{"id":7680,"date":"2026-08-28T16:05:27","date_gmt":"2026-08-28T09:05:27","guid":{"rendered":"https:\/\/thue.man.net.vn\/?p=7680"},"modified":"2026-08-28T16:05:27","modified_gmt":"2026-08-28T09:05:27","slug":"cong-van-4592-khh-qldn1","status":"publish","type":"post","link":"https:\/\/thue.man.net.vn\/en\/cong-van-4592-khh-qldn1\/","title":{"rendered":"Official Document 4592\/KHH-QLDN1: Guidance on procedures for changing the accounting period."},"content":{"rendered":"<p style=\"text-align: justify;\"><a href=\"https:\/\/thuvienphapluat.vn\/hoi-dap-phap-luat\/cong-van-4592khhqldn1-ngay-2582026-huong-dan-thu-tuc-khi-thay-doi-ky-ke-toan-nam-chi-tiet-the-nao-138102012.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Official Document 4592\/KHH-QLDN1<\/span><\/a><span style=\"font-weight: 400;\"> The document issued by the Khanh Hoa Provincial Tax Department on August 25, 2026, addresses businesses&#039; concerns regarding the procedures for changing the accounting year. This type of guidance document is crucial for many chief accountants and business owners to understand before adjusting their accounting year, as a single mistake in the notification process can lead to delays in tax settlement and the risk of administrative penalties.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to the 2015 Accounting Law, changing the accounting year is not simply an internal decision but requires notification to the business registration authority and the directly managing tax authority. This article, compiled from a professional perspective, is presented below. <\/span><b>MAN \u2013 Master Accountant Network<\/b><span style=\"font-weight: 400;\">, A tax, accounting, and auditing consulting firm with over 30 years of practical experience in Vietnam, provides a comprehensive analysis of the content of Official Letter 4592\/KHH-QLDN1, highlighting key timelines and common business risks.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Summary of key points in Official Letter 4592\/KHH-QLDN1<\/b><\/h2>\n<figure id=\"attachment_7683\" aria-describedby=\"caption-attachment-7683\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7683\" src=\"https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Tom-tat-trong-tam-ve-Cong-van-4592_KHH-QLDN1.jpg\" alt=\"T\u00f3m t\u1eaft tr\u1ecdng t\u00e2m v\u1ec1 C\u00f4ng v\u0103n 4592\/KHH-QLDN1\" width=\"1200\" height=\"675\" srcset=\"https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Tom-tat-trong-tam-ve-Cong-van-4592_KHH-QLDN1.jpg 1200w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Tom-tat-trong-tam-ve-Cong-van-4592_KHH-QLDN1-300x169.jpg 300w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Tom-tat-trong-tam-ve-Cong-van-4592_KHH-QLDN1-1024x576.jpg 1024w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Tom-tat-trong-tam-ve-Cong-van-4592_KHH-QLDN1-768x432.jpg 768w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Tom-tat-trong-tam-ve-Cong-van-4592_KHH-QLDN1-18x10.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-7683\" class=\"wp-caption-text\">Summary of key points in Official Letter 4592\/KHH-QLDN1<\/figcaption><\/figure>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Official document 4592\/KHH-QLDN1 is a professional guidance document issued by the Khanh Hoa Provincial Tax Department on August 25, 2026, regarding the procedure for changing the accounting year.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Applicable to: Businesses that need to change their accounting year (calendar year to another fiscal year or vice versa).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Main content: Regulations specify two groups of procedures: notification of changes to tax registration and tax settlement for the transition year.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Important deadline: The deadline for submitting tax return documents for the transitional year is no later than the last day of the third month from the end of the tax period (except for personal income tax returns).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Special note: The personal income tax settlement period remains the same as the calendar year and does not change with the company&#039;s new accounting period.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><b>What is Official Document 4592\/KHH-QLDN1? What is its basis for issuance and scope of application?<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official Letter 4592\/KHH-QLDN1 is an administrative document providing professional guidance, not a legal regulation. In other words, it is the official response from the provincial tax authority to a specific situation raised by the business in its inquiry, based on citing and applying current regulations to the actual case.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The document was issued by the Khanh Hoa Provincial Tax Department on August 25, 2026, based on the following legal framework: <\/span><a href=\"https:\/\/thuvienphapluat.vn\/van-ban\/Ke-toan-Kiem-toan\/Luat-ke-toan-2015-298369.aspx\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Accounting Law 2015<\/span><\/a><span style=\"font-weight: 400;\">, the Law on Tax Administration and the Law on Corporate Income Tax. The scope of application of this document is limited to businesses that have a need to change their accounting year, i.e., change the start and end dates of the accounting year compared to the regular calendar year.