Guide

How much a self-published book actually makes

The royalty rate is the number everyone quotes and the least useful one. What decides whether a book earns anything is the price band you choose, the print cost if it is a paperback, and how many people ever find it.

Neubook Write · 25 September 2026 · 4 min read

The ebook arithmetic

Amazon pays two royalty rates: 70% when the list price sits between $2.99 and $9.99 and the book meets the qualifying conditions, and 35% otherwise. That cliff at $2.99 is the single most consequential number in self-publishing, and it catches people constantly.

Two cliffs, both counter-intuitive. One cent more than $2.98 doubles your royalty. One dollar more than $9.99 halves it. In the 70% band a delivery charge based on file size also comes off, which is small for text and material for a heavily illustrated book.

The paperback arithmetic is different

Print books pay 60% of list, and then the printing cost comes off that. Printing is charged as a fixed amount per copy plus an amount per page, so page count matters directly.

The shape of it: a 200-page black-and-white paperback in the US costs a little over $3 a copy to print. At a $9.99 list price you get $5.99 as your 60%, minus about $3.20 to print, leaving roughly $2.80. At $6.99 you get $4.19 minus the same $3.20, leaving about $1. Below roughly $6 the book earns nothing at all, which is why so few self-published paperbacks are cheap.

Two practical consequences. A long book is not automatically a better product, because every page costs you money on every copy sold. And a colour interior — a children's book, a workbook with illustrations — costs several times what a black-and-white one does, which is why colour picture books are priced where they are.

The number nobody wants

Self-publishing sales follow a power law. A very small number of books sell very well; the median book sells in the low tens of copies across its whole life. Any planning built on an "average" figure is averaging a distribution where the mean is meaningless.

What this means in practice is that your royalty rate is almost never the binding constraint. A book that sells 20 copies at $2.09 earns $42, and no pricing decision fixes that. The binding constraint is discovery: whether anyone with the problem your book solves ever sees it.

So what actually moves the number

• A narrow subject with an audience already attached. "Productivity" competes with everything. "Scheduling for people who run a single-chair barbershop" competes with nothing and the people who need it recognise themselves immediately.
• A cover that looks like its category. Readers browse by thumbnail. A cover that does not signal its genre in one glance loses before the title is read.
• A series rather than a book. The economics of self-publishing are the economics of a back catalogue. One book is an experiment; the fourth book makes the first three sell.
• A reason for someone to tell someone else. Almost all discovery at small scale is word of mouth, and word of mouth needs a sentence the reader can repeat.

Break-even on an AI-written book

If a tool charges you $9 once for the files, the arithmetic is simple: at $2.99 an ebook you break even on the fifth copy. At a $9.99 paperback, the third. That is a genuinely low bar, and it is the honest case for writing this way — not that the book will sell, but that being wrong about it costs very little.

What it does not buy is discovery. The book still has to find its readers, and nothing about how it was written helps with that.

Sources

• Amazon KDP royalty rates
• KDP printing cost calculator and paperback pricing
• KDP content guidelines on AI-generated content
• Self-publishing, and how the market is shaped
• Power law distributions, which is what book sales are

Common questions