Affiliate Programme: Legal Framework and Contracts 2026

Affiliate marketing has established itself as a major growth lever for e-commerce businesses, generating on average 15 to 25% of revenue for high-performing websites. However, behind this commercial opportunity lies a dense legal framework that advertisers must master to avoid administrative sanctions, contractual disputes and reputational damage. Between the Consumer Code, GDPR, Law No. 2023-451 of 9 June 2023 governing commercial influence and European DSA/DMA directives, legally structuring your affiliate programme has become essential.

The Legal Foundations of the Affiliate Contract

The affiliate contract falls mainly under common contract law (Articles 1101 et seq. of the Civil Code) and is generally qualified as a service provision contract of a commercial nature. It must mandatorily specify: the identity of the parties, the nature of the products or services being promoted, the remuneration terms (CPA, CPL, CPC), the duration of the attribution cookie, the termination conditions, as well as clauses relating to intellectual property rights on the marketing materials provided.

Since the Court of Cassation ruling of 20 March 2019, reclassification as an employment contract remains a risk when the relationship of subordination is established. Advertisers must therefore ensure that the affiliate's independence in choosing promotional methods is preserved, while strictly regulating prohibited practices (brand bidding, unauthorised cashback, non-compliant email marketing).

Transparency Obligations and 2023 Influence Law

The law of 9 June 2023 has profoundly transformed the affiliate landscape when it involves content creators. All commercial communications must now be clearly identified by the mention "Advertising" or "Commercial Collaboration" in a legible and inseparable manner from the content. Article 5 of this law requires a written contract as soon as remuneration exceeds a threshold set by decree, with mandatory provisions on pain of nullity.

The DSA (Digital Services Act) regulation, applicable since February 2024, also strengthens traceability obligations: affiliate platforms must retain the information of professional affiliates and allow their identification. The advertiser remains jointly and severally liable for the unfair practices of its affiliates within the meaning of Article L.121-1 of the Consumer Code.

GDPR and Affiliate Data Management

Affiliate tracking relies on cookies and identifiers subject to GDPR and the ePrivacy directive. CNIL's 2020 recommendations require the collection of explicit consent before any non-essential attribution cookie is placed. The contract must clearly designate roles: the advertiser is generally the data controller, while the affiliate platform and affiliate may be joint controllers or data processors depending on the technical configuration.

A GDPR compliance clause is essential, detailing purposes, retention periods (maximum 13 months for marketing cookies), security measures and procedures in the event of a data breach.

Essential Contractual Clauses to Secure

A robust affiliate contract must include: a reasonable non-compete clause, a territorial exclusivity clause if relevant, penalties for fraud (false traffic, unauthorised incentivisation), an audit right for performances, and a clause determining the competent jurisdiction. The remuneration clause deserves particular attention: precise definition of the trigger event, validation timeframes (typically 30 to 60 days), billing procedures and treatment of product returns.

Conclusion

Legally structuring your affiliate programme is no longer an option but a strategic necessity. A well-drafted contract protects the advertiser against deviations, clarifies mutual expectations and facilitates sustainable programme growth. Investing in specialised legal support from the outset prevents costly disputes and strengthens the confidence of professional affiliates.