Quick answer: For a Kindle ebook priced between $2.99 and $9.99, Amazon KDP pays a 70% royalty minus a small delivery fee based on file size; outside that price band, or below $2.99, royalty drops to 35%. For paperbacks, royalty is 60% of list price minus printing cost, which depends on page count and trim size. A $4.99 ebook with a small delivery fee typically nets around $3.35 per sale, while a $12.99 paperback with a $3.50 print cost nets roughly $4.29. Use the calculator below for your own numbers.
Why KDP Royalties Aren’t a Flat Percentage
Self-published authors often assume Kindle Direct Publishing pays a simple, flat royalty rate. In reality, Amazon runs two entirely different formulas depending on format, price, and even file size. Ebooks are governed by a price-band rule: price your book between $2.99 and $9.99 and you qualify for the 70% royalty tier; price it outside that range (say, $0.99 or $14.99) and you’re automatically bumped down to 35%, no exceptions. On top of the 70% tier, Amazon subtracts a small “delivery fee” based on your file’s size in megabytes, which mostly affects books with lots of images.
Paperbacks and hardcovers work completely differently. Instead of a price-band rule, KDP Print pays 60% of your list price for paperbacks (or a separate hardcover rate) minus a fixed printing cost that’s calculated from page count, trim size, and ink type (black and white versus color). A longer book costs more to print, which eats directly into your royalty per copy – meaning a longer paperback isn’t automatically more profitable just because it can be priced higher.
KDP Royalty Calculator
The Formula Behind the Numbers
Ebook royalty: If price is $2.99-$9.99, royalty = (Price x 70%) – Delivery fee (roughly $0.15 per MB). Outside that range, royalty = Price x 35%, with no delivery fee.
Paperback royalty: Royalty = (Price x 60%) – Printing cost. Printing cost is a fixed base charge plus a per-page rate that varies by trim size and ink type; black-and-white printing runs roughly $0.012 per page plus about $1.00 fixed, while color printing costs significantly more per page.
Worked Example 1: A $4.99 Ebook
A 3 MB novel priced at $4.99 qualifies for the 70% royalty tier since it falls between $2.99 and $9.99.
- Base royalty: $4.99 x 0.70 = $3.49
- Delivery fee: 3 MB x $0.15 = $0.45
- Net royalty: $3.49 – $0.45 = $3.04 per sale
Worked Example 2: A $12.99 Paperback
A 250-page paperback priced at $12.99, black-and-white interior.
- Print cost: $1.00 + (250 x $0.012) = $1.00 + $3.00 = $4.00
- Base royalty: $12.99 x 0.60 = $7.79
- Net royalty: $7.79 – $4.00 = $3.79 per sale
Compare that to a shorter, 120-page paperback at the same $12.99 price: print cost drops to $1.00 + (120 x $0.012) = $2.44, lifting royalty to $5.35 – proof that page count directly competes with your margin on print books in a way it never does for ebooks.
How It Works Behind the Formula
Amazon designed the 70%/35% ebook split to discourage extreme pricing at both ends. Pricing too low (under $2.99) risks devaluing the wider Kindle marketplace, so Amazon only offers the higher royalty within a “reasonable” band. Pricing too high (over $9.99) pushes a title toward premium or traditionally-published territory, where the lower 35% split still applies. This band effectively nudges most self-published fiction and non-fiction toward the $2.99-$9.99 range, which is also where reader price expectations tend to