
Official Letter No. 4093/CT-CS dated September 29, 2025, issued by the Tax Department on the principles for using enterprises’ Science and Technology Development Fund
Official Letter No. 4093/CT-CS dated September 29, 2025, issued by the Tax Department on the principles for using enterprises’ Science

Official Letter No. 4169/CT-CS dated October 2, 2025, issued by the Tax Department regarding the time of invoice issuance
Official Letter No. 4169/CT-CS dated October 2, 2025, issued by the Tax Department regarding the time of invoice issuance: by

Official Letter No. 25426/CHQ-NVTHQ dated September 22, 2025 of the Ministry of Finance regarding Value-Added Tax (VAT) on exported goods returned by foreign parties
Official Letter No. 25426/CHQ-NVTHQ dated September 22, 2025 of the Ministry of Finance regarding Value-Added Tax (VAT) on exported goods

Official Letter No. 4094/CT-CS dated September 29, 2025 of the Ministry of Finance regarding personal income tax (PIT) finalization from salaries and wages
Official Letter No. 4094/CT-CS dated September 29, 2025 of the Ministry of Finance regarding personal income tax (PIT) finalization from

Official Letter No. 782/CMA-QLDN2 dated September 19, 2025, issued by the Ca Mau Provincial Tax Department regarding value-added tax (VAT) policy
Official Letter No. 782/CMA-QLDN2 dated September 19, 2025, issued by the Ca Mau Provincial Tax Department regarding value-added tax (VAT)

Official Letter No. 3924/CT-NVT dated September 19, 2025, issued by the Ministry of Finance regarding the use of invoices on a per-transaction basis in cases where the tax authority enforces suspension of invoice usage
Official Letter No. 3924/CT-NVT dated September 19, 2025, issued by the Ministry of Finance regarding the use of invoices on

Official Letter No. 3967/CT-CS dated September 22, 2025 of the Tax Department regarding VAT policy
Official Letter No. 3967/CT-CS dated September 22, 2025 of the Tax Department regarding VAT policy is as follows: by KMC

Official Letter No. 3955/CT-CS dated September 19, 2025 of the Tax Department regarding electronic invoices
Official Letter No. 3955/CT-CS dated September 19, 2025 of the Tax Department regarding electronic invoices: by KMC Consulting Company Limited