KDP Select is an optional programme for Kindle eBooks. In exchange for selling the eBook only through Amazon, you get it into Kindle Unlimited, where readers borrow it and you are paid per page read, plus two promotion tools. Whether that trade is worth it depends mostly on your genre and on where else your readers buy.
What you get, and what you give
| You get | You give |
|---|---|
| Kindle Unlimited: borrows paid per page read (KENP) from the monthly KDP Select Global Fund | Exclusivity: the eBook cannot be sold or given away digitally anywhere else while enrolled |
| Promotion tools: in each 90-day period, either a Kindle Countdown Deal or up to five free-book days | A 90-day commitment, which renews automatically unless you opt out |
| The 70% royalty in Japan, India, Brazil and Mexico, which requires Select | Dependence on one retailer for the eBook |
Only the digital edition is exclusive. Your paperback, hardcover and audiobook can be sold anywhere.
How Kindle Unlimited pays
Each month Amazon sets the size of the KDP Select Global Fund — $69.4 million for August 2026 — and divides it by the total pages read across the programme. Your share is your pages read times that per-page rate, which is announced around the 15th of the following month. A reader counts for at most 3,000 pages per book.
Pros
- A second income stream from the same readers: borrowers who would never have bought.
- Discovery: Kindle Unlimited readers try new authors freely, because each extra book costs them nothing.
- Promotions: free days or a Countdown Deal can bring a burst of readers and reviews for a launch or a series.
Cons
- No other eBook stores: Apple Books, Kobo, Google Play, library platforms and your own website are off-limits for the eBook while enrolled.
- A rate you do not control: the per-page rate changes every month.
- All your eBook income depends on one company’s decisions.
How to decide
Look at where readers in your genre read. Genres whose readers devour many books a month — romance, thrillers, fantasy and other series fiction — are widely reported to do well in Kindle Unlimited. Non-fiction, literary fiction and authors with strong sales on other stores often do better selling “wide”. Enrolment is for 90 days, so you can test it and compare.
What Select does to your ads
Page reads never appear in ACOS, because a borrow is not a sale. A book in Kindle Unlimited can therefore look unprofitable in the ads console while page reads quietly pay for the clicks. Judge Select books on sale royalties plus page-read royalties, minus ad spend.
GuideKENP and Amazon Ads: the Page Reads Your ACOS Leaves OutThe worked example: an 84% ACOS that actually made money.Common questions
What is KDP Select?
An optional programme for Kindle eBooks: in return for 90 days of eBook exclusivity to Amazon, your book joins Kindle Unlimited, where you are paid per page read, and in each term you can run either a Kindle Countdown Deal or up to five free-book days.
Is KDP Select worth it?
Often, for genre fiction in series, where Kindle Unlimited readers borrow heavily. Less often for non-fiction or authors with strong sales on Apple, Kobo or Google. Enrol for one 90-day term and compare.
Can I sell my paperback elsewhere if I am in KDP Select?
Yes. Exclusivity applies only to the digital edition. Print and audio editions can be sold anywhere.
How much does KDP Select pay per page?
The rate changes monthly and is set around the 15th of the following month from the KDP Select Global Fund. It is a fraction of a cent per page; your KDP reports show each month’s rate.
Does KDP Select renew automatically?
Yes. Each 90-day term renews automatically unless you opt out before it ends.
- KDP Select trades eBook exclusivity for Kindle Unlimited page reads and promotion tools.
- Terms are 90 days; only the eBook is exclusive, print can be sold anywhere.
- Page reads are paid from a monthly fund at a rate that changes each month.
- Genre series fiction usually benefits most; test one term and compare.
- Page reads are invisible to ACOS — judge Select books on total royalties minus ad spend.