Affiliate Programme: Legal Framework and Contracts 2026

Affiliate marketing has established itself as a major growth lever for e-commerce retailers, generating an average of 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 regulating commercial influence and the European DSA/DMA directives, structuring your affiliate programme legally 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 classified as a service provision contract of a commercial nature. It must necessarily specify: the identity of the parties, the nature of the products or services being promoted, remuneration terms (CPA, CPL, CPC), the duration of the attribution cookie, termination conditions, and clauses relating to intellectual property 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 they preserve the affiliate's independence in choosing their promotional methods, while strictly limiting prohibited practices (brand bidding, unauthorised cashback, non-compliant email marketing).

Transparency obligations and 2023 Influence Law

The Law of 9 June 2023 profoundly transformed the affiliate landscape when it involves content creators. All commercial communication must now be clearly identified by the mention "Advertising" or "Commercial collaboration" in a manner that is legible and inseparable from the content. Article 5 of this law requires a written contract where 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 information on professional affiliates and enable their identification. The advertiser remains jointly liable for any unfair practices by its affiliates within the meaning of article L.121-1 of the Consumer Code.

GDPR and affiliate data management

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

A GDPR compliance clause is essential, detailing the purposes, retention periods (13 months maximum for marketing cookies), security measures and procedures in the event of 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 performance, and a choice of law clause. The remuneration clause deserves special attention: precise definition of the triggering event, validation periods (typically 30 to 60 days), billing methods and product return procedures.

Conclusion

Structuring your affiliate programme legally is no longer an option but a strategic necessity. A well-drafted contract protects the advertiser against drift, clarifies mutual expectations and facilitates sustainable programme growth. Investing in specialist legal support from the outset avoids costly disputes and strengthens the trust of professional affiliates.