Can you copyright a book written with AI? What you need to know in Canada and the U.S.

Most people who use AI to write a book worry about getting caught. The more expensive problem runs the other way. You publish, a competitor lifts your illustrations or whole chapters for their own edition, and you discover there may be nothing to sue on — because the parts they took were never yours in law.

That is a live question for a lot of writers. A BookBub survey of more than 1,200 authors published in 2025 found that about 45% were already using generative AI in their work, most often for research, marketing copy and outlining. Children’s books, colouring books and illustrated non-fiction lean hardest on AI images.

Can I copyright a book written by ChatGPT or another AI tool?

Not the parts the AI wrote. Copyright protects original expression by an author, and both countries treat an author as a person. What you can own is everything a human contributed: the text you wrote, the edits that changed the AI’s wording in a creative way, and the selection and arrangement of the whole book.

The clearest illustration is a comic book called Zarya of the Dawn. Its author, Kristina Kashtanova, wrote the story and generated the images with Midjourney. In February 2023 the U.S. Copyright Office cancelled her original registration and replaced it with a narrower one covering only the text and the selection, coordination and arrangement of text and images. The Midjourney images themselves were excluded.

That is the template for most AI-assisted books today. The words you wrote are protected. The book as a compilation is protected. An individual AI image, lifted out and used on its own, probably is not. (Copyright also does nothing to stop an AI imitating your face, voice or style — a separate problem, covered in our article on copyrighting your persona.)

What the U.S. Copyright Office requires

The Office has said the same thing in three formats. Its registration guidance of March 16, 2023 requires applicants to disclose AI-generated material that is more than de minimis, to describe the human contribution, and to exclude the AI material in the “Limitation of Claim” part of the application. On January 29, 2025 it released Part 2 of its Copyright and Artificial Intelligence report, which concluded that, with current technology, prompts alone do not give a user enough control over the expressive elements to make that user the author of the output — however detailed the prompt.

The report leaves three doors open. If you feed in your own expressive work (your drawing, your draft chapter) and it is perceptible in the output, you own that portion. If you modify AI output enough that the changes are themselves original, you own the changes. And if you creatively select and arrange AI material, you own the arrangement.

The courts have backed the Office. In Thaler v. Perlmutter, 130 F.4th 1039 (D.C. Cir. 2025), the court held that the Copyright Act requires a human author for an image Dr. Stephen Thaler said his AI system created autonomously. On March 2, 2026 the U.S. Supreme Court denied certiorari, which left that ruling in place. The harder question — how much human involvement is enough — is now before the federal court in Colorado in Allen v. Perlmutter, where the artist Jason Allen says the more than 600 prompts he used to produce a Midjourney image that won the 2022 Colorado State Fair art competition should count. The Copyright Office offered to register his Photoshop edits if he disclaimed the Midjourney output. He declined, and sued.

Is AI-generated content protected by copyright in Canada?

Canada is less settled and, on paper, looser. The Copyright Act never defines “author,” and the Canadian Intellectual Property Office does not examine copyright applications. That is how an AI app called RAGHAV came to be listed in 2021 as co-author of an image called SURYAST, alongside the New Delhi lawyer Ankit Sahni — one of the first registrations anywhere to name an AI as an author.

The test that will decide it comes from the Supreme Court of Canada in CCH Canadian Ltd. v. Law Society of Upper Canada, 2004 SCC 13: an original work must come from an exercise of skill and judgment that is more than a purely mechanical exercise. The Canadian case law has always assumed that the skill and judgment belong to a person. A University of Ottawa clinic is now testing the point in CIPPIC v. Sahni, Federal Court file T-1717-24. The clinic wants the court to strike the AI from the SURYAST registration or expunge it entirely. As of this writing the parties are waiting for a hearing date.

The federal government consulted on exactly this question between October 2023 and January 2024. Its February 2025 “What We Heard” report records broad support for keeping human authorship central to copyright and for protecting AI-generated content only where there is sufficient human contribution. No amendment has followed.

