Introduction
Commercial advertising plays a central role in modern business life. Companies use advertisements to promote products, introduce services, build brand recognition and influence purchasing decisions. In Turkey, however, commercial advertising is not an unrestricted marketing activity. It is closely regulated under consumer protection law, advertising law, unfair commercial practices rules and, in certain sectors, additional special legislation. For this reason, the relationship between commercial advertising and consumer protection in Turkey is one of the most important compliance areas for businesses, advertising agencies, e-commerce platforms, influencers and foreign investors targeting Turkish consumers.
The basic legal expectation is simple: advertisements must be honest, accurate, transparent and fair. Consumers should not be misled about the qualities, price, origin, benefits, risks, delivery conditions, health effects or environmental features of goods and services. They should also be able to understand when they are exposed to advertising and when content is sponsored, paid or commercially motivated.
The primary legal basis is Law No. 6502 on the Protection of Consumers and the Regulation on Commercial Advertising and Unfair Commercial Practices. The Ministry of Trade states that, under Article 61 of Law No. 6502, commercial advertisements must comply with the principles determined by the Advertising Board and must be compatible with general morality, public order, personal rights, honesty and truthfulness.
In recent years, the connection between commercial advertising and consumer protection has become even more important because advertising practices have moved rapidly into digital channels. Consumers now encounter advertisements through social media, influencer posts, e-commerce listings, search engine ads, mobile applications, video platforms, targeted advertising systems, AI-generated content, online reviews and personalized product recommendations. This digital transformation has increased the risk of hidden advertising, misleading price claims, fake reviews, manipulative user interfaces and unlawful profiling.
On 1 July 2026, amendments to the Regulation on Commercial Advertising and Unfair Commercial Practices were published in the Official Gazette. According to the Ministry of Trade, these amendments were introduced to strengthen consumer protection against misleading advertisements and unfair commercial practices in an increasingly digital advertising environment. The amendments address areas such as targeted advertising, AI-generated advertisements, influencer promotions, discount advertising, environmental claims and consumer reviews.
This article explains the main principles of commercial advertising and consumer protection in Turkey, the role of the Advertising Board, the legal treatment of misleading advertisements, the rules for digital and social media advertising, consumer rights, sanctions and practical compliance steps for businesses.
Legal Framework of Commercial Advertising in Turkey
The main legal framework governing commercial advertising in Turkey consists of Law No. 6502 on the Protection of Consumers and the Regulation on Commercial Advertising and Unfair Commercial Practices. These rules apply to advertisements directed at consumers through written, visual, audio, electronic or similar means.
The scope of commercial advertising is broad. It includes traditional advertisements such as television commercials, radio spots, newspaper advertisements, brochures and billboards. It also includes digital advertisements such as websites, search engine ads, social media posts, sponsored videos, influencer content, e-commerce banners, marketplace listings, mobile app notifications and online promotional campaigns.
The key regulatory authority is the Advertising Board, known in Turkish as the Reklam Kurulu. The Advertising Board operates under the Ministry of Trade and is responsible for examining commercial advertisements and unfair commercial practices. It may act upon consumer complaints, competitor complaints or ex officio. If an advertisement violates the law, the Board may order suspension, correction, administrative fines and, in certain online cases, access blocking.
Commercial advertising may also be connected to other legal regimes. For example, advertising through e-mail or SMS may involve electronic commerce rules. Targeted advertising may involve personal data protection law. Comparative advertising may raise unfair competition issues under the Turkish Commercial Code. Healthcare, food supplements, financial services, tobacco, alcohol, gambling, pharmaceuticals and medical services are also subject to sector-specific advertising restrictions.
Therefore, advertising compliance in Turkey cannot be assessed only by asking whether an advertisement looks attractive or whether it increases sales. The correct legal question is whether the advertisement is truthful, substantiated, transparent, fair and compliant with consumer protection principles.
Purpose of Consumer Protection in Advertising Law
The purpose of consumer protection in advertising law is to ensure that consumers can make informed economic decisions. Advertising naturally aims to persuade. However, persuasion becomes unlawful when it is based on deception, concealment, manipulation or exploitation of consumer vulnerability.
