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What is annual leave? Definition and key rules

22/12/2025

For HR managers and employees, understanding annual leave entitlements is crucial for maintaining a fair and compliant workplace. While the concept seems simple, the nuances of calculation often lead to confusion. In this post, terra helps you explore the definition, legal framework, and how to streamline the entire management process.

What is annual leave and why does it matter?

In the modern professional environment, time off is not merely a perk; it is a fundamental right mandated by law to ensure the long-term health of the workforce.

Definition of annual leave

What is annual leave? It is a specific period of paid time off that employees are entitled to after working for a designated period (usually 12 months). Unlike unpaid leave or sick leave, this time is fully compensated by the employer as if the employee were working.

According to Article 113 of the Labor Code 2019, annual leave in Vietnam is a statutory right. Employees have the freedom to use this time for vacations, personal matters, or simply to rest, without the need to provide a justification or medical evidence to their employer.

Importance of annual leave for employees and employers

For the workforce, annual leave is more than just a holiday; it is a critical component of maintaining physical health and mental stability.

  • Rest and Restoration: Continuous work without breaks leads to chronic stress and eventual burnout. Taking annual leave allows the body and mind to disconnect from daily pressures, significantly reducing the risk of work-related mental health issues and ensuring long-term well-being.
  • Work-Life Balance: Employees need dedicated time to attend to personal matters, travel, or simply spend quality time with family without the distraction of emails. 
  • Job Satisfaction and Morale: When employees feel their need for rest is respected and supported by the company, their engagement levels naturally rise. Access to paid time off creates a sense of security and value, keeping morale high even during busy periods.

From a business perspective, enforcing a clear leave annual policy is a strategic investment in human capital rather than a lost cost.

  • Enhanced Productivity and Focus: Well-rested employees return to the office with recharged energy levels and sharper focus. Preventing fatigue through regular leave ensures that the team maintains high performance and creativity throughout the year, minimizing errors caused by exhaustion.
  • Talent Retention and Attraction: A generous and transparent leave policy is a major competitive advantage in the labor market. Top talent often prioritizes work-life balance when choosing an employer, and existing staff are significantly less likely to resign if they can take necessary breaks.
  • Financial and Legal Compliance: Encouraging employees to use their leave reduces the company’s financial liability of paying out large sums for unused days upon termination.
Annual leave in Vietnam is a statutory right
Annual leave in Vietnam is a statutory right

Annual leave in Vietnam: legal framework and entitlements

Operating in Vietnam requires strict adherence to the Labor Code 2019 and Decree 145/2020/ND-CP. The number of leave days is not arbitrary; it is determined by the nature of the job and the working conditions.

Minimum annual leave days

Under normal conditions, an employee who has worked for a full 12 months for a single employer is entitled to 12 working days of paid leave. This is the baseline standard applied to most office jobs, administrative roles, and non-hazardous professions across the country.

Additional leave for hazardous work

The law recognizes the toll that difficult working environments take on health. Employees working in jobs listed as heavy, hazardous, or dangerous (as defined by the Ministry of Labor, Invalids and Social Affairs) are entitled to 14 working days per year.

For those in extremely heavy, hazardous, or dangerous jobs, or those working in regions with especially harsh living conditions, the entitlement rises to 16 working days. This extra time is legally mandated to allow for necessary physical recovery.

Seniority-based leave increases

Employee loyalty is legally rewarded in Vietnam. According to Article 114 of the Labor Code, for every 5 years an employee works for the same employer, their annual leave in Vietnam entitlement increases by 1 day.

For example: An employee in a normal job (12 days) who has worked for 6 years will be entitled to 13 days annually. HR managers must track these milestones carefully to avoid compliance errors, a task easily automated by terra hr software.

An employee who has worked for a full 12 months for a single employer is entitled to 12 working days of paid leave
An employee who has worked for a full 12 months for a single employer is entitled to 12 working days of paid leave

Who is eligible for annual leave

Understanding eligibility ensures that no employee is wrongfully denied their rights, protecting the company from labor disputes.

Employees under labor contracts

Any individual working under a signed labor contract whether it is a definite-term contract (e.g., 1 year) or an indefinite term contract is fully eligible for leave annually. The law does not discriminate based on the rank or position of the staff member.

Part-time and prorated leave

There is a common misconception that part-time workers are not entitled to leave. In reality, if a part-time worker has a labor contract, they are entitled to annual leave. However, the number of days is calculated on a pro-rata basis, proportional to the time they have worked compared to a standard full-time employee.

New employees or incomplete year of service

Employees who have worked for less than 12 months (including new hires or those who resign mid-year) are still entitled to leave. Their entitlement is calculated based on the actual number of months worked. This ensures fairness for those who join or leave the company during the fiscal year.

