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Published by Ransun Accounting | Tax & Advisory Experts in Thailand Introduction Thailand’s taxation system has undergone a significant transformation, especially regarding foreign-sourced income. What was once a flexible tax treatment has now evolved into a stricter and more globally aligned framework. As of 2026, the Thai Revenue Department continues enforcing new rules that directly impact expats, digital nomads, investors, and Thai residents earning income abroad. Underst

Managing payroll and compliance in Thailand is becoming significantly more complex in 2026 as the Social Security Office Thailand introduces one of its most important reforms in over 30 years, fundamentally changing how contributions are calculated and impacting both employers and employees across the country; effective from 1 January 2026, the government has increased the salary ceiling used for social security contributions from THB 15,000 to THB 17,500, which directly rais

A significant shift in Thailand’s investment compliance framework has been introduced under Announcement No. 8/2569 by the Thailand Board of Investment, bringing a more structured and rigorous approach to how BOI-promoted companies monitor and report their operational progress, as businesses are now required to follow a quarterly e-Monitoring reporting cycle, submitting detailed reports four times per year within 60 days after the end of each quarter—covering periods ending i