Introduction
Advertising campaigns in Turkey are no longer limited to television commercials, newspaper ads or outdoor billboards. Today, a single campaign may include social media posts, influencer collaborations, SMS messages, e-mail marketing, targeted digital ads, AI-generated visuals, discount banners, consumer reviews, marketplace listings, mobile app notifications, search engine ads and personalized product recommendations. This multi-channel structure creates powerful marketing opportunities, but it also increases legal risk.
A legal compliance checklist for advertising campaigns in Turkey is essential for every business that promotes goods or services to Turkish consumers. Advertisers, advertising agencies, e-commerce platforms, influencers, marketplace sellers, healthcare providers, food supplement companies, cosmetic brands, financial service providers and international businesses targeting Turkey must ensure that their campaigns comply with Turkish advertising law, consumer protection law, unfair commercial practices rules, data protection law and sector-specific regulations.
The main legal framework is based on Law No. 6502 on the Protection of Consumers and the Regulation on Commercial Advertising and Unfair Commercial Practices. The Advertising Board, known in Turkish as the Reklam Kurulu, is the main authority supervising commercial advertisements and unfair commercial practices. The Ministry of Trade states that the Advertising Board may determine advertising principles, examine and supervise advertisements, and impose sanctions such as suspension, correction, administrative fines and temporary suspension.
Advertising compliance became even more important in 2026. The Ministry of Trade announced that amendments to the Regulation on Commercial Advertising and Unfair Commercial Practices were published in the Official Gazette on 1 July 2026 to strengthen consumer protection in digitalized markets. These amendments cover targeted advertising, AI-generated advertisements, influencer marketing, discount advertising, environmental claims, consumer reviews and complaint platforms.
This article provides a practical legal checklist for advertising campaigns in Turkey. It explains how businesses should review campaign claims, price information, influencer posts, targeted ads, personal data processing, health claims, food supplement advertising, children’s advertising, consumer reviews, commercial electronic messages and Advertising Board enforcement risks before publishing any advertisement.
1. Identify Whether the Content Is an Advertisement
The first step is to determine whether the content is a commercial advertisement. A campaign may be legally treated as advertising even if it does not look like a traditional advertisement. A social media story, influencer video, product review, e-commerce listing, sponsored search result, marketplace badge, app notification, discount code, blog post or customer testimonial may all be commercial advertising if it promotes goods, services, brands or commercial activity.
The legal assessment depends on substance, not format. If the content is designed to influence consumer decisions and has a commercial purpose, it should be reviewed under Turkish advertising law. Businesses should not assume that informal content is outside regulation simply because it appears on social media or is written in a personal tone.
Before launching a campaign, businesses should ask:
Is the content promoting a product, service, brand or seller?
Is there a commercial benefit?
Is the content directed at consumers in Turkey?
Could the average consumer understand it as independent information rather than advertising?
Does the content include price, performance, health, environmental or superiority claims?
If the answer to any of these questions is yes, legal review is necessary.
2. Make Sure the Advertisement Is Clearly Identifiable
Advertisements must be recognizable as advertising. Hidden advertising is one of the major risks in modern campaigns. It occurs when commercial content is presented as independent editorial content, personal opinion, consumer experience or ordinary social media activity.
This is especially important for influencer marketing. The Ministry of Trade’s guide on social media influencers applies to commercial advertisements and unfair commercial practices made by influencers toward consumers. Sponsored posts, product gifts, affiliate links, discount codes, free travel, event invitations and commission-based promotions should be clearly disclosed.
A compliant influencer campaign should use visible and understandable disclosure language. Expressions such as “advertisement,” “promotion,” “sponsored,” or platform-appropriate equivalents should be placed where consumers can notice them easily. The disclosure should not be hidden at the end of a long caption, buried among hashtags, shown too briefly in a video or placed in a color that blends with the background.
Brands should also remember that disclosure alone is not enough. The content must also be truthful, substantiated and compliant with sector-specific rules.
3. Check All Claims for Accuracy and Substantiation
Every factual advertising claim must be accurate and provable. A claim may concern price, quality, speed, durability, effectiveness, health benefit, environmental impact, customer satisfaction, market leadership, delivery time, energy efficiency or scientific testing.