Consumer protection rules prevent businesses from gaining unfair advantages through misleading claims. They also help maintain fair competition in the market. A company that tells the truth should not be disadvantaged against a competitor that exaggerates product benefits, fabricates discounts or hides essential conditions.
Consumer protection in advertising law also supports market trust. Consumers are more likely to participate in the market when they believe that advertising claims are subject to legal control. If consumers are repeatedly exposed to false discounts, fake reviews, hidden sponsorships or manipulative online interfaces, trust in commercial communication decreases.
This is why Turkish advertising law focuses not only on direct false statements but also on the overall impression created by the advertisement. A campaign may be unlawful even if each sentence is carefully worded, if the advertisement as a whole misleads the average consumer.
General Principles of Lawful Commercial Advertising
The first principle is truthfulness. Commercial advertisements must not contain false or inaccurate statements. A product cannot be promoted as having qualities that it does not possess. A service cannot be advertised as guaranteed when the result depends on uncertain factors. A business cannot claim to be the best, cheapest, fastest or most preferred without evidence.
The second principle is substantiation. Factual claims in advertisements must be provable. Claims such as “clinically proven,” “number one,” “lowest price,” “100% natural,” “environmentally friendly,” “doctor recommended,” “most preferred,” “best-selling” or “scientifically tested” may create legal risk unless supported by objective, current and verifiable evidence.
The third principle is transparency. Consumers must understand when they are seeing advertising. Hidden advertising is prohibited. This principle is particularly important for influencer marketing, native advertising, sponsored articles, affiliate marketing, product placement and consumer review systems.
The fourth principle is fairness. Advertisements must not exploit consumers’ lack of knowledge, inexperience, age, illness, fear, economic hardship or emotional vulnerability. Advertisements directed at children, elderly consumers, patients or financially distressed persons are examined more strictly.
The fifth principle is respect for public order, general morality and personal rights. Commercial advertising must not contain discriminatory, degrading, violent, offensive or socially harmful content. It must also respect privacy, reputation, intellectual property and competitor rights.
Misleading Advertising and Consumer Protection
Misleading advertising is one of the most common violations in Turkish advertising law. An advertisement may be misleading if it includes false information, omits essential information, presents conditions ambiguously or creates a false impression in the mind of the average consumer.
For example, an advertisement may be misleading if a product is promoted as discounted although the previous price was artificially increased before the campaign. It may be misleading if a cosmetic product is presented as having medical treatment effects. It may be misleading if a subscription service advertises a low price but hides automatic renewal, cancellation fees or mandatory additional charges. It may also be misleading if an online platform shows product reviews that are fake, selectively filtered or not based on verified purchases.
The legal assessment focuses on the average consumer’s perception. This means that the advertisement is evaluated as a whole, including its wording, visuals, sound, design, font size, disclaimers, platform, timing and target audience. A small disclaimer may not cure a misleading dominant message. If the main impression is deceptive, the advertisement may be unlawful even if a hidden condition is technically disclosed elsewhere.
Businesses should also be careful with omissions. An advertisement may be misleading not only because of what it says, but also because of what it does not say. If a consumer needs certain information to make an informed decision, that information should be presented clearly and at the right stage.
Unfair Commercial Practices
Commercial advertising and consumer protection in Turkey are closely linked to the prohibition of unfair commercial practices. Unfair commercial practices are acts or omissions that distort or are likely to distort the economic behavior of consumers. These practices may occur through advertisements, sales methods, digital interfaces, pricing practices, subscription systems or post-sale procedures.
Examples may include false scarcity messages, misleading countdown timers, manipulative subscription cancellation flows, hidden costs, pre-selected paid add-ons, fake consumer reviews, misleading comparison tools, deceptive product rankings and aggressive sales tactics.
The Advertising Board has recently emphasized the importance of digital consumer protection. In its 369th meeting held on 14 May 2026, the Board stated that manipulative interface designs negatively affecting consumers’ decision-making are treated as unfair commercial practices. In the same meeting, the Board reviewed 156 files, found 146 unlawful, imposed approximately 23 million Turkish liras in administrative fines and decided on access blocking for 17 advertisements.
