Official Letter No. 5746/CT-CS dated 10 August 2026 issued by the Tax Department introduces several new contents of Circular No. 89/2026/TT-BTC, which provides detailed guidance on certain articles of the Law on Tax Administration.
Official Letter No. 2231/CST-TN dated 31 July 2026, issued by the Department of Tax, Fee and Charge Policy Management and Supervision (Ministry of Finance), introduces certain new provisions of Decree No. 253/2026/ND-CP and Circular No. 87/2026/TT-BTC guiding the implementation of the Law on Personal Income Tax (“PIT”) No. 109/2025/QH15 (both issued on 30 June 2026).