Risky expressions include:
“Number one”
“Best in Turkey”
“Clinically proven”
“Lowest price”
“Most preferred”
“Guaranteed result”
“100% effective”
“Eco-friendly”
“Doctor recommended”
“Risk-free”
“Permanent solution”
Before publishing such claims, the advertiser should verify whether the claim is objectively true and whether evidence exists. Evidence may include scientific tests, independent reports, laboratory results, market research, audited sales data, certificates, price history records, customer records or official approvals.
A common compliance mistake is preparing the campaign first and searching for proof later. In a proper compliance system, substantiation must exist before publication. If the Advertising Board requests documents, the advertiser should be able to prove that the claim was accurate at the time the advertisement was published.
4. Avoid Misleading Overall Impression
A statement may be technically true but still misleading if the overall impression is deceptive. Turkish advertising law evaluates not only isolated words but also visuals, design, context, disclaimers, subtitles, colors, music, platform, consumer perception and omissions.
For example, an advertisement may be misleading if:
A discount is real but applies only to a small number of products.
A health claim is softened but visuals imply disease treatment.
A product photo is digitally enhanced to show unrealistic results.
A “free” offer hides mandatory service fees.
A countdown timer creates false urgency.
A comparison uses non-equivalent products.
A consumer review section hides negative delivery reviews.
A green claim relates only to packaging but suggests the entire product is sustainable.
The safest approach is to review the campaign from the perspective of the average consumer. If the consumer could reasonably misunderstand the real nature, price, benefit, scope or condition of the offer, the advertisement should be revised.
5. Review Price Claims and Discount Campaigns
Price and discount claims are among the most frequently scrutinized advertising areas. Campaigns such as “50% off,” “limited-time offer,” “lowest price,” “buy one get one free,” “free shipping,” “special member price” and “last chance” must be accurate and transparent.
A discount campaign should clearly show the conditions, campaign period, product scope, stock limitations and reference price. Businesses should keep price history records to prove that the pre-discount price is genuine. Artificially increasing prices before a campaign and then presenting the inflated price as the previous price may be misleading.
The 2026 amendments are particularly important for discount advertising. The Ministry of Trade announced that conditional sales advertisements providing discounts or other benefits are also subject to discount advertising rules. The same announcement also addressed reference price rules for discounted goods, perishable goods and services.
Before publishing a discount advertisement, businesses should check:
Is the previous price real and documentable?
Is the discount rate accurate?
Are campaign dates clear?
Are excluded products clearly stated?
Is stock limited?
Are delivery fees or service charges hidden?
Does the campaign use false scarcity or false urgency?
6. Check Comparative Advertising
Comparative advertising may be useful, but it is legally sensitive. A business may want to claim that its product is cheaper, faster, more effective or more durable than alternatives. Such comparisons must be objective, verifiable, fair and not misleading.
Comparative advertising should compare products or services meeting the same need or intended for the same purpose. The comparison should be based on material, essential, typical and verifiable characteristics. It should not denigrate competitors, create confusion, use competitor distinctive signs unlawfully or make unsupported superiority claims.
For example, “30% faster according to an independent test conducted under X conditions” is safer than “the best product in the market.” Similarly, comparing two service packages is only fair if the scope, duration, price and conditions are equivalent.
Businesses should also be careful with environmental, health and food supplement comparisons because sector-specific restrictions may limit what can be compared.
7. Review Influencer and Sponsored Content Compliance
Influencer marketing is a major advertising channel in Turkey. Brands frequently work with influencers for cosmetics, food supplements, clothing, restaurants, hotels, digital services, mobile apps, education programs, healthcare services and e-commerce campaigns.
A proper influencer compliance review should include:
Clear disclosure of sponsorship.
Written influencer agreement.
Approved claims and prohibited wording.
Disclosure of discount code conditions.
Ban on fake personal experience.
Ban on unauthorized health claims.
Rules on filters, before-and-after visuals and AI-generated content.
Content approval before publication.
Post-publication monitoring.
Screenshot and archive preservation.