This enforcement practice shows that consumer protection in Turkey is not limited to classical false advertising. Digital design, platform architecture and user journey may also be examined if they manipulate consumers.
Role of the Advertising Board
The Advertising Board is the main authority enforcing commercial advertising rules in Turkey. It examines whether advertisements comply with consumer protection law, the Regulation on Commercial Advertising and Unfair Commercial Practices and relevant principles.
The Board may examine advertisements published on television, radio, newspapers, outdoor media, websites, social media platforms, e-commerce marketplaces, mobile applications and other media. It may impose sanctions on advertisers, advertising agencies, media service providers and other responsible actors depending on the nature of the violation.
The decisions of the Advertising Board are important not only because they impose sanctions, but also because they guide market behavior. Businesses, agencies and legal practitioners follow Board decisions to understand how certain claims, campaign structures and digital practices are interpreted.
The Ministry of Trade publishes Advertising Board decisions and press bulletins. The official Advertising Board decisions page includes press bulletins, including the 2026 Board meeting bulletins.
Digital Advertising and Consumer Protection
Digital advertising has created new consumer protection challenges. Unlike traditional advertising, digital advertising can be personalized, interactive, algorithmic and difficult to distinguish from non-commercial content. Consumers may encounter advertisements while scrolling through social media, watching videos, reading blogs, playing games, searching online, checking reviews or browsing e-commerce platforms.
Digital advertisements must comply with the same general principles as traditional advertisements. They must be truthful, clear, transparent and fair. However, digital advertising also creates specific risks such as hidden sponsorship, targeted profiling, fake reviews, manipulated rankings, dark patterns, unclear cookie consent, undisclosed paid placements and AI-generated endorsements.
The 2026 amendments specifically address targeted advertising, AI-generated advertisements, influencer promotions, discount advertising, consumer reviews and environmental claims. The Ministry of Trade stated that the changes were made because consumers are exposed to more advertisements and listings due to digitalization, and the aim is to strengthen protection against misleading advertisements and unfair commercial practices.
For businesses, this means that digital marketing campaigns should be reviewed not only by creative teams but also by legal and compliance teams. The design of the landing page, the clarity of the offer, the price display, the placement of disclosures, the use of personal data and the presentation of reviews may all affect legal compliance.
Social Media Advertising and Influencer Marketing
Social media advertising is one of the most important intersections between commercial advertising and consumer protection in Turkey. Brands often use influencers to promote goods and services because consumers may trust influencers more than traditional advertisements. However, this trust also creates legal risk.
If an influencer receives payment, free products, discounts, services, event access, travel or any other benefit, the commercial nature of the content must be clearly disclosed. Consumers should not be misled into believing that the post is an independent personal opinion when it is actually a sponsored promotion.
The 2026 amendments strengthened the rules on influencer advertising. According to the Ministry of Trade, where a social media influencer receives a benefit such as payment, discounted goods, services or event participation, the post must clearly indicate its advertising nature using expressions such as “advertisement” or “promotion.”
The disclosure should be visible and understandable. It should not be hidden among many hashtags, placed only at the end of a long caption, displayed in tiny font or shown too briefly in a video. Brands should also ensure that influencers do not make claims that the brand itself could not lawfully make.
For example, an influencer should not claim that a cosmetic product cures a skin disease, that a food supplement guarantees weight loss or that a service produces certain results unless these claims are legally permitted and supported by evidence. Disclosure of sponsorship does not make a misleading claim lawful.
Targeted Advertising and Personal Data
Targeted advertising allows businesses to show personalized advertisements based on consumers’ online behavior, interests, purchase history, demographic characteristics, location data or other criteria. This method is commercially powerful, but it raises important consumer protection and personal data concerns.
The 2026 amendments introduced specific rules for targeted advertising. According to the Ministry of Trade, advertisers may conduct targeted advertising if consumers are provided with direct and easily accessible information about the criteria used to show the advertisement and how those criteria can be changed. The amendments also prohibit targeted advertising directed at children through profiling based on personal data.
