Influencer Law and Advertising Disclosure: What Does Legal Transparency Require in 2026?

Influencer marketing has become one of the most dynamically evolving areas of commercial advertising in recent years. By 2026, the enforcement practice of the Hungarian Competition Authority (GVH) and the application of consumer protection legislation have evolved significantly: influencer content is not a “grey zone” but a fully regulated form of commercial communication. Below, we review the applicable legal framework, GVH expectations, and practical risks.

Legal Background: Influencer Content as Commercial Practice

The Prohibition of Unfair Commercial Practices

The legal assessment of influencer marketing is based on Act XLVII of 2008 on the Prohibition of Unfair Commercial Practices against Consumers (Fttv.), which is the national implementation of the UCP Directive (2005/29/EC). The Fttv. contains the following key rules:

• Fttv. Section 3(d): The concept of “commercial practice” encompasses any activity by an undertaking aimed at influencing the transactional decision of a consumer in connection with the sale of goods or provision of services. An influencer — when publishing content for consideration or in connection with an economic advantage — falls under this definition.
• Fttv. Section 6: Prohibition of misleading commercial practices — including untrue or misleading claims about product characteristics (e.g., an unsubstantiated assertion of “100% natural ingredients”).
• Fttv. Section 7(1)–(3): Prohibition of misleading omissions — this includes concealing the commercial nature of content. If the content serves a commercial purpose but is not made recognisable as such to the consumer, a misleading omission occurs.
• Fttv. Annex I, Point 11: So-called “advertorials” — editorial content embedded with promotion financed by the undertaking without clearly indicating the commercial nature — qualify as an absolutely prohibited (blacklisted) commercial practice.

Rules on Commercial Advertising

Act XLVIII of 2008 on the Basic Conditions and Certain Limitations of Commercial Advertising (Grtv.) imposes additional requirements:

• Grtv. Section 3(1): Advertising must be recognisable as advertising — the consumer must be able to clearly distinguish advertising from other content.
• Grtv. Section 3(2): Hidden advertising is prohibited — advertising that gives the consumer the impression of non-advertising content is not permitted.
• Grtv. Sections 5–9: Special advertising prohibitions and restrictions — including prohibitions on pharmaceutical advertising (Section 5), alcohol advertising (Section 6), and tobacco advertising (Section 7), all of which apply to influencer content.

Practical Requirements for Advertising Disclosure

GVH Case Law and Expectations

Since 2020, the GVH has been continuously developing its recommendations and case law regarding influencer communication. The GVH has not issued a codified “2026 guideline” but has rather shaped requirements through its decisions and recommendations, which by 2026 articulate the following expectations:

1. Placement: The advertising disclosure must be placed at the beginning of the content, immediately visible — a small hashtag at the end of a post is insufficient.
2. Language: The disclosure must be made in Hungarian (#hirdetés or #reklám) — English-only labels such as “#ad” or “#sponsored” do not satisfy domestic requirements on their own, as they may not be recognisable to the average Hungarian consumer.
3. Visibility: The disclosure must be clearly visible and legible — it may not be hidden in small font size, grey-coloured text, or embedded within the body of the text.
4. Video content: For videos, the advertising disclosure must appear both verbally and visually at the beginning of the content, not merely in the video description.

”Gifted” Products

The enforcement practice clearly qualifies the presentation of gifted products as advertising when any economic relationship exists between the influencer and the brand — under Fttv. Section 3(d) and Grtv. Section 3(2), this may constitute a commercial practice or hidden advertising. The “free” nature of the product does not exempt the publisher from the advertising disclosure obligation.

The economic relationship is not limited to monetary consideration: product gifts, travel invitations, exclusive access, discounts, or any other economic advantage establish the advertising disclosure obligation.

The Liability Chain: Who Does the GVH Fine?

The Three-Tier Structure of Advertising Liability

It is important to clarify that the GVH does not apply civil-law joint and several liability within the meaning of Ptk. Section 6:29 in its administrative proceedings. Instead, under Grtv. Section 15 and Fttv. Section 14, the GVH examines and may fine each participant in the value chain independently:

1. Advertiser (the commissioning undertaking): The undertaking in whose interest the advertising is published. The advertiser is responsible for the content of the advertisement — including misleading claims and the absence of advertising disclosure.
2. Advertising service provider (agency): The agency mediating between the influencer and the advertiser is liable if it knew or should have known that the content was unlawful.
3. Publisher of the advertisement (influencer): The influencer as the publisher is independently responsible for fulfilling the advertising disclosure obligation and for ensuring that the content complies with the special prohibitions of the Grtv. (e.g., pharmaceutical or alcohol advertising).

In its 2026 practice, the GVH places particular emphasis on the principle that liability cannot be shifted: the advertiser cannot be exonerated by claiming “the influencer decided how to label the content”, nor can the influencer escape by arguing “the company did not request the disclosure”.