Influencers should not say that they purchased, used or personally benefited from a product if this is not true. They should not present sponsored content as a spontaneous recommendation. They should not make scientific, medical, environmental or superiority claims unless those claims are legally approved and substantiated.
Brands should not assume that legal responsibility belongs only to the influencer. If the brand pays, instructs, approves or benefits from the content, it may face Advertising Board risk.
8. Check Targeted Advertising and Personal Data Protection
Targeted advertising uses consumer data, online behavior, interests, location, purchase history, cookies, device identifiers or profiling to show personalized ads. In Turkey, targeted advertising must be evaluated under both advertising law and personal data protection law.
The 2026 amendments introduced specific transparency rules for targeted advertising. The Ministry of Trade stated that advertisers may engage in targeted advertising if they provide consumers with direct and easily accessible information about the criteria used to show the advertisement and how those criteria can be changed. The same amendments prohibit targeted advertising directed at children through profiling based on personal data.
From a KVKK perspective, targeted advertising often involves personal data processing. Businesses should identify the legal basis for processing, provide privacy notices, obtain explicit consent where required and respect data subject rights.
Cookies are particularly important. The Personal Data Protection Board has stated that strictly necessary cookies may be used without explicit consent, but advertising, marketing and performance cookies are subject to explicit consent.
Before using targeted ads, businesses should check:
Which data are collected?
Are cookies, pixels or SDKs used?
Is explicit consent required?
Is the cookie banner fair and non-manipulative?
Are children excluded from profiling-based targeting?
Are advertising criteria explained to consumers?
Can consumers change advertising preferences?
Are third-party ad networks involved?
Are cross-border data transfers assessed?
9. Avoid Dark Patterns and Manipulative Digital Design
Advertising compliance is not only about words. The design of a website, app or checkout flow may itself create an unfair commercial practice.
Examples of risky digital design include:
Hard-to-find unsubscribe buttons.
Pre-selected paid add-ons.
False countdown timers.
Hidden rejection options in cookie banners.
Subscription cancellation processes that are much harder than sign-up.
Misleading “only one left” messages.
Forced consent screens.
Confusing pricing screens.
Checkout pages that reveal mandatory fees only at the end.
The Advertising Board has recently focused on manipulative digital practices. In its 369th meeting, the Board reviewed 156 files, found 146 unlawful, imposed approximately 23 million TL in administrative fines and continued enforcement against deceptive digital guidance and unfair commercial practices.
Businesses should review user journeys, not just campaign copy. The checkout process, cookie banner, subscription flow, cancellation page, product ranking and mobile app interface should all be legally reviewed.
10. Review Consumer Reviews and Testimonials
Consumer reviews and testimonials are powerful trust signals. However, fake or unverifiable reviews may be misleading. Businesses should not publish fabricated reviews, buy positive comments, suppress negative feedback or present sponsored endorsements as independent consumer experiences.
The 2026 amendments include important review rules. According to the Ministry of Trade, consumer reviews obtained from platforms where purchase verification is not possible may not be published. Where reviews are categorized under headings such as product, service, delivery, seller or provider, all reviews must be shown clearly, understandably, distinguishably and easily accessibly in the same area.
Before using reviews in an advertising campaign, businesses should check:
Is the review from a verified purchaser or real service recipient?
Is the review current and relevant?
Has it been edited in a way that changes meaning?
Are negative reviews hidden?
Are incentives disclosed?
Are health or performance claims included?
Are third-party reviews imported from unverifiable platforms?
Are AI-generated testimonials prohibited?
Testimonials should reflect genuine experience. Exceptional results should not be presented as typical outcomes. Influencer testimonials must also disclose sponsorship.
11. Review Health Claims Carefully
Health-related advertising is one of the highest-risk areas in Turkey. Advertisements for healthcare services, cosmetics, food supplements, wellness products, medical devices, weight-loss products and similar products must be reviewed carefully.
A campaign should not claim or imply that a product diagnoses, treats, prevents or cures disease unless this is legally permitted. Expressions such as “cures,” “treats,” “prevents illness,” “doctor approved,” “guaranteed result,” “risk-free,” “permanent solution” and “clinically proven” should be used only if legally allowed and strongly substantiated.
