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Revenue Code Section 40 — Categories of assessable income
Revenue Code (ประมวลรัษฎากร) — Section 40.
Plain-English Summary
Income for personal income tax purposes is divided into eight categories: (1) employment income, (2) income from a position or services rendered, (3) goodwill / copyrights / annuities, (4) interest / dividends / capital gains / loan interest, (5) rental income, (6) income from liberal professions, (7) income from contracts of work, and (8) income from business, commerce, agriculture etc. The category determines available deductions and the rate of any withholding tax.
Context
This section sits within Chapter III — Personal Income Tax of the Revenue Code. It should be read together with the surrounding provisions and any applicable Ministerial Regulations, Royal Decrees or Revenue Department / Police orders that elaborate the detail.
Official Text
Official Thai text at the Royal Gazette / Office of the Council of State. Translation summary only.
Consult official sourceParent Statute
Revenue Code
ประมวลรัษฎากร · B.E. 2481 (1938)
The Revenue Code is the primary tax statute of Thailand. It governs personal income tax (PIT), corporate income tax (CIT), value added tax (VAT), specific business tax (SBT) and stamp duty. The Code is administered by the Revenue Department of the Ministry of Finance and is regularly supplemented by Revenue Department Notifications (Por.), Departmental Instructions, and Royal Decrees that grant exemptions or set detailed thresholds.
The summary above is a plain-English educational paraphrase of Section 40 of the Revenue Code. It is not an authoritative translation. For the binding Thai text, consult the Royal Gazette or the Office of the Council of State. Educational use only — not a substitute for advice from a Thai-qualified lawyer.
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