Who Owns Your KDP Account, ISBN, and Royalties? 9 Contract Questions to Ask a Publishing Service

You've found a company that offers Amazon publishing services. The price looks fair, the website is polished, and the sales rep is friendly. Then comes the publishing contract, a dense PDF with words like assignment, publisher of record, and exclusive license.

This is the moment most authors skim. It's also the moment that decides who controls your KDP account, ISBN, book files, and royalties three years from now.

Here's the problem in plain terms. When someone helps you publish on Amazon, a few things can end up in their name instead of yours: the account the book is published under, the ISBN, the files, and sometimes the money. None of that is automatically shady. But if it's not spelled out, you may find out the hard way, usually when you switch providers or your royalties don't show up.

This guide covers what you should own, how the money normally flows, and the nine contract questions worth asking before you sign.

What Owning Your Book Actually Means on Amazon

Do I own my book? It's really four separate questions, because Amazon's system splits ownership into pieces: copyright, KDP account, ISBN, and royalties.

1. The copyright. The creative work itself. This should always be yours and remain under your control.
2. The KDP account.Your Kindle Direct Publishing account is where your book listing, sales reports, tax details, and bank information live. Whoever controls it controls the book's day-to-day operations.
3. The ISBN and book identifiers.Your paperback and hardcover use an ISBN, while Kindle ebooks get an ASIN automatically. Kindle editions don't require an ISBN, since Amazon uses its own numbering system for them. Those identifiers decide who is listed as publisher and how portable the book is.
4. The royalties.Royalties are paid to whoever's bank account is attached to the KDP account.

A trustworthy service leaves all four in your hands, or at minimum tells you clearly where any of them differ. For a closer look at a transparent book publishing setup, read how Monarch Books Co describes its Amazon publishing process.

The 9 Contract Questions to Ask Before You Sign

1. Whose KDP account will my book be published under?

A good answer: "Your own Kindle Direct Publishing account. We'll work from your login with your permission, or you'll upload the files and we'll guide you."

Walk away if:They publish everything under their own company account and promise to "pass along" your earnings. That puts your book, your reviews, sales data, and your income on someone else's platform. It also complicates things if you switch providers or a platform issue arises.

Also, never hand over your KDP password. If a provider needs access, use KDP's built-in authorization option.

You can view live listings in Amazon's Kindle book search, but make sure your own KDP account and sales dashboard remain under your control.

2. Who owns the ISBN, and whose name appears as publisher?

When you use a free KDP ISBNfor a print book, the imprint shows as "Independently published." That's perfectly workable for a single book on Amazon, but there's a catch: KDP states the free ISBN can only be used on KDP and can't be used with another publisher or self-publishing service.

If you buy your own ISBN, you pick the imprint name, and KDP checks that it matches what's on file with an ISBN agency such as Bowker. A mismatch will block publishing.

A good answer:"We can use KDP's free ISBN, or we'll register your own ISBN under your name or imprint. You'll get the registration details."

Walk away if:They say they're assigning their own ISBN and don't explain that it makes them the publisher of record. Ask them to put the answer in writing.

For a deeper look at your options, see KDP's explanation of ISBNs and imprints.

3. Where do my royalties go, and who can see my sales?

Book royalties should travel from Amazon to your bank, with no stops in between.

KDP pays monthly, roughly 60 days after the end of the month in which the sale was reported, or 90 days for Expanded Distribution, once you meet the payment threshold. So a January sale lands around the end of March. KDP also notes that PayPal and Amazon Payments aren't options, so royalties go to a bank account.

A good answer: "Your KDP royaltiesgo to your bank account. You'll see your own sales dashboard."

Walk away if:They want royalties routed to them, hide sales reports, or can't explain how you'd verify your earnings.

