The tax code reactivation service Vietnam is a solution that helps businesses quickly restore business operations when the company’s tax code is closed or its validity is terminated on the tax authority’s system.
In reality, many businesses do not operate at their registered address, delay fulfilling tax obligations, or are in the process of dissolution or division, leading to the situation where they have a suspended tax code. So, what to do when a tax code is locked? What documents are included in the procedure to reopen a company tax code and how long does the processing take? With many years of experience in the field of tax and business, Viet An Tax Agent provides a quick company tax code reactivation service, supporting checking the tax code status, completing documents, and working with tax authorities so the business can resume operations soon according to legal regulations. For those wondering reactivate a suspended company tax code services in Vietnam 2026, the tax code reactivation service Vietnam provided by Viet An Tax Agent takes only about 10 days to help businesses quickly resume operations. Follow our article below for more details.
| Step | Content |
| 1 | Check tax code status |
| 2 | Determine the cause of suspension |
| 3 | Fulfill missing tax obligations |
| 4 | Prepare reinstatement documents |
| 5 | Submit documents to the tax authority |
| 6 | Tax authority inspects and verifies |
| 7 | Receive the result of tax code reinstatement Vietnam |
Businesses have their tax code locked or its validity terminated for various reasons. However, not all cases require company dissolution. In many cases, businesses can carry out the procedure to reactivate tax code Vietnam to continue business operations in accordance with the law.
Cases where you can reactivate tax code Vietnam
| Cases of suspended tax code | Possibility of reactivation |
| Business not operating at registered address | Yes |
| Business suspension but unfulfilled tax obligations | Yes, after remediation |
| Enterprise Registration Certificate revoked but a decision to cancel the revocation exists | Yes |
| In the process of dissolution but wanting to resume operations | Yes |
| Division, separation, consolidation, or merger of enterprise | Yes |
| Unfulfilled tax obligations, fines, late payment interest | Yes, after fulfilling obligations |
This is a common reason leading to a suspended tax code Vietnam. The tax authority may issue a notice that the taxpayer is not operating at the registered address when physical inspection shows no business activity, no signboard, no working representative, or failure to perform tax declaration obligations as prescribed. After remedying this situation and completing the required documents, the business can carry out the procedure to reopen the company tax code.
Many businesses mistakenly believe that once they have registered for business suspension, they no longer have obligations to the tax authority. However, if the business still owes taxes, fines, late payment interest, or has not fulfilled declaration obligations arising before the suspension, the tax authority may place the business under risk management or implement tax administration measures as prescribed. In case the tax code is locked or terminated due to unfulfilled tax obligations, the business needs to remedy the shortcomings and carry out the tax code reactivation procedure to continue normal operations or proceed with company dissolution.
Some businesses have their tax code validity terminated due to the revocation of their Enterprise Registration Certificate. In case the competent state authority subsequently issues a document canceling the revocation decision, the business has the right to request the tax authority to restore the enterprise tax code to continue operating.
During the process of carrying out company dissolution procedures, the tax authority may take steps to terminate the validity of the tax code. However, if the business changes its decision and wants to continue operating before completing the dissolution procedure, the business can carry out the procedure to cancel the dissolution and request tax code reactivation.
In some cases, the business has its tax code closed during the process of division, separation, consolidation, or merger. With an appropriate legal basis and approval from the competent authority, the business can carry out the procedure to reopen the tax code according to current regulations.
Businesses that still owe taxes, administrative fines, or late payment interest often face difficulties when carrying out the tax code reactivation procedure. In this case, the business needs to fulfill its financial obligations to the tax authority before being considered for reopening the enterprise tax code.
When a business has its tax code locked or its validity terminated, the business will face many difficulties in its operations and transactions with partners, clients, as well as state agencies. This is not only a tax issue but also directly affects production, business activities, and the reputation of the business.
Therefore, as soon as discovering the business tax code is locked, the business needs to quickly check the tax code status, identify the cause, and carry out the procedure to reactivate the enterprise tax code to limit arising legal and financial risks.
When a business has its tax code locked or its validity terminated, the business needs to clearly identify the cause to choose a suitable handling plan. Depending on the need to continue operating or terminate operations, the business can perform one of the following procedures:
How to remedy when a business has its tax code locked
If the business no longer needs to continue operating, it must carry out the dissolution procedure as prescribed and submit a dossier to request the termination of the tax code validity at the direct managing tax authority. The business must fulfill all tax obligations, fines, and debts to the state budget before the tax authority approves closing the tax code.
If the company’s tax code is closed but there is still a need to continue business operations, the business must carry out the procedure to reactivate the enterprise tax code or reopen the company tax code according to current regulations. The dossier will be submitted to the direct managing tax authority to consider restoring the tax code validity. Understanding reactivate a suspended company tax code services in Vietnam 2026 involves submitting the correct documents and settling outstanding debts.
