Permanent vs Fixed-Term Contracts: Legal Differences, Duration and Rights 2026

Introduction

In France, the choice between a permanent contract (CDI) and a fixed-term contract (CDD) commits both employer and employee to distinct legal frameworks. Whilst the CDI remains the legal standard of reference under Article L1221-2 of the Labour Code, the CDD constitutes a strictly regulated exception. Failing to understand the differences — maximum duration, legal grounds, end-of-contract entitlements, probationary period — exposes both parties to significant legal disputes. This article provides a comprehensive overview of the legal and practical differences between permanent and fixed-term contracts, the applicable limits in 2026, employee rights and HR best practices to secure every hire.

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Definitions and Fundamental Principles

The Permanent Contract (CDI): The Standard Form of Employment

The permanent contract is governed by Article L1221-2 of the Labour Code, which states that "the employment contract is concluded without a fixed term". It does not involve a predetermined end date and may be terminated at any time, provided the legal procedures are followed (resignation, dismissal, mutually agreed termination approved by the DREETS). A CDI may be full-time or part-time (Art. L3123-1 et seq.).

In this context, electronic signature for HR has become a central tool for digitalising the conclusion of permanent contracts whilst ensuring their evidentiary value.

The Fixed-Term Contract (CDD): A Regulated Exception

The CDD is governed by Articles L1241-1 to L1248-11 of the Labour Code. It may only be entered into for the performance of a specific and temporary task, and only in cases exhaustively listed by law:

• Replacement of an absent employee (illness, maternity leave, sabbatical leave, etc.)

• Temporary increase in activity

• Seasonal employment

• Customary-use contracts in certain sectors (hospitality, entertainment, construction, etc.)

• Replacement of the business owner or a non-employee partner

A CDD concluded outside these grounds may be reclassified as a CDI by the industrial tribunal (conseil de prud'hommes), exposing the employer to substantial financial penalties.

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Maximum Duration: What the Law Says in 2026

Duration of the CDD and Renewals

The total duration of a CDD, including renewals, is capped at 18 months in the vast majority of cases (Art. L1242-8-1). Exceptions exist:

• 9 months for certain contracts pending the commencement of service of an employee recruited on a permanent basis, or for urgent safety-related works

• 24 months for contracts performed abroad or as part of an exceptional export order

• No express legal limit for seasonal or customary-use contracts, subject to the duration of the task

Since the El Khomri Act (2016) and its implementing decrees, the social partners may, through an extended sector-level agreement, modify these maximum durations as well as the number of permitted renewals (two maximum in the absence of an agreement). In 2026, several industry sectors (transport, cleaning, digital technology) have effectively negotiated derogatory provisions that should be consulted before any hiring.

The Gap Period Between Two Fixed-Term Contracts

When a CDD comes to an end, a gap period applies before a new CDD or temporary work contract may be concluded for the same position (Art. L1244-3):

• 1/3 of the total contract duration if the contract is greater than or equal to 14 days

• 1/2 of the total duration if the contract is less than 14 days

This gap period may be set aside in the case of replacement of an absent employee, a seasonal CDD or a customary-use contract.

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Probationary Period, Remuneration and Entitlements

The Probationary Period

In a CDI, the probationary period is governed by Article L1221-19. The maximum legal duration (including renewal) is:

• 2 months for labourers and clerical staff

• 3 months for supervisors and technicians

• 4 months for managerial staff

In a CDD, the probationary period is proportional to the duration of the contract: 1 day per week of contract, up to a maximum of 2 weeks for a CDD of 6 months or less, and 1 month for a CDD exceeding 6 months (Art. L1242-10).

The End-of-Contract Indemnity (IFC): The "Precarity Bonus"

This is one of the most significant differences between a CDI and a CDD. Upon the expiry of a CDD that is not renewed as a CDI, the employee receives an end-of-contract indemnity equal to 10% of the total gross remuneration paid (Art. L1243-8). This indemnity is not payable in certain cases: seasonal contracts, apprenticeship contracts, early termination at the employee's initiative, serious misconduct, or refusal of a CDI offered by the employer for the same position.

