{"id":5058,"date":"2026-09-04T16:01:49","date_gmt":"2026-09-04T09:01:49","guid":{"rendered":"https:\/\/giaodichlienket.man.net.vn\/?p=5058"},"modified":"2026-09-04T16:01:49","modified_gmt":"2026-09-04T09:01:49","slug":"cong-van-6487-ct-qlnt","status":"publish","type":"post","link":"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/","title":{"rendered":"Official document 6487\/CT-QLNT provides guidance on handling interest expense in related-party transactions."},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official Letter 6487\/CT-QLNT issued by the Tax Department on August 28, 2026, is a document directly addressing the difficulties faced by the business community regarding the determination and handling of interest expense in related-party transactions. <\/span><strong><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/thuvienphapluat.vn\/van-ban\/Doanh-nghiep\/Nghi-dinh-255-2026-ND-CP-quan-ly-thue-giao-dich-lien-ket-cua-doanh-nghiep-co-quan-he-lien-ket-713416.aspx\" rel=\"nofollow noopener\" target=\"_blank\">Decree 255\/2026\/ND-CP<\/a><\/span><\/strong><span style=\"font-weight: 400;\">. With the chief accountant and CFO preparing for the 2026 corporate income tax return, this is the official basis for answering a seemingly simple but highly debated question: should businesses treat interest expense under the 30% EBITDA threshold, and what criteria should be used to reach this conclusion? The article below summarizes the entire content. <\/span><strong><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/luatvietnam.vn\/thue\/cong-van-6487-ct-qlnt-2026-cua-cuc-thue-ve-tra-loi-vuong-mac-cua-doanh-nghiep-446288-d6.html\" rel=\"nofollow noopener\" target=\"_blank\">Official Document 6487\/CT-QLNT<\/a><\/span><\/strong><span style=\"font-weight: 400;\">, In accordance with Clause 3, Article 16 of Decree 255\/2026\/ND-CP, and highlighting points that businesses need to pay attention to immediately before the closing date.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Index<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Cong_van_6487CT-QLNT_la_gi\" >What is Official Document 6487\/CT-QLNT?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Noi_dung_cot_loi_cua_Cong_van_6487CT-QLNT_ve_xu_ly_chi_phi_lai_vay\" >The core content of Official Letter 6487\/CT-QLNT regarding the handling of interest expense.<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Nguyen_tac_xac_dinh_quan_he_lien_ket_khong_phu_thuoc_muc_dich_chuyen_gia\" >The principle for determining related-party relationships is independent of the purpose of transfer pricing.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Can_cu_khoan_3_Dieu_16_Nghi_dinh_2552026ND-CP\" >Based on Clause 3, Article 16 of Decree 255\/2026\/ND-CP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Chi_phi_lai_vay_khong_duoc_tru_duoc_xac_dinh_nhu_the_nao\" >How are non-deductible interest expenses determined?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Cuc_Thue_noi_gi_trong_Cong_van_6487CT-QLNT\" >What did the Tax Department say in Official Letter 6487\/CT-QLNT?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Doanh_nghiep_can_lam_gi_khi_co_Cong_van_6487CT-QLNT_co_hieu_luc\" >What should businesses do when Circular 6487\/CT-QLNT comes into effect?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Co_so_du_lieu_su_dung_khi_ke_khai_xac_dinh_gia_giao_dich_lien_ket_theo_Nghi_dinh_2552026ND-CP\" >The database used when declaring and determining transfer pricing according to Decree 255\/2026\/ND-CP.<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Checklist_nhanh_sau_khi_doc_Cong_van_6487CT-QLNT\" >Quick checklist after reading Official Document 6487\/CT-QLNT<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Ket_luan\" >Conclude<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Thong_tin_lien_he_MAN_%E2%80%93_Master_Accountant_Network\" >Contact information MAN \u2013 Master Accountant Network<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Cau_hoi_thuong_gap_ve_Cong_van_6487CT-QLNT\" >Frequently Asked Questions about Official Document 6487\/CT-QLNT<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Cong_van_6487CT-QLNT_do_co_quan_nao_ban_hanh_va_khi_nao\" >When was Official Document 6487\/CT-QLNT issued?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Cong_van_6487CT-QLNT_co_phai_van_ban_quy_pham_phap_luat_khong\" >Is Official Document 6487\/CT-QLNT a legal normative document?