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

Introduction

In France, the choice between a permanent contract (CDI) and a fixed-term contract (CDD) commits both the employer and the employee to distinct legal terrain. Whilst the CDI remains the standard legal 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 payments, probationary period — exposes both parties to significant litigation risks. This article provides a comprehensive overview of the legal and practical differences between CDI and CDD, the applicable limits in 2026, employee rights, and HR best practices to secure every hire.

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Definitions and Fundamental Principles

The CDI: Standard Contract

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

In this regard, electronic signature for HR is now a key lever for digitalising the conclusion of permanent contracts whilst guaranteeing their evidential value.

The CDD: A Regulated Exception

The CDD is governed by Articles L1241-1 to L1248-11 of the Labour Code. It may only be concluded for the performance of a specific and temporary task, and only in cases exhaustively set out 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 a business owner or a non-employee partner

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

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Maximum Duration: What the Law States in 2026

CDD Duration and Renewals

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

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

• 24 months for contracts performed abroad or in the context 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, social partners may, through an extended branch agreement, adjust these maximum durations as well as the number of permitted renewals (two maximum in the absence of an agreement). In 2026, several sectors (transport, cleaning, digital) have effectively negotiated derogatory provisions which should be consulted before any recruitment.

The Waiting Period Between Two CDDs

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

• 1/3 of the total duration of the contract if it is 14 days or more

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

This waiting period may be waived 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 Termination Payments

The Probationary Period

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

• 2 months for workers and employees

• 3 months for supervisory staff and technicians

• 4 months for managerial staff (cadres)

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 Payment (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 payment equal to 10% of the total gross remuneration paid (Art. L1243-8). This payment is not due in certain cases: seasonal contract, apprenticeship contract, 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 payment is automatically due upon termination. However, an employee dismissed without real and serious cause is entitled to a statutory redundancy payment after 8 months' 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 tribunal compensation calculated according to the "Macron scale" (Labour Ordinance of 22 September 2017, upheld by the Court of Cassation in 2021).

Rights to Training and Unemployment Benefit

With regard to unemployment insurance, employees on a CDD are entitled to ARE (Return to Employment Allowance) provided they have worked for at least 6 months in the last 24 months (Unédic reform 2023). The duration of benefit is calculated according to the degressive rules in force. CDI holders who resign are only entitled to ARE under restrictive conditions (retraining project validated by the CEP, or resignation to follow a spouse).

To explore further the documentary obligations relating to employment contracts and their digitalisation, the guide to electronic signatures in business details the evidential value requirements applicable to HR.

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Contractual Formalities and Employer Obligations

Mandatory Written Form for the CDD

The CDD must be drawn up in writing and provided to the employee within 48 hours of commencement (Art. L1242-12). It must state: the precise grounds for use, the job definition, 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.

In a CDI, a written contract is not legally required (unless otherwise stipulated by collective agreement), but a prior declaration of employment (DPAE) with URSSAF remains compulsory in all cases.

The 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 Certyneo AI contract generator enables the production of CDI and CDD contracts compliant with the Labour Code, directly signable online with an advanced eIDAS evidential level.

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 in your organisation, the electronic signature ROI calculator provides a personalised estimate within minutes.

Special Clauses: Non-Competition, Remote Working, Mobility

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

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

• Remote working clause: since the national inter-professional agreement (ANI) of 26 November 2020, regular remote working must be the subject of a written agreement (addendum or contractual provision).

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

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

Applicable Legal Framework: Key Texts in 2026

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

Labour Code — Key Provisions:

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

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

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

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

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

• Art. L1244-3: waiting 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 in accordance with Article 25 of the Regulation; a qualified signature is recommended for high-stakes acts (mutually agreed termination, settlement agreement).

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

• Ordinance No. 2016-131 of 10 February 2016: reform of contract law, which integrated the rules on electronic signatures into general law.

• GDPR No. 2016/679: the collection and processing of signatories' personal data (identity, e-mail address, timestamp) within an electronic signing process must comply with the principles of data minimisation (Art. 5), lawful basis (Art. 6 — performance of the contract), and limited retention periods. The record of processing activities (Art. 30) must mention this processing.

• ETSI Standard EN 319 132: 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, duration exceeded) is automatically reclassifiable as a CDI by the employment tribunal (Art. L1245-1), entitling the employee to a reclassification payment of at least one month's salary. This is in addition to notice payments, holiday pay, and potentially compensation for dismissal without real and serious cause.

With regard to electronic signatures, a contract signed using a non-eIDAS-compliant tool may be challenged on the basis of proof of consent, which undermines the entire contractual relationship. It is therefore imperative to use a certified solution.

Use Case Scenarios: CDI, CDD and Electronic Signatures 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 for failure to provide 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 working day rose from 61% to 98%. Savings on 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 figures published in the IDC report on HR digital transformation (2024).

Scenario 2 — A Management Consulting Firm with 45 Staff

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

By centralising the production of CDDs via an intelligent contract generator and their signing 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 devoted by HR staff to the administrative management of contracts decreased by approximately 35% over the financial year.

Scenario 3 — An Outpatient Care Group with 12 Sites

An outpatient care group comprising approximately twelve centres spread across two departments employs replacement staff on CDDs (nurses, healthcare assistants) to cover unforeseen absences. Responsiveness is crucial: a position 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 at weekends. This efficiency 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

CDIs and CDDs respond to radically different legal rationales: the former guarantees employment stability and commits both employer and employee over the long term; the latter constitutes a strictly regulated exception under the Labour Code, subject to precise formal obligations and a precarity payment. In 2026, the digitalisation of employment contracts is no longer optional but an operational and legal necessity: it reduces delays, secures proof of consent, and diminishes the risk of reclassification.

To go further in securing your HR processes, Certyneo offers an eIDAS-compliant electronic signature solution, integrated with an intelligent contract generator and tailored to both CDI and CDD recruitment workflows. Discover our pricing and get started for free on Certyneo.