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Why is this a guidance document and not a new regulation?<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It is important to distinguish clearly: Official Letter 4592\/KHH-QLDN1 does not introduce new regulations but only explains how to apply current laws to the specific situation of a business in Khanh Hoa. The legal value of this type of official letter is for reference only for similar cases, but businesses still need to compare it with the original regulations in the Accounting Law and the Tax Management Law when applying them to their own situation.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Why is Official Document 4592\/KHH-QLDN1 important for businesses?<\/b><\/h2>\n<figure id=\"attachment_7684\" aria-describedby=\"caption-attachment-7684\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7684\" src=\"https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Vi-sao-Cong-van-4592_KHH-QLDN1-quan-trong-voi-doanh-nghiep.jpg\" alt=\"V\u00ec sao C\u00f4ng v\u0103n 4592\/KHH-QLDN1 quan tr\u1ecdng v\u1edbi doanh nghi\u1ec7p?\" width=\"1200\" height=\"675\" srcset=\"https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Vi-sao-Cong-van-4592_KHH-QLDN1-quan-trong-voi-doanh-nghiep.jpg 1200w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Vi-sao-Cong-van-4592_KHH-QLDN1-quan-trong-voi-doanh-nghiep-300x169.jpg 300w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Vi-sao-Cong-van-4592_KHH-QLDN1-quan-trong-voi-doanh-nghiep-1024x576.jpg 1024w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Vi-sao-Cong-van-4592_KHH-QLDN1-quan-trong-voi-doanh-nghiep-768x432.jpg 768w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Vi-sao-Cong-van-4592_KHH-QLDN1-quan-trong-voi-doanh-nghiep-18x10.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-7684\" class=\"wp-caption-text\">Why is Official Document 4592\/KHH-QLDN1 important for businesses?<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Changing the accounting year is a decision that has a ripple effect on the entire financial reporting, tax filing, and tax settlement system of a business. If the notification process is not followed correctly, businesses may encounter difficulties when tax authorities compare declared data with the end-of-year data.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">From this perspective <\/span><b>MAN \u2013 Master Accountant Network<\/b><span style=\"font-weight: 400;\">, Based on practical experience advising many foreign-invested enterprises in Vietnam, one of the common reasons why businesses are questioned about their records during tax settlement is that they notify the authorities of changes to the accounting period later than the actual implementation date. Circular 4592\/KHH-QLDN1 clarifies this procedure, minimizing the risk of discrepancies between registration documents and tax settlement documents.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Which entities are affected by Official Letter 4592\/KHH-QLDN1?<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The guidelines in this document apply to the following groups of businesses:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The company plans to shift its accounting year from a calendar year to a different fiscal year (for example, from April 1st to March 31st of the following year) to synchronize with its parent company overseas or to suit its specific production and business cycle.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Businesses undergoing restructuring, mergers, or changes in legal form may require changes to the accounting closing date.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The chief accountant and financial director are responsible for preparing the financial statements and tax returns of a business when there are changes in the accounting period.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tax, accounting, and auditing consulting firms assist businesses in carrying out tax notification and settlement procedures for the transition year.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It is important to note that the official document does not apply to changes in the personal income tax calculation period, because the period <\/span><a href=\"https:\/\/thue.man.net.vn\/quyet-toan-thue-tncn\/\"><span style=\"font-weight: 400;\">personal income tax settlement<\/span><\/a><span style=\"font-weight: 400;\"> It is always determined according to the calendar year regardless of how the business changes its accounting period.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>What is the procedure for changing the accounting year according to Official Letter 4592\/KHH-QLDN1?<\/b><\/h2>\n<figure id=\"attachment_7682\" aria-describedby=\"caption-attachment-7682\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-7682\" src=\"https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Thu-tuc-thay-doi-ky-ke-toan-nam-theo-Cong-van-4592_KHH-QLDN1-thuc-hien-ra-sao.jpg\" alt=\"Th\u1ee7 t\u1ee5c thay \u0111\u1ed5i k\u1ef3 k\u1ebf to\u00e1n n\u0103m theo C\u00f4ng v\u0103n 4592\/KHH-QLDN1 th\u1ef1c hi\u1ec7n ra sao?