Chain Rule for Fixed-Term Contracts in Leiden
The **chain rule for fixed-term contracts** is a key regulation in Dutch employment law that restricts employers in Leiden and the surrounding area from offering successive temporary positions. This protects local employees—such as those in academia or biotech—from prolonged job insecurity. After a maximum of three fixed-term contracts or two years of service, an open-ended contract automatically applies.
What Does the Chain Rule Mean for Leiden Employees?
In Leiden, with its thriving job market centered around Leiden University and local businesses, the chain rule is essential to prevent abuse of flexible employment. This 'successive contracts rule' limits the number of consecutive fixed-term agreements to three within a 24-month period. Exceeding this threshold results in an indefinite employment contract, providing stability for commuters and newcomers in the city.
Contracts that follow seamlessly or with a short break of no more than six months count as a single chain. This applies across Leiden’s diverse sectors, from education to hospitality in the historic city center.
Legal Basis and Amendments
The rule is grounded in **Article 7:668a of the Dutch Civil Code (Book 7)**: *'A fixed-term employment contract that has been entered into at most twice and has a duration of no more than two years shall be deemed an indefinite employment contract if the contract has not ended after two years.'*
Introduced under the **Wet Werk en Zekerheid (WWZ, Employment and Security Act)** in 2015 and tightened by the **Wet Arbeidsmarkt in Balans (WAB, Balanced Labour Market Act)** in 2020, the period was shortened from three to two years, with a six-month break allowed to reset the chain. Seasonal work in the Leiden region may have longer exceptions. Collective Labor Agreements (CAOs), such as those for universities, may deviate in favor of the employee. In case of disputes, the **District Court of Leiden** is the competent authority.
Application in Leiden’s Practice
Example: A researcher at Leiden University starts with a six-month contract, followed by a nine-month extension and a twelve-month contract. After 27 months, the final contract automatically converts to permanent status, which the employer must confirm in writing.
Breaks shorter than six months maintain the chain; longer breaks reset the count. Temporary replacements, such as for illness, do not count toward the chain.
Leiden-Specific Exceptions
The rule includes exceptions:
- Collective Labor Agreements (CAOs): In sectors like education or healthcare in Leiden, a CAO may allow up to four contracts or four years without disadvantage to the employee.
- Small Employers: Local startups with fewer than ten employees have more flexible termination rules, but the chain limit still applies.
- Sectoral Deviations: Seasonal work in Leiden’s hospitality or events industry follows CAO-specific rules.
- Replacement Contracts: Temporary coverage for sick colleagues does not count toward the chain.
Check your CAO via the **Municipality of Leiden** or sector organizations. For more on fixed-term contracts, see our article Fixed-Term Employment Contracts.
Practical Examples from the Region
Example 1: Chain Exceeded in Leiden
A lab technician at a Leiden biotech company signs three contracts: six, six, and nine months in 2023–2024. Totaling 21 months triggers an automatic permanent contract, which the employer must formalize.
Example 2: Breaking the Chain
An employee in a Leiden café has two contracts totaling 18 months in 2023, followed by a seven-month break. In 2024, a new chain begins.
Example 3: CAO in Academia
The CAO for Leiden University staff allows project employees up to four contracts within three years, ideal for temporary research positions.
Rights and Obligations in Leiden
Employee Rights:
- Automatic conversion to permanent status after the limit.
- No probationary period for the third contract.
- Transition payment if terminated after six months.
Employee Obligations:
- Fulfill contract terms and deadlines.
- Seek clarification in writing if uncertain.
Employer Rights:
- Hire temporary staff for projects, such as Leiden events.
- Reset the chain with a longer break.
Employer Obligations:
- Disclose chain status in writing for each contract.
- For advice on your Leiden-specific situation, contact **Juridisch Loket Leiden** for free support.
Veelgestelde vragen
Wat is mijn retourrecht?
Bij online aankopen heb je 14 dagen retourrecht zonder opgaaf van reden, tenzij de wettelijke uitzonderingen gelden.
Hoe lang geldt de wettelijke garantie?
Goederen moeten minimaal 2 jaar meewerken. Defecten die binnen 6 maanden ontstaan worden verondersteld al aanwezig te zijn.
Kan ik rente eisen over schulden?
Ja, je kunt wettelijke rente eisen (momenteel ongeveer 8% per jaar) over het openstaande bedrag.
Wat kan ik doen tegen oneerlijke handelspraktijken?
Je kunt klacht indienen bij de consumentenbond, de overheid of naar de rechter gaan.
Wat is een kredietovereenkomst?
Een kredietovereenkomst regelt hoe je geld leent, wat de rente is, en hoe je dit terugbetaalt.