Expiration of Unused Vacation Time
Here’s what it’s about:
- When Unused Vacation Days Actually Expire
- What Disclosure Requirements Employers Must Meet
- Why Older Vacation Entitlements May Continue to Apply
- What Applies to Transfers, Statutes of Limitations, and Payouts
- How Digital Processes Can Help with Vacation Planning
Unused vacation time generally expires at the end of the year. It can be carried over to the following year only under certain conditions; in such cases, the carried-over vacation must generally be taken by March 31. However, it does not expire automatically: Employers must first inform employees in a specific, transparent, and timely manner about their vacation entitlement and the impending expiration. Without such notice, the entitlement may remain valid.
🚨 Why Unused Vacation Time Is Important for Employers
Unused vacation time is no longer just a matter of vacation planning. For companies, it also raises legal and organizational issues.
Under the Federal Vacation Act, vacation must generally be taken during the current calendar year. Carryover to the next calendar year is permitted only if urgent operational reasons or reasons related to the employee personally justify it. If vacation is validly carried over, it must generally be taken within the first three months of the following year.
👉 However, the key point is this: Employers cannot simply invoke the expiration of vacation time. According to the case law of the European Court of Justice and the Federal Labor Court, they must actively ensure that employees are actually able to take their vacation.
🤔 When do unused vacation days expire?
In practice, companies should distinguish between three scenarios.
Vacation from the current calendar year
Statutory annual leave must generally be taken by December 31. However, for the leave to expire, the employer must generally have fulfilled its obligations to notify and request the employee.
Validly Carried-Over Remaining Vacation Days
If there are urgent business or personal reasons, vacation time may be carried over to the following year. In such cases, March 31 generally marks the end of the statutory carryover period. At the same time, the Federal Labor Court (BAG) clarifies that the employer must also make it clear for this period that carried-over vacation time expires if it is not taken in a timely manner.
Vacation Without Proper Notice from the Employer
If the employer has not fulfilled its obligation to cooperate, vacation days from previous years may remain available. Employees do not lose their entitlement simply because the calendar year or the standard carryover period has expired.
📜 What decision did the European Court of Justice make regarding the forfeiture of vacation time?
In recent years, the European Court of Justice (ECJ) has significantly clarified its case law regarding the forfeiture of vacation time.
The ruling in Case C-120/21 is particularly important for employers. According to the ruling, an employee’s right to vacation may not be forfeited solely on the basis of a national statute of limitations if the employer has not previously actually enabled the employee to take the vacation.
👉 This line of reasoning builds on earlier ECJ case law: Employees generally may not automatically lose their paid annual leave simply because they did not submit a leave request. The decisive factor is whether the employer has previously provided transparent information and urged the employee to take the vacation. The Federal Labor Court has incorporated these principles into its case law.
🤝 What did the Federal Labor Court rule regarding the statute of limitations?
In its ruling of December 20, 2022 (9 AZR 266/20), the Federal Labor Court clarified that statutory vacation entitlements are generally subject to the standard three-year statute of limitations.
However, this period does not automatically begin at the end of the year in which the vacation entitlement accrued.
As a general rule, the statute of limitations begins to run only if the employer:
✅ provided information about specific vacation entitlement
✅ urges timely use
✅ and clearly indicates the impending expiration.
Only once these obligations to cooperate have been fulfilled can the regular statute of limitations period begin to run.
👉 Important for practice: It is therefore incorrect to assume across the board that older vacation entitlements are automatically forfeited after three years. Without proper notification, entitlements from several years may still remain valid.
🔔 How must an employer notify employees that their vacation days will expire?
A general clause in the employment contract or a one-time information sheet is generally not sufficient. According to the case law of the Federal Labor Court (BAG), the information must be specific and transparent. An employer can fulfill this obligation, for example, by providing employees with written notice at the beginning of the calendar year stating:
🔵 exactly how many vacation days you’re entitled to,
🔵 that they should request their vacation early enough so that they can still take it,
🔵 and that, otherwise, the vacation days may expire at the end of the calendar year or at the end of the permitted carryover period.
👉 The FOPH, however, does not require the account to be updated every time there is a change in the vacation balance. Each case is evaluated on its own merits.
📄 Document the note in a verifiable manner
For employers, it is not only important that such a notice be given, but also that this can be verified later.
It therefore makes sense to provide written—or, better yet, electronic—information that can be linked to a specific individual. Companies should be able to track:
✅ when the information was sent or made available,
✅ what vacation entitlement she reported,
✅ what expiration date she mentioned,
✅ and what request to take vacation was included.
A digital time tracking system with integrated Employee Self-Service (ESS) can support this process (learn more). For example, the information can be shared digitally directly from the digital time tracking system—which includes an integrated vacation planner—via email, an employee portal, or an app (learn more here). This way, employers and employees can always check current vacation entitlements, view vacation days already taken and scheduled, and thus maintain a daily, up-to-date overview.
