The deadline for filing personal income tax returns for 2026 is determined based on regulations. Tax Administration Law No. 38/2019/QH14 and implementing guidelines on the calendar year tax period. For individuals with income from salaries and wages, accurately understanding these timelines is not only a legal responsibility but also a right to receive a refund of overpaid taxes from the state budget.
Amidst Vietnam's strong digital transformation in the tax sector with the eTax Mobile application and electronic tax system, the tax declaration process has become more convenient. However, the risk of misunderstanding the taxpaying entity or submitting documents late due to holiday confusion remains a persistent problem, leading many to face unnecessary administrative penalties.
Summary of key points regarding the 2026 personal income tax settlement deadline.
- The deadline for filing personal income tax returns for 2026 is This is the final deadline for paying organizations and individuals to submit tax returns and outstanding tax payments for the year 2025 to the government authorities.
- For businesses: No later than March 31, 2026.
- For individuals who self-declare their income: The latest deadline is May 4th, 2026 (due to the April 30th and May 1st holidays).
- Purpose: Complete tax obligations for 2025, process refunds for overpaid taxes or make additional payments for underpaid taxes.
What are the specific deadlines for filing personal income tax returns in 2026?
According to the current Tax Administration Law, the deadline for submitting tax return documents for the 2025 tax year (to be implemented in 2026) is clearly defined between income-paying organizations and individuals who directly declare their income.
For organizations and businesses, the deadline for submitting tax returns is no later than the last day of the third month from the end of the calendar year. Therefore, March 31, 2026 is the deadline for these entities to complete their tax declaration obligations for income paid in 2025.
For individuals directly settling their tax obligations with the tax authorities, the law stipulates that the deadline is the last day of the fourth month from the end of the calendar year. Normally, this would be April 30, 2026. However, since April 30 and May 1, 2026 fall on public holidays as stipulated by the Labor Law, this deadline is automatically extended to the next working day. According to the 2026 lunar calendar, May 4, 2026 is the final date by which individuals must complete the tax return submission.
Accurately defining this deadline helps taxpayers avoid the pressure of last-minute rushes, which often lead to congestion in the electronic tax system.
Why is it necessary to comply with the 2026 personal income tax settlement deadline?
Meeting accounting deadlines is not simply about avoiding penalties. From the perspective of a professional with 30 years of experience, MAN recognizes this as a measure of the professionalism of a company's accounting system and the individual's understanding of the law.
Firstly, for businesses, timely tax settlement helps stabilize financial records and avoids expenses arising from late payment penalties, which are not deductible expenses. corporate income tax. This directly protects the company's profits and reputation with partners and regulatory agencies.
Secondly, for individuals, filing tax returns on time ensures their right to a tax refund. Many workers overpay taxes due to dependents or irregular income throughout the year. If they file early, the refund will be credited to their account faster, providing them with additional financial resources.
Finally, submitting on time minimizes errors. When you're not under time pressure, you can check tax deduction documents and personal allowance invoices more thoroughly, reducing the risk of having to make multiple adjustments to your tax return.
Individuals required to file personal income tax returns for 2026
Not everyone needs to file their own tax return. Identifying the right taxpayer is the first and most important step to avoid wasting time or overlooking obligations.
Organizations and individuals paying income
Businesses and organizations that pay income from salaries and wages in 2025 are responsible for filing tax returns on behalf of authorized individuals. Even if no tax deductions are made during the year, businesses must still submit the tax return. personal income tax settlement as prescribed.
Individuals residing in Vietnam who have income from salaries and wages.
Individuals who are required to directly settle their tax obligations with the tax authorities include:
- Individuals whose additional tax payable after final settlement exceeds 50,000 VND.
- Individuals who have overpaid taxes and wish to claim a refund or offset the amount against the next tax period.
- Individuals residing in Vietnam who receive income from salaries and wages from two or more sources but do not meet the eligibility requirements to authorize their employer to handle their tax settlement.
- Foreign individuals whose employment contracts in Vietnam have ended must settle their accounts before leaving the country.
Cases where tax settlement is not required
The law also clearly specifies exemptions to reduce the procedural burden:
- Individuals whose additional tax payable after final settlement is 50,000 VND or less.
- Individuals whose tax payable is less than the amount of tax already paid but do not require a refund or tax offset.
- Individuals with incidental income who have had tax deductions (10%) applied at source without requiring a tax settlement for this income.
Detailed timelines for the 2026 tax settlement period.
To help our readers manage their schedules more easily, MAN has compiled the most important milestones to note in 2026.
| The subject of execution | Job Description | Deadline |
| Business/Organization | Submit your personal income tax return for the year 2025. | 31/03/2026 |
| Authorized individual | Send the power of attorney and related documents to the business. | Before March 31, 2026 (as per the specific regulations of each unit) |
| Individuals directly settle accounts. | Submit your tax return via eTax Mobile or in person at the tax office. | 04/05/2026 |
| Individuals receiving tax refunds | Submit an application for a refund of overpaid taxes. | No limit (but submissions should be made before May 4th for priority processing) |
Special note for individuals: Although the deadline is May 4th, if you only have an overpayment of tax and submit your refund application after this date, you will not be penalized for late filing. This is a humane aspect of tax management regulations in Vietnam.
The latest legal basis and updated guidelines regarding the deadline for personal income tax finalization in 2026.
To ensure accuracy, the 2026 personal income tax finalization process must be based on the following legal documents:
- Law on Tax Administration No. 38/2019/QH14: The original document stipulates the time limits, procedures, and processes for tax administration in Vietnam.
