Are you responsible for tax matters in your company, or an individual planning to complete your own tax declaration? Understanding the personal income tax finalization 2025 process, submission deadlines, and key considerations will help minimize errors and optimize processing time.
This article summarizes essential information to help you complete personal income tax finalization 2025 accurately and efficiently.

1. Why is personal income tax finalization 2025 required?
Personal income tax finalization is the process in which an individual consolidates all income earned during the year (from January 1 to December 31), recalculates the exact amount of Personal Income Tax (PIT) payable in accordance with regulations, and compares it with the tax already provisionally paid or withheld to determine whether there is any additional tax payable or a tax refund due.
In cases where additional tax is payable, it must be settled on time. Late payment may result in penalties, with late payment interest charged at 0.03% per day on the outstanding tax amount.
The finalization results may lead to:
- Additional payment if there is a shortfall (late payment penalty: 0.03% per day)
- A tax refund if excess tax has been paid
In addition, completing tax obligations helps individuals avoid legal risks in the future. In many cases such as purchasing property, applying for bank loans, or visa applications, authorities may require proof of completed tax obligations. Without completing tax finalization, individuals may not be able to provide these documents when needed.
2. Who must perform personal income tax finalization 2025?
Not only employees, but also income-paying organizations are responsible for conducting personal income tax finalization 2025 in accordance with Decree 126/2020/ND-CP and Official Letter 883/TCT-DNNCN.
For organizations:
- Enterprises or organizations paying income that are authorized to finalize tax on behalf of individuals
- Applicable regardless of whether tax has been withheld, except in cases where no income is paid
For individuals:
- Resident individuals in Vietnam (those staying 183 days or more in a calendar year or within 12 consecutive months from the first date of arrival in Vietnam) who have additional tax payable or overpaid tax and wish to claim a tax refund or carry it forward to the next tax period are required to conduct personal income tax finalization. (Except where the additional tax payable does not exceed VND 50,000 or the individual does not request a refund or offset.)
- Foreign individuals who terminate their labor contracts in Vietnam before leaving the country are also required to complete personal income tax finalization.
- Resident individuals earning income from salaries and wages who are eligible for tax reduction due to natural disasters, fires, or other force majeure events must also perform tax finalization.
Cases not required to declare PIT:
Individuals are not required to perform personal income tax finalization in the following cases:
- The additional tax payable does not exceed VND 50,000
- There is overpaid tax, but the individual does not request a tax refund or carry it forward to the next period
To better understand how to determine the payable tax in specific scenarios, you may refer to the detailed guide here: How to Calculate Personal Income Tax 2026 in Vietnam
3. Deadline for personal income tax finalization 2025
According to Article 44 of the Law on Tax Administration 2019, deadlines are as follows:
For income-paying organizations:
- No later than the last day of the third month from the end of the calendar year (i.e., March 31, 2025)
- If the deadline falls on a public holiday, it is extended to the next working day (usually April 1)
For individuals self-finalizing PIT:
- No later than April 30 of the following year
- If the deadline coincides with a holiday, it is extended to the next working day
Note: If an individual is eligible for a tax refund, late submission will not be subject to administrative penalties for late filing (Clause 4, Article 28, Circular 111/2013/TT-BTC).

4. Required documents for personal income tax finalization 2025
According to Subsection 1, Section IV of Official Letter No. 13762/CTHN-HKDCN (2023), the required documents for personal income tax (PIT) finalization are categorized by subject as follows:
For individuals conducting self-finalization
- PIT finalization declaration form No. 02/QTT-TNCN
- Dependent deduction appendix No. 02-1/BK-QTT-TNCN (if applicable)
- PIT withholding certificates (tax deduction documents)
- Proof of tax payment (for income earned abroad)
- Supporting documents for deductions (charity, humanitarian contributions, insurance, etc.)
- Dependent registration documents (if not previously registered)
- Bank account details (in case of tax refund request)
- Identification documents (if required by tax authorities for verification)
For companies conducting finalization on behalf of employees
- PIT finalization declaration form No. 05/QTT-TNCN
- Appendices: 05-1/BK-QTT-TNCN, 05-2/BK-QTT-TNCN (if applicable)
- List of authorized individuals for tax finalization (Form No. 08/UQ-QTT-TNCN)
Internal documents for finalization and explanation purposes:
- Payroll and employee income records
- Income payment supporting documents
- Issued PIT withholding certificates
- Other relevant documents as required by tax authorities (if any)

Individuals and businesses can complete personal income tax finalization 2025 via the General Department of Taxation’s e-portal or the eTax Mobile application.
5. Important notes for personal income tax finalization 2025
To ensure accurate personal income tax finalization 2025 and minimize risks, taxpayers should note:
Review all taxable income
Compile all income sources, including salary, bonuses, allowances, and other income. Cross-check with the PIT Law 2025 to determine taxable and exempt income correctly.
>>> Reference: Personal Income Tax 2026: Key Changes Directly Affecting Employees
Register dependents on time
Dependent deductions are only applicable if properly registered. Late registration may result in losing deduction eligibility.
Reconcile withheld tax amounts
Compare the amount of tax already withheld (tax deduction) with the actual payable amount after finalization to avoid underpayment or missing a tax refund.
Overall, understanding personal income tax finalization 2025, preparing complete documentation, and meeting deadlines will help individuals and businesses avoid penalties while optimizing tax benefits. In complex cases, working with a professional advisory firm can help save time and ensure full compliance.
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