4. Who owns the copyright and all the files?

Your contract should say, in one clear sentence, that you keep the copyright and all rights to your manuscript. Then ask what you receive at the end of the project:

• The final manuscript
• Print-ready interior files (with the final trim size)
• Your ebook file
• Your book cover in print-ready and editable form
• Licenses for any stock images or fonts used

That last item catches people out. A cover built with a licensed image may be fine for sales but not legal to reuse on a new edition if the license wasn't transferred to you. If you want to see how a provider treats this side of the job, check how book production deliverables are described.

Walk away if:The agreement says you're granting an "exclusive license," "perpetual rights," or a right for the company to republish, adapt, or sell your work.

5. Do you take a percentage of my royalties, or lock me into a term?

Honest providers charge a clear flat publishing fee for work done. Their income comes from the project fee, not from your future sales or an ongoing royalty share.

Ask directly whether there's:

• A royalty share or "commission"
• A minimum contract length
• An auto-renewing marketing plan
• A penalty for leaving early

Also ask who makes enrollment decisions. KDP Select requires your ebook to be exclusive to Amazon for the enrollment term in return for access to Kindle Unlimited and promotion tools. That's a business choice with trade-offs, and it should be yours, with the pros and cons explained, not a default switch flipped for you.

A good answer:"Flat fee. No ongoing cut. You decide about KDP Select."

6. What exactly is included in the fee, and what costs extra?

Vague publishing packages are where hidden costs live. Ask for a written scope that lists exactly what is included, such as:

• Number of editing passes
• Interior formatting for ebook and print
• Trim size and paper choices
• Cover revisions included
• Keywords and book category research
• Listing setup and author Central profile
• Who pays for proof copies

On that last point, a proof copy is printed and shipped at Amazon's printing cost, so it's a real expense, not a freebie. For an overview of self-publishing identifiers and related costs, see ScribeCount's ISBN guide for self-published authors.

7. What happens if I want to leave or move the book?

Nobody likes planning the breakup, but this question shows how a company really thinks. Moving a book between accounts or identifiers isn't always seamless. Some ISBN guide providers note that if you publish with a free KDP ISBN and later want your own imprint listed as publisher, you may have to unpublish and republish with a new ISBN, leaving your existing reviews, sales history, and Amazon page. Ask the service how it handles this and what you can move if the relationship ends. For more background, see Author Imprints' guide to ISBNs and self-publishing.

The takeaway is simple: decide your ISBN and publisher imprintcarefully at the start. Ask the provider what their exit process looks like, who handles transfers, and how quickly.

A good answer:"You can leave anytime. We'll send all the files and explain how to move or update the listing."

8. What's guaranteed in writing, and what's only a promise?

Marketing talk is cheap, but contracts are specific. Ask for these to be written down:

• Delivery timelines for each stage
• Revision limits
• Refund terms and conditions
• What happens if deadlines are missed

Be especially careful about promises regarding sales results. Nobody can guarantee an Amazon bestseller ranking, which depends on sales velocity and category competition. If a provider offers paid reviews, treat that as a red flag: your own promotional choices need to comply with Amazon's rules. Review this KDP account health guide and check Amazon's current policies.

9. Who actually does the work, and who's responsible if KDP rejects it?

Two questions in one, because they're connected. First, who's handling your book editing, formatting, and publishingproject? A named team, an in-house group, or a rotating cast of anonymous freelancers? You're entitled to know.

Second, what happens if Amazon flags a problem? KDP can reject files for formatting errors, and accounts can be reviewed for content issues. Examples of risky behavior include using copied text or uploading public-domain content without adding meaningful original value. A reputable provider should say they'll fix errors on their end at no extra charge, and confirm they won't use plagiarism or unlicensed materials.

Author-Controlled vs. Provider-Controlled: A Quick Comparison

If you're seeing more than one item from the provider-controlled column, slow down and ask for clear answers before signing.

What Does Protecting Your Rights Cost?

The good news is that protecting your publishing rights mostly means asking questions before you sign. The main money items are small and clear:

For a project involving several formats, ask whether the service covers ISBN registrationand what's included or extra. If you're also planning a digital edition, look at how ebook publishing differs, since ebooks don't need an ISBN on KDP.