Misleading Advertising and Commercial Practices Under Turkish Consumer Law

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Introduction

Misleading advertising and unfair commercial practices are among the most important issues under Turkish Consumer Law. In modern commercial life, consumers make purchasing decisions based on advertisements, online product descriptions, social media promotions, influencer recommendations, discount campaigns, price comparisons, search engine ads, marketplace rankings, customer reviews, product labels, and commercial messages. If these communications are false, incomplete, exaggerated, manipulative, or deceptive, consumers may suffer financial loss and businesses may face legal sanctions.

Turkish law does not allow businesses to freely influence consumers through misleading statements or unfair sales techniques. Commercial advertising must be honest, accurate, transparent, and compliant with public order, morality, personal rights, and consumer protection principles. Under Article 61 of Law No. 6502 on the Protection of Consumers, commercial advertisements must comply with the principles determined by the Advertising Board and must be honest and truthful.

The main legal framework includes Law No. 6502 on the Protection of Consumers, the Regulation on Commercial Advertising and Unfair Commercial Practices, Advertising Board decisions and guidelines, and sector-specific rules on price information, discount campaigns, digital advertising, influencer marketing, distance sales, and e-commerce. The Ministry of Trade also lists guides and secondary legislation concerning price advertisements, discount campaigns, social media influencer advertising, and 2026 administrative fines within the consumer protection framework.

For consumers, these rules provide protection against deception and manipulation. For businesses, they create important compliance obligations. A legally weak advertisement may result not only in consumer complaints but also in administrative fines, suspension orders, corrective measures, reputational harm, and civil claims.

What Is Misleading Advertising Under Turkish Consumer Law?

Misleading advertising refers to commercial communication that deceives or is likely to deceive consumers and affects, or may affect, their purchasing decisions. It may involve false information, incomplete disclosure, exaggerated claims, hidden conditions, unclear pricing, deceptive visuals, fake discounts, misleading comparisons, false scarcity claims, or unsubstantiated performance promises.

An advertisement does not need to contain an outright lie to be misleading. A technically accurate statement may still mislead consumers if it omits important information or presents the product in a way that creates a false overall impression. For example, an advertisement may show a product as “50% off” while the reference price was never actually applied. A service may be promoted as “free” while mandatory additional charges are hidden. A product may be advertised as “natural,” “organic,” “guaranteed,” “limited stock,” or “best in Turkey” without sufficient evidence.

Turkish consumer protection rules focus on the average consumer’s perception. The question is not only what the business intended to say, but how the advertisement is likely to be understood by the target audience. If consumers are likely to misunderstand the price, quality, origin, characteristics, benefits, risks, delivery conditions, or legal rights related to the product or service, the advertisement may create legal risk.

What Are Unfair Commercial Practices?

Unfair commercial practices are broader than misleading advertising. They include deceptive, aggressive, manipulative, or otherwise unfair methods used before, during, or after a consumer transaction. A commercial practice may be unfair if it significantly distorts or is likely to distort the economic behavior of consumers.

The Ministry of Trade explains that misleading or aggressive commercial practices are classified as unfair and are prohibited. If unfair commercial practices are carried out through advertising, the rules on commercial advertising apply and supervision is conducted by the Advertising Board.

Examples of unfair commercial practices may include pressuring consumers to make immediate purchases through false urgency, hiding material information, using unclear subscription terms, making cancellation extremely difficult, charging hidden fees, presenting paid promotions as independent reviews, manipulating search results without disclosure, or using fake customer testimonials.

Unfair commercial practice rules are important because not every consumer harm occurs through a formal advertisement. Sometimes the problem appears in the sales process, website design, customer journey, order screen, call center script, renewal procedure, cancellation policy, or post-sale communication. Turkish law therefore evaluates the entire commercial conduct, not only the advertisement itself.

The Role of the Advertising Board in Turkey

The Advertising Board is the main administrative authority that examines commercial advertisements and unfair commercial practices under Turkish consumer protection law. The Board may review complaints, investigate advertisements, evaluate whether commercial practices comply with legal principles, and impose administrative sanctions where necessary.