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Theo_Cong_van_6487CT-QLNT_doanh_nghiep_khong_co_muc_dich_chuyen_gia_co_duoc_mien_ap_dung_nguong_30_EBITDA_khong\" >According to Official Letter 6487\/CT-QLNT, are businesses that do not intend to engage in transfer pricing exempt from applying the 30% EBITDA threshold?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Cong_van_6487CT-QLNT_co_dua_ra_co_che_xac_nhan_truoc_cho_giao_dich_phuc_tap_khong\" >Does Official Document 6487\/CT-QLNT provide a mechanism for pre-confirmation of complex transactions?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Chi_phi_lai_vay_khong_duoc_tru_theo_Cong_van_6487CT-QLNT_duoc_xac_dinh_nhu_the_nao\" >How are non-deductible interest expenses determined according to Official Letter 6487\/CT-QLNT?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Doanh_nghiep_co_quan_he_lien_ket_nhung_khong_phat_sinh_giao_dich_lien_ket_trong_ky_co_ap_dung_Cong_van_6487CT-QLNT_khong\" >Do businesses with related parties but no related-party transactions during the period apply Circular 6487\/CT-QLNT?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-van-6487-ct-qlnt\/#Co_so_du_lieu_nao_duoc_dung_de_xac_dinh_gia_giao_dich_lien_ket_chung_minh_lai_suat_vay_hop_ly\" >What database is used to determine transfer pricing and demonstrate reasonable interest rates on loans?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cong_van_6487CT-QLNT_la_gi\"><\/span><b>What is Official Document 6487\/CT-QLNT?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official Letter 6487\/CT-QLNT of 2026 is a document issued by the Tax Department on August 28, 2026, responding to a request from the Vietnam Young Entrepreneurs Association regarding the review of how to determine and handle interest expense in related-party transactions. This is not a new legal document, but rather a professional guidance document explaining how to apply Clause 3, Article 16 of Decree 255\/2026\/ND-CP to the practical application of related-party transactions.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">For professionals in the field, the greatest value of Circular 6487\/CT-QLNT lies in its official written confirmation of a principle that many businesses still misunderstand or deliberately manipulate: determining related-party relationships and applying tax management regulations to related-party transactions does not depend on whether or not the business intends to engage in transfer pricing or tax evasion. In other words, a loan that is entirely for legitimate business purposes, not aimed at tax evasion, can still be subject to interest expense limitations if it meets the criteria for related-party relationships as stipulated by law.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Noi_dung_cot_loi_cua_Cong_van_6487CT-QLNT_ve_xu_ly_chi_phi_lai_vay\"><\/span><b>The core content of Official Letter 6487\/CT-QLNT regarding the handling of interest expense.<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_5065\" aria-describedby=\"caption-attachment-5065\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5065\" src=\"https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Noi-dung-cot-loi-cua-Cong-van-6487_CT-QLNT-ve-xu-ly-chi-phi-lai-vay.jpg\" alt=\"N\u1ed9i dung c\u1ed1t l\u00f5i c\u1ee7a C\u00f4ng v\u0103n 6487\/CT-QLNT v\u1ec1 x\u1eed l\u00fd chi ph\u00ed l\u00e3i vay\" width=\"1200\" height=\"675\" srcset=\"https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Noi-dung-cot-loi-cua-Cong-van-6487_CT-QLNT-ve-xu-ly-chi-phi-lai-vay.jpg 1200w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Noi-dung-cot-loi-cua-Cong-van-6487_CT-QLNT-ve-xu-ly-chi-phi-lai-vay-300x169.jpg 300w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Noi-dung-cot-loi-cua-Cong-van-6487_CT-QLNT-ve-xu-ly-chi-phi-lai-vay-1024x576.jpg 1024w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Noi-dung-cot-loi-cua-Cong-van-6487_CT-QLNT-ve-xu-ly-chi-phi-lai-vay-768x432.jpg 768w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Noi-dung-cot-loi-cua-Cong-van-6487_CT-QLNT-ve-xu-ly-chi-phi-lai-vay-18x10.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-5065\" class=\"wp-caption-text\">The core content of Official Letter 6487\/CT-QLNT regarding the handling of interest expense.<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Nguyen_tac_xac_dinh_quan_he_lien_ket_khong_phu_thuoc_muc_dich_chuyen_gia\"><\/span><b>The principle for determining related-party relationships is independent of the purpose of transfer pricing.