How Much Does It Cost to Self Publish a Book on KDP? $0 to Upload, $1,920–$8,930 to Do It Pro
How much does it cost to self publish a book on KDP? $0 to Amazon, $1,920–$8,930 for editing and covers, and 557–2,589 sales to break even.
Books
Kindle Unlimited All Star Bonus: Stuck at $3.4 Million Since 2024 While the Fund Grew 19%
Kindle Unlimited All Star bonus, explained: $3.4M a month since 2024, just 4.9% of KU pay. Who gets it, when it pays, and what it’s worth in page reads.
Read-Through Rate: 64% of the Readers a Series Loses Quit Before Book 2
Read-through rate benchmarks: 50–60% paid, ~86% in KU. 64% of lost series readers quit before Book 2, so a Book 1 fix pays 76% of writing Book 6.
Kindle Sales Rank Calculator: #10,000 Means 13–25 Sales a Day, #100,000 About 1–2
Kindle sales rank calculator: #10,000 is 13–25 sales a day, #100,000 is 1–2. What each rank pays at $4.99, romance shelf thresholds, portfolio math.
Amazon Book Description Generator: KDP Says 150 Words, Bestselling Romance Blurbs Average 257
Amazon book description generator tips: KDP says 150 words, but bestselling romance blurbs average 257 and 63% use third person. Data + napkin math.
Self Publishing Romance Novels on Amazon: Indie Top 100 Share Fell 71% → 44%, and Romance Still Pays Best
Self publishing romance novels on Amazon: indies fell from 71% to 44% of the Kindle romance Top 100 in 2025, yet romance still pays indies best. The data.
KENP Rate 2026: Every Month So Far, and Why September’s $0.005365 Was a 10-Year High
KENP rate 2026: every month so far, from $0.004202 in January to a 10-year-high $0.005365 in September, plus what a full KU read pays.
Permafree Book: 86% of Free Readers Never Buy Book 2, and It Still Pays ($1.49 a Download)
Permafree book math: 86% of free readers never buy Book 2, yet a free download is worth $1.49 on a 5-book series. Plus how to get Amazon to price-match $0.
KDP Paperback Royalty Calculator: One Cent Pays 3.6× More, and Every 100 Pages Costs $1.20
KDP paperback royalty calculator: 60% at $9.99+, 50% below, minus $1 + $0.012/page. A 300-page book pays $0.39 at $9.98, $1.39 at $9.99.
Best AI for Editing a Novel: Hand AI the $1,740 Pass, Keep the $960 Human Proofread
Best AI for editing a novel, by the numbers: AI takes the $1,740 structural pass, a human proofreads, and a 60k romance edit drops from $4,020 to $1,000.
KDP Passive Income Isn’t Passive: $10K-a-Month Authors Spend $4,500 a Month on Marketing
KDP passive income is real but not hands-off: $10k/month authors spend $4,500/month on marketing, and a stalled catalog halves every 18 months. The math.
Kindle Countdown vs Free Book Promotion: A Free Reader Is Worth 83% Less, and Free Still Wins 4.6× on a Series
Kindle Countdown vs free book promotion: a free reader is worth 83% less, yet free earns 4.6× more on a 5-book series. KDP rules, math, 2.2% break-even.