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 grounds. While 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 indemnities, probationary period — exposes both parties to significant litigation risks. This article reviews the legal and practical differences between CDI and CDD, the applicable caps in 2026, employee rights and HR best practices to secure every hire.

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Definitions and Fundamental Principles

The CDI: The Standard Employment 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 pre-set 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 central lever for digitalising the conclusion of CDIs while guaranteeing their evidentiary 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 enumerated 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 self-employed partner

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

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Maximum Duration: What the Law Says in 2026

CDD Duration and Renewals

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

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

• 24 months for contracts performed abroad or in connection with 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, modify 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 that should be consulted before any hire.

The Waiting Period Between Two CDDs

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

• 1/3 of the total contract duration if the contract 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 cases of replacement of an absent employee, seasonal CDD, or customary-use contract.

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Probationary Period, Remuneration and Indemnities

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 managers

In a CDD, the probationary period is proportional to the contract duration: 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 expiry of a CDD 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 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 indemnity is automatically due upon termination. However, an employee dismissed without real and serious cause is entitled to a statutory redundancy payment after 8 months of seniority (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 labour tribunal indemnities scaled by the "Macron scale" (Labour Ordinance of 22 September 2017, confirmed by the Court of Cassation in 2021).

Entitlement to Training and Unemployment Benefits

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

For further information on the documentary obligations related to employment contracts and their digitalisation, the guide to electronic signatures in business details the evidentiary value requirements applicable to HR.

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Contract Formalities and Employer Obligations

Mandatory Written Form for the CDD

A CDD must imperatively be established in writing and delivered to the employee within 48 hours of hiring (Art. L1242-12). It must state: the precise reason for use, the job description, the duration or precise end date, the applicable collective agreement, the remuneration, and the probationary period if 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 otherwise provided by collective agreement), but a prior employment declaration (DPAE) with URSSAF remains essential 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 CDIs and CDDs compliant with the Labour Code, directly signable online with advanced eIDAS-level evidentiary value.

HR teams thus save valuable 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 in just a few minutes.

Special Clauses: Non-Competition, Remote Work, Mobility

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

• Non-competition clause: valid only if it is 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 work clause: since the national interprofessional agreement (ANI) of 26 November 2020, regular remote work must be covered by a written agreement (amendment or contractual mention).

• 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 helps identify 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 legislative and regulatory corpus, of which the following are the essential provisions to master.

Labour Code — main provisions:

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

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

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

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

• Art. L1243-8: end-of-contract indemnity (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 light of Article 25 of the regulation; a qualified signature is recommended for high-stakes acts (mutually agreed termination, settlement agreement).

• Civil Code, Art. 1366-1367: enshrine the equivalence of electronic signatures with handwritten signatures, provided the conditions for identifying the signatory and the integrity of the document are met.

• Ordinance No. 2016-131 of 10 February 2016: reform of contract law integrating the rules of electronic signatures 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 signature process must comply with the principles of data minimisation (Art. 5), legal basis (Art. 6 — performance of the contract), and limited retention period. The records of processing activities (Art. 30) must mention this processing.

• ETSI EN 319 132 standard: technical specification relating to advanced electronic signature formats (XAdES, PAdES, CAdES), guaranteeing 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 labour tribunal (Art. L1245-1), entitling the employee to a reclassification indemnity of at least one month's salary. Added to this are notice indemnities, paid leave, and potentially dismissal without real and serious cause indemnities.

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

Use Cases: CDI, CDD and Electronic Signatures in Practice

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

An SME in the agri-food sector employing around 280 permanent staff recruits between 120 and 150 seasonal workers each year from May to 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 absence of written form 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 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 figures published in the IDC report on HR digital transformation (2024).

Scenario 2 — A Management Consulting Firm with 45 Employees

A management consulting firm working with large corporations regularly brings in consultants on mission-based CDDs (customary-use contract, consulting sector). Contractual compliance is an image issue vis-à-vis major clients who audit the HR practices of their service providers.

By centralising CDD production 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 to clients' contractual audit requests within 48 hours. The time spent by HR officers on administrative contract management decreased by approximately 35% over the financial year.

Scenario 3 — An Outpatient Care Group with 12 Sites

An outpatient care group bringing together around twelve centres spread across two departments employs replacement staff on CDDs (nurses, nursing assistants) to cover unplanned 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 fluidity 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 an improvement in the vacancy coverage rate from 72% to 91% within six months.

Conclusion

CDIs and CDDs follow radically different legal logics: the former guarantees employment stability and commits both employer and employee over time, while the latter constitutes a strictly regulated exception under the Labour Code, accompanied by precise formal obligations and a precarity indemnity. In 2026, the digitalisation of employment contracts is no longer an option but an operational and legal necessity: it reduces delays, secures proof of consent and reduces 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 adapted to CDI and CDD recruitment workflows. Discover our pricing and get started for free on Certyneo.