In a CDI, no end-of-contract indemnity is automatically payable upon termination. However, an employee dismissed without real and serious cause is entitled to a statutory redundancy payment after 8 months of service (Art. L1234-9, calculated on the basis of 1/4 of a month's salary per year for the first 10 years), as well as compensation assessed under the "Macron scale" (Labour Ordinance of 22 September 2017, confirmed by the Court of Cassation in 2021).

Entitlements to Training and Unemployment Benefits

In terms of unemployment insurance, employees on a CDD are eligible for the ARE (Allocation de Retour à l'Emploi — Return to Employment Allowance) provided they have worked at least 6 months in the last 24 months (Unédic reform 2023). The duration of the benefit is calculated according to the degressive rules in force. CDI holders who resign are only eligible for the ARE under restrictive conditions (a retraining project validated by the CEP, or resignation to follow a relocating spouse).

To learn more about the documentary obligations related to employment contracts and their digitalisation, the guide to electronic signature in business details the evidentiary requirements applicable to HR processes.

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Contract Formalities and Employer Obligations

Mandatory Written Form for the CDD

A CDD must be drawn up in writing and provided to the employee within 48 hours of commencement of employment (Art. L1242-12). It must state: the specific reason for use, the definition of the role, the duration or precise end date, the applicable collective agreement, the remuneration, and the probationary period where applicable. The absence of a written contract automatically results in reclassification as a CDI.

For a CDI, a written contract is not legally mandatory (unless collective agreement provisions require otherwise), but a prior declaration of employment (DPAE) with the URSSAF remains compulsory in all cases.

Digitalisation of Employment Contracts

Since the ordinance of 10 February 2016 transposing the European directive on trust services, the electronic signature of an employment contract is fully enforceable in France. The AI contract generator by Certyneo enables the production of CDI and CDD contracts compliant with the Labour Code, directly signable online with an advanced eIDAS-level evidentiary value.

HR teams thereby save considerable time: according to the Markess by exaegis 2024 report, the average signing time for a digitalised employment contract has been reduced from 4.2 days to less than 12 hours. To calculate the return on investment of such an approach within your organisation, the electronic signature ROI calculator provides a personalised estimate in just a few minutes.

Special Clauses: Non-Competition, Remote Work, Mobility

Whether in a CDI or CDD, certain contractual clauses require particular attention:

• Non-competition clause: valid only if it is limited in time, geographic scope and sector of activity, and accompanied by financial compensation (Cass. soc., 10 July 2002). It is uncommon but possible in a CDD.

• Remote work clause: since the National Interprofessional Agreement (ANI) of 26 November 2020, regular remote work must be the subject of a written agreement (addendum or contractual provision).

• Mobility clause: must precisely define the geographic area concerned (Cass. soc., 7 June 2006).

For companies managing large volumes of contracts, consulting the comparison of electronic signature solutions helps identify the platform best suited to their HR workflows.

Applicable Legal Framework: Reference Texts in 2026

The regulations governing CDI and CDD contracts rest on a dense body of legislative and regulatory provisions, the key elements of which are outlined below.

Labour Code — Key Provisions:

• Art. L1221-2: general principle of the CDI as the standard form of employment contract

• Art. L1242-1 to L1242-4: permitted grounds for use of a CDD

• Art. L1242-8-1: maximum duration of the CDD (18 months, with exceptions)

• Art. L1242-12: obligation of written form and deadline for providing the contract to the employee (48 hours)

• Art. L1243-8: end-of-contract indemnity (10% of gross remuneration)

• Art. L1244-3: gap period between two CDDs

• Art. L1234-9: statutory redundancy payment in a CDI

• Art. L3123-1 et seq.: part-time contract

Digitalisation and Electronic Signature:

• eIDAS Regulation No. 910/2014 (EU): establishes three levels of electronic signature (simple, advanced, qualified). For an employment contract, an advanced signature is generally sufficient pursuant to Article 25 of the regulation; a qualified signature is recommended for high-stakes documents (mutually agreed termination, settlement agreement).