\" width=\"1200\" height=\"675\" srcset=\"https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Thu-tuc-thay-doi-ky-ke-toan-nam-theo-Cong-van-4592_KHH-QLDN1-thuc-hien-ra-sao.jpg 1200w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Thu-tuc-thay-doi-ky-ke-toan-nam-theo-Cong-van-4592_KHH-QLDN1-thuc-hien-ra-sao-300x169.jpg 300w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Thu-tuc-thay-doi-ky-ke-toan-nam-theo-Cong-van-4592_KHH-QLDN1-thuc-hien-ra-sao-1024x576.jpg 1024w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Thu-tuc-thay-doi-ky-ke-toan-nam-theo-Cong-van-4592_KHH-QLDN1-thuc-hien-ra-sao-768x432.jpg 768w, https:\/\/thue.man.net.vn\/wp-content\/uploads\/2026\/08\/Thu-tuc-thay-doi-ky-ke-toan-nam-theo-Cong-van-4592_KHH-QLDN1-thuc-hien-ra-sao-18x10.jpg 18w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-7682\" class=\"wp-caption-text\">What is the procedure for changing the accounting year according to Official Letter 4592\/KHH-QLDN1?<\/figcaption><\/figure>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to the guidelines of Khanh Hoa Provincial Tax Department, the process for changing the accounting year consists of two main groups of procedures, which must be carried out sequentially and at the right time.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Step 1: Notify the tax registration authorities of any changes to your information.<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Businesses must notify the business registration authority of changes to their tax registration information simultaneously with changes to their business registration details, as stipulated in the Law on Tax Administration. This is a mandatory step because information about the accounting year is linked to the business registration file.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Simultaneously, businesses are responsible for notifying the directly managing tax authority, specifically in this case the Khanh Hoa Provincial Tax Department, before implementing the change in the corporate income tax period, as stipulated in the Corporate Income Tax Law. Prior notification is crucial to avoid future disputes.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Step 2: Set up tax settlement for the transition year.<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">For the transitional period, specifically from January 1, 2027 to March 31, 2027 as illustrated in the example in the document, the enterprise must conduct a separate tax settlement for this short period before officially adopting the new accounting year.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The deadline for submitting tax returns for the transition period is no later than the last day of the third month from the end of the tax settlement period, which is June 30, 2026, as shown in the example in the document. This rule applies to corporate income tax returns, not personal income tax returns.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The tax settlement period for personal income tax remains based on the calendar year, i.e., from January 1st to December 31st annually, and does not change according to the company&#039;s new accounting period. This is a point of confusion for many accountants when applying two different tax periods simultaneously within the same transition year.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Summary of timelines according to Official Letter 4592\/KHH-QLDN1<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to Official Letter 4592\/KHH-QLDN1 dated August 25, 2026, businesses need to pay attention to the timelines when switching accounting periods. Accurately determining the switching time and the deadline for submitting tax returns helps businesses proactively fulfill their tax obligations, avoiding errors and late submissions. The table below summarizes the important timelines to note.<\/span><\/p>\n<table style=\"width: 100%; border-style: solid; border-color: #000000;\" border=\"1\" cellspacing=\"2\" cellpadding=\"12\">\n<caption><b>Summary of timelines according to Official Letter 4592\/KHH-QLDN1<\/b><\/caption>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><b>Content<\/b><\/td>\n<td style=\"text-align: center;\"><b>Timeline<\/b><\/td>\n<td style=\"text-align: center;\"><b>Note<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Date of issuance of the document<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">25\/8\/2026<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Tax regulations issued by Khanh Hoa province.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Accounting period transition period<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">January 1, 2027 to March 31, 2027<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">According to the example given in the document.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Deadline for submitting corporate income tax returns for the transition year.