the instrument (usually the one creating the obligation).
Fee & Logistics
Varies by instrument; rates set in Revenue Code Schedule
Same day
Revenue Office; some land office transactions integrate stamp duty into transfer fees
Filing Method
- Cash stamp
- e-Stamp via Revenue Department portal
- Integrated payment at Land Office
Required Documents
- The stampable instrument
Field-by-Field Walkthrough
Instrument type
Lease, POA, etc.
Value
Consideration / value for rate calculation.
Common Mistakes
- Failing to stamp lease over THB 1,000 monthly
- Wrong rate calculation
Legal Basis
Revenue Code Chapter VI (Stamp Duty)
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.
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