The Ministry of Trade’s consumer guidance states that advertisements for medicines, medical devices, health services, foods, food supplements, cosmetics and similar regulated categories must also comply with their own sector-specific advertising and promotion rules.
Before publishing a health-related advertisement, businesses should ask:
Is the product legally allowed to make health claims?
Does the advertisement imply disease treatment?
Are doctors, pharmacists or medical visuals used?
Are before-and-after images realistic?
Are filters or AI visuals misleading?
Are consumer testimonials making treatment claims?
Does influencer content include unauthorized health statements?
Are vulnerable consumers being exploited?
12. Check Food Supplement Advertising
Food supplements are not medicines. They are food products intended to support normal nutrition, and they should not be advertised as treatment, prevention or cure for diseases.
The 2026 amendments expressly addressed food supplement advertising. According to the Ministry of Trade, food supplements may not be advertised in a way that creates the impression that they replace foods consumed as part of normal nutrition. The Ministry also stated that comparative advertising may be possible for these products except for matters falling within the scope of health claims.
This means that supplement advertisements should avoid expressions such as:
“Replaces daily nutrition.”
“Prevents flu.”
“Treats joint pain.”
“Cures skin problems.”
“Essential for every child.”
“Alternative to medication.”
“Guaranteed immunity.”
Supplement campaigns should be legally reviewed across all channels, including e-commerce descriptions, marketplace Q&A areas, influencer posts, consumer reviews, social media comments and product tags.
13. Check Environmental Claims and Greenwashing Risk
Environmental claims are increasingly common. Businesses use expressions such as “eco-friendly,” “green,” “sustainable,” “carbon neutral,” “recyclable,” “biodegradable,” “natural” and “climate friendly.” These claims can strongly influence consumers, but they also create greenwashing risk.
The 2026 amendments strengthened rules on environmental advertising. The Ministry of Trade announced that general expressions such as “environmentally friendly” should not be used without explanation; environmental claims must specify the stage of the product or service life cycle they relate to; and certificates or approvals must be supported by documents from competent institutions, universities, accredited organizations or independent testing and evaluation bodies.
A lawful environmental claim should be specific. Instead of saying “eco-friendly product,” a safer claim may be “packaging contains 80% recycled material,” if true and documented. Businesses should avoid green visuals, leaves, nature images or sustainability badges that create a broader environmental impression than the evidence supports.
14. Check Advertising Directed at Children
Children are a vulnerable consumer group. Advertisements directed at or likely to affect children must be reviewed with higher care. Businesses should avoid exploiting children’s lack of experience, emotional vulnerability, imagination or pressure on parents.
Child-focused campaigns should not:
Encourage dangerous behavior.
Promote excessive consumption.
Pressure children to ask parents to buy products.
Suggest that a product makes a child superior or more popular.
Misrepresent toy functions or game features.
Hide in-app purchases.
Use profiling-based targeted advertising directed at children.
The 2026 amendments specifically prohibit targeted advertising directed at children through profiling based on personal data. This is particularly important for mobile games, educational apps, video platforms, toy brands, family influencer accounts and child-oriented digital services.
15. Review Commercial Electronic Messages
Advertising campaigns often include SMS, e-mail, phone calls, app notifications or other direct marketing messages. These may be subject to commercial electronic message rules, consent requirements, İYS obligations and KVKK compliance.
Businesses should not send marketing SMS or e-mails merely because they obtained a phone number or e-mail address during a transaction. Contact information collected for delivery, billing or appointment purposes should not automatically be used for marketing.
A compliant electronic marketing campaign should include:
Valid marketing consent.
Proper İYS registration where applicable.
Clear sender identity.
Clear campaign content.
Easy and free opt-out mechanism.
Updated unsubscribe records.
KVKK privacy notice.
Separate consent for marketing where required.
Marketing consent should not be bundled with contract approval, payment, membership creation or SMS verification. Consent must be freely given, specific and informed.
16. Check Sector-Specific Restrictions
Some products and services are subject to special advertising rules. General advertising compliance is not enough for these sectors.
High-risk sectors include:
Medicines and medical devices.
Healthcare services.
Food supplements.
Cosmetics.
Foods and beverages.
Financial services.
Insurance.
Real estate.
