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Vietnam: Guidance on various provisions under corporate income tax law

Circular No. 20/2026/TT-BTC issued March 12, 2026

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March 18, 2026

The Ministry of Finance on March 12, 2026, issued Circular No. 20/2026/TT-BTC, providing detailed guidance under the Law on Corporate Income Tax (CIT) No. 67/2025/QH15 and Decree No. 320/2025/ND-CP regarding:

  • Documentation requirements for certain deductible expenses
  • Reporting for CIT incentives in certain circumstances
  • Timing for determining taxable revenue in certain specific cases
  • Reporting for tax declaration and payment for Vietnamese enterprises investing abroad
  • CIT for foreign enterprises conducting business in Vietnam
  • Tax administration requirement related to expansion investment projects and the Science and Technology Development Fund

Read a March 2026 report prepared by the KPMG member firm in Vietnam

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