The Ministry of Trade states that, under Article 61 of Law No. 6502, commercial advertisements must comply with the principles set by the Advertising Board, general morality, public order, personal rights, honesty, and accuracy.

The Board’s role is particularly important in sectors where advertising strongly influences consumer decisions, such as e-commerce, cosmetics, food, supplements, health services, tourism, education, real estate marketing, financial products, automotive sales, electronics, digital subscriptions, and social media promotions.

Advertising Board decisions may include suspension of advertisements, correction requirements, and administrative fines. In July 2024, the Ministry of Trade announced that in the Board’s 345th meeting held on 16 May 2024, 110 out of 119 reviewed files were found contrary to legislation, and suspension penalties together with administrative fines totaling TRY 13,744,459 were imposed for misleading and deceptive advertising and unfair commercial practices.

Legal Requirements for Commercial Advertisements

Commercial advertisements in Turkey must be truthful, honest, and not misleading. They must not exploit consumers’ lack of experience or knowledge. They must not abuse fear, superstition, illness, urgency, vulnerability, or economic pressure. They must not create false expectations regarding quality, price, performance, origin, approval, safety, warranty, legal rights, or availability.

A lawful advertisement should clearly communicate essential information. If a campaign has conditions, limitations, stock restrictions, time limits, geographical restrictions, delivery costs, subscription consequences, or additional fees, these must be disclosed in a way consumers can actually notice and understand.

For example, a company may advertise a product as discounted, but the discount must be based on a legitimate reference price and must not create a false impression. A platform may advertise “free delivery,” but if this applies only above a certain basket amount or only in certain cities, the limitation must be clear. A service provider may advertise “cancel anytime,” but the contract and actual cancellation process must match that promise.

The key principle is consistency. The product page, advertisement, contract, checkout screen, invoice, customer service explanation, and refund policy should not contradict each other.

Misleading Price Information and Discount Campaigns

Price advertisements are one of the most sensitive areas in Turkish consumer protection. Consumers often make quick decisions based on discounts, campaign prices, installment offers, “limited time” promotions, and comparison prices. If price information is unclear or deceptive, consumer decision-making is directly affected.

The Ministry of Trade has updated guidance on price information advertisements, discount sales advertisements, and related commercial practices. The guide is based on Law No. 6502 and the Regulation on Commercial Advertising and Unfair Commercial Practices, and it aims to guide advertisers, advertising agencies, media organizations, and all persons or institutions involved in commercial advertising and practices.

Misleading discount practices may include showing fake previous prices, advertising permanent prices as temporary discounts, using inflated reference prices, hiding mandatory additional costs, applying discounts only at checkout without clarity, or using vague expressions such as “up to 70% off” without explaining which products are actually included.

Businesses should be able to prove the accuracy of price claims. If a product is advertised as discounted, the business should maintain records showing the prior price, campaign period, stock, product scope, and conditions. This evidence may become crucial if the Advertising Board or a consumer challenges the campaign.

False Scarcity and Urgency Claims

False scarcity and urgency claims are common in digital commerce. Examples include statements such as “only 2 items left,” “last chance,” “offer ends in 10 minutes,” “100 people are viewing this product,” or “almost sold out.” These claims can be legitimate if accurate, but they become problematic when used to pressure consumers through false information.

Such tactics may distort consumer behavior by creating artificial urgency. A consumer who believes that a product is almost unavailable may buy quickly without comparing prices, reading terms, or considering alternatives. If the scarcity claim is fabricated or exaggerated, it may be considered misleading or unfair.

Businesses using urgency tools should ensure that real-time stock claims, countdown timers, limited campaign notices, and popularity indicators are accurate and verifiable. Automatically resetting countdown timers or displaying false stock numbers may create serious legal risk.

Misleading Product Descriptions

A product description may be misleading if it exaggerates qualities, hides limitations, or suggests characteristics that the product does not actually have. This is especially common in online sales, where consumers rely heavily on written descriptions and images.