• Civil Code, Art. 1366-1367: enshrine the equivalence of electronic signature with handwritten signature, subject to compliance with the conditions of identification of the signatory and integrity of the document.

• Ordinance No. 2016-131 of 10 February 2016: reform of contract law incorporating the rules on electronic signature into common law.

• GDPR No. 2016/679: the collection and processing of signatories' personal data (identity, email address, timestamp) in the context of an electronic signing process must comply with the principles of data minimisation (Art. 5), legal basis (Art. 6 — performance of the contract), and limited retention period. The record of processing activities (Art. 30) must include this processing activity.

• ETSI EN 319 132 Standard: technical specification relating to advanced electronic signature formats (XAdES, PAdES, CAdES), ensuring the interoperability and durability of digital evidence.

Identified Legal Risks:

An irregular CDD (absence of written form, non-compliant grounds, excess duration) is automatically subject to reclassification as a CDI by the industrial tribunal (Art. L1245-1), entitling the employee to a reclassification indemnity of at least one month's salary. Added to this are entitlements to notice, annual leave and potentially compensation for dismissal without real and serious cause.

Regarding electronic signature, a contract signed using a tool that is not eIDAS-compliant may be challenged on the grounds of proof of consent, which undermines the entire contractual relationship. It is therefore essential to use a certified solution.

Use Cases: Permanent Contracts, Fixed-Term Contracts and Electronic Signature in Practice

Scenario 1 — An Industrial SME Managing 150 Seasonal Recruits Per Year

A food processing SME employing approximately 280 permanent staff recruits between 120 and 150 seasonal workers each year between May and September. Historically, CDD contracts were printed, sent by post and sometimes signed several days after the start of the assignment, exposing the company to a risk of reclassification due to the absence of a written contract within 48 hours.

By deploying an advanced eIDAS-compliant electronic signature solution, the HR department reduced the average signing time from 5.4 days to less than 4 hours. The proportion of contracts signed before the first day of work rose from 61% to 98%. Savings in printing, postage and document management costs were estimated at approximately €14,000 per season, representing a positive ROI from the first quarter of use — consistent with the ranges published in the IDC report on digital HR transformation (2024).

Scenario 2 — A Management Consulting Firm with 45 Employees

A management consulting firm serving large corporations regularly engages consultants on mission-based CDDs (customary-use contracts, consulting sector). Contractual compliance is a reputational concern vis-à-vis major clients who audit the HR practices of their service providers.

By centralising the production of CDDs via an intelligent contract generator and their signature on an eIDAS platform, the firm was able to: (1) ensure that each contract contains the precise legal grounds for use, (2) automatically archive signature evidence (certificate, timestamp, audit trail) for 10 years, (3) respond within 48 hours to contractual audit requests from clients. The time spent by HR staff on contract administration decreased by approximately 35% over the financial year.

Scenario 3 — An Outpatient Care Group Across 12 Sites

An outpatient care group comprising approximately twelve centres spread across two departments employs replacement staff on CDDs (nurses, care assistants) to cover unplanned absences. Responsiveness is critical: a vacancy unfilled within 24 hours directly impacts continuity of care.

Thanks to an integration between their HRIS and an electronic signature solution, replacement CDDs can be generated, sent and signed on mobile in less than 30 minutes, including on weekends. This efficiency has enabled a reduction in the use of temporary staffing agencies (whose margins represent on average 20 to 25% of the hourly cost according to France Travail 2024 data) and improved the vacancy coverage rate from 72% to 91% within six months.

Conclusion

Permanent and fixed-term contracts operate under radically different legal rationales: the former guarantees job stability and commits both employer and employee over the long term, whilst the latter constitutes a strictly regulated exception under the Labour Code, subject to precise formal obligations and a precarity indemnity. In 2026, the digitalisation of employment contracts is no longer optional but an operational and legal necessity: it reduces timeframes, secures proof of consent and mitigates the risk of reclassification.

To further secure your HR processes, Certyneo offers an eIDAS-compliant electronic signature solution, integrated with an intelligent contract generator and tailored to both permanent and fixed-term recruitment workflows. Discover our pricing and get started for free on Certyneo.