- Decree 126/2020/ND-CP: This document details certain provisions of the Law on Tax Administration, particularly those concerning the location for submitting tax returns and the categories of entities exempt from tax finalization.
- Circular 80/2021/TT-BTC: This guide provides instructions for implementing the Law on Tax Administration and Decree 126, including sample forms 05/QTT-TNCN for businesses and 02/QTT-TNCN for individuals.
- Decree 91/2022/ND-CP: Amendments and additions to certain provisions of Decree 126, regarding the deadline for submitting documents if it coincides with a public holiday.
Familiarizing yourself with these documents provides accountants and taxpayers with a basis for explaining matters to the tax authorities in case of disputes or audits later on.
Case Study: Processing settlements for foreign experts in Vietnam
During our consultation at MAN, we encountered the case of Mr. David, a British expert working in Vietnam from March 2025 to February 2026.
Situation: Mr. David has two sources of income: one from a company in Vietnam and another from an income source in the UK. In February 2026, his contract ends and he will leave Vietnam.
MAN's analysis: According to regulations, Mr. David is a resident individual (having spent more than 183 days in Vietnam in the calendar year 2025). Before departing in February 2026, he must finalize his personal income tax return for the period he worked in Vietnam.
How to handle:
- Determine income: Global earnings aggregation from March 2025 to February 2026.
- Duration: Since he is leaving the country, his settlement deadline is before his departure from Vietnam, not until May 4, 2026.
- Result: After deducting personal allowances and insurance contributions, Mr. David received a refund of 45 million VND in overpaid taxes. MAN assisted him in completing the procedures within 5 working days before his flight.
The lesson learned is that for specific groups such as foreigners, the settlement deadline may vary depending on the contract's completion date and departure date.
Expert Opinion: Common Risks and Handling Experiences Regarding the 2026 Personal Income Tax Settlement Deadline
With over 30 years of experience, MAN has found that the biggest risk lies not in the computing technology but in data management.
Documentary risks: Many individuals work in multiple places but lose contact with their old company at the end of the year, or their old company has dissolved, resulting in them being unable to obtain their tax deduction certificate. MAN advises that as soon as you finish working at any company, you should immediately request your tax deduction certificate. personal income tax, Don't wait until the tax settlement period to claim your money.
Mistake regarding the application submission location: Individuals are often confused about which tax office to submit their tax return to. The regulations are very clear: If you change your workplace and claim personal deductions at the time of tax settlement, you should submit your tax return to the tax office that manages your current workplace. If you don't work anywhere, you should submit it to your place of residence.
System problem: The e-Tax system is often overloaded around March 31st and May 4th. Our experience at MAN is to complete client files at least 15 days in advance. This allows us time to address technical errors or add information if requested by the tax authorities.
Penalties for late filing of tax returns you need to know
If taxpayers miss the 2026 personal income tax filing deadline, they will face penalties. Decree 125/2020/ND-CP:
- Warning penalty: For late submission of documents ranging from 1 to 5 days, and with mitigating circumstances.
- Fines ranging from 2 to 5 million VND: Late submission ranges from 1 to 30 days.
- Fines ranging from 5 to 8 million VND: Late submissions range from 31 to 60 days.
- Fines ranging from 8 to 15 million VND: Late payment is between 61 and 90 days, or over 90 days but without any tax liability arising.
- Fines ranging from 15 to 25 million VND: Late payment exceeding 90 days and resulting in tax liability.
In addition to administrative penalties, taxpayers must also pay late payment fees calculated according to the following formula: Amount of tax overdue x 0.03% x Number of days overdue.
Conclude
Understanding the 2026 personal income tax filing deadline is key to protecting the financial rights and legal reputation of individuals and businesses. In an era where tax transparency is increasingly tightened by AI technology and centralized management systems, thorough preparation early will help you avoid unnecessary risks.
MAN – Master Accountant Network proudly stands as a leading trusted partner in Vietnam, specializing in providing services such as: tax settlement services, MAN provides professional tax accounting and financial management consulting services. With a team of experienced experts, we are committed to supporting businesses and individuals in optimizing tax obligations and ensuring absolute compliance with current legal regulations. Let MAN help you make your tax filing process smoother and more efficient.
Service contact information at MAN – Master Accountant Network
- Address: No. 19A, Street 43, Tan Thuan Ward, Ho Chi Minh City
- Mobile/Zalo: 0903 963 163 – 0903 428 622
- Email: man@man.net.vn
Content production by: Mr. Le Hoang Tuyen – Founder & CEO MAN – Master Accountant Network, Vietnamese CPA Auditor with over 30 years of experience in Accounting, Auditing and Financial Consulting.
Frequently Asked Questions about the 2026 Personal Income Tax Finalization Deadline
If you have already had your tax deducted at source (10%) and do not require a refund, self-assessment is not mandatory. If you wish to claim a refund, you must self-assess.
No. Your current company only settles the portion of income they paid. You must obtain the documents from your previous company and settle the tax yourself if you are required to do so.
You can use the "forgot password" feature on the app or use your Electronic Identity Card (VNeID) to log in directly.
The submission date is determined by the postmark of the sender. Therefore, you need to ensure the postmark is no later than May 4, 2026.
Household businesses pay taxes using the lump-sum method or declare taxes monthly/quarterly and do not perform annual personal income tax final settlement like individuals with income from salaries and wages. I have two sources of income, but my total income is less than 100 million VND per year. Do I need to file a tax return?
Can my current company process my tax return to replace my previous income?
What should I do if I forget my eTax Mobile password so I can submit my application on time?
What is the deadline for filing personal income tax returns for 2026 if submitting via postal service?
As a sole proprietor, is the tax settlement deadline the same as for salaried employees?
