Royalties, KENP, and How You Earn
Amazon offers two primary ebook royalty rates depending on your book’s price and eligibility requirements:
- 70% royalty: Available for ebooks priced between $2.99 and $9.99 and at least 20% below the list price for hardcover and paperback editions. Delivery fees are deducted based on file size (typically $0.15/MB for sales in the US), and public domain works typically do not qualify.
- 35% royalty: Applies to ebooks priced below $2.99 or above $9.99. No delivery fees apply, and books may include public-domain content.
Authors enrolled in KDP Select can also earn KENP royalties when Kindle Unlimited subscribers read their books. These earnings fluctuate monthly because the payout depends on Amazon’s KDP Select Global Fund.
For authors with longer books or binge-worthy series, the royalties earned through Kindle Unlimited page reads can become a significant source of income in addition to direct sales.
Wide publishing does not include Kindle Unlimited income, but it allows authors to earn royalties from multiple retailers rather than relying on a single platform. Authors who publish wide can still sell their books through Amazon’s standard KDP platform as well. They simply do not receive the additional benefits offered by KDP Select.
For fiction authors in genres such as romance, fantasy, science fiction, and mystery, participation in Kindle Unlimited can be extremely lucrative, as readers often consume multiple books per month.
Best for increased earnings on popular fiction: KDP Select
Distribution and the Ebook Market
While royalties determine how you earn money, distribution determines where readers can actually find your book.
KDP Select offers deep access to Amazon’s marketplace, but limits where your ebook can be sold. While enrolled, your book cannot be sold through Barnes & Noble Press, Apple Books, Kobo Writing Life, Google Play Books, or most library platforms. You also cannot sell digital copies of your book through your own website.
Wide publishing removes those restrictions and makes your ebook available to readers wherever they prefer to shop. This broader availability can help authors reach international audiences, library systems, and readers who prefer platforms other than Amazon. This also creates a safeguard called “distribution resilience,” meaning your book can still reach readers even if a particular platform is unavailable.
Keep in mind that KDP Select exclusivity applies only to ebooks. Even if your ebook is enrolled in the program, you may still publish paperback and hardcover editions through Barnes & Noble Press, IngramSpark, or other print distributors.
Best for distribution resilience: Wide publishing
Marketing Tools and Discoverability
One of KDP Select’s biggest advantages for self-published authors is access to promotional tools that aren’t available to authors who publish widely.
Kindle Countdown Deals allow authors to temporarily discount their ebooks while maintaining eligibility for the higher 70% royalty rate. Free Book Promotions let you offer your ebook at no cost for up to five days during each 90-day enrollment period. These promotions can help generate downloads, reviews, and increased visibility.
Kindle Unlimited also contributes to Amazon’s recommendation system. As readers borrow and read through your book, Amazon may recommend it to similar readers, improving its visibility in search results and recommendation carousels.
Authors who publish widely rely more heavily on retailer-specific promotions, email newsletters, advertising, social media, and direct relationships with readers. While these strategies require more effort and coordination, they reduce dependence on Amazon’s algorithm and create more opportunities to build a long-term audience across multiple platforms.
Best for promotional tools and short-term discoverability: KDP Select
Pricing Flexibility and Promotion Control
When going wide, authors have the ability to set their own pricing schedule and promotions
Because your ebook is available through multiple retailers, you can experiment with different price points, participate in retailer-specific sales, and adjust pricing based on individual markets. This flexibility allows authors to test promotional strategies and determine what resonates most with their audience.
KDP Select also offers promotional opportunities through Free Book Promotions and Kindle Countdown Deals, both of which allow authors to discount their books for a limited time.
While these tools can be highly effective, they don’t offer the same level of pricing freedom as distributing your ebook across multiple retailers. KDP Select authors can only run one promotion per 90-day period. Free Book Promotions are allowed for a total of five days, while Kindle Countdown Deals can be used for just one week. Kindle Countdown Deals also require that the book price be reduced by at least $1.00, not go below $0.99, and maintain a list price of $2.99-$24.99 for at least 30 days prior.
These limitations can make it challenging to run a fully flexible promotional strategy or to experiment with pricing for new authors.
Best for pricing flexibility and experimentation: Wide publishing
First Book Launch Strategy
For many first-time self-published authors, KDP Select provides the easiest path to gaining visibility.
New authors benefit from Kindle Unlimited readers, Amazon’s recommendation engine, and KDP Select’s built-in promotional tools. Together, these can help a new book reach readers more quickly than launching across multiple retailers with no existing audience.
Rather than trying to master every storefront at once, consider focusing your first launch on KDP Select. During your initial 90-day enrollment period, track your ebook sales, Kindle Unlimited page reads, reviews, and overall marketing results. That information will give you a much clearer picture of whether remaining exclusive or expanding to other retailers makes sense for future releases.
Testing one book in KDP Select allows you to make decisions based on real performance rather than assumptions, helping to guide your full distribution strategy.
Best for a first book launch: KDP Select