KDP Select: The Complete Operational Guide
KDP Select is Amazon's exclusivity program for ebooks. Enrolling your book gives you access to Kindle Unlimited and Amazon's KDP Select promotional tools — but it commits your ebook to 90 days of Amazon exclusivity with specific terms that have real consequences if violated. Most authors who enroll have a general understanding that they cannot put their book elsewhere; fewer have read the actual terms closely enough to know exactly what that means in practice.
This guide covers the operational mechanics of KDP Select in detail: what the exclusivity terms actually require, how Kindle Unlimited income is calculated, how to use each promotional tool correctly, how auto-renewal works, and what constitutes a violation.
What KDP Select Enrollment Actually Is
When you enroll a title in KDP Select, you are entering into a specific agreement with Amazon that covers the following:
Exclusivity of digital distribution — during the enrollment period, you may not allow the title to be sold, loaned, or given away for free by any third party in digital format
A 90-day enrollment period — the enrollment runs for 90 days from the date of enrollment
Automatic renewal — at the end of the 90-day period, enrollment renews automatically for another 90 days unless you turn off auto-renewal
Access to Kindle Unlimited — your enrolled book becomes available to Kindle Unlimited subscribers to borrow
Access to KDP Select promotional tools — Free Promotion Days and Kindle Countdown Deals become available
What the Exclusivity Term Actually Covers
The KDP Select exclusivity requirement is specifically for digital content. Understanding its exact scope prevents both violations and unnecessary restriction.
⚠ The exclusivity covers 'digital content' broadly — not just ebook file formats. If you share your full manuscript text as a webpage, as a PDF download, or in any digitally accessible form through a third party during the enrollment period, that likely violates the KDP Select terms. Amazon's enforcement is automated and reviews reports of potential violations.
Excerpt Policy
KDP Select's terms permit sharing of 'limited excerpts' of your work. Amazon does not define a specific maximum percentage, but industry standard interpretation is that standard back-of-book samples (first chapter or 10% of the work, whichever is shorter) are permissible. Sharing substantial portions — multiple chapters, 25% or more of the work — would likely be considered a violation even on your own website.
The 90-Day Enrollment Period
Each KDP Select enrollment is exactly 90 days from the date of enrollment (not from the date of publication). The enrollment start date is when you click Enroll, not when your book was published. If you enrolled on January 15, your enrollment runs through approximately April 15.
You cannot withdraw a title from KDP Select mid-enrollment period. You must wait for the current enrollment period to expire. Attempting to list the same content elsewhere before your enrollment period ends is a violation of the KDP Select terms.
⚠ Some authors attempt to go wide before their KDP Select enrollment expires, thinking the 'exclusivity' only means they cannot market elsewhere, not that they cannot list elsewhere. This is incorrect. Listing your enrolled ebook on Kobo, Apple Books, or any other platform before your KDP Select enrollment expires is a violation that can result in your book being removed from the KDP catalog and your account being placed on review.
Auto-Renewal: The Setting Most Authors Miss
KDP Select enrollment auto-renews by default. At the end of your 90-day period, unless you have turned off auto-renewal, your book is automatically enrolled for another 90 days — no notification, no confirmation required.
To check and manage auto-renewal:
From your KDP Bookshelf, find the enrolled title
Click the ellipsis (...) menu next to the title
Select Manage KDP Select Enrollment (or similar — the exact label may vary in the current KDP UI)
On the KDP Select management page, you'll see the current enrollment end date and the auto-renewal toggle
Turn off auto-renewal if you want to go wide when this enrollment period expires
Turn off auto-renewal immediately when you make the decision to eventually go wide — not when the enrollment is about to expire. A title that auto-renews commits you to another 90 days you didn't intend.
Kindle Unlimited: How Page Read Income Works
When a Kindle Unlimited subscriber reads your enrolled book, Amazon tracks the pages they read using KENP — Kindle Edition Normalized Pages. KENP is not the same as the physical page count of your book. It is a normalized unit that Amazon uses to standardize payment across books of different lengths and font sizes.
KENP Calculation
Amazon calculates your book's KENP count when you publish. The KENP count is displayed in your KDP Bookshelf for enrolled titles. A standard novel might have 250–400 KENP depending on word count and formatting. The relationship between word count and KENP is approximately 1 KENP per 187 words, but this is an approximation — Amazon's actual calculation considers normalized page size, not just word count.
The KENP Rate
Each month, Amazon sets a per-KENP rate based on the total KDP Select Global Fund (the pool of subscription revenue Amazon allocates to KU authors) divided by the total pages read across all enrolled books. The rate is not fixed — it changes every month based on how much Amazon allocates to the fund and how many pages are collectively read by KU subscribers.
The KU income model means your earnings per borrowed book depend on whether subscribers actually read your book — not just whether they borrow it. A KU subscriber who borrows your book and reads all 300 KENP generates full income. A subscriber who borrows and reads only the first 30 pages generates income for those 30 pages only.
Free Promotion Days
KDP Select gives you 5 free promotion days per 90-day enrollment period. During a Free Promotion Day, your book is listed at $0.00 on Amazon for that day. KU page reads continue to accrue during free promotion periods. Free days can be used one at a time or bundled (e.g., 5 consecutive free days to maximize the promotional window).
