Publishing on KDP costs nothing, so the question is not whether you can afford to try. It is whether the book will earn back what you put into it — money for editing, a cover and ads, and a great deal of time. That is a sum you can work out before you start.
What one sale earns
| Book | Price | You earn per sale |
|---|---|---|
| eBook, 70% plan | $4.99 | about $3.34 |
| eBook, 70% plan | $9.99 | about $6.84 |
| Paperback, 300 pages, 6 × 9 | $14.99 | about $4.39 |
| Coloring book, 100 pages, 8.5 × 11 | $9.99 | about $3.15 |
eBooks assume a 1 MB file ($0.15 delivery fee). Paperbacks use KDP’s US printing costs and the 60% rate at $9.99 or more. Work out your own.
How many sales to pay back your costs
what you spent ÷ what you earn per sale
| You spent | At $3.34 a sale | At $6.84 a sale |
|---|---|---|
| $300 (a cover) | 90 sales | 44 sales |
| $1,000 (cover and editing) | 300 sales | 147 sales |
| $2,500 (cover, editing, launch ads) | 749 sales | 366 sales |
The spending levels are examples, not quotes; use your own.
That is the honest core of it. KDP pays a high royalty per copy compared with a traditional contract, but there is no advance and the marketing is entirely yours. Whether it is worth it depends on how many copies you can realistically sell, and that depends far more on the book and the market than on KDP.
Who tends to do well
- Authors who write in series. One reader can buy five books, so the cost of finding them is spread across five sales.
- Authors who publish more than once. A backlist sells itself a little; each new book lifts the older ones.
- Books aimed at a clear, searched-for readership. A genre or a problem people type into Amazon.
- Authors who treat ads as maths. Ads pay when ACOS stays below break-even, and lose money quietly when nobody checks.
Who is usually disappointed
- One book, no plan to promote it, and an expectation of passive income.
- Low-priced books in crowded niches, where the royalty is too small to pay for any advertising. The $9.99 line.
- Authors who run ads without knowing their break-even, and stop when the bills arrive.
Kindle Unlimited changes the sums
If your eBook is in KDP Select, readers can borrow it through Kindle Unlimited and you are paid per page read from a monthly fund — $69.4 million for August 2026. For many genres page reads are a large share of income, and they never show up in ACOS. How page reads work.
Common questions
Is Amazon KDP worth it in 2026?
It is free to publish, and it pays a high royalty per copy — up to 70% on eBooks priced $2.99–$12.99 and 60% on print books at $9.99 or more, minus printing. Whether it is worth it depends on whether you can sell enough copies to repay what you spend on editing, covers and ads.
Can you make money on KDP?
Yes, but it is not automatic. Authors who write in series, publish regularly, target readers who search for their kind of book, and keep ads below break-even are the ones who usually do.
How much do KDP authors make?
There are no official figures, and the range is enormous. Work it out per book instead: royalty per sale times realistic sales, minus what you spend. The royalty calculator gives the first number.
Is KDP free to use?
Yes. Publishing costs nothing; printing costs for paperbacks and hardcovers are taken out of each sale rather than charged up front.
Is self-publishing on Amazon better than traditional publishing?
It pays more per copy and you keep control and rights, but there is no advance, no bookshop placement by default, and all the marketing — including ads — is your job.
- Publishing on KDP is free; the real costs are editing, covers, ads and time.
- Sales to break even = what you spent ÷ what you earn per sale.
- Series, a growing backlist and a searched-for readership are what usually make KDP pay.
- Low prices in crowded niches often leave too little royalty to advertise.
- Kindle Unlimited page reads can be a large, ACOS-invisible share of income.