The Amount of the Fine

Fine calculation is based on Section 78 of the Competition Act (Tpvt., Act LVII of 1996), which also applies to proceedings under the Fttv. (Fttv. Section 16):

• The fine may amount to up to 10% of the net turnover of the preceding business year of the relevant undertaking (Tpvt. Section 78(1)).
• Under Tpvt. Section 78(1b), if the undertaking is a member of an undertaking group and the infringement is linked to the group’s activities, the fine base may be the aggregate turnover of the group — but this is not automatic; the GVH decides on a case-by-case basis.
• When imposing the fine, the GVH considers the gravity and duration of the infringement, the degree of fault, the size of the affected consumer group, and the advantage gained through the infringement (Tpvt. Section 78(3)).

Platform Obligations: The Impact of the DSA

The Digital Services Act

The Digital Services Act (DSA, Regulation (EU) 2022/2065) has been fully applicable since February 2024 and has direct effect in Hungary. From the perspective of influencer marketing, the DSA imposes the following obligations:

• Article 26: Online platforms must ensure that advertisements are clearly recognisable as advertising and that the service recipient can identify in real time that they are encountering advertising content.
• Article 26(2): The platform must enable the user to identify on whose behalf the advertisement appears.
• Article 28: Special rules for the protection of minors — platforms must take reasonable measures to ensure that minors are not targeted by profiling-based targeted advertising.

The AVMS Directive and the Hungarian Media Act

The Audiovisual Media Services Directive ((EU) 2018/1808) and its domestic implementation, Act CLXXXV of 2010 on Media Services and Mass Communication (Mttv.), may impose additional requirements on video influencers (YouTube, TikTok, Instagram Reels). Where a video influencer’s activity meets the criteria of a media service (editorial responsibility, regular nature, content addressed to the public), media regulation may also become applicable:

• Mttv. Section 20(1): Recognisability of commercial communications — editorial content must be separated from commercial communications.
• Mttv. Sections 26–28: Rules on product placement applicable to advertising embedded in video content.

Civil Law Consequences

Claims of Misled Consumers

The absence of advertising disclosure or misleading influencer content may result not only in administrative sanctions. The misled consumer may also pursue civil law claims:

• Damages under Ptk. Section 6:519 — where a decision based on misleading content caused pecuniary loss to the consumer (e.g., purchasing a product harmful to health based on a misleading “natural” claim).
• Ptk. Section 6:104: Waiver of consumer rights is void — the absence of advertising disclosure cannot override the consumer’s right to information.
• Ptk. Sections 2:42–2:43: Personality right infringement — where an influencer presents paid advertising as a personal recommendation in a misleading manner, this may violate the principle of good faith and fair dealing.

The Legal Relationship Between Influencer and Brand

In the contractual relationship between the influencer and the advertiser (typically a mandate or service contract), the advertising disclosure obligation also appears as a contractual ancillary obligation. If the influencer omits the advertising disclosure and the GVH consequently fines the advertiser, the advertiser may take action against the influencer based on breach of contract (Ptk. Section 6:137) and damages (Ptk. Section 6:142).

Compliance Matters

No Statutory Compliance Policy Obligation

An important clarification: Hungarian law in 2026 does not impose an express obligation on influencers to adopt a standalone compliance policy. This is an expectation derived from GVH recommendations and industry best practices, not a specific statutory requirement.

What is mandatory at the statutory level:

• The influencer — as the publisher of the advertisement — must ensure the recognisability of advertising under Grtv. Section 3(1);
• Must refrain from misleading commercial practices under Fttv. Sections 6–7;
• Must comply with the special prohibitions under Grtv. Sections 5–9 (pharmaceutical, alcohol, tobacco advertising).

Developing a formalised compliance policy is nevertheless strongly recommended — particularly for influencers who regularly publish sponsored content. An internal policy helps document the advertising disclosure procedures, checkpoints for filtering unlawful content, and information obligations towards brand partners.

Practical Summary

1. Advertising disclosure: at the beginning, in Hungarian, clearly visible: Under the combined application of Grtv. Section 3 and Fttv. Section 7, the advertising disclosure (#hirdetés, #reklám) must appear at the beginning of the content, in Hungarian, and in a visually prominent manner.
2. Any form of economic relationship triggers the disclosure obligation: Monetary compensation, gifted products, invitations, discounts — any economic advantage under Fttv. Section 3(d) establishes the commercial nature.
3. Liability cannot be shifted: Under Grtv. Section 15 and Fttv. Section 14, the GVH may fine the advertiser, the agency, and the influencer each independently — this is administrative chain liability, not civil-law joint and several liability.
4. Fine amount: Under Tpvt. Section 78, up to 10% of the relevant undertaking’s net turnover; for undertaking groups, the aggregate turnover of the group may also serve as the base.
5. Compliance policy is not a statutory obligation but is strongly recommended: Applicable law prescribes specific obligations (Grtv. Section 3, Fttv. Sections 6–7) whose fulfilment is aided by a formalised internal procedure.