My practical read: assume a Canadian court will apply the same human-authorship line as the U.S., and plan your book on that basis. A Canadian registration that names an AI, or claims purely generated images, is likely to be worth less than its certificate suggests.

Canada and the U.S. compared

How do I protect a book I wrote with AI help?

Five steps do most of the work, and none of them is expensive.

1. Keep the words yours. Use AI for research, outlining, brainstorming, or checking your grammar, and write the text yourself. Of everything in this article, that is the step that most decides whether a court will recognise you as the author. If the AI drafts, rewrite substantially rather than tidy.

2. Keep a record. Save your drafts, your prompts, your rejected outputs and your edit history. If your authorship is ever challenged, that record is your evidence, and it is the thing Jason Allen’s case turns on. Bear in mind that a manuscript pasted into a consumer AI tool may be retained by the provider — the same confidentiality risk that applies to contracts applies to unpublished books.

3. Get the ownership chain in writing. In Canada the author owns copyright first, unless the work was made in the course of employment. If you publish through a company, have each human contributor — you, a co-writer, an illustrator, a family member who edited — sign a short assignment to the company and a waiver of moral rights — the same chain-of-title discipline set out in our guide to protecting IP when you hire contractors. A pen name changes nothing about who owns the work. Check the AI tool’s terms too: most of the major tools assign to the user whatever rights exist in the output, but a tool cannot assign rights that the law does not recognise.

4. Register, and disclose honestly. Registering in the U.S. matters because a court will not award statutory damages or attorney’s fees for infringement that began before registration, unless you register within three months of publication. Disclose and disclaim the AI-generated material; a registration that hides it can be cancelled or found invalid at the moment you try to enforce it. In Canada, registration is quick and the certificate is useful evidence, but it does not cure a work that lacks human authorship.

5. Describe the book accurately. On the copyright page, name the human owner (“© 2026 [your name or company]”) and credit the illustrations truthfully — something like “Illustrations created with the assistance of artificial intelligence, under the creative direction of [name].” Do not call AI images hand-drawn.

Do I have to disclose AI use on Amazon KDP?

Yes, if the content is AI-generated. Since September 2023 Amazon’s Kindle Direct Publishing content guidelines have required you to tell Amazon when a book contains AI-generated text, images or translations — cover and interior art included — each time you publish or republish. Amazon separates that from “AI-assisted” content — work you created yourself and used AI to edit, refine or brainstorm — which you do not have to disclose. Readers do not see your answer. Getting it wrong is a breach of the KDP terms, and a title can be taken down.

The same record of your process that supports a Copyright Office application answers Amazon’s questions too.

Can my AI-written book infringe someone else’s copyright?

It can, and the risk sits with you, not the tool. If an output reproduces a substantial part of a protected work — a recognisable character, a passage from a novel, a distinctive illustration style that copies a specific image — publishing it is an infringement whatever produced it. The AI providers’ terms generally put that risk on the user. Run anything that looks familiar past a reverse image search or a plagiarism checker before it goes to print, and do not prompt for named characters, artists or living authors.

Publishing contracts add a second layer. Most trade-publishing agreements require you to warrant that the work is original and that you own it. If a material part of the manuscript is AI-generated and you have not told your publisher, that warranty may already be false the day you sign. Read the clause, and negotiate AI-specific wording if your process uses AI; it is ordinary technology and IP licensing work, and far cheaper before signing than after. If you drafted the contract itself with ChatGPT, see whether an AI-drafted contract is binding in Canada.

What this means if you publish through a company

Many authors publish through a corporation or a business name for tax and liability reasons. The company can own the copyright, but only by assignment from the people who created the work, or because they created it as employees in the course of their work. A business name registered in Ontario is not a separate legal person; the corporation behind it is the owner, and its legal name has to appear on contracts and invoices. On U.S. tax forms, the corporation — not the business name — is the beneficial owner of the royalties.

None of this requires abandoning the tools. It requires being the author, and being able to prove it. A book that a person wrote and an AI helped illustrate is protectable in both countries. A book that an AI wrote and a person uploaded is, on current law, mostly a gift to anyone who wants to copy it.