<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The first and most important point affirmed by Circular 6487\/CT-QLNT is that the determination of related-party relationships and the application of tax management regulations to related-party transactions are carried out on the basis of criteria regarding ownership, control, operation, and transactions between related parties as prescribed by law, regardless of whether the enterprise has or does not have the purpose of transfer pricing or tax evasion.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">This is a fundamental statement with significant practical implications. Many businesses, especially family-owned businesses, borrow from each other within the same ecosystem for purely liquidity reasons, often arguing that their loans are \u201cnot intended to avoid taxes\u201d and therefore do not require a threshold. As long as they meet the criteria regarding ownership, control, operation, or transactions as stipulated in Article 5 of Decree 255\/2026\/ND-CP, the business is within the scope of application, regardless of the actual motive behind the loan transaction.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Can_cu_khoan_3_Dieu_16_Nghi_dinh_2552026ND-CP\"><\/span><b>Based on Clause 3, Article 16 of Decree 255\/2026\/ND-CP<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official document 6487\/CT-QLNT quotes almost verbatim the provision in Clause 3, Article 16 of Decree 255\/2026\/ND-CP:<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">The total interest expense after deducting interest on deposits and loans incurred during the period is deductible when determining taxable income for corporate income tax purposes, provided it does not exceed the total net profit from business operations during the period plus interest expense after deducting interest on deposits and loans incurred during the period plus depreciation expense incurred during the period of the taxpayer. The regulations also specify certain cases where this provision does not apply.<\/span><\/p><\/blockquote>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The fact that Official Letter 6487\/CT-QLNT reiterates the full formula, instead of merely referring to specific clauses, shows that the tax authorities want businesses to understand that the 30% EBITDA threshold calculation formula is a unified whole, not to be separated into individual parts for their own benefit.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official document 6487\/CT-QLNT also clearly states:<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">In cases where businesses have related-party relationships and related-party transactions occur, interest expenses are deductible when determining expenses for corporate income tax purposes, as stipulated in Article 16 of Decree 255\/2026\/ND-CP.<\/span><\/p><\/blockquote>\n<p style=\"text-align: justify;\"><b>Key details to note:<\/b><span style=\"font-weight: 400;\"> Both conditions must be met within the tax period for the threshold to be applied.<\/span><\/p>\n<blockquote><p><b>See also:<\/b> <strong><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/diem-moi-nghi-dinh-255-2026-nd-cp\/\">New points in Decree 255\/2026\/ND-CP regarding related-party transactions.<\/a><\/span><\/strong><\/p><\/blockquote>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Chi_phi_lai_vay_khong_duoc_tru_duoc_xac_dinh_nhu_the_nao\"><\/span><b>How are non-deductible interest expenses determined?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Non-deductible interest expense in related-party transactions is the portion of total interest expense after deducting interest on deposits and loans incurred during the period that exceeds the amount of total net profit from business operations plus net interest expense plus depreciation expense incurred during the period. This can be rewritten as a practical formula:<\/span><\/p>\n<table style=\"width: 100%; border-color: #000000;\" border=\"1\" cellspacing=\"2\" cellpadding=\"12\">\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">Net interest expense = Interest expense incurred during the period \u2013 (Interest on deposits + Interest expense on loans incurred during the period)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">EBITDA is then determined:<\/span><\/p>\n<table style=\"width: 100%; border-color: #000000;\" border=\"1\" cellspacing=\"2\" cellpadding=\"12\">\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">Taxable EBITDA = Net operating profit + Net interest expense + Depreciation expense<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Deduction threshold:<\/span><\/p>\n<table