Introduction
Advertising is an essential part of commercial life. Businesses use advertisements to introduce products, promote services, build brand identity, reach target audiences and influence consumer decisions. However, advertising is not a completely free area. In Turkey, commercial advertisements are subject to a detailed legal framework designed to protect consumers, prevent unfair competition and ensure that marketing communications are honest, transparent and verifiable. This legal framework is commonly referred to as Turkish Advertising Law.
Turkish Advertising Law is not limited to television commercials, billboards or newspaper ads. It also covers social media campaigns, influencer marketing, online banners, search engine advertisements, sponsored content, e-commerce listings, mobile app notifications, targeted ads, discount announcements, AI-generated promotional content, environmental claims, consumer reviews and commercial electronic messages. Therefore, any company, brand, advertising agency, e-commerce platform, influencer or foreign investor targeting consumers in Turkey must understand the legal rules governing advertising activities.
The core purpose of advertising law in Turkey is to prevent consumers from being misled. An advertisement may become unlawful not only when it includes a directly false statement, but also when it hides essential information, creates a wrong overall impression, exaggerates the qualities of a product, fails to disclose sponsorship, uses unverifiable claims or exploits consumer vulnerability. For this reason, legal compliance should be considered before a campaign is published, not after a complaint or administrative investigation begins.
As of 2026, advertising compliance in Turkey has become particularly important due to the increasing use of digital marketing, artificial intelligence, influencer collaborations and targeted advertising. The Ministry of Trade announced that amendments published in the Official Gazette on 1 July 2026 introduced new rules in areas such as targeted advertising, AI-generated advertisements, social media influencer promotions and discount advertising. These amendments show that Turkish Advertising Law is actively adapting to digital markets and new consumer protection risks.
Main Legal Framework of Turkish Advertising Law
The main legal source of Turkish Advertising Law is Law No. 6502 on the Protection of Consumers. This law regulates consumer protection issues and includes provisions concerning commercial advertisements, unfair commercial practices, administrative sanctions and the powers of the Advertising Board. The Ministry of Trade lists Law No. 6502 and the Regulation on Commercial Advertising and Unfair Commercial Practices among the primary consumer protection legislation applicable to advertising and related practices.
Another central source is the Regulation on Commercial Advertising and Unfair Commercial Practices. This regulation sets out the basic principles that advertisers, advertising agencies, media service providers, platforms and other commercial actors must follow. It covers issues such as truthfulness, honesty, substantiation, comparative advertising, price advertisements, discount advertisements, financial service advertisements, children-focused advertising, unfair commercial practices and sector-specific restrictions.
In practice, the most important administrative authority is the Advertising Board, known in Turkish as the Reklam Kurulu. The Advertising Board operates under the Ministry of Trade and reviews commercial advertisements and unfair commercial practices. It may impose administrative fines, order the suspension or correction of advertisements and, in certain cases, decide on access blocking measures for unlawful online advertisements.
The legal framework is also supported by several additional laws and regulations. These include the Turkish Commercial Code provisions on unfair competition, Law No. 6563 on the Regulation of Electronic Commerce, the legislation on commercial electronic messages, the Personal Data Protection Law No. 6698, sector-specific rules on healthcare, pharmaceuticals, food supplements, financial services, tobacco, alcohol, gambling and media broadcasting regulations.
Therefore, advertising compliance in Turkey requires a multi-layered legal assessment. A campaign may comply with general consumer law but still violate data protection rules, health advertising restrictions or electronic communication consent requirements. For this reason, brands should not evaluate advertising law only from a marketing perspective; they should also consider consumer protection, unfair competition, personal data, sectoral regulation and administrative enforcement risks.
What Is a Commercial Advertisement Under Turkish Law?
A commercial advertisement is generally understood as any marketing communication made by an advertiser to promote goods, services, brands, trade names or commercial activities. The medium is not decisive. A commercial advertisement may appear on television, radio, outdoor boards, magazines, websites, marketplaces, mobile applications, social media accounts, video platforms, search engines, podcasts or messaging channels.
