The paperwork: account, taxes, and copyright

The account, in one sitting

Setting up a KDP account is an afternoon, not a project. Sign up at the KDP site with a normal Amazon account or a new one, then complete your account information: legal name and address, bank details for royalty deposits, and the tax interview. The dashboard changes its look periodically, but the required information has been stable for years.

Two setup decisions deserve care beyond the forms.

Real name or pen name? Set up the account in your real name. Pen names go on the books, in the author field at publish time; the account itself should match the human who pays taxes on the royalties. Publishers run whole catalogs under pen names on a single real-named account, which is normal and allowed.

Business or personal? Plenty of publishers operate for years as sole proprietors, which is the default: royalties flow to your personal return. Forming an LLC is a separate decision about liability and banking that depends on your state and your other assets, and it is worth a conversation with an accountant once real money is moving, not before. Nothing in setting up KDP requires it.

Taxes, without fear

For US-based publishers, the short version: royalties from KDP are self-employment income. Amazon issues a tax form, a 1099, once your royalties in a year pass ten dollars, which tells you how low the bar is (Keeper Tax on KDP taxes). You report income and expenses on Schedule C, and if net earnings pass four hundred dollars for the year, self-employment tax applies at 15.3% on top of income tax (TurboTax self-publishing tax overview).

The part people miss is that expenses offset income. Editing, covers, ads, software, a portion of your home internet used for the work: those are ordinary and necessary business expenses, and in year one they often exceed revenue, which has tax consequences you should hear from your accountant, not from a course. If your royalty flow becomes real, quarterly estimated payments enter the picture. A one-time session with a tax preparer who has seen a Schedule C before costs less than one month of getting this wrong.

Publishers outside the US complete the same tax interview; depending on your country's tax treaty with the United States, the interview can reduce or eliminate US withholding, and the KDP tax interview walkthrough in your account handles the claim. This course is US-tax-framed; if you publish from elsewhere, treat the interview as mandatory and verify your country's rules.

Copyright: automatic, registerable, optional

In the United States, you hold copyright in your book the moment you write it. Registration with the Copyright Office is optional, costs roughly forty-five dollars for a single work as commonly filed, and buys you the ability to sue for statutory damages in an infringement case. A proposed 2026 fee schedule would raise that number, so check the Copyright Office's current fee page before you file. Most publishers of niche nonfiction and low-content books never register; novelists and authors with meaningful revenue more often do. It is insurance, not a license: nothing about publishing on KDP requires it.

What actually protects you day to day is the platform's takedown process, and the thing to understand is that it cuts both ways. If someone copies your book, you file a complaint and Amazon removes theirs; if a complaint, valid or mistaken, lands on yours, Amazon blocks your book and writes to you. Respond to every notice immediately and politely, in writing, with evidence. That habit is most of the defense; the failure patterns that end accounts come later in the course.

ISBNs: the free one, and when to buy

An ISBN is the catalog number identifying a print book in the publishing industry's supply chain. KDP gives nonfiction and fiction paperbacks a free ISBN at publish time. It is a real ISBN, with two catches: the publisher of record reads as independently published through KDP, and that ISBN only works on Amazon's channel (KDP on ISBNs and imprints). Ebooks don't need one at all; Kindle uses Amazon's own identifier.

You buy your own ISBNs, from Bowker's identifier service in the US, when you want to publish the same print book beyond Amazon, through IngramSpark's distribution into bookstores and libraries. A single ISBN costs one hundred twenty-five dollars and a block of ten runs two hundred ninety-five, at Bowker's own listed prices. A sensible default for your first books: take the free ISBN, sell on Amazon, and buy your own only when you have a book that deserves a wider channel. Low-content books are the exception with no choice: since 2022 they get no free ISBN and no expanded distribution at all (KDP on low-content books).

With the account live and the paperwork settled, the machine is built. What it needs now is customers, and on KDP your first customers are readers willing to leave reviews. Finding them without breaking the rules that protect the whole account is its own discipline, and it comes later in the course.