Revenue Department Orders P.161/2566 and P.162/2566 changed the administrative interpretation applied to Section 41 paragraph 2 for foreign-sourced income of Thai tax residents.
P.161/2566 was issued 18 September 2023. P.162/2566 was issued 21 November 2023 and amended/clarified the earlier order.
The residence analysis comes first. The foreign-income rule should not be applied in isolation from Section 41.
The current administrative approach focuses on foreign-sourced income earned from 1 January 2024 onward. The year of origin must therefore be documented.
Bank statements alone do not necessarily identify the tax character of a transfer. The source and timing of the funds matter.
The Revenue Department published a dedicated PIT foreign tax credit calculation tool and supporting-document guidance in 2026. The foreign tax paid is not automatically a baht-for-baht reduction of Thai tax.
Official FTC tool and manual ↗The source explains the rule. The tax position still depends on your facts and supporting evidence.
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