Is Using a YouTube Clip Fair Use? The Four Factors

What is fair use?#

Fair use is a defense in US copyright law that allows some uses of a copyrighted work without the owner’s permission. Section 107 of the Copyright Act names example purposes: criticism, comment, news reporting, teaching, scholarship and research, as the U.S. Copyright Office Fair Use Index summarizes.

Fair use is not a license and not a category you opt into. A video essay, a review or a lecture is not fair use because of its genre. Each use is judged on its own facts, and the Copyright Office says the decision is made case by case with no formula.

For an editor, that means fair use is an argument you build with the cut itself. The clip you pick, how long it runs, what you say over it and when you cut away are the evidence. The other routes to a clip (your own footage, permission, Creative Commons) are compared in can you use YouTube clips in your video, and the wider topic sits in credits, licenses and fair use for YouTube clips.

What are the four fair use factors?#

The four fair use factors are purpose and character, nature of the work, amount and substantiality, and market effect. Courts weigh all four together, case by case. In full, section 107 of the Copyright Act asks about the purpose and character of the use, the nature of the copyrighted work, the amount and substantiality of the portion used, and the effect of the use upon the potential market for or value of the copyrighted work.

The table maps each factor to the question it asks and to the editing choices that relate to it. The questions follow the Copyright Office and YouTube Help’s fair use page; the editing column shows where each question shows up on a timeline, not how a court would rule.

Factor 1 carries the idea of transformative use. The Copyright Office describes transformative uses as ones that add something new, with a further purpose or different character, and do not substitute for the original. YouTube Help adds a warning editors should keep in mind: putting your own content next to a clip does not transform it if you add no new expression, meaning or message.

Is there a safe length for a clip?#

No. There is no number of seconds that makes a clip fair use. The Copyright Office states that no formula guarantees a predetermined percentage or amount of a work may be used without permission, and YouTube Help warns that even short uses of popular songs can trigger copyright claims. YouTube Help also says borrowing small bits is more likely to be considered fair than borrowing large portions, which is a tendency, not a threshold.

The “10 seconds” or “7 seconds” rules that circulate among creators are not law. They mix up two different things: what an automated matching system happens to catch, and what a court would find fair. A 5-second clip can still be the heart of a work, such as the winning goal of a match or the final line of a film, and the Copyright Office notes that taking the heart weighs against fair use even when the amount is small.

The opposite also holds. Courts have sometimes found use of an entire work fair in particular contexts, according to the Copyright Office, so length alone never settles the question.

The working rule for an editor is to take only what the point requires. If your commentary is about a single line of dialogue, the clip runs from just before the line to just after it. Other copyright myths, such as disclaimers and “non-commercial” labels, are covered in does giving credit make it legal.

How does fair dealing differ outside the US?#

Fair dealing is the UK’s closest equivalent to fair use, and it is narrower: a use must fit one of the purposes the law lists, then be fair. GOV.UK names criticism, review and quotation; news reporting; caricature, parody and pastiche; and illustration for instruction as separate exceptions.

GOV.UK’s guidance on exceptions to copyright says fair dealing has no statutory definition and is always a matter of fact, degree and impression. The question it poses is how a fair-minded and honest person would have dealt with the work. Two tests from the guidance map directly onto an edit: a use that substitutes for the work and costs the owner revenue is not likely to be fair, and you should ask whether the amount taken was necessary.

The UK exceptions add conditions US fair use does not state:

• Acknowledgement. Criticism, review, quotation and news reporting need a sufficient acknowledgement of the work and its author, unless that is impossible for practical reasons.
• News reporting. The news exception covers any type of work except photographs.
• Teaching. Illustration for instruction must be non-commercial and acknowledged.

YouTube Help notes that rules differ by country, that the EU relies on specific categories such as quotation, criticism, review, caricature, parody and pastiche, and that other regions apply fair dealing in their own ways. Check the rules where you publish and where your client is based.

How do editing choices affect a fair use argument?#

Editing choices are the facts a fair use argument rests on, so make them deliberately and keep a record of them. The checklist groups the choices by the factor they speak to.

• Purpose (factor 1). Talk over the clip or right after it, and make the clip the subject of your point rather than decoration. Pause, zoom or annotate to show what you analyze.
• Amount (factor 3). Cut in as late and out as early as the point allows. Show one beat of a scene, not the scene.
• Market (factor 4). Do not assemble clips into something a viewer could watch instead of the original, such as a best-of reel or a full match.
• Your own material. Carry the video with your voice, your footage and your structure, so borrowed clips support the argument instead of forming the program.

A record matters because a dispute can arrive months after upload. B-ROLL, a free Windows app for editors, downloads only the range between the in and out points you set and names each part after its range, for example Interview [02-10 to 02-38].mp4. The name records minutes and seconds only, so a part inside the second hour of a long video drops the hour.

B-ROLL also writes a .credits.txt next to every file with the title, creator, source URL and upload date, whenever yt-dlp can read those details. Both habits, range-named clips and a credit per clip, come built into the YouTube clip downloader with in and out points.

A credit file is a convenience, not proof of rights: its License line is what yt-dlp reports, and it says “Standard YouTube License” when nothing is reported, so check the license on the video page. For essays built from dozens of sources, how to collect and track clips for a video essay sets up the tracking from the first link. Paid work raises the bar again, because a commercial purpose weighs on factor 1; see YouTube clips in client and commercial projects.

What happens with Content ID claims?#

Content ID is YouTube’s automated matching system, and as of September 2026 YouTube Help states plainly that Content ID cannot decide fair use. A claim means a rights holder’s reference file matched part of your video, as YouTube Help on copyright claims explains; it is not a finding that your use is unfair.

YouTube Help names two routes for a creator who believes a claim is wrong: the Content ID dispute process and, in some cases, a DMCA counter notification. A counter notification is a legal step, so weigh it with the same care as the original decision to use the clip.

A dispute is easier to write when you can point to your editing choices: the time range you used, the commentary over it, and the source you credited. Keep the project file, the clip files with their time-range names and the credits files until the video is no longer online.

Claims and strikes are different events with different consequences for a channel. A claim can come from an automated match; a strike follows a legal takedown request. The difference is laid out in copyright claim vs copyright strike on YouTube.