Any individual working under a signed labor contract is fully eligible for leave annually
Any individual working under a signed labor contract is fully eligible for leave annually

Leave annual calculation: how many days can employees take

Using the correct annual leave calculator logic is critical. Manual errors here can lead to underpayment of unused leave or scheduling conflicts.

Standard annual leave calculation formula

The calculation for employees who have not worked a full year is explicitly defined in Decree 145/2020/ND-CP. The formula used by HR professionals is:

Leave Days= (Total Annual Entitlement / 12)xNumber of Actual Working Months

If the result is a decimal, companies often round up to benefit the employee (e.g., 4.5 days becomes 5 days), although the law strictly requires pro-rata calculation.

Annual leave calculation examples

Let’s assume an employee is entitled to 12 days per year but joins the company on July 1st and works until December 31st (6 months).

  • Calculation: (12 days / 12 months) x 6 months = 6 days.
  • Result: This employee is eligible to take 6 days of paid leave during their first year.

How to calculate leave in special situations?

When employees work less than 12 months

When employees work less than 12 months If an employee quits in March, they are entitled to leave for January, February, and March. You divide their annual entitlement (e.g., 12) by 12, then multiply by 3. If they have already taken 5 days, you must deduct the excess from their final salary (if company policy permits).

When employees work less than a full month

According to regulations, if an employee works only part of a month, that month is considered a working month for leave calculation if they have worked more than 50% of the standard working days. This nuance is often missed in manual spreadsheets but is handled automatically by the terra HR platform.

Using the correct annual leave calculator logic is critical
Using the correct annual leave calculator logic is critical

Carry-over and payment for unused annual leave

This area has seen significant changes in recent legal updates, causing confusion for many businesses regarding their financial obligations.

Conditions for carrying over leave

Article 113, Clause 4 of the Labor Code allows employees to agree with the employer to carry over unused leave. However, this is not indefinite; leave can typically be carried over to the following year only. HR departments must have a clear policy stating whether unused days expire at the end of Q1 or Q2 of the subsequent year.

Payment for unused leave

A key change in the 2019 Labor Code is that employers are no longer required to pay cash for unused leave to employees who are still working. The law encourages taking time off for rest. Payment for unused days is now generally reserved only for termination scenarios, unless the company’s Internal Labor Regulations offer a more generous buy-back policy.

Year-end and contract termination scenarios

If an employee resigns, is retrenched, or loses their job for any reason, the employer must pay for any accrued but unused leave annual days. This payment is calculated based on the employee’s salary preceding the termination date and must be included in the final settlement.

Employers are no longer required to pay cash for unused leave to employees who are still working
Employers are no longer required to pay cash for unused leave to employees who are still working

Annual leave vs sick leave: key differences

It is vital for both HR professionals and employees to clearly distinguish between annual leave vs sick leave. While both involve time away from work, they are governed by completely different legal frameworks, funding sources, and approval processes. Confusing the two is a primary source of payroll errors and compliance risks.

Definition and purpose comparison

Annual leave is a statutory benefit designed for rest, relaxation, and personal business. It is an entitlement earned through service, allowing employees to take a break from work to recharge. The employee has full discretion over how they use this time, whether for a vacation or simply staying at home, provided they give advance notice.

Sick leave, on the other hand, is strictly for medical recovery. It is a contingent benefit that can only be used when an employee is physically or mentally unable to work due to illness or injury. Unlike annual leave, it is not “earned” or “planned”; it is triggered by a medical event and requires proof from a competent medical authority.

Payment and funding differences

The financial burden falls on different parties for each leave type.

  • Annual Leave: Paid 100% by the Employer. The employee receives their full salary as if they were working. This cost is a direct operational expense for the company and must be budgeted for annually.
  • Sick Leave: Paid by the Social Insurance Agency. The employer does not pay a salary these days. Instead, the employee receives an allowance from the Social Insurance fund (typically 75% of the salary on which insurance premiums are based).
FeatureAnnual LeaveSick Leave
PurposeRest, tourism, personal matters.Medical treatment and recovery.
FundingPaid 100% by the Employer.Paid by Social Insurance (BHXH) (75%).
ApprovalNeeds advance manager approval.Usually notified day-of; needs documents.
Carry OverPermitted (subject to policy).Not permitted; resets annually.