<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">30\/6\/2026<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">No later than the last day of the third month from the end of the settlement period.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Personal Income Tax Settlement Period<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">According to the Gregorian calendar<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">No change under the new accounting period<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Notification of changes to tax registration<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Before the transition<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">This should be done simultaneously with the business registration change.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"text-align: justify;\"><b>Legal documents related to Official Letter 4592\/KHH-QLDN1<\/b><\/h2>\n<p style=\"text-align: justify;\"><b>Important Note:<\/b><span style=\"font-weight: 400;\"> Official document 4592\/KHH-QLDN1 is merely a response to the specific situation in Khanh Hoa. Businesses in other localities should proactively contact their directly managing tax authorities to confirm similar application methods and to update themselves on the latest guidance documents for the 2026-2027 period.<\/span><\/p>\n<table style=\"width: 100%; border-style: solid; border-color: #000000;\" border=\"1\" cellspacing=\"2\" cellpadding=\"12\">\n<caption><b>Summary of legal documents related to Official Letter 4592\/KHH-QLDN1<\/b><\/caption>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><b>Legal documents<\/b><\/td>\n<td style=\"text-align: center;\"><b>Number \/ Date of Issue<\/b><\/td>\n<td style=\"text-align: center;\"><b>Related content<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Official Document 4592\/KHH-QLDN1<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Khanh Hoa Provincial Tax Department, August 25, 2026<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Instructions on the procedure for changing the accounting year.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Accounting Law 2015<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">No. 88\/2015\/QH13<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Regulations on opening, recording, and closing accounting books, and the responsibilities of the accounting unit&#039;s representative.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Law on Tax Administration<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Current<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Regulations on procedures for notifying changes to tax registration information.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Law on Corporate Income Tax<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Current<\/span><\/td>\n<td style=\"text-align: center;\"><span style=\"font-weight: 400;\">Regulations on tax periods and procedures for changing corporate income tax periods.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"text-align: justify;\"><b>Case Study: FDI enterprises in Khanh Hoa Province change their accounting period.<\/b><\/h2>\n<h3 style=\"text-align: justify;\"><b>Background<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Company Y, a foreign-invested enterprise operating in the seafood processing and export sector in Khanh Hoa province, with its parent company in Japan, uses an accounting period from April 1st to March 31st of the following year. To facilitate the consolidation of the group&#039;s financial statements, the company has decided to change its accounting period from the calendar year to the April 1st to March 31st period, starting in 2027.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>The handling method follows the instructions in Official Letter 4592\/KHH-QLDN1.<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Based on advice from <\/span><b>MAN \u2013 Master Accountant Network<\/b><span style=\"font-weight: 400;\">, The company will sequentially follow these steps: first, submit a notification of changes to the business registration details to the Department of Planning and Investment, and simultaneously update the tax registration information; second, send a notification to the Khanh Hoa Provincial Tax Department before the new fiscal year takes effect; third, prepare separate financial statements and tax settlement documents for the transition period from January 1, 2027 to March 31, 2027, and submit them before the deadline of June 30, 2026, as instructed.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>The measured results<\/b><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The conversion application was confirmed by the tax authorities within 15 working days, with no additional requirements.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The three-month transition period financial report was successfully consolidated with the parent company&#039;s report in Japan on schedule.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">No discrepancies occurred between the declarations. <\/span><a href=\"https:\/\/thue.man.net.vn\/quyet-toan-thue-tndn\/\"><span style=\"font-weight: 400;\">corporate income tax settlement<\/span><\/a><span style=\"font-weight: 400;\"> and accounting records when the tax authorities conduct a review during a regular tax audit.