style=\"width: 100%; border-color: #000000;\" border=\"1\" cellspacing=\"2\" cellpadding=\"12\">\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">Deduction threshold = 30% x Taxable EBITDA<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><b>Non-deductible portion:<\/b><\/p>\n<table style=\"width: 100%; border-color: #000000;\" border=\"1\" cellspacing=\"2\" cellpadding=\"12\">\n<tbody>\n<tr>\n<td>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">Non-deductible portion = Net interest expense \u2013 Deductible threshold<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to point b, clause 3, Article 16 of Circular 6487\/CT-QLNT, this non-deductible portion of interest expense may be carried forward to the next tax period when determining the total deductible interest expense, provided that the total deductible interest expense incurred in the next tax period is lower than the limit. The continuous carry-forward period shall not exceed 5 years from the year following the year in which the non-deductible interest expense was incurred.<\/span><\/p>\n<blockquote><p><b>See also:<\/b> <strong><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/cong-thuc-tinh-lai-vay\/\">Formula for calculating interest on related-party transactions.<\/a><\/span><\/strong><\/p><\/blockquote>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cuc_Thue_noi_gi_trong_Cong_van_6487CT-QLNT\"><\/span><b>What did the Tax Department say in Official Letter 6487\/CT-QLNT?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Besides reiterating the formula and principles for determining related-party relationships, Circular 6487\/CT-QLNT also directly responds to businesses&#039; proposals regarding mechanisms for exchanging, confirming, or providing advance guidance on complex transactions. This is especially important for transactions that are complex, newly arising, or have unique economic characteristics, aiming to increase transparency and facilitate taxpayers in determining and fulfilling their tax obligations correctly.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">This means that at the time Circular 6487\/CT-QLNT was issued, Vietnam did not yet have a separate advance pricing agreement (APA) or pre-confirmation mechanism for handling interest expense in related-party transactions under Decree 255\/2026\/ND-CP. Businesses should not wait for specific guidance for each case, but should compare their transactions with Clause 3 of Article 16 and the criteria in Article 5 to determine their obligations themselves, and keep complete explanatory documents for future inspections.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Doanh_nghiep_can_lam_gi_khi_co_Cong_van_6487CT-QLNT_co_hieu_luc\"><\/span><b>What should businesses do when Circular 6487\/CT-QLNT comes into effect?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_5066\" aria-describedby=\"caption-attachment-5066\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5066\" src=\"https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Doanh-nghiep-can-lam-gi-khi-co-Cong-van-6487_CT-QLNT-co-hieu-luc.jpg\" alt=\"Doanh nghi\u1ec7p c\u1ea7n l\u00e0m g\u00ec khi c\u00f3 C\u00f4ng v\u0103n 6487\/CT-QLNT c\u00f3 hi\u1ec7u l\u1ef1c\" width=\"1200\" height=\"675\" srcset=\"https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Doanh-nghiep-can-lam-gi-khi-co-Cong-van-6487_CT-QLNT-co-hieu-luc.jpg 1200w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Doanh-nghiep-can-lam-gi-khi-co-Cong-van-6487_CT-QLNT-co-hieu-luc-300x169.jpg 300w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Doanh-nghiep-can-lam-gi-khi-co-Cong-van-6487_CT-QLNT-co-hieu-luc-1024x576.jpg 1024w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Doanh-nghiep-can-lam-gi-khi-co-Cong-van-6487_CT-QLNT-co-hieu-luc-768x432.jpg 768w, https:\/\/giaodichlienket.man.net.vn\/wp-content\/uploads\/2026\/09\/Doanh-nghiep-can-lam-gi-khi-co-Cong-van-6487_CT-QLNT-co-hieu-luc-18x10.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-5066\" class=\"wp-caption-text\">What should businesses do when Circular 6487\/CT-QLNT comes into effect?<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">More importantly, translate the content of the document into concrete actions before the closing date. Here are some things businesses should do immediately:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Firstly, review all loan transactions from the perspective of related-party relationships, not based on the purpose of capital use: According to the spirit of Official Letter 6487\/CT-QLNT, a loan between a parent-subsidiary company or between companies with a common controlling shareholder is still subject to Article 16, even if the purpose of the loan is to supplement ordinary working capital and is not related to tax optimization.