Examples include:

• Advertising a product as “original” when it is not genuine
• Presenting refurbished goods as new
• Stating that a product is “organic” without proper basis
• Using “medical,” “therapeutic,” or “clinically proven” claims without evidence
• Showing accessories in photos that are not included in the package
• Describing technical specifications incorrectly
• Hiding subscription or recurring payment obligations
• Presenting a service as comprehensive while excluding essential components

In e-commerce, the product page itself is a commercial communication. If the product page misleads the consumer, the seller may face consumer claims and administrative scrutiny. Product descriptions should be accurate, complete, and consistent with the invoice, warranty terms, user manual, and delivered product.

Misleading Health, Beauty, and Wellness Claims

Health, beauty, wellness, and cosmetic advertisements carry heightened risk because consumers may rely on them for personal well-being, appearance, or medical concerns. Claims such as “guaranteed weight loss,” “permanent cure,” “doctor approved,” “clinically proven,” “anti-aging miracle,” “natural treatment,” or “no side effects” can be legally risky if not properly substantiated.

Businesses must be particularly careful not to exploit consumers’ health concerns, insecurities, or vulnerability. If a product is cosmetic, it should not be advertised as if it has medical therapeutic effects unless legally permitted and scientifically supported. If a service is aesthetic or wellness-related, the advertisement should not promise guaranteed results unless the business can prove them.

Misleading health-related advertising may also intersect with other legal fields, including medical advertising restrictions, professional ethics, product safety rules, and unfair commercial practice principles.

Influencer Marketing and Social Media Advertising

Influencer marketing is now one of the most important advertising channels in Turkey. Consumers frequently rely on social media personalities for product recommendations, lifestyle suggestions, fashion, cosmetics, health products, travel services, food, digital subscriptions, and online shopping links.

The Ministry of Trade announced that the Guideline on Commercial Advertising and Unfair Commercial Practices by Social Media Influencers was adopted as Advertising Board principle decision No. 2021/2 at the Board’s meeting dated 4 May 2021. The guideline was prepared based on Law No. 6502 and is used in examinations concerning influencer advertising and unfair commercial practices.

The guideline covers commercial advertisements and commercial practices directed at consumers by social media influencers. Its core logic is transparency: consumers should be able to understand when content is commercial. Paid partnerships, free products, sponsorships, affiliate links, promotional codes, brand collaborations, or other material benefits should not be hidden.

A social media post that looks like an independent personal opinion but is actually sponsored may mislead consumers. Therefore, businesses and influencers should clearly disclose advertising relationships. Hashtags, labels, captions, and platform tools should be used in a way that is visible, understandable, and not hidden among unrelated text.

Native Advertising and Hidden Sponsorship

Native advertising is promotional content designed to look like editorial, informational, or entertainment content. It may appear as blog posts, news-like articles, comparison guides, reviews, videos, podcasts, or social media content. Native advertising is not necessarily unlawful, but its commercial nature must be clear.

A consumer reading a “top 10 product” article should know whether the ranking is independent or paid. A video reviewing a product should disclose whether the creator received payment, commission, or free products. A platform recommending “best sellers” should not mislead consumers if ranking is affected by paid placement.

Hidden sponsorship harms consumer trust and may distort economic decisions. Businesses should therefore ensure that sponsored content is clearly identified and that claims made in such content are truthful and substantiated.

Fake Reviews and Manipulated Ratings

Customer reviews play a major role in consumer decisions. Online marketplaces, booking platforms, restaurants, mobile applications, electronics sellers, private healthcare providers, and service providers often depend on ratings and reviews.

Fake reviews, purchased testimonials, manipulated ratings, deletion of negative reviews without justification, or presenting paid endorsements as genuine consumer experiences may amount to misleading commercial practice. Consumers may buy a product or service because they believe other users had positive experiences, when in fact the reviews are not authentic.

Businesses should not create fake customer accounts, pay for undisclosed positive reviews, pressure consumers to remove negative comments, or selectively display only favorable reviews in a misleading way. Platforms should also maintain transparent review systems and disclose whether reviews are verified.

Misleading Comparative Advertising

Comparative advertising can be useful for consumers if it is accurate, objective, and fair. A business may compare price, performance, quality, energy consumption, durability, or features with competitors. However, comparative advertising becomes problematic if it uses false data, outdated information, unfair selection criteria, or misleading presentation.