<\/span><\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\"><b>Expert opinion: Common business risks when changing accounting periods.<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Experts at <\/span>MAN \u2013 Master Accountant Network<span style=\"font-weight: 400;\"> With over 30 years of experience in auditing and tax consulting in Vietnam, we note several common tax risks that businesses need to proactively avoid when making changes to their accounting year.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Risk 1: Delayed or inconsistent notification between the two agencies.<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Many businesses only complete the procedures at the business registration agency and forget to send separate notifications to the directly managing tax authority, or they do not follow the correct timeline before the conversion. As a result, tax returns are suspended or require further explanation during final settlement.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Risk 2: Confusion between the corporate income tax period and the personal income tax settlement period.<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">This is the most common mistake, according to MAN&#039;s observations. Many accountants apply the new accounting period directly to personal income tax settlements, even though the tax settlement period is clearly specified. <\/span><a href=\"https:\/\/thue.man.net.vn\/tong-quan-thue-tncn\/\"><span style=\"font-weight: 400;\">personal income tax<\/span><\/a><span style=\"font-weight: 400;\"> The calendar year remains unchanged. This error results in filing the tax return in the wrong period and may lead to administrative penalties for tax violations.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Risk 3: Neglecting the obligation to close the accounting books on time.<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to Article 26 of the 2015 Accounting Law, accounting units are required to close their books at the end of the accounting period before preparing financial statements. During the transition year, many businesses do not clearly separate the closing dates of the old and new fiscal years, leading to overlapping or inaccurate data.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Risk 4: Lack of documentation proving the legal representative&#039;s responsibility.<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to Article 50 of the 2015 Accounting Law, the legal representative of an accounting unit is directly responsible for the consequences of accounting errors. When changing accounting periods, without clear written assignments and internal accounting audit procedures, businesses may face difficulties in explaining their responsibilities to the tax authorities.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Solutions from <\/span><b>MAN \u2013 Master Accountant Network<\/b><span style=\"font-weight: 400;\"> To address these risks, businesses should develop a detailed accounting period transition roadmap with specific timelines, closely coordinate between internal accounting departments and external tax consultants, and maintain complete records of internal notifications, decisions, and meeting minutes with tax authorities to facilitate future tax audits and inspections. This approach also helps businesses optimize tax costs in Vietnam sustainably, rather than simply reacting to problems as they arise.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Conclude<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Official Letter 4592\/KHH-QLDN1, although only a response to a specific situation, provides a very useful practical reference framework for businesses considering changing their annual accounting period. Understanding the notification procedures, tax settlement deadlines for the transition year, and the differences between the accounting periods is crucial. <\/span><a href=\"https:\/\/thue.man.net.vn\/tong-quan-thue-tndn\/\"><span style=\"font-weight: 400;\">corporate income tax<\/span><\/a><span style=\"font-weight: 400;\"> Knowing how to properly prepare for personal income tax finalization will help businesses avoid unfortunate mistakes when dealing with tax authorities.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Tax services at MAN \u2013 Master Accountant Network<\/b><\/h3>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/thue.man.net.vn\/dich-vu-ke-toan-thue-tron-goi-la-gi\/\"><span style=\"font-weight: 400;\">Tax accounting services<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/thue.man.net.vn\/bang-gia-dich-vu-tu-van-thue\/\"><span style=\"font-weight: 400;\">Tax consulting services<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/thue.man.net.vn\/bang-gia-dich-vu-quyet-toan-thue-moi-nhat\/\"><span style=\"font-weight: 400;\">Tax settlement services<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/thue.man.net.vn\/gia-dich-vu-bao-cao-thue\/\"><span style=\"font-weight: 400;\">Tax reporting services<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/thue.man.net.vn\/phi-dich-vu-hoan-thue-gtgt\/\"><span style=\"font-weight: 400;\">VAT refund service<\/span><\/a><\/li>\n<\/ul>\n<h3 style=\"text-align: justify;\"><b>Service contact information at MAN \u2013 Master Accountant Network<\/b><\/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 &#8211; 0903 428 622<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>E-mail:<\/b> <a href=\"mailto:man@man.net.vn\"><span style=\"font-weight: 400;\">man@man.net.vn<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Google Business Profile:<\/b> <a href=\"https:\/\/share.google\/EmihzHg354pCASC9k\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">View MAN \u2013 Master Accountant Network&#039;s Google Business Profile<\/span><span style=\"font-weight: 400;\">\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\/\" target=\"_blank\" rel=\"noopener\"> <span style=\"font-weight: 400;\">View expert Le Hoang Tuyen&#039;s LinkedIn profile.<\/span><span style=\"font-weight: 400;\">\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><a href=\"https:\/\/man.net.vn\/le-hoang-tuyen\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Le Hoang Tuyen<\/span><\/a><span style=\"font-weight: 400;\"> \u2013 Founder &amp; CEO of MAN \u2013 Master Accountant Network, CPA Vietnam with over 30 years of experience in accounting, auditing, taxation, and corporate financial consulting.<\/span><\/p>\n<h2 style=\"text-align: justify;\"><b>Frequently Asked Questions about Official Letter 4592\/KHH-QLDN1<\/b><\/h2>\n<h3 style=\"text-align: justify;\"><b>Which provinces does Official Document 4592\/KHH-QLDN1 apply to businesses?<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">This document was issued by the Khanh Hoa Provincial Tax Department to address a specific business&#039;s concerns within the province. Businesses in other localities can refer to the guidance provided, but should contact their respective tax authorities directly to confirm the correct application.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Should businesses notify the authorities of changes to the accounting period before or after implementation?<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Prior notification is required before changing the corporate income tax period. Notification after the new period has been implemented may be considered a failure to comply with proper procedures.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Does the personal income tax settlement period change with the new accounting period?<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">No. The personal income tax settlement period is always determined according to the calendar year, regardless of whether the business changes its accounting year.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>What is the deadline for submitting tax returns for the transition year?<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The deadline for submitting corporate income tax returns is the last day of the third month from the end of the tax settlement period of the transition phase.<\/span><\/p>\n<h3 style=\"text-align: justify;\"><b>Who is responsible if errors occur during the accounting period transition?<\/b><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">According to Article 50 of the 2015 Accounting Law, the legal representative of an accounting unit is directly responsible for the consequences of any violations caused by them and is jointly liable for violations within their scope of management.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng v\u0103n 4592\/KHH-QLDN1 do Thu\u1ebf t\u1ec9nh Kh\u00e1nh H\u00f2a ban h\u00e0nh ng\u00e0y 25\/8\/2026 l\u00e0 v\u0103n b\u1ea3n tr\u1ea3 l\u1eddi v\u01b0\u1edbng m\u1eafc c\u1ee7a doanh nghi\u1ec7p v\u1ec1 tr\u00ecnh t\u1ef1, th\u1ee7 t\u1ee5c khi th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i k\u1ef3 k\u1ebf to\u00e1n n\u0103m. \u0110\u00e2y l\u00e0 lo\u1ea1i c\u00f4ng v\u0103n h\u01b0\u1edbng d\u1eabn nghi\u1ec7p v\u1ee5 m\u00e0 r\u1ea5t nhi\u1ec1u k\u1ebf to\u00e1n tr\u01b0\u1edfng, ch\u1ee7 doanh nghi\u1ec7p c\u1ea7n [&hellip;]<\/p>","protected":false},"author":4,"featured_media":7681,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,8],"tags":[],"class_list":["post-7680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-thue","category-huong-dan"],"acf":[],"_links":{"self":[{"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/posts\/7680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/comments?post=7680"}],"version-history":[{"count":1,"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/posts\/7680\/revisions"}],"predecessor-version":[{"id":7685,"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/posts\/7680\/revisions\/7685"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/media\/7681"}],"wp:attachment":[{"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/media?parent=7680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/categories?post=7680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thue.man.net.vn\/en\/wp-json\/wp\/v2\/tags?post=7680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}