🔍 Current Developments in 2026
To date, the principles governing the duty to provide notice and the duty to cooperate have not been overturned by any recent decision. However, recent Federal Labor Court (BAG) rulings address related issues concerning the right to vacation.
In 2025, the Federal Labor Court (BAG) once again emphasized the special status of statutory minimum vacation. In Case No. 9 AZR 104/24, the court ruled that employees cannot validly waive their statutory minimum vacation entitlement during an existing employment relationship, even through a court-approved settlement.
Even in cases of long-term illness, case law remains nuanced. In 2025, the Federal Labor Court (BAG) once again confirmed the special 15-month period for statutory minimum vacation time in cases of ongoing incapacity to work. Whether the employer is required to provide notice depends, among other things, on whether the employee was even able to take vacation before the start of or during the vacation year.
👉 In terms of day-to-day HR practice, this does not change the fundamental principle: Employers should communicate existing vacation entitlements in a timely, specific, and verifiable manner.
💰 Can unused vacation time be paid out?
During an ongoing employment relationship, statutory vacation time should generally be taken as time off. Therefore, payment in lieu of vacation time is generally not provided for.
Compensation for unused vacation time may be considered, in particular, when the employment relationship ends and any remaining vacation time can no longer be taken. Section 7(4) of the German Vacation Act (BUrlG) expressly provides for a right to such compensation in this case.
👉 Employers should therefore not simply try to “buy out” unused statutory vacation days during the course of the employment relationship.
🌐 Digital vacation planning can help employers
The larger a company becomes, the more difficult it is to manage vacation entitlements, carryovers, and disclosure requirements using individual Excel files or manual lists.
Digital request and approval processes create a centralized database. Employees can view their current remaining vacation days, submit vacation requests digitally, and track the status of their requests. At the same time, HR and managers maintain an overview of outstanding entitlements.
Intelligent systems also have the capability to actively notify employees via text message and/or email about the impending expiration of their vacation entitlements, thereby complying with the Federal Labor Court’s (BAG) legal requirements regarding employee notification.
👉 Digital vacation planning with ZMI – Time or ZMI – People
🤓 Conclusion: Vacation time expiration requires an active employer-led process
Vacation entitlements no longer expire simply because a certain cutoff date has been reached.
Employers must provide employees with specific and timely information about their remaining vacation time, encourage them to take their vacation, and clearly explain that unused vacation time may expire. Employers who cannot demonstrate that they have followed this process must expect that vacation entitlements from previous years will remain valid.
👉 Digital vacation planning, time tracking, and Employee Self-Service (ESS) can help identify outstanding entitlements early on and organize reminder and information processes in a transparent manner.
💡 FAQs on the Expiration of Unused Vacation Days
By when must remaining vacation days be taken?
Vacation must generally be taken during the current calendar year. If it is validly carried over due to urgent business or personal reasons, it must generally be taken within the first three months of the following year. For vacation to expire, the employer must generally have provided prior, proper notice of the impending loss.
What happens if the employer fails to notify the employee of the expiration date?
In general, statutory vacation entitlement does not lapse simply due to the passage of time. Furthermore, the standard three-year statute of limitations generally does not begin until the employer has fulfilled its obligations to cooperate.
Can unused vacation time be paid out?
In principle, it does not serve as a substitute for the actual granting of vacation during the term of the employment relationship. If the employment relationship ends and the employee is therefore no longer able to take accrued vacation, it must be compensated in accordance with § 7(4) of the German Vacation Act (BUrlG).
Does the transfer period apply automatically, or must it be requested?
If the legal requirements for a carryover are met, vacation time is generally automatically carried over to the carryover period in accordance with Federal Labor Court (BAG) case law. A separate request is not a mandatory requirement.
How often must employees be reminded of their remaining vacation days?
The Federal Office of Public Health (BAG) does not prescribe a fixed number of notifications per year. As an example of proper cooperation, it cites providing specific information at the beginning of the calendar year. It is generally not necessary to update this information every time there is a change in vacation entitlement. What is crucial, however, is that the information be specific, clear, and provided in a timely manner.
What happens to unused vacation time in the event of a long-term illness?
In the case of a prolonged inability to work, the carryover period for statutory minimum vacation generally is 15 months. For vacation from the year in which the illness began, another decisive factor may be whether the employer was able to fulfill its obligations to provide notice and issue a request in a timely manner.
Jonathan Martin
Jonathan Martin is a managing partner at ZMI GmbH. For many years, he has been working in the fields of time tracking, HR software, access control, and the digitization of HR processes. In his articles, he provides practical insights into current developments, legal requirements, and digital solutions for businesses.