The decisive factor is whether the communication has a commercial purpose. If a message is designed to promote a product, encourage purchase, strengthen brand image, influence consumer behavior or create demand, it may be considered a commercial advertisement. This means that a social media post, a review video, a comparison table, an influencer story, a sponsored article or a product ranking may fall within Turkish Advertising Law if it has a promotional purpose.
This broad approach is important because modern advertising is often indirect. Consumers may not always see traditional advertising formats. Instead, they may encounter native advertising, product placement, influencer recommendations, user reviews, affiliate marketing links, personalized product suggestions or AI-generated promotional visuals. Turkish Advertising Law focuses on substance rather than form. If the content has a commercial purpose, it must comply with advertising rules.
Core Principles of Turkish Advertising Law
The first and most important principle is truthfulness. Advertisements must not contain false, inaccurate or deceptive information. A product cannot be advertised as having features it does not actually have. A service cannot be presented as guaranteed if the result depends on many uncertain factors. A business cannot claim market leadership, superior quality or scientific approval without reliable evidence.
The second principle is substantiation. Claims used in advertisements must be provable. Expressions such as “the best,” “the fastest,” “number one,” “clinically proven,” “100% effective,” “lowest price,” “eco-friendly,” “most preferred,” “recommended by experts” or “scientifically tested” may create legal risk unless the advertiser has current, objective and verifiable evidence. In Turkish Advertising Law, advertisers should be ready to prove factual claims if challenged by the Advertising Board or a competitor.
The third principle is transparency. Consumers must be able to understand that they are being exposed to advertising. Hidden advertising is prohibited. This is especially important for influencer marketing, sponsored posts, native advertising, advertorials, product placements and affiliate content. If the consumer cannot easily distinguish editorial or personal content from commercial communication, the advertisement may be considered unlawful.
The fourth principle is fairness. Advertisements must not abuse consumers’ lack of experience, lack of knowledge, age, illness, fear, economic hardship or emotional vulnerability. Campaigns targeting children, elderly consumers, patients or financially distressed individuals are examined more strictly because these groups may be more vulnerable to persuasive commercial messages.
The fifth principle is respect for public order, morality and personal rights. Advertisements must not contain discriminatory, degrading, violent, offensive or socially harmful messages. They must also respect privacy, personality rights, intellectual property rights and the reputation of competitors.
Misleading Advertising in Turkey
Misleading advertising is one of the most common violations under Turkish Advertising Law. An advertisement may be misleading if it includes false information, omits essential information, presents information in an unclear way or creates a false impression in the mind of the average consumer.
For example, a company may advertise a product as discounted when the previous price was artificially increased shortly before the campaign. A clinic may suggest guaranteed treatment results without scientific basis. A cosmetic product may be promoted with medical effects even though it is not a medicine. A real estate project may advertise facilities, delivery dates or investment returns that are not realistically supported. A subscription platform may highlight a low price but hide mandatory additional costs or cancellation difficulties.
The legal assessment is not limited to the literal words used in the advertisement. The overall impression is important. Visuals, voiceover, music, layout, font size, disclaimers, colors, timing and context may all affect whether an advertisement is misleading. A small disclaimer may not cure a misleading main message if the average consumer is likely to rely on the dominant impression created by the advertisement.
Businesses should also remember that intention is not always decisive. Even if the advertiser did not intend to deceive consumers, the advertisement may still be unlawful if it objectively misleads or is likely to mislead the target audience. Therefore, marketing teams should conduct legal review before using strong claims, superiority statements, comparisons, discount rates or health-related expressions.
Comparative Advertising in Turkey
Comparative advertising is allowed in Turkey under certain conditions. A business may compare its product or service with a competitor’s product or service, but the comparison must be objective, accurate, verifiable and not misleading. It must compare goods or services meeting the same needs or intended for the same purpose.
A lawful comparison should be based on measurable criteria such as price, technical performance, energy consumption, delivery speed, durability, service coverage or test results. The comparison must not unfairly discredit competitors, imitate their trademarks, exploit their reputation or create confusion among consumers.