This rule reflects a broader principle: consumers should not be subject to opaque and uncontrollable advertising systems. If a consumer is shown an advertisement because of age, location, interests, previous searches, shopping behavior or similar criteria, the consumer should be able to understand and manage those criteria.
Targeted advertising may also involve obligations under personal data protection law. Businesses should evaluate whether they have a valid legal basis for processing personal data, whether explicit consent is required, whether privacy notices are sufficient and whether consumers can withdraw consent or change preferences.
E-Commerce Advertising and Price Transparency
E-commerce has become one of the most important areas of consumer protection in Turkey. Online sellers and marketplaces frequently use discount banners, flash sales, limited-time offers, sponsored rankings, product recommendations and review systems to influence consumers.
Price transparency is particularly important. If a product is advertised as discounted, the previous price must be real and provable. Artificially increasing the price before a campaign and then advertising a discount may constitute misleading advertising. The Ministry of Trade has previously stated that guidance on advertisements containing price information and discount sale advertisements was prepared under Law No. 6502 and the Regulation on Commercial Advertising and Unfair Commercial Practices.
The 2026 amendments further addressed discount advertising. According to the Ministry of Trade, conditional sales advertisements providing discounts or other benefits are subject to discount advertising rules. 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 and services, the previous price is taken as basis.
E-commerce platforms should also be careful with hidden costs. Delivery fees, service charges, taxes, installation fees, membership requirements and cancellation conditions should be disclosed clearly before the consumer makes a purchase decision. A low headline price may be misleading if the real payable amount is revealed only at checkout.
Consumer Reviews and Testimonials
Consumer reviews have significant influence on purchasing decisions. Star ratings, comments, testimonials and product evaluations often appear more trustworthy than brand advertisements. For this reason, Turkish consumer protection rules increasingly focus on the authenticity and presentation of reviews.
Fake reviews, manipulated ratings, selectively hidden negative comments or unverified testimonials may mislead consumers. A business should not present paid or incentivized reviews as independent consumer experiences. If reviews are filtered, ranked or categorized, the method should not create a false impression about the product or service.
The 2026 amendments introduced rules on consumer reviews. According to the Ministry of Trade, consumer reviews obtained from platforms where the purchase process cannot be verified may not be published. 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 especially important for e-commerce marketplaces, booking platforms, clinics, restaurants, mobile applications, online education platforms and service comparison websites. Businesses should maintain systems that prevent fake reviews and preserve consumer trust.
Environmental Claims and Consumer Protection
Environmental claims are increasingly used in commercial advertising. Brands frequently use expressions such as “eco-friendly,” “green,” “sustainable,” “carbon neutral,” “natural,” “recyclable” and “environmentally responsible.” These claims can strongly influence consumers, especially those who prefer sustainable products.
However, vague or unsupported environmental claims may mislead consumers and constitute greenwashing. A company should not use broad environmental statements unless it can explain and prove the exact basis of the claim.
The 2026 amendments introduced stricter rules on environmental claims. According to the Ministry of Trade, general expressions such as “environmentally friendly” should not be used without explanation. Environmental claims must specify the relevant stage of the product or service life cycle. Certificates and approvals used in environmental advertisements must also be supported by documents from competent institutions, universities, accredited organizations or independent testing and evaluation bodies.
A legally safer approach is to use specific and evidence-based wording. Instead of saying “our product is environmentally friendly,” a business should explain whether the claim relates to packaging, production, raw materials, energy consumption, transportation, recyclability or disposal.
AI-Generated Advertising
Artificial intelligence has entered the advertising industry rapidly. Brands can now create virtual influencers, synthetic voices, digital characters, AI-generated visuals, automated product descriptions and deepfake-style promotional content. These tools create new consumer protection risks.
The main concern is whether consumers may be misled about the identity, experience or endorsement behind the advertisement. If an AI-generated character looks like a real human, consumers may believe the person actually exists. If a digital copy of a real person is used, consumers may believe that the person personally experienced or recommended the product.
The 2026 amendments introduced rules on AI-generated advertisements. According to the Ministry of Trade, if advertisements use 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 an AI-generated digital copy of a real person creates the impression that the person personally experienced or recommended a product or service.
