Treaty detail
United States - Thailand tax treaty
A practical treaty page built around the official treaty text, key withholding categories, permanent-establishment rules, and article-level summaries.
Signed
1996-11-26
Effective
1998-01-01
Articles seeded
6
Withholding snapshot
Dividends
Individual rate: 15% · Corporate rate: 10%
The 10 percent corporate rate generally depends on direct ownership of at least 10 percent of the voting stock of the dividend payer. Article-level review is required because Thai domestic law and treaty interaction can produce different practical outcomes.
Interest
Rate: 15%
IRS Treaty Table 1 reflects a general 15 percent ceiling, with a 10 percent rate available for interest paid to qualifying financial institutions. Government and similar exemptions may apply subject to article-level review.
Royalties
Rate: 15%
The Thailand treaty applies a general 15 percent royalty ceiling, with reduced rates for certain industrial, commercial, or scientific equipment royalties. Article text continues to control for software and know-how classification.
Permanent establishment
Construction threshold: more than 120 days
The Thailand treaty contains relatively strict dependent-agent rules and an unusual stock-of-merchandise rule that can create PE earlier than under modern OECD-style treaties.
Other treaty flags
Pension treatment is article-specific, with government-service pensions and private pensions handled separately. Thai domestic-law treatment of pension income can complicate the practical outcome.
Seeded article summaries
Article 4
Residence
Defines treaty residence and is the starting point for any claim to reduced withholding or treaty protection.
Residence under the Thailand treaty matters particularly for the growing cohort of U.S. expatriates and digital workers with substantial Thai presence. Tie-breaker rules govern dual-resident outcomes.
Article 5
Permanent Establishment
Sets the business-presence threshold that permits source-country taxation of business profits.
The Thailand treaty includes a 120-day threshold for certain construction and supervisory activities, and a service-PE provision triggered by extended presence. These shorter thresholds can create earlier source-country tax exposure than under many OECD-style treaties.
Article 7
Business Profits
Generally reserves business profits to the residence state unless a permanent establishment exists in the other state.
This article matters because Thai domestic law has historically been aggressive about source-country taxation of business profits. Article 7 protection cannot be assumed without careful Article 5 PE review.
Article 10
Dividends
Provides treaty limits on source-country dividend withholding in qualifying cases.
The dividend article's 10 percent and 15 percent ceilings are the snapshot, but the article wording, ownership thresholds, and Thai domestic withholding interactions control the practical outcome.
Article 11
Interest
Limits source-country withholding on qualifying interest.
The Thailand treaty does not eliminate interest withholding outright. The 10-15 percent rate range and the financial-institution carve-out are important for cross-border lending and inter-company financing structures.
Article 12
Royalties
Limits source-country withholding on qualifying royalties.
The royalty article applies a relatively high 15 percent ceiling on most categories, with carve-outs for industrial, commercial, or scientific equipment. Software and know-how categorization under Thai law can be unpredictable, so primary-source review matters.
Official text
Other treaties involving these jurisdictions
Computed from the cross-reference graph. Links open the related entity on this site.
This entry cites
- TreatyUS–GB treaty
- TreatyUS–CA treaty
- TreatyUS–DE treaty
- TreatyUS–FR treaty
- TreatyUS–JP treaty
- TreatyUS–NL treaty
- TreatyUS–AU treaty
- TreatyUS–KR treaty
Primary sources
- Thailand treaty documents pageVerified 2026-05-20
- Official U.S.-Thailand treaty PDFVerified 2026-05-20
- IRS Tax Treaty Table 1Verified 2026-05-20
- Thailand technical explanationVerified 2026-05-20
Important disclaimer
This library is for general tax education only. Always verify filing obligations, due dates, and tax consequences against the cited primary source or with a qualified tax professional.