For example, a brand may claim that its product is “cheaper than all competitors” without reliable market evidence. A service provider may compare only selected features while hiding important disadvantages. A platform may claim to be “the fastest” or “the most trusted” without objective proof.

Businesses using comparative claims should keep evidence supporting each statement. General superiority claims may be challenged unless they are clearly framed as subjective slogans or supported by objective data.

Misleading Environmental Claims and Greenwashing

Environmental claims are increasingly common. Businesses advertise products as “eco-friendly,” “green,” “sustainable,” “carbon neutral,” “recyclable,” “natural,” or “environmentally safe.” These claims may influence consumers who wish to make responsible purchasing decisions.

However, environmental claims must be accurate, specific, and substantiated. A broad claim such as “environmentally friendly” may be misleading if only one small component of the product has an environmental benefit while the overall product does not. A business should not exaggerate ordinary legal compliance as an exceptional environmental advantage.

Greenwashing may be treated as misleading advertising if it gives consumers an inaccurate impression about the environmental impact of a product, service, or company. Businesses should use clear terminology and preserve evidence such as certifications, test reports, supply chain records, and environmental assessments.

Misleading Advertising in Distance Sales and E-Commerce

Distance sales and e-commerce are particularly vulnerable to misleading advertising because consumers cannot physically inspect products before purchase. They rely on photos, descriptions, prices, delivery promises, reviews, and return policies.

Under Turkish consumer law, distance contracts are subject to pre-contractual information duties and withdrawal rights. Where a consumer buys online, the seller must provide essential information about the product, seller identity, total price, delivery costs, withdrawal rights, and legal remedies. The Ministry of Trade explains that distance contracts are regulated under Law No. 6502 and the Distance Contracts Regulation.

If an online advertisement misrepresents the product, hides delivery fees, exaggerates delivery speed, falsely promises easy returns, or conceals withdrawal exceptions, the seller may face both individual consumer claims and administrative review.

E-commerce businesses should review the entire customer journey: advertisement, landing page, product page, cart, checkout, payment screen, order confirmation, delivery notice, return page, and customer service responses. Misleading advertising risk may arise at any point.

Misleading Advertising and Unfair Contract Terms

Misleading advertising may also be linked to unfair contract terms. A business may advertise a service as flexible, refundable, or risk-free, while the contract contains hidden restrictions. A platform may promote “cancel anytime,” but the actual cancellation process may be burdensome. A private school may advertise comprehensive services but exclude essential components in the contract.

Turkish Consumer Law protects consumers against unfair contract terms in standard form consumer contracts. If a business uses advertising to create one impression and contract terms to impose another, the consumer may challenge both the advertisement and the contractual clause.

The key question is whether the consumer was given accurate and complete information before entering the transaction. If the advertisement created a misleading expectation, the business may not be able to rely on hidden terms to defeat the consumer’s claim.

Consumer Remedies for Misleading Advertising

Consumers affected by misleading advertising may have several possible remedies depending on the facts. They may file a complaint with the Advertising Board, apply to a Consumer Arbitration Committee, pursue mediation and Consumer Court litigation for higher-value disputes, or claim remedies under defective goods, defective services, unfair contract terms, or general compensation rules.

If the misleading advertisement caused the consumer to buy a product that does not have promised qualities, the consumer may rely on defective goods provisions. If the advertised service was not delivered as promised, defective service remedies may apply. If hidden fees were collected, the consumer may request reimbursement. If the advertisement caused financial loss, compensation may be considered where legal conditions are met.

A consumer complaint should be evidence-based. The consumer should preserve screenshots, videos, social media posts, brochures, price tags, campaign pages, order confirmations, invoices, messages, and product/service documents. Since online advertisements may disappear quickly, early documentation is critical.

Business Liability and Administrative Sanctions

Businesses that publish misleading advertisements or engage in unfair commercial practices may face administrative sanctions. These may include suspension of the advertisement, correction requirements, and administrative fines. The Ministry of Trade’s public announcements show that the Advertising Board actively examines misleading and deceptive advertisements and unfair commercial practices.