For example, a statement such as “our internet package is the fastest in Turkey” requires strong and current evidence. A statement such as “our product performs better than all competitors” is risky unless supported by independent, objective and properly conducted tests. On the other hand, a comparison based on a clearly identified laboratory test, consumer survey or objective market data may be lawful if it is presented accurately and without exaggeration.
Comparative advertising can be a powerful marketing tool, but it is also a high-risk area. Competitors may file complaints before the Advertising Board or bring unfair competition claims before civil courts. Therefore, businesses should carefully document the evidence supporting every comparative statement.
Influencer Marketing and Social Media Advertising
Influencer marketing has become one of the most heavily scrutinized areas of Turkish Advertising Law. Influencers often promote products through Instagram, TikTok, YouTube, X, blogs, podcasts or live broadcasts. Since these promotions may appear as personal recommendations rather than formal advertisements, the law requires transparency.
The Ministry of Trade’s guidance on social media influencers states that influencer advertisements must be clear, understandable and distinguishable, and that hidden advertising on social media is prohibited. Where the influencer receives payment, free goods, discounted services or any other benefit from the advertiser, the commercial nature of the content must be disclosed in a visible and understandable way.
The 2026 amendments further strengthened this approach. According to the Ministry of Trade, where an influencer obtains any benefit such as payment, discounted products, services or event participation, the post must clearly indicate its advertising nature by using expressions such as “advertisement” or “promotion.”
This rule applies not only to feed posts but also to stories, reels, videos, live streams, podcasts, blogs and other digital formats. The disclosure should be visible at first glance. It should not be hidden among many hashtags, placed only at the end of a long caption or written in a way that consumers cannot easily understand.
Brands should also avoid asking influencers to make claims that they cannot legally make themselves. An influencer should not recommend a product they have not experienced in a way that creates the impression of personal use. They should not make unverifiable health claims, scientific claims or superiority claims. In practice, influencer contracts should include clauses on disclosure obligations, content approval, prohibited statements, evidence requirements, takedown obligations and liability.
Digital Advertising and Targeted Advertising
Digital advertising is now one of the main focuses of Turkish Advertising Law. Online advertising can be personalized through browsing behavior, purchase history, device information, location data, cookies, demographic data and user interests. This practice is known as targeted advertising.
Targeted advertising raises two main legal issues. The first issue is consumer transparency. Consumers should know why they are seeing a particular advertisement and how the relevant targeting criteria can be changed. The second issue is personal data protection. If personal data is processed for advertising purposes, the advertiser must also comply with Turkish data protection rules.
The 2026 amendments introduced specific obligations for targeted advertising. According to the Ministry of Trade, advertisers may engage in targeted advertising provided that they offer consumers direct and easily accessible information about the criteria used to show the advertisement and how these criteria can be changed. The amendments also prohibit targeted advertising directed at children through profiling based on personal data.
This means that brands, platforms and agencies must be careful when using behavioral advertising tools. Cookie banners, privacy notices, consent mechanisms and ad preference panels should be reviewed together with advertising law obligations. A campaign may be commercially effective but legally risky if it uses unclear consent mechanisms, hidden tracking technologies or profiling practices involving children.
AI-Generated Advertisements Under Turkish Advertising Law
Artificial intelligence is changing the advertising industry. Brands can now create synthetic voices, digital models, virtual influencers, AI-generated videos, deepfake visuals and automated promotional texts. These technologies create new opportunities but also new legal risks.
The main legal concern is deception. If an AI-generated character looks like a real person, consumers may believe that the person actually exists or personally recommends the product. If a real person’s digital copy is used, consumers may think that the person personally experienced, approved or endorsed the product. Turkish Advertising Law now pays attention to these risks.
The 2026 amendments introduced rules on AI-generated advertisements. According to the Ministry of Trade, if an advertisement uses AI-generated digital characters that cannot be distinguished from real humans, this must be clearly, understandably and distinguishably disclosed. The amendments also prohibit advertisements where the AI-generated digital copy of a real person creates the impression that the person personally experienced or recommended a product or service.