How to Schedule Free Promotion Days
From KDP Bookshelf, find your enrolled title and click the ellipsis (...)
Select Promote and Advertise (or Run a Price Promotion in the current interface)
Select Free Book Promotion
Choose your start date and duration (1–5 days from your remaining allocation)
Confirm the promotion — it goes into effect on the selected start date
Free promotions must be scheduled in advance — you cannot start a free promotion for the same day unless you schedule it before midnight the night before (Amazon's system needs processing time).
Effective Use of Free Days
A free promotion on its own, without promotion, typically generates few downloads. The promotional leverage comes from submitting your book to free book newsletters and promotion sites in the days leading up to your free period:
BookBub Free Deals (most competitive — apply weeks in advance)
Freebooksy (Written Word Media) — apply 2–4 weeks in advance
ManyBooks, eReader News Today, Book Gorilla, and similar newsletters
A well-promoted free day with newsletter placements can generate thousands of downloads. Downloads during free periods do not generate royalties, but they generate Kindle rank boosts, also-bought associations, and reader discovery that can increase paid sales for days or weeks after the promotion ends.
Kindle Countdown Deals
Countdown Deals are available for KDP Select titles published more than 30 days ago. A Countdown Deal sets your book at a discounted price for a limited time — with a countdown timer displayed on your Amazon product page showing how much time remains at the current discount level. The 70% royalty rate applies during Countdown Deals even if the discounted price is below $2.99.
Countdown Deal Structure
A Countdown Deal can have up to five price steps — starting at a lower price and incrementally increasing back to full price before the deal ends. For example: $0.99 for two days, then $1.99 for two days, then $2.99 for one day, then back to $3.99 full price. Each price step displays with its own countdown timer.
How to Set Up a Countdown Deal
From KDP Bookshelf, click ellipsis (...) > Promote and Advertise on your enrolled title
Select Kindle Countdown Deal
Select the marketplace (US or UK — separate deals)
Set your start date (must be at least 24 hours from now)
Set your price steps and durations
Review and submit — the deal activates at the set start time
Countdown Deals must be scheduled at least 24 hours before their start time. Like Free Promotion Days, they are most effective when coordinated with newsletter promotions. BookBub deals, Bargain Booksy, and Robin Reads are commonly used promotional partners for Countdown Deals.
KDP Select TOS Violations: What They Look Like and What Happens
Amazon's KDP Select Terms of Service are enforced through a combination of automated systems and manual review triggered by reports. Common violations and their consequences:
When Amazon identifies a potential violation, it typically sends a warning email citing the specific policy concern. It may remove the book from the KDP catalog and/or place your account on review while investigating. For authors who have inadvertently distributed an enrolled title elsewhere (forgetting to opt out of D2D auto-enrollment, for example), the fastest resolution is to proactively contact KDP support, explain the situation, and demonstrate that you have removed the duplicate distribution.
⚠ Account termination for KDP Select violations is uncommon for first-time, good-faith mistakes but does happen for repeated or egregious violations. If you receive a KDP Select violation notice, respond to it — do not ignore it. Address the specific issue cited, remove any violating distribution, and respond to Amazon's support team professionally. Amazon's enforcement is generally reasonable for genuinely inadvertent violations.
Managing KDP Select Across a Catalog
Authors who publish multiple titles often have different titles in different states — some enrolled in KDP Select, others wide. Tracking enrollment status and expiration dates across a large catalog requires deliberate management.
Create a simple spreadsheet tracking each title's KDP Select enrollment status, enrollment start date, enrollment end date, and auto-renewal status
Check auto-renewal status on every enrolled title immediately — turn it off on any title you intend to take wide when the current period expires
Note that if you publish a new title and check 'Enroll in KDP Select' during upload, auto-renewal is on by default — turn it off immediately if you are not committed to long-term KDP Select for that title
KDP Select page-read income from Kindle Unlimited appears in ScribeCount alongside your retail sale royalties, making it easy to evaluate KU income as a share of your total Amazon earnings and compare it to what you earn on wide platforms. This data is essential for making informed decisions about whether to continue enrolling titles in KDP Select or transition them to wide distribution.
KDP Select Checklist
Auto-renewal status reviewed and set intentionally for every enrolled title
Enrollment end dates noted — don't let unintended renewals lock you in for another 90 days
No enrolled ebook listed on any other ebook platform, library lending service, or subscription service
Free Promotion Days and Countdown Deal calendar planned and submitted to promotion sites in advance
KU page-read income tracked in ScribeCount to evaluate whether KDP Select is performing relative to what wide income might be
KDP Select is a valuable tool for the right author in the right circumstances — but it works best when used deliberately, with clear understanding of its terms, its promotional mechanics, and its income model. Authors who enroll by default and then wonder why they can't put their book on Kobo have not read the terms. Authors who enroll intentionally, use the promotional tools actively, track their KENP income carefully, and make a data-driven decision about each title's enrollment status are using KDP Select as the professional tool it is designed to be.
-Randall Wood