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secondly, reconfirm the relationship criteria under Article 5 for each lending partner: It is necessary to check the equity ownership ratio, guarantees, loans and borrowings with individual managers, and especially the double threshold of &quot;25% equity capital and over 50% total medium- and long-term debt&quot; for guaranteed loans or loans of any kind.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Thirdly, recalculate the net interest expense according to the formula referenced in Circular 6487\/CT-QLNT, avoiding confusion between pre-tax profit and net profit from business operations: This is the most common technical error that causes inaccurate calculation results for the 30% EBITDA threshold.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fourth, prepare supporting documents for each conclusion: Since Official Letter 6487\/CT-QLNT confirms that the application does not depend on the subjective purpose of the enterprise, the explanatory documents must be based on objective evidence (loan agreements, ownership structure, board meeting minutes) and not on statements about the purpose of capital use.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fifth, continue monitoring supplementary guidance documents: Since Circular 6487\/CT-QLNT indicates that the mechanism for providing advance guidance on complex transactions is still under development, businesses with complex related-party loan transactions should proactively update themselves on subsequent circulars from the Tax Department, instead of applying them once and then disregarding them.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Co_so_du_lieu_su_dung_khi_ke_khai_xac_dinh_gia_giao_dich_lien_ket_theo_Nghi_dinh_2552026ND-CP\"><\/span><b>The database used when declaring and determining transfer pricing according to Decree 255\/2026\/ND-CP.<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Another point often found alongside Official Letter 6487\/CT-QLNT when businesses search for information on related-party transactions is the provision in Clause 1, Article 17 of Decree 255\/2026\/ND-CP regarding the database used in declaring and determining the price of related-party transactions. Accordingly, the database includes:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Commercial databases as stipulated in Clause 15, Article 4 of the 2025 Tax Administration Law and other legal documents on tax administration;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Information and data of businesses are publicly disclosed on the stock market;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Information and data published on domestic and international commodity and service exchanges;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Information from the national database; information from domestic ministries and agencies or other official sources that are publicly available.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Although this content is not directly included in Official Letter 6487\/CT-QLNT, it is closely related: if the interest rate on loans between related parties does not conform to the arm&#039;s length principle, the tax authorities can use the aforementioned databases to determine a reasonable interest rate before applying the 30% EBITDA threshold as per Article 16. Therefore, businesses should consider preparing data comparing market interest rates as an integral part of handling interest expense in related-party transactions.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Checklist_nhanh_sau_khi_doc_Cong_van_6487CT-QLNT\"><\/span><b>Quick checklist after reading Official Document 6487\/CT-QLNT<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Here&#039;s a quick checklist for businesses:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Review all internal loans based on the criteria of related party relationship as stipulated in Article 5, not on the purpose of capital use.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Apply the correct formula as stated in Clause 3, Article 16, as referenced in Official Letter 6487\/CT-QLNT, clearly distinguishing between the numerator and the denominator.