Businesses using AI in advertising should therefore adopt a transparency-based approach. AI-generated endorsements, virtual characters and synthetic testimonials should be reviewed carefully before publication.
Advertising to Children
Children are considered a vulnerable consumer group. They may not fully understand the difference between entertainment and advertising, especially in digital environments such as games, videos, influencer content and mobile applications. Turkish advertising law therefore requires special care in advertisements directed at children.
Advertisements should not exploit children’s inexperience, encourage unsafe behavior, pressure children to persuade parents or create unrealistic expectations. They should also not use children’s personal data for profiling-based targeted advertising.
The 2026 amendments expressly prohibit targeted advertising directed at children through profiling based on personal data.
This rule is particularly important for toy brands, gaming companies, children’s content platforms, educational applications, food brands and family influencers. Businesses should avoid advertising strategies that manipulate children’s vulnerability or use their data for behavioral targeting.
Sanctions for Unlawful Commercial Advertising
Violations of commercial advertising rules may lead to serious sanctions. The Advertising Board may order the suspension of an advertisement, correction of unlawful content, administrative fines and access blocking in certain cases.
Administrative fines can be substantial. The Ministry of Trade announced that, for 2026, administrative fines for misleading advertisements and unfair commercial practices may range from 99,339 TL to 39,916,524 TL, depending on factors such as the medium of the advertisement, the unfairness of the violation, the benefit obtained, the harm caused, fault and the economic situation of the violator.
Recent enforcement also shows active supervision. In the Advertising Board’s 369th meeting, 156 files were reviewed, 146 were found unlawful, approximately 23 million Turkish liras in administrative fines were imposed and access blocking was decided for 17 advertisements.
Sanctions are not limited to administrative fines. Unlawful advertising may also lead to consumer claims, unfair competition lawsuits, sector-specific regulatory actions, contract disputes with agencies or influencers and reputational damage.
Practical Compliance Checklist for Businesses
Businesses targeting consumers in Turkey should establish an advertising compliance system. Before publishing a commercial advertisement, the following questions should be asked:
Is the advertisement truthful and accurate?
Can all factual claims be proven with reliable evidence?
Is the commercial nature of the content clear?
Are sponsorships, influencer collaborations and paid partnerships disclosed?
Are discount claims supported by price history records?
Are essential conditions visible before the consumer makes a decision?
Are environmental claims specific and documentable?
Are health or scientific claims legally permitted?
Are consumer reviews genuine and verifiable?
Are AI-generated characters or digital copies properly disclosed?
Are children protected from profiling-based targeted advertising?
Does the campaign comply with sector-specific advertising restrictions?
Could the design of the website or application manipulate consumer decisions?
Are possible Advertising Board risks evaluated before publication?
A proper compliance system should involve legal counsel, marketing teams, advertising agencies, data protection officers and senior management. Legal review should be part of campaign planning, not a last-minute formality.
Conclusion
Commercial advertising and consumer protection in Turkey are closely connected. Turkish law allows businesses to advertise their goods and services, but it requires advertisements to be honest, accurate, transparent, fair and substantiated. The law protects consumers against misleading claims, hidden sponsorships, fake discounts, manipulative digital designs, unsupported environmental statements, fake reviews and unlawful targeted advertising.
The Advertising Board actively enforces these rules, and recent amendments show that Turkish regulators are especially focused on digital advertising, influencer marketing, AI-generated advertisements, consumer reviews, environmental claims and children’s protection. As online advertising becomes more complex, consumer protection standards are becoming more detailed and more strictly enforced.
For businesses, compliance with commercial advertising rules is not only a legal obligation but also a strategic advantage. Transparent and lawful advertising strengthens consumer trust, reduces regulatory risk and protects brand reputation. Companies operating in Turkey or targeting Turkish consumers should closely monitor Law No. 6502, the Regulation on Commercial Advertising and Unfair Commercial Practices, Ministry of Trade announcements and Advertising Board decisions.
A successful advertising strategy in Turkey should therefore be built on a simple principle: persuade consumers, but do not mislead them. When advertising is truthful, clear and respectful of consumer rights, it can serve both commercial success and legal compliance.
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