Guide
Kindle Unlimited or wide? How to decide
KDP Select trades ninety days of exclusivity for access to Kindle Unlimited readers. For some genres that is the best deal in publishing. For others it is giving away every other shop in exchange for almost nothing.
Short answer
KDP Select requires ninety days of Amazon exclusivity on the digital edition and in return pays you per page read by Kindle Unlimited subscribers, at roughly $0.0042 to $0.0050 a page in 2026. A 300-page novel read in full earns about $1.30 to $1.50, against about $2.09 for a $2.99 sale. Select wins for binge-read fiction, loses for non-fiction and for anyone with their own audience.
What you are actually trading
KDP Select asks for one thing: the digital edition of that book is sold nowhere else for ninety days. Not Apple Books, not Kobo, not Gumroad, not a PDF on your own website. The paperback is unaffected and you can enrol some books and not others.
In exchange you get three things, of which only the first really matters:
- Kindle Unlimited. Subscribers read your book at no extra cost and you are paid per page read out of a monthly fund.
- Countdown deals and free days, promotional tools that are useful mostly at launch.
- 70% royalty in a few territories where you would otherwise get 35%, including India, Brazil and Japan. This is a genuine and often overlooked benefit.
The arithmetic of a page read
Amazon normalises every book to a standard page size (KENP) and divides a monthly fund by the total pages read across all of Kindle Unlimited. The rate therefore changes every month and is announced afterwards. Through 2026 it has sat between about $0.0042 and $0.0050.
| Book | Read in full via KU | Bought at $2.99 | Bought at $4.99 |
|---|---|---|---|
| Short guide, 100 KENP | ≈ $0.48 | $2.09 | $3.49 |
| Novel, 300 KENP | ≈ $1.44 | $2.09 | $3.49 |
| Long novel, 500 KENP | ≈ $2.40 | $2.09 | $3.49 |
Two things fall out of that table immediately.
Long books do better in Kindle Unlimited. A 500-page novel read in full beats a $2.99 sale. A 100-page guide earns a quarter of one. This is why KU fiction trends long and why padding is a rational, if depressing, strategy there.
Nobody finishes everything. The table assumes a cover-to-cover read. In practice a good chunk of KU borrows are abandoned early, so the realistic figure is well below the number in that column — which makes the opening chapters matter more in Select than anywhere else.
Who should say yes
- Genre fiction with a series behind it. Romance, cosy mystery, urban fantasy, LitRPG. Kindle Unlimited readers in these categories consume enormously and move through a series in days. Volume more than makes up for the rate.
- Long books. The arithmetic above rewards them directly.
- A first book with no audience at all. KU lowers the barrier to starting your book from "buy it" to "tap it", and being read is how reviews and rankings happen.
Who should say no
- Non-fiction. Readers buy a practical guide because they have a problem now. They do not browse it on a subscription, they will pay full price, and you are giving away every other shop for readers who were never going to come.
- Anyone with their own audience. If you can sell directly to a list at 5% fees and keep the customer, exclusivity costs you the most valuable channel you have.
- Books in languages where KU is thin. Kindle Unlimited subscriptions are concentrated in a handful of markets. In much of the world the subscriber base is small enough that exclusivity buys almost nothing.
- Anything bought by institutions. Libraries and schools buy through Kobo, OverDrive and others. Exclusivity locks that out entirely.
A reasonable default
If you write series fiction, enrol and stay. If you write non-fiction, go wide from day one. If you are unsure, run ninety days in Select for the launch, watch the split between page reads and sales in your reports, and decide with your own numbers rather than anyone else's.
And check the auto-renew setting either way. The most common complaint about Select is from people who did not realise it had rolled over into another ninety days.
Neubook gives you EPUB, print-ready PDF, DOCX and Markdown at once, so the same book can go exclusive on Amazon now and wide in ninety days without being remade.
Write a book, freeSources
- KDP Select terms and the exclusivity requirement
- How Kindle Unlimited pays authors (KENP)
- Amazon KDP royalty rates
- Kindle Unlimited
- Gumroad pricing
- Payhip pricing
Common questions
What does KDP Select require?
Ninety days of exclusivity for the digital edition of that book. You cannot sell the same ebook on Apple Books, Kobo, Gumroad, Payhip or your own site during the term, and it renews automatically unless you turn it off. Print editions are unaffected.
How much does Kindle Unlimited pay per page?
It varies month to month with the size of the global fund. Through 2026 it has run between roughly $0.0042 and $0.0050 per normalised page, around $0.0048 in the middle of the year. Amazon publishes the rate after each month closes, so you never know it in advance.
Is a page read worth more or less than a sale?
Less, per reader, in almost every case. A 300-page novel read cover to cover earns about $1.30 to $1.50, while a $2.99 sale earns about $2.09 and a $4.99 sale about $3.49. Select wins on volume, not on rate: far more people will start a free book than buy one.
Which books should go wide?
Non-fiction, anything aimed at a professional audience, anything you sell to your own list, and any book in a language where Kindle Unlimited has few subscribers. These earn more from a smaller number of full-price sales than from page reads.
Can I leave Select later?
Yes. Turn off auto-renew and the term ends after ninety days, then you can publish anywhere. Many authors run the first ninety days in Select for the launch visibility and go wide afterwards.