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Prepare objective documentation (contracts, ownership structure, resolutions) instead of just explaining based on subjective motives.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Update market interest rate comparison data in accordance with Article 17 to protect internal lending rates.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Establish a process for tracking subsequent guidance documents related to complex transactions.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span><b>Conclude<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official document 6487\/CT-QLNT does not create new regulations, but it has significant practical value because it officially resolves two of the most debated issues among businesses: the application of the interest expense limit under Clause 3, Article 16 of Decree 255\/2026\/ND-CP, which does not depend on the subjective purpose of the business, and the mechanism for providing advance guidance on complex transactions, which is still under development and not yet officially implemented.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">If businesses are still unsure about applying Circular 6487\/CT-QLNT and Decree 255\/2026\/ND-CP to their specific interest expense documentation, MAN \u2013 Master Accountant Network&#039;s team of related party transaction experts is ready to work with businesses to review, compare, and finalize the documentation before the tax settlement period.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/giaodichlienket.man.net.vn\/en\/lien-he\/\">Contact MAN \u2013 Master Accountant Network<\/a><\/span><\/strong><span style=\"font-weight: 400;\"> For free support and advice!<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Thong_tin_lien_he_MAN_%E2%80%93_Master_Accountant_Network\"><\/span><b>Contact information MAN \u2013 Master Accountant Network<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Address:<\/b><span style=\"font-weight: 400;\"> No. 19A, Street 43, Tan Thuan Ward, Ho Chi Minh City<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Mobile\/Zalo:<\/b><span style=\"font-weight: 400;\"> 0903 963 163 \u2013 0903 428 622<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>E-mail:<\/b><span style=\"font-weight: 400;\"> man@man.net.vn<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Google Business Profile:<\/b> <a href=\"https:\/\/share.google\/EmihzHg354pCASC9k\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\"><strong><span style=\"color: #0000ff;\">View MAN \u2013 Master Accountant Network&#039;s Google Business Profile<\/span><\/strong>\u00a0<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>LinkedIn Founder:<\/b> <a href=\"https:\/\/www.linkedin.com\/in\/tuy%C3%AAn-l%C3%AA-ho%C3%A0ng-65292aa0\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-weight: 400;\"><strong><span style=\"color: #0000ff;\">View expert Le Hoang Tuyen&#039;s LinkedIn profile.<\/span><\/strong>\u00a0<\/span><\/a><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Responsible for production and professional content review by: Mr. <\/span><strong><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/man.net.vn\/le-hoang-tuyen\/\" rel=\"nofollow noopener\" target=\"_blank\">Le Hoang Tuyen \u2013 Founder &amp; CEO of MAN \u2013 Master Accountant Network<\/a><\/span><\/strong><span style=\"font-weight: 400;\">. He is a CPA Vietnam auditor with over 30 years of in-depth experience in accounting, auditing, taxation, and corporate legal consulting.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap_ve_Cong_van_6487CT-QLNT\"><\/span><b>Frequently Asked Questions about Official Document 6487\/CT-QLNT<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cong_van_6487CT-QLNT_do_co_quan_nao_ban_hanh_va_khi_nao\"><\/span><b>When was Official Document 6487\/CT-QLNT issued?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official document 6487\/CT-QLNT issued by the Tax Department on August 28, 2026, responds to the request of the Vietnam Young Entrepreneurs Association regarding the handling of interest expense in related-party transactions.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cong_van_6487CT-QLNT_co_phai_van_ban_quy_pham_phap_luat_khong\"><\/span><b>Is Official Document 6487\/CT-QLNT a legal normative document?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">No. Official Letter 6487\/CT-QLNT is an administrative document responding to a request, providing guidance on the application of Clause 3, Article 16 of Decree 255\/2026\/ND-CP, and is not a legal document promulgating new regulations.