Advertising law
Do you advertise your products or services? Naturally, you want to stand out and persuade. But is every advertisement permitted? And what can you do if a competitor compares its products or services with yours in an inaccurate manner? Advertising law determines what is and is not permitted.
Advertising law comprises the rules that determine when advertisements are permitted and when they constitute misleading advertising or unfair competition.
If you breach the rules, you may face complaints before the Dutch Advertising Code Committee, claims from competitors or even court proceedings. It is therefore important to know in advance what is and is not permitted. If you are unsure about an advertisement or campaign, it is advisable to have it legally reviewed in good time.
What is advertising law?
Creating advertising is one thing; ensuring that your advertisements comply with the law is another. Advertising law draws the line between persuasion and deception. This area of law helps ensure that advertising is fair, transparent and legally permitted.
It comprises rules from advertising legislation, European directives and self-regulation through the Dutch Advertising Code Committee. These rules are intended to ensure that consumers are not misled and that competitors compete fairly with one another.

In essence, you can make many claims in advertising, provided that they are accurate, verifiable and do not create a misleading impression.
Advertising law also regularly intersects with intellectual property law, for example where you use another party's trade mark, slogan, product or image.
Advertising law may be relevant to, among other things:
- online advertisements and social media campaigns
- price and quality claims
- sustainability and environmental claims
- comparisons with competitors
- marketing of new or innovative products
Where do things often go wrong in practice under advertising law?
In practice, issues arise regularly. Legal risks can quickly arise, particularly when formulating claims, comparing products or services with those of competitors and making sustainability claims.
1. Claims that go just a little too far
An attractive message is easy to create, but a claim must be accurate. Misleading advertising may arise, for example, from:
- incorrect information;
- incomplete information; and
- small print that creates a different overall impression.
Under the rules on misleading advertising, you must not provide information that misleads consumers. If you do, you risk complaints, damages claims and potentially legal proceedings.
2. Complaints to the Dutch Advertising Code Committee
Not only competitors but also consumers can submit a complaint about an advertisement to the Dutch Advertising Code Committee. An adverse ruling can:
- cause reputational damage; and
- lead to the amendment or withdrawal of your campaign.
3. Comparing yourself with competitors: what is and is not permitted?
Comparative advertising can be effective, but the scope is limited. Comparative advertising is permitted only if you:
- make an objective comparison;
- use verifiable information; and
- do not unnecessarily discredit or denigrate your competitor.
4. Sustainability claims under scrutiny
Claims such as “sustainable”, “green” or “climate neutral” may be attractive, but they involve significant legal risks. Sustainability claims that are insufficiently substantiated are increasingly characterised as greenwashing.
Regulators and the Dutch Advertising Code Committee scrutinise such claims closely. What may have been acceptable in the past may no longer be acceptable today.
5. Use of other parties' trade marks and names
Do you mention a competitor in your advertising? Or use a trade mark? If so, you are operating at the intersection of intellectual property law and advertising law. Incorrect wording may lead to:
- trade mark infringement;
- unfair competition; and
- legal proceedings.
How can you avoid legal risks in advertising?
Many advertising law disputes arise because campaigns go live too quickly without legal review. A few targeted steps can significantly reduce the risks:
- Ensure that claims are factually correct and verifiable
- Be specific and avoid vague marketing language
- Substantiate sustainability claims with clear information
- Compare products or services only where the comparison can be fair and objective
- Check that you are not infringing the rights of others
Good preparation can prevent a great deal of difficulty afterwards. It helps ensure that your campaign can remain online and reduces the risk of claims.

What can an advertising lawyer do for you?
Advertising is about persuasion and speed. Campaigns go live, are amended and scaled up, often under time pressure. In that dynamic environment, it is important to know where the legal boundaries lie without unnecessarily restricting your creativity.
An advertising lawyer therefore considers not only the rules, but above all solutions that work in the practical world of marketing and communications.
You can, for example, obtain assistance if:
- You want to have a campaign reviewed before it goes live
- You are challenged over an advertisement or receive a complaint from the Dutch Advertising Code Committee
- You believe a competitor is engaging in misleading advertising or comparing its products or services with yours in an inaccurate manner
- You want to use comparative advertising while limiting legal risks
- You need to act quickly in relation to an ongoing campaign
No standard advice, but a swift and practical assessment that enables you to move forward immediately, tailored to your message, target audience and commercial objectives.
Would you like to discuss a campaign or are you dealing with a specific issue? Feel free to contact us. We will think along with you and help you make well-considered decisions.
Frequently Asked Questions
About Advertising Law
When is an advertisement misleading?
An advertisement is misleading if it contains incorrect, unclear or incomplete information that influences consumers' behaviour.
Is comparative advertising permitted in the Netherlands?
Yes. Comparative advertising is permitted, provided that it is objective, verifiable and not misleading.
May I use a competitor's name or trade mark in my advertising?
Possibly, but only subject to strict conditions. Improper use may result in claims based on intellectual property law or advertising law.
What are the conditions for lawful comparative advertising?
The comparison must be fair, objective and verifiable and must not be misleading or denigrating.
What can I do if a competitor refers to my business inaccurately in an advertisement?
You can take action through the Dutch Advertising Code Committee or send a cease and desist letter and subsequently commence legal proceedings. Seek advice from an advertising lawyer.
What is the Dutch Advertising Code Committee and when can I submit a complaint?
The Dutch Advertising Code Committee is the independent body that assesses complaints about advertising. You can submit a complaint if an advertisement is contrary to the Dutch Advertising Code, for example because it is misleading or contains an unfair comparison.
What is the difference between a complaint to the Dutch Advertising Code Committee and court proceedings?
Proceedings before the Dutch Advertising Code Committee are quicker and more accessible, but the Committee cannot award damages. A court can.
When is a sustainability claim, such as “climate neutral” or “green”, misleading?
If the claim is not specific and substantiated, or creates a misleading impression, it may be regarded as misleading.
May I claim in advertising that I am the cheapest?
Only if you can substantiate that claim objectively and demonstrably. Otherwise, it may constitute misleading advertising.
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