Usually, the processing time for a tax code reactivation dossier is from about 10 to 20 working days depending on the specific case. Before the tax code is reopened, the business needs to fulfill obligations for tax declaration, tax payment, late payment interest, and fines (if any) as requested by the tax authority.
Viet An Tax Agent provides a comprehensive enterprise tax code reactivation service, supporting businesses in handling cases where the company tax code is closed, tax code validity is terminated, or procedures to reopen the tax code need to be performed to continue business operations.
The time to perform the procedure to reopen the company tax code is usually from 10 to 20 working days, depending on the reason the business had its tax code locked, the status of the dossier, and the verification request of the tax authority. For cases with complete dossiers, where the business has fulfilled tax obligations and meets the conditions as prescribed, the processing time may be faster.
| Case | Time |
| Not operating at registered address | 10–20 days |
| Suspended but unfulfilled tax obligations | 10–20 days |
| Cancellation of business dissolution | 15–25 days |
| Revoked ERC has been canceled | According to dossier |
The cost to reactivate an enterprise tax code is not fixed but depends on each specific case. The service fee is determined based on the cause leading to the locked tax code, the volume of dossiers to be processed, outstanding tax obligations, and the necessary level of support.
Note: In addition to the service cost, the business needs to fulfill outstanding tax amounts, late payment interest, administrative fines for tax violations, and other financial obligations as requested by the tax authority before being considered for tax code reactivation.
When using the enterprise tax code opening service, clients need to prepare some basic information and documents as follows:
| Dossier | Purpose |
| Written request for reactivation | Perform procedure |
| Documents proving address | Verification |
| Missing tax documents | Fulfill obligations |
| Document canceling revocation/canceling dissolution | Depending on case |
When using the enterprise tax code reactivation service at Viet An Tax Agent, clients will be supported with:
Viet An Tax Agent supports the enterprise tax code reactivation service in many different cases such as: the business ceased operations but has not fulfilled tax obligations; the business had its tax code locked due to not operating at the registered address; the company had its tax code validity terminated due to revocation of the Enterprise Registration Certificate but later had a decision canceling the revocation; or the business is carrying out procedures for dissolution, division, separation, consolidation, merger but wants to resume operations.
The cost to reactivate an enterprise tax code depends on each specific case such as the cause of the locked tax code, dossier status, outstanding tax obligations, and scope of work to be performed. After receiving the information, Viet An Tax Agent will check the dossier and provide a detailed quote for the business.
Usually, the time to perform the procedure to reopen a company tax code is from 10 to 20 working days from when the dossier is valid and the business fulfills the obligations requested by the tax authority. Some simple cases may be processed faster.
Yes. During the implementation of the enterprise tax code reactivation service, Viet An Tax Agent supports the business in determining the outstanding tax amount, late payment interest, administrative fines for tax violations, and guides or assists in performing payment procedures as prescribed.
No. When a business has its tax code locked or validity terminated, it cannot use legal electronic invoices to issue to clients. The business can only resume using invoices after completing the tax code reactivation procedure and meeting the conditions under legal regulations.
Possibly. A locked business tax code usually arises due to failure to properly perform tax obligations, late submission of declarations, or not operating at the registered address. Depending on the case, the business may be subject to administrative fines for tax violations, must pay late payment interest, and fulfill outstanding tax obligations before the tax code is reactivated.
Possibly. If the business is missing tax declarations or has not fulfilled declaration obligations during the period before the tax code was locked, the tax authority may request supplementing the missing tax declaration dossiers. The business must fully fulfill declaration and tax payment obligations to be considered for tax code reactivation.
Usually yes. For cases where the business has its tax code locked due to not operating at the registered address, the tax authority may conduct a physical verification at the business headquarters before considering reopening the tax code. The business needs to prepare full signboards, location lease contracts, and related documents to serve the verification.
Businesses can check their tax code status on the electronic information portal of the tax authority or directly contact the managing tax authority to check the operational status, locked tax code status, or terminated tax code validity status.
It depends on each specific case. However, the business must fulfill outstanding tax obligations, fines, and late payment interest (if any) before the tax authority reviews the enterprise tax code reactivation dossier.
When discovering a locked business tax code, the business needs to identify the cause, check the tax code status, and quickly implement remedial measures as requested by the tax authority. In case professional support is needed, the business can use the tax code reopening service to be consulted and have dossiers processed quickly and properly.
Normally, the procedure to reactivate an enterprise tax code does not incur separate state fees for reopening the tax code. However, before the tax authority considers reactivating the tax code, the business must fulfill outstanding financial obligations such as tax amounts, late payment interest, and administrative fines for tax violations (if any). Additionally, the business may incur service costs if using a consulting unit to perform the tax code reactivation procedure.
If a business has its tax code locked, validity terminated, or does not know reactivate a suspended company tax code services in Vietnam 2026, please contact Viet An Tax Agent for free consultation. We support checking tax code status, reviewing dossiers, handling outstanding tax obligations, and performing a comprehensive procedure to reopen the company tax code nationwide.