Education.
Alcohol and tobacco.
Children’s products.
Gambling-like services.
Environmental and sustainability claims.
The Ministry of Trade’s consumer guidance expressly notes that advertisements for medicines, medical devices, health services, foods, food supplements, cosmetics and other sensitive categories must also comply with their own sector-specific advertising and promotion rules.
Before publishing a campaign, businesses should identify the product category and review whether special rules apply.
17. Preserve Evidence and Approval Records
A strong compliance system requires documentation. If the Advertising Board, consumers or competitors challenge a campaign, the advertiser should be able to prove that it acted lawfully.
Businesses should preserve:
Campaign briefs.
Legal approvals.
Claim substantiation files.
Scientific tests and reports.
Price history records.
Certificates and licenses.
Influencer contracts.
Consent records.
Cookie consent logs.
Screenshots of published ads.
Social media story archives.
Consumer review verification data.
Discount campaign conditions.
Targeting criteria explanations.
Opt-out logs.
Short-lived digital content such as stories, reels, live streams and push notifications should be archived. A campaign may disappear from the platform but still become the subject of a complaint.
18. Prepare for Advertising Board Review
The Advertising Board actively supervises advertisements and unfair commercial practices. It may act upon consumer complaints, competitor complaints, institutional applications or ex officio review.
Administrative fines can be substantial. For 2026, the Ministry of Trade announced that 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 unfairness of the violation, benefit obtained, harm caused, fault, economic situation of the violator, advertising medium and whether the practice occurs nationwide or through advertising.
Sanctions may include suspension, correction, administrative fines, temporary suspension and access blocking in online environments. The commercial harm may also include campaign interruption, reputational damage, marketplace restrictions, influencer disputes and competitor claims.
Businesses should create an internal response plan for Advertising Board inquiries. The plan should identify who will collect documents, prepare legal explanations, coordinate with agencies and remove or correct disputed content where necessary.
19. Final Pre-Publication Advertising Compliance Checklist
Before publishing an advertising campaign in Turkey, businesses should apply the following final checklist:
Is the content clearly identifiable as advertising?
Are all claims accurate and substantiated?
Could the overall impression mislead the average consumer?
Are material conditions clearly disclosed?
Are price and discount claims documentable?
Are comparative claims objective and fair?
Are influencer disclosures visible and understandable?
Are sponsored relationships properly disclosed?
Are consumer reviews verified and balanced?
Are health, food supplement or cosmetic claims legally permitted?
Are environmental claims specific and substantiated?
Are children protected from manipulation and profiling-based targeting?
Are targeted advertising criteria explained to consumers?
Are advertising cookies subject to valid consent where required?
Are commercial electronic messages based on valid consent?
Are sector-specific rules reviewed?
Are AI-generated characters or digital copies disclosed where required?
Are dark patterns avoided?
Are all campaign records preserved?
If any answer is uncertain, the campaign should not be published until legal review is completed.
Conclusion
A legal compliance checklist for advertising campaigns in Turkey is essential because advertising law now covers a wide range of traditional and digital practices. A single campaign may involve misleading advertising risk, unfair commercial practices, influencer disclosure obligations, discount rules, targeted advertising transparency, cookie consent, KVKK compliance, consumer review verification, health claim restrictions, environmental claim substantiation, child protection and commercial electronic message rules.
The Advertising Board has broad powers to examine and sanction unlawful advertisements. Recent enforcement shows that digital advertising, manipulative interfaces, misleading claims and unfair commercial practices are actively monitored. In its 369th meeting, the Board reviewed 156 files, found 146 unlawful and imposed approximately 23 million TL in administrative fines.
For businesses operating in Turkey or targeting Turkish consumers, advertising compliance should not be treated as a final formality after the creative process. It should be built into campaign planning from the beginning. Marketing teams, legal counsel, agencies, influencers, data protection officers and platform managers should work together before publication.
The safest approach is simple: be transparent, be accurate, prove every claim, disclose sponsorships, respect consumer data, avoid manipulation, protect children and keep records. A lawful campaign is not only a campaign that avoids fines. It is also a campaign that builds consumer trust, protects brand reputation and supports fair competition in the Turkish market.
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