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Theo_Cong_van_6487CT-QLNT_doanh_nghiep_khong_co_muc_dich_chuyen_gia_co_duoc_mien_ap_dung_nguong_30_EBITDA_khong\"><\/span><b>According to Official Letter 6487\/CT-QLNT, are businesses that do not intend to engage in transfer pricing exempt from applying the 30% EBITDA threshold?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">No. Official document 6487\/CT-QLNT affirms that the determination of related-party relationships and the application of tax management regulations are based on ownership, control, operation, and transaction criteria, regardless of whether the enterprise intends to engage in transfer pricing or tax evasion.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Cong_van_6487CT-QLNT_co_dua_ra_co_che_xac_nhan_truoc_cho_giao_dich_phuc_tap_khong\"><\/span><b>Does Official Document 6487\/CT-QLNT provide a mechanism for pre-confirmation of complex transactions?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Not yet. Official document 6487\/CT-QLNT states that the proposal regarding the mechanism for prior exchange, confirmation, or guidance is being considered and will continue to be monitored for improvement during the implementation of Decree 255\/2026\/ND-CP, and has not yet come into official effect.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Chi_phi_lai_vay_khong_duoc_tru_theo_Cong_van_6487CT-QLNT_duoc_xac_dinh_nhu_the_nao\"><\/span><b>How are non-deductible interest expenses determined according to Official Letter 6487\/CT-QLNT?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">This is the portion of total interest expense after deducting interest on deposits and loans incurred during the period that exceeds 30% of total net profit from business operations plus net interest expense plus depreciation expense incurred during the period, in accordance with Clause 3, Article 16 of Decree 255\/2026\/ND-CP.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Doanh_nghiep_co_quan_he_lien_ket_nhung_khong_phat_sinh_giao_dich_lien_ket_trong_ky_co_ap_dung_Cong_van_6487CT-QLNT_khong\"><\/span><b>Do businesses with related parties but no related-party transactions during the period apply Circular 6487\/CT-QLNT?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">No. Official document 6487\/CT-QLNT clearly states that deductible interest expenses under Article 16 only apply when the enterprise has both related-party transactions and related-party transactions during the period \u2013 both conditions must be met.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Co_so_du_lieu_nao_duoc_dung_de_xac_dinh_gia_giao_dich_lien_ket_chung_minh_lai_suat_vay_hop_ly\"><\/span><b>What database is used to determine transfer pricing and demonstrate reasonable interest rates on loans?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to Clause 1, Article 17 of Decree 255\/2026\/ND-CP, the database includes commercial databases, information of enterprises published on the stock market, information on domestic and international commodity and service exchanges, and information from the National Database or other official sources.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng v\u0103n 6487\/CT-QLNT do C\u1ee5c Thu\u1ebf ban h\u00e0nh ng\u00e0y 28\/8\/2026 l\u00e0 v\u0103n b\u1ea3n tr\u1ea3 l\u1eddi tr\u1ef1c ti\u1ebfp v\u01b0\u1edbng m\u1eafc c\u1ee7a c\u1ed9ng \u0111\u1ed3ng doanh nghi\u1ec7p v\u1ec1 c\u00e1ch x\u00e1c \u0111\u1ecbnh v\u00e0 x\u1eed l\u00fd chi ph\u00ed l\u00e3i vay trong giao d\u1ecbch li\u00ean k\u1ebft theo Ngh\u1ecb \u0111\u1ecbnh 255\/2026\/N\u0110-CP. V\u1edbi k\u1ebf to\u00e1n tr\u01b0\u1edfng v\u00e0 CFO \u0111ang chu\u1ea9n b\u1ecb quy\u1ebft to\u00e1n [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":5064,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/posts\/5058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/comments?post=5058"}],"version-history":[{"count":2,"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/posts\/5058\/revisions"}],"predecessor-version":[{"id":5067,"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/posts\/5058\/revisions\/5067"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/media\/5064"}],"wp:attachment":[{"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/media?parent=5058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/categories?post=5058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/giaodichlienket.man.net.vn\/en\/wp-json\/wp\/v2\/tags?post=5058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}