Kindle Unlimited is Amazon's all-you-can-read subscription service. Readers pay around $12/month for unlimited access. Authors enrolled in KDP Select earn from a global pool, paid out per Kindle Edition Normalized Page (KENP) read.
Two questions every indie author has to answer:
- Is the KU per-page rate still high enough to justify the exclusivity it requires?
- If yes, for which kinds of books?
This post answers both with 2026 numbers.
The KU payout mechanism
When a Kindle Unlimited reader opens your book and reads it, you don't get paid per copy. You get paid per page read.
The rate per page is set monthly by Amazon, retroactively, based on the size of the global pool divided by total pages read across all KU titles in the month.
The per-page rate in 2025 floated between $0.0040 and $0.0048. The rate has been declining slowly over the last several years as the catalog grew faster than the pool.
Realistic 2026 modeling rate: $0.0044 per page.
A 350-KENP novel (about 90,000 words, depending on formatting) earns you about $1.54 per full read.
The KENP unit and why your "page count" is weird
Amazon doesn't count physical pages or word counts directly. They use Kindle Edition Normalized Pages (KENP), which is roughly:
- 1 KENP ≈ 187 words (in a typical novel format)
- 1 KENP ≈ 1 paperback page at 6x9 inches, 11pt font
Your KENP page count is generated by Amazon's algorithm based on your file's word count and formatting. You can see your KENP count in your KDP dashboard once the book is enrolled.
A few quirks:
- Larger fonts don't help you. Amazon normalizes the count.
- Image-heavy books are penalized. Picture books and graphic novels have very few KENP.
- Sparse formatting (lots of white space, chapter breaks, large paragraph spacing) doesn't inflate KENP. Same normalization.
- Tables of contents, copyright pages, dedications don't count. Only the body counts.
For most novels, your KENP is approximately word_count / 187. A 90,000-word novel is 481 KENP. A 60,000-word novella is 320 KENP.
How much a typical KU read earns
At the 2026 modeling rate of $0.0044/KENP, here's the per-full-read income:
- 60,000-word novella: ~$1.41 per full read
- 75,000-word novel: ~$1.76
- 90,000-word novel: ~$2.12
- 120,000-word novel: ~$2.82
- 180,000-word doorstop: ~$4.24
A KU full read of a 90,000-word novel pays you less than a single $4.99 purchase ($2.69 at the 70% KDP rate after delivery fees).
The trade-off is volume. KU readers are heavy readers, often 10-15 books per month. You're trading lower per-unit payout for access to a high-engagement audience.
When KU beats wide
The math favors KU in three scenarios.
You write long. A 150,000-word fantasy at $4.99 wide earns you $3.07 per copy. The same book at $5.99 wide earns you $3.77. In KU, a full read at 800 KENP pays you ~$3.52. The numbers are close enough that KU's higher volume often wins.
You write fast. Series readers are KU readers. If you publish three books a year in a series, your readers expect to find the whole series in KU. The marketing engine on KU (Amazon's recommendation algorithm) heavily favors authors with multiple books in the program. Single-book authors don't get the same algorithmic boost.
You write in romance, romantasy, LitRPG, urban fantasy, or PNR. These genres are KU-saturated. Readers in these genres mostly read inside KU. Wide-distribution income in these genres is significantly lower than KU income for the same audience reach.
When wide beats KU
You write literary fiction, upmarket women's fiction, or literary thriller. These genres are not KU-heavy. Your readers buy ebooks at higher price points ($9.99 to $14.99) and don't subscribe to KU as much. KU's price-band requirement (70% royalty only on $2.99-$9.99) caps your per-copy royalty in genres that could command higher prices.
Your audience has Apple, Kobo, or library readers. Library users (via OverDrive) cannot access KU. Apple Books readers usually buy from Apple. These audiences are inaccessible to KU-exclusive authors.
You sell direct from your own site. Direct sales pay 95%+ of revenue (minus payment processing). Direct sales aren't possible if you're KU-exclusive.
Your book is non-fiction. Non-fiction skews wide. The KU audience is heavily fiction.
The hidden exclusivity cost
The biggest non-financial cost of KU is psychological. You can't be on Apple, Kobo, B&N Press, Google Play, or your own site. You can't run library promos. You can't experiment with direct sales. You're handing your distribution to one company.
A 2022 antitrust investigation against Amazon's book business showed regulators noticed the exclusivity dynamic; it didn't lead to enforcement, but the precedent makes some authors uncomfortable trusting Amazon as a single channel for a multi-decade career.
The exclusivity also locks your historical KU enrollees. If you decide to go wide after three years, you have to delist from KU first, wait out the enrollment period, then re-list elsewhere. Re-acquiring your wide audience takes 6 to 18 months.
The KU bonus pool (All-Star bonuses)
Amazon also pays "All-Star bonuses" to the top 100 KU authors monthly, with bonuses ranging from $1,000 to $25,000 per author per month. The top of the bonus list is dominated by long-form series writers in romance, romantasy, and urban fantasy.
You will not get an All-Star bonus on your first book. Plan as if these don't exist; they're a top-1% phenomenon.
The "borrows" question
A KU "borrow" used to be the unit Amazon paid on (pre-2015). They switched to KENP-per-page in July 2015 because pamphlet-length books were gaming the system. The per-borrow rate before 2015 was around $1.40 per borrow regardless of length.
Some indie communities still talk about "borrows" colloquially. Pretend they're saying "page reads" and the math works out.
A working KU income model
A reasonable assumption stack for an indie author with three published books in KU, in romance or romantasy:
- Book 1: 600 full reads/month (older title, still circulating). ~$1,272/month.
- Book 2: 1,200 full reads/month (mid-list, still gaining). ~$2,544/month.
- Book 3: 2,000 full reads/month (recent release, in the algorithm's favor). ~$4,240/month.
Total: ~$8,056/month, or ~$97,000/year. (Assumes 90,000-word books and $0.0044/page.)
These numbers are realistic for a working indie romantasy or romance author with three books out and a small marketing budget. Top-tier indies in these genres do 3-5x this. New authors with one book typically do 10-25% of this.
The pattern: KU is a volume game, and the volume rewards a backlist. A single-book author should not optimize for KU. A three-book-plus author in KU-heavy genres often should.
Wide distribution income for comparison
The same three books, same audience size, distributed wide instead of KU-exclusive:
- KDP wide: 35% of Amazon market share. ~$3,500/month gross on Amazon at $4.99 list with 70% royalty.
- Apple Books: 15% of market. ~$1,500/month.
- Kobo: 10% of market. ~$1,000/month.
- B&N + Google Play + others: 8% of market. ~$800/month.
- Library (OverDrive): 7% of market. ~$700/month (lower per-copy but steady).
Total wide: ~$7,500/month, or ~$90,000/year.
The numbers are close. KU wins on raw volume in this scenario; wide wins on diversification and direct-sales upside. Pick by which you'll sleep better with.
Be skeptical of KU income screenshots on Twitter/X. The full-read counts shown are often hand-picked best months. The KU-bonus screenshots are top-1% authors. Your reality is more likely the middle of the distribution. Plan accordingly.
How the per-page rate has trended
| Year | KU per-page rate (range) |
|---|---|
| 2018 | $0.0043 to $0.0048 |
| 2019 | $0.0044 to $0.0049 |
| 2020 | $0.0042 to $0.0048 |
| 2021 | $0.0042 to $0.0046 |
| 2022 | $0.0041 to $0.0045 |
| 2023 | $0.0040 to $0.0044 |
| 2024 | $0.0040 to $0.0046 |
| 2025 | $0.0040 to $0.0048 |
| 2026 | $0.0042 to $0.0048 (so far) |
The rate is roughly flat to slowly declining. Amazon scales the pool, but the catalog grows faster, so the per-page rate doesn't grow with the platform.
This is the same dynamic that played out on Spotify. See Why Early Spotify Artists Didn't Get Rich for the structural analysis.
The decision tree
Ask yourself:
- Do you write in a KU-heavy genre (romance, romantasy, LitRPG, urban fantasy, PNR)? If yes, KU is on the table. If no, consider wide.
- Do you have three or more books out, or a plan to publish three within 18 months? If yes, KU's algorithmic advantage compounds. If no, KU's single-book lift is mediocre.
- Do you want to sell to libraries, Apple readers, or direct-from-site customers? If yes, wide. If you don't care, KU.
- Are you comfortable trusting one platform with your distribution? If yes, KU is fine. If no, go wide.
A reasonable hybrid: launch in KU for 90 days to leverage the algorithmic boost on a new release. Track KU income. If the book is doing well, renew. If KU is mediocre, exit at the end of the 90-day period and go wide.
Where Inkett fits
Inkett is the writing stack for working novelists. The Editor and Co-Writer help you ship books faster, which is the single biggest variable in indie author income regardless of which platform you choose. The Publisher is a reader-subscription marketplace that pays 50% to 85% of pool revenue to writers, with no exclusivity requirement, so you can run a book on KU and Inkett simultaneously if you want.
Worth pairing with: KDP Alternatives for Indie Authors in 2026, Publishing Royalties Explained, and How Much Do Novelists Actually Make in 2026? for the full income picture.
KU is a real income channel. It's not the only one. Run the math on your specific book before you opt in.
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