Administrative liability does not necessarily eliminate private civil liability. A consumer may still pursue refund, replacement, cancellation, price reduction, or compensation depending on the transaction. Conversely, even if a consumer does not file an individual lawsuit, the Advertising Board may still examine the advertisement as a matter of public consumer protection.

For businesses, the risk is therefore both regulatory and civil. A misleading campaign may trigger multiple consequences: Board sanctions, consumer refund claims, platform penalties, negative publicity, and loss of customer trust.

Evidence Businesses Should Keep

Businesses should keep evidence supporting all advertising claims. This is especially important for price comparisons, discount campaigns, performance claims, health or beauty claims, environmental statements, stock claims, customer reviews, influencer collaborations, and technical specifications.

Useful evidence may include:

• Prior price records
• Campaign start and end dates
• Stock records
• Product test reports
• Scientific substantiation
• Supplier certificates
• Influencer agreements
• Advertising approval records
• Screenshots of published content
• Customer communication records
• Website version records
• Terms and conditions applied during the campaign
• Refund and return records

If a business cannot prove its advertising claims, it may face difficulty before the Advertising Board or in consumer litigation.

Practical Compliance Checklist for Businesses

A business operating in Turkey should review advertisements before publication. The review should ask:

Is the claim true?
Can the business prove it?
Is any material condition hidden?
Is the price complete and clear?
Is the discount genuine?
Are stock and urgency claims accurate?
Are influencer partnerships disclosed?
Are environmental, health, or performance claims substantiated?
Do the advertisement and contract say the same thing?
Is the return or cancellation promise consistent with the actual process?
Are consumers likely to misunderstand the message?

Legal review is especially important for nationwide campaigns, influencer promotions, health-related products, financial services, e-commerce sales, discount periods, subscription models, and high-value consumer goods.

Practical Advice for Consumers

Consumers should be cautious with advertisements that promise extraordinary benefits, urgent limited offers, very large discounts, guaranteed results, “free” services with hidden conditions, or influencer recommendations that do not clearly disclose sponsorship.

Before purchasing, consumers should save screenshots of the advertisement, product page, price, campaign conditions, seller identity, delivery promise, and return policy. If the advertisement later proves misleading, these records may be decisive.

If a consumer suffers harm, the complaint should be structured clearly. The consumer should explain what was advertised, how it was misleading, how it affected the purchasing decision, what was purchased, what loss occurred, and what remedy is requested.

Why Legal Assistance Matters

Misleading advertising disputes may involve consumer law, administrative law, contract law, e-commerce rules, advertising regulations, intellectual property issues, data protection, and sector-specific restrictions. Legal assistance can help consumers identify the strongest remedy and help businesses prevent risky campaigns before publication.

For consumers, a lawyer can help determine whether the claim should be filed before the Advertising Board, Consumer Arbitration Committee, mediation, Consumer Court, or another authority. For businesses, legal review can reduce the risk of administrative fines, consumer lawsuits, and reputational damage.

High-risk sectors such as health, cosmetics, supplements, financial products, private education, tourism, real estate, automotive, e-commerce, and influencer marketing should be handled with particular care.

Conclusion

Misleading advertising and unfair commercial practices under Turkish Consumer Law are not limited to obvious false statements. They include incomplete information, hidden conditions, fake discounts, false urgency, undisclosed sponsorship, misleading reviews, exaggerated product descriptions, unclear pricing, unfair subscription practices, and manipulative digital sales techniques.

Turkish law requires commercial advertisements to be honest, accurate, transparent, and compliant with Advertising Board principles, public order, morality, and consumer protection rules. Misleading or aggressive commercial practices are prohibited, and where such practices are carried out through advertising, they fall under Advertising Board supervision.

For consumers, the key is to preserve evidence, act quickly, and choose the correct legal remedy. For businesses, the safest approach is to substantiate every claim, disclose material conditions, avoid hidden fees, ensure transparent influencer marketing, maintain accurate discount records, and align advertising with contract terms and actual service delivery.