Common mistakes and compliance risks

Employers often mishandle these leave types, leading to friction and potential fines. Here are the most common pitfalls and how to resolve them:

  • Deducting annual leave when an employee is sick: Some managers force employees to use annual leave days for illness to avoid paperwork. Resolution: If an employee submits a valid Certificate of leave for Social Insurance, you must record it as sick leave. Preserving their annual leave entitlement is a legal right.
  • Paying full salary during sick leave: Companies sometimes pay full salary out of kindness, failing to claim the BHXH allowance. Resolution: Ensure payroll is set up to stop salary payment for sick days and assist the employee in claiming their 75% allowance from the insurance agency. This saves company costs while ensuring compliance.
  • Lack of documentation: Approving sick leave without collecting medical certificates leads to audit failures. Resolution: Implement a strict policy where sick leave is only valid upon receipt of the red-stamped hospital certificate. Use the terra hr management system to upload and store these digital records for future audits.
Sick leave, on the other hand, is strictly for medical recovery
Sick leave, on the other hand, is strictly for medical recovery

Common annual leave challenges for employers

Managing time-off requests for a growing workforce is rarely straightforward. Without a robust system, HR departments face a perfect storm of administrative burden, financial inaccuracy, and legal vulnerability that can disrupt daily operations.

Manual tracking issues

Relying on Excel spreadsheets creates a formula break risk. It is common for formulas to fail when an employee changes job levels (affecting entitlement) or reaches a 5-year seniority milestone, leading to incorrect leave balances that frustrate staff.

Payroll and compliance risks

Calculating the cash payment for unused leave upon termination requires precision. If you calculate based on the wrong salary average, you risk underpaying the employee, which can lead to formal complaints or penalties from the Department of Labor.

Challenges with scaling companies

As a company grows from 50 to 500 employees, the volume of leave requests explodes. Managing hundreds of email threads for approval becomes impossible, leading to missed requests and operational gaps. This scalability crisis is the primary driver for adopting the terra HR management system.

As a company grows from 50 to 500 employees, the volume of leave requests explodes
As a company grows from 50 to 500 employees, the volume of leave requests explodes

Frequently asked questions about annual leave

Navigating the nuances of labor law regarding time off often raises specific practical questions. Below are detailed answers to the most frequent queries HR managers receive, structured to provide clear guidance and legal context.

Is the company required to pay for unused annual leave days for employees who are still working normally?

Answer: No.

Under the Labor Code 2019, the mandatory obligation to pay cash for unused leave applies primarily when an employee stops working (termination or job loss). For current employees, the company is not legally required to “buy back” unused days. However, some companies choose to do so voluntarily as a bonus perk to reward attendance.

How many years can unused annual leave be carried over to the next year?

Answer: Typically 1 year.

While Article 113 allows for an agreement to carry over leave, it is not indefinite. The standard practice and legal interpretation usually limit carry-over to the following year only (e.g., 2024 leave used in 2025). Accumulating leave for 3-5 years creates a massive financial liability and is generally discouraged unless a specific collective labor agreement exists.

Are employees who have worked less than 12 months entitled to annual leave?

Answer: Yes.

The law protects new employees as well. Their annual leave entitlement is calculated on a pro-rata basis. For example, if an employee works for 3 months, they are generally entitled to 3 days of leave (assuming a standard 12-day policy). They do not have to wait a full year to start taking time off.

Can annual leave days be exchanged for money while the employee is still working?

Answer: Generally, No.

The spirit of the Vietnamese labor law is to ensure employees take time to rest and recover labor power to maintain health. Converting leave to cash for active employees is not a standard statutory right. It depends entirely on internal company policy, and many companies forbid it to force staff to rest.

If the company goes bankrupt or is dissolved, is payment for unused annual leave given priority?

Answer: Yes.

In the event of bankruptcy, debts related to employee rights are strictly prioritized. This includes unpaid wages, severance allowances, and cash payments for any unused annual leave in Vietnam. These obligations must be settled before other debts like taxes or unsecured bank loans.

While Article 113 allows for an agreement to carry over leave, it is not indefinite
While Article 113 allows for an agreement to carry over leave, it is not indefinite

Managing annual leave effectively with terra HR system

Instead of relying on error-prone spreadsheets, modern businesses are switching to the terra HR management system to fully digitize their workforce operations. Designed specifically for Vietnam’s compliance landscape, it streamlines time-off management with precision.

Here is how the system optimizes your annual leave processes:

  • Automated Leave Logic: Eliminate formula errors forever. The terra HR software flexibly configures leave policies, automatically calculating seniority bonuses and tracking carry-over limits to ensure strict policy adherence.
  • Seamless Payroll Integration: Data consistency is key. The terra HR solution syncs approved leave requests directly with timekeeping and payroll modules, ensuring final salary calculations are 100% accurate without manual data entry.
  • Mobile Employee Self-Service (ESS): Enhance employee satisfaction with the terra HR platform. Staff can instantly check leave annual​ balances and submit requests via the mobile app, while managers can approve them on the go, reducing administrative delays.
terra simplifies the entire lifecycle of leave management:
terra simplifies the entire lifecycle of leave management:

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    Conclusion

    Mastering what is annual leave and its regulations is non-negotiable for a compliant business in Vietnam. By leveraging the automated power of terra, you can ensure every calculation is precise, every request is handled efficiently, and your workforce remains rested and productive.

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