For businesses, this means that AI advertising should be reviewed not only from a creativity perspective but also from a legal perspective. Brands should obtain consent when using real persons’ likeness, voice or identity. They should also disclose AI use where required and avoid creating false endorsement impressions.
Discount Advertising and Price Claims
Discount advertising is another high-risk area. Consumers are strongly influenced by price reductions, limited-time offers and campaign announcements. Therefore, Turkish law requires discount claims to be accurate and transparent.
The 2026 amendments introduced additional rules for discount advertising. The Ministry of Trade announced that conditional sales advertisements providing discounts or other benefits are also subject to the rules on discount advertising. In discount advertisements, the lowest price applied within the last ten days before the discount may be shown as the pre-discount price; for perishable goods such as fruits and vegetables and for services, the previous price is taken as the basis.
This is particularly important for e-commerce companies. Online sellers should keep accurate price history records and avoid artificial price increases before campaigns. Statements such as “50% off,” “best price,” “lowest price of the year,” “limited stock” or “last chance” should be used only when they are true and documentable.
A discount campaign may also be misleading if essential conditions are hidden. If the discount applies only to selected products, limited stock, specific payment methods, membership status or minimum basket amounts, this information should be clearly disclosed. Consumers should not discover the real conditions only at the final checkout stage.
Environmental Claims and Green Advertising
Environmental claims are increasingly popular in advertising. Brands use expressions such as “eco-friendly,” “sustainable,” “green,” “carbon neutral,” “natural,” “recyclable” and “environmentally responsible.” However, these claims may mislead consumers if they are vague, exaggerated or unsupported.
Under Turkish Advertising Law, environmental claims must be specific, accurate and verifiable. A business should not use broad environmental statements unless it can explain what exactly the claim relates to. For example, does the claim concern the packaging, production process, raw materials, transportation, energy use, recyclability or disposal stage? General green claims may be risky if they create a wider environmental impression than the evidence supports.
The 2026 amendments also addressed environmental advertising. The Ministry of Trade stated that general expressions such as “environmentally friendly” should not be used without explanation and that environmental claims should indicate the relevant stage of the product or service life cycle. Certificates and approvals used in such advertisements must be supported by documents issued by competent institutions, universities, accredited organizations or independent testing and evaluation bodies.
Businesses should therefore avoid greenwashing. Environmental advertising should be based on reliable documents, objective standards and clear wording. If the environmental benefit is limited, the advertisement should clearly describe that limitation.
Health Claims, Food Supplements and Sensitive Products
Advertisements involving health, beauty, food supplements, medical devices, wellness services and cosmetic products are especially sensitive. Consumers may rely on these advertisements when making decisions affecting their health or body. For this reason, unsupported health claims are strictly examined.
A product should not be advertised as diagnosing, treating, preventing or curing diseases unless such claims are permitted under applicable legislation. Food supplements should not be presented as substitutes for normal nutrition or medical treatment. Cosmetic products should not be advertised as medicines. Aesthetic services should not be promoted with unrealistic before-and-after claims or guaranteed results.
The 2026 amendments also included rules concerning food supplements. The Ministry of Trade stated that food supplements must not be advertised in a way that creates the impression that they replace foods consumed as part of normal nutrition; comparative advertising for these products may be possible except for matters falling within health claims.
Businesses operating in health-related sectors should obtain legal review before publishing advertisements. They should also ensure that scientific claims are supported by reliable evidence and that sector-specific rules are followed.
Advertising to Children
Children are considered a vulnerable consumer group under advertising law. They may not fully understand commercial persuasion, sponsorship, pricing, digital targeting or in-app purchase mechanisms. Therefore, advertisements directed at children are subject to stricter scrutiny.
Advertising to children should not exploit their inexperience or lack of judgment. It should not encourage harmful behavior, create unrealistic expectations, pressure children to persuade their parents or undermine parental authority. It should also avoid misleading representations about price, product performance, game rewards or educational benefits.
The 2026 amendments specifically prohibit targeted advertising directed at children through profiling based on personal data. This rule is especially relevant for gaming platforms, video streaming services, toy brands, education applications, social media platforms and mobile games.
Consumer Reviews and Testimonials
Consumer reviews strongly influence purchasing decisions. Star ratings, comments, testimonials and complaint platform entries are often treated by consumers as more trustworthy than traditional advertisements. For this reason, fake reviews, manipulated ratings and selective publication of comments may create serious legal risk.
Under Turkish Advertising Law, testimonials should reflect genuine experiences. Businesses should not publish fabricated reviews, hide negative reviews unfairly or present paid endorsements as independent consumer opinions. If a testimonial is sponsored or incentivized, this should be disclosed.
The 2026 amendments also introduced rules on consumer reviews. According to the Ministry of Trade, consumer reviews obtained from platforms where the purchasing process cannot be verified may not be published, and where reviews are categorized under headings such as product, service, delivery, seller or provider, all reviews must be shown in a clear, understandable, distinguishable and easily accessible manner.
This is important for marketplaces, hotels, clinics, restaurants, mobile applications, complaint platforms and review-based service providers. Review systems should be designed transparently and should not mislead consumers about the quality or reliability of a product or service.
Advertising Board Sanctions in Turkey
The Advertising Board actively enforces Turkish Advertising Law. It examines complaints and may also act on its own initiative. Sanctions may include suspension of the advertisement, correction, administrative fines and access blocking measures for unlawful online advertisements.
Recent enforcement practice shows that the Board is active. In its 369th meeting held on 14 May 2026, the Advertising Board reviewed 156 files, found 146 of them unlawful and imposed approximately 23 million Turkish liras in administrative fines; it also decided to block access to 17 advertisements. The Ministry of Trade stated that total fines imposed by the Board in the first five months of 2026 exceeded 122 million Turkish liras.
Administrative fines can be significant. According to the Ministry of Trade, for misleading advertisements and unfair commercial practices, fines in 2026 may range from 99,339 TL to 39,916,524 TL, depending on factors such as the medium of publication, the nature of the violation, the benefit obtained, the harm caused, fault and the economic situation of the violator.
In addition to administrative sanctions, unlawful advertisements may also lead to civil claims, unfair competition lawsuits, consumer complaints, reputational damage and sector-specific regulatory consequences.
Practical Advertising Compliance Checklist in Turkey
Businesses targeting consumers in Turkey should adopt a preventive compliance approach. Before launching a campaign, they should ask the following questions:
Is every factual claim true and provable?
Are price, discount and comparison statements supported by records?
Is the advertisement clearly identifiable as advertising?
Are influencer disclosures visible and understandable?
Are health, environmental or superiority claims supported by reliable evidence?
Does the advertisement comply with sector-specific rules?
Are children exposed to profiling-based targeted advertising?
Are AI-generated characters or digital copies properly disclosed?
Are consumer reviews genuine and fairly presented?
Are commercial electronic messages sent with valid consent where required?
Are personal data, cookies and targeting criteria handled lawfully?
A strong compliance system should involve cooperation between marketing teams, legal counsel, agencies, data protection officers and senior management. The most effective legal review is not a last-minute approval process; it is a part of campaign planning.
Conclusion
Turkish Advertising Law is a dynamic and increasingly important field. It protects consumers against misleading advertisements, hidden sponsorships, unfair commercial practices, unverifiable claims, manipulative digital targeting and deceptive price campaigns. It also regulates modern marketing tools such as influencer promotions, AI-generated advertisements, environmental claims, consumer reviews and targeted online advertising.
For businesses, compliance is not only a legal obligation but also a matter of brand trust. A misleading campaign may generate short-term attention, but it can also result in administrative fines, suspension decisions, access blocking, consumer complaints and reputational harm. In a market where the Advertising Board actively monitors advertisements, brands should treat advertising law compliance as a core part of their commercial strategy.
Companies operating in Turkey or targeting Turkish consumers should closely follow Law No. 6502, the Regulation on Commercial Advertising and Unfair Commercial Practices, Ministry of Trade announcements, Advertising Board decisions, data protection rules and sector-specific restrictions. A transparent, evidence-based and consumer-friendly advertising strategy is the safest way to promote products and services under Turkish Advertising Law.
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