Is it legal to copy a competitor's ad? Where the line is

Copying how a competitor's ad is built is generally lawful: the order of the beats, the pacing, the kinds of shot, the format. Copying what it is made of is not: the footage, the wording of the script, the person on screen, the voice, the music, the logo, the claims. Copyright is only one of the laws involved: trademarks, the rights of the person on screen, advertising law and the platforms' rules matter as much.

This is general information from a company, not legal advice, so ask a lawyer about your own ad and your own country.

Copyright: expression is protected, ideas are not

US copyright law protects "original works of authorship", among them literary works, musical works, audiovisual works and sound recordings. An ad's footage, script, music and artwork all fall inside that list.

The same section then draws the line. 17 U.S.C. § 102(b) says copyright does not extend to "any idea, procedure, process, system, method of operation, concept, principle, or discovery", however it is described or embodied in the work. Article 9(2) of the TRIPS Agreement, which binds the members of the World Trade Organization, says copyright protection extends "to expressions and not to ideas, procedures, methods of operation or mathematical concepts as such".

For an ad, that means:

• Not protected by copyright: the idea of a 30-second testimonial, a problem-then-solution structure, a hook in the first two seconds, a before-and-after comparison, captions in the lower third, a cut every two seconds.
• Protected: the actual video, the sentences of the script, the recorded voice, the music, the graphics and illustrations.

Two cautions. First, copying does not have to be literal to infringe. A close paraphrase of a script, or a re-shoot that reproduces the distinctive creative choices of the original frame by frame, can still take protected expression, and where that line falls is decided case by case. Second, the more original and detailed the thing you take, the less it looks like an idea. "Open on the problem" is an idea. An invented character in an invented scene with its own joke is expression.

The US Copyright Office also says that names, titles and short phrases are not protected by copyright (Circular 33). That does not make a competitor's slogan free to use: slogans and names are trademark territory.

Trademarks: do not let anyone think you are them

Trademark law protects the signs that tell a buyer who is selling: brand names, logos, slogans and, in some cases, the look of a product or its packaging (trade dress). The question is confusion, not copying. In the US, 15 U.S.C. § 1125(a) creates liability for using a word, name, symbol or device in a way that is "likely to cause confusion" about affiliation, origin, sponsorship or approval.

So a remade ad must not show the competitor's logo, product, packaging or name, or borrow their visual identity so closely that a viewer takes your ad for theirs.

Naming a competitor on purpose, to compare, is a different matter and the rules differ by country. In the EU, Directive 2006/114/EC permits comparative advertising only if it meets a list of conditions: it is not misleading, it objectively compares material, relevant, verifiable and representative features, it does not discredit the competitor's marks or goods, it does not take unfair advantage of their reputation, and it does not create confusion. In the US, the same § 1125(a) covers advertising that misrepresents "his or her or another person's goods". Get a comparative ad reviewed before it runs.

The person on screen: likeness and voice

The creator in a competitor's ad has rights of their own, separate from the brand's. In the US this is the right of publicity, which prevents unauthorized commercial use of a person's name, likeness or other recognizable aspects of their persona. It is mostly state law, and the Legal Information Institute at Cornell notes that only about half the states distinctly recognize it (LII, "Publicity"). What is covered changes from state to state.

In the EU and the UK, a recognizable face or voice is also personal data, so data protection law applies to using it. The EU's AI Act adds a duty to disclose deepfakes, which has applied since 2 August 2026. Whether a given ad falls under it depends on what the ad shows.

The practical rule is the same everywhere: do not reuse the person, generate a lookalike, or imitate their voice. A generated presenter should resemble nobody in particular.

Claims and testimonials: your evidence, not theirs

A competitor's study, review count, award and guarantee are theirs. In the US, the FTC's substantiation policy requires advertisers to have a reasonable basis for their claims before the ad is disseminated. Every claim in your version needs your own evidence, and if you do not have it, the line goes.

Testimonials need the most care in a remade ad, because many winning ads are a customer talking. Three FTC sources matter:

• The Endorsement Guides say endorsements must reflect the endorser's honest opinions or experience (16 CFR § 255.1), and that ads presenting what are represented to be "actual consumers" should use actual consumers in both audio and video, or clearly and conspicuously disclose that they are not (16 CFR § 255.2).
• The rule on fake reviews and testimonials, in effect since 21 October 2024, makes it a violation for a business to create or disseminate a consumer testimonial that materially misrepresents that the testimonialist exists, that they used the product, or what their experience was (16 CFR § 465.2). Courts can impose civil penalties for knowing violations.
• The FTC's questions and answers on that rule say it has "no blanket prohibition on the use of AI-generated avatars in marketing", and that actors in "an obviously fictional dramatization" are not giving testimonials. They also warn that using actors to portray testimonialists could still be deceptive under the FTC Act.

Read together: a generated presenter who explains or demonstrates your product is one thing. A generated person who says "I used this for a month and my skin cleared up", presented as a real customer, is a fake testimonial. If your reference ad is a first-person customer story, either base your version on a real customer's real experience, or rewrite it so nobody would take the speaker for an actual customer, or disclose clearly that they are not. Other countries have their own rules on this.

Music

A song carries two copyrights, the composition and the recording, and both appear in the statute's list of protected works. A track that is fine in an organic post is not automatically licensed for an ad. TikTok says businesses cannot use its general music library for commercial use and must use the Commercial Music Library, or hold a proper license for anything else. Do not reuse the reference ad's track. Use music licensed for advertising or made for your ad.

The platforms' rules on AI-generated content

These are the rules in October 2026. They change, so open the pages before a launch.

• TikTok. Its ads policy allows AI-generated and significantly AI-edited content if you apply the AIGC label or add your own clear disclaimer, caption, watermark or sticker. It says undisclosed AI-generated content will be rejected or restricted.
• Meta. Meta says it adds an "AI info" label to ads created or significantly edited with its generative tools, and to ads it detects as made with third-party AI tools. The label normally sits in the ad's three-dot menu. When Meta's tools produce an AI-generated photorealistic human, it appears next to "Sponsored" (Meta, updated June 2026). Advertisers must disclose AI-made media themselves in ads about social issues, elections or politics (Meta help).

What you can take, what you cannot, and the grey areas

The first column says "generally" because the line between an idea and its expression is drawn case by case. The safer remake keeps the skeleton and changes everything a viewer would recognize.

ReplicateAds is built around this line: it keeps the reference's beat order, timing, shot types and caption positions, writes the script from your own product page, and generates new footage, voice and music. It does not replace the checks below, and each finished ad comes with a shot-by-shot review that names what to look at.

Checklist before you publish a remade ad

1. Watch the reference and your ad side by side. No frame, sound or graphic from the reference is in yours.
2. Read both scripts side by side. No sentence is the same or a light rewording, and the slogan is yours.
3. The presenter does not look or sound like the person in the reference, or like any real person.
4. No competitor logo, name, product or packaging appears, including in the background. Your branding is visible enough that nobody could think the ad is theirs.
5. List every factual claim in the ad. Next to each, write where your evidence is. Delete any claim without one.
6. Any testimonial is a real customer's real experience, or the ad makes clear the speaker is not an actual customer.
7. You hold a license that covers advertising for the music, or it was made for the ad.
8. The AI label is applied on TikTok, and you have read the current Meta and TikTok policy pages for your product category.
9. If the ad names or compares with a competitor, runs in a regulated category such as health or finance, or sits in the grey column above, a lawyer has seen it.

For the method, see how to replicate a competitor's ad.