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Business tax code is one of the most important pieces of information for a business. Looking up tax codes helps businesses determine information related to tax debt, taxes payable, and tax declaration procedures. This helps businesses maintain legal compliance and avoid legal risks. Customers can look up tax codes through many different methods to ensure smooth business operations. Let’s join Long Phan to learn about popular ways to look up tax codes today in the article below.

The tax code is also the business code, used throughout the operation of the business. Business code is a series of numbers created by the National Business Registration Information System, issued to businesses upon establishment and recorded on the Business Registration Certificate. Each business has a unique code and cannot be reused to issue to another business.
A tax code is issued when an enterprise completes business registration procedures. Enterprise codes are used to carry out tax obligations, administrative procedures and other rights and obligations.
Pursuant to the provisions in: Article 29 of the Law on Enterprises 2020.
The structure of the corporate tax code includes 10 digits used for businesses according to the following structure:
Pursuant to the provisions in: Article 5 of Circular 105/2020/TT-BTC.
Tax codes play a key role in business operations in Vietnam. It is not just a simple series of numbers but also a legal identifier of a business in the national tax management system. Tax codes help tax authorities effectively monitor, manage and verify information about businesses’ tax obligations.
The importance of the tax code is shown in many aspects:
Correct management and use of tax codes helps businesses avoid many legal and financial risks. Businesses need to carefully store tax code information and use it correctly in all transactions related to taxes and finance.

Article 28 of the Law Enterprises 2020 stipulates that the Business Registration Certificate includes the following main contents:
Therefore, the simplest way to look up the tax code is to check the Business Registration Certificate. The tax code is clearly stated on this paper, usually a 10-digit number at the beginning of the certificate. This is a quick and convenient method if the business is keeping the original or a copy of the certificate.
The General Department of Taxation page provides an online tax code lookup tool. To use this tool, businesses need to take the following steps:
Step 1: Access the address: https://tracuunnt.gdt.gov.vn/tcnnt/mstdn.jsp. Select the “Tax code lookup” section.
Step 2: In “Taxpayer information”, enter one of the following information without needing to fill in all the information): Tax code; Name of organization or individual paying tax; Business headquarters address; Identity card number/Representative ID card. Then, click “Look Up” to see the results.
Step 3: Need to know more detailed information about the business, click on the company name in the Lookup Information Table.
Looking up tax codes on the General Department of Taxation page is the most effective and up-to-date method to check business tax code information.
The National Business Registration Portal is a tool to look up business information, including tax codes. To use this tool, businesses take the following steps:
Step 1: Access the National Business Registration Portal at: https://dangkylanhdoanh.gov.vn/
Select the “Look up business information” section.
Enter information such as business name, business code or tax code.
Step 2: In the search section, enter information such as business name or business code.
At that time, the system will suggest company names that are similar or similar to the company name that needs to look up the tax code. Proceed to choose a business name suitable for your search purposes from these suggestions.
This method provides comprehensive information about the business, not just limited to the business tax code.
Depending on each specific case, businesses can conduct tax code lookups according to the above methods. In addition, businesses can use services at Long Phan to receive in-depth support on tax management and optimization of financial obligations. Tax consulting services at Long Phan include:

The corporate tax code is an important tool in the state’s tax management. Taxpayers need to understand clearly the regulations on structure, how to look up, manage and use tax codes effectively. Tax consulting services at Long Phan are a reliable companion in professional tax consulting, supporting businesses with tax-related issues. If you need to use the service, please contact us via Hotline: 0906.735.386 to receive advice.





Note: The content of the articles published on the website of Long Phan Investment Consulting Company is for reference only regarding the application of legal policies. Depending on the time, subject, and amendments, supplements, and replacements of legal policies and legal documents, the consulting content may no longer be appropriate for the situation you are facing or need legal advice on. In case you need specific and in-depth advice according to each case or incident, please contact us through the methods below. With our enthusiasm and dedication, we believe that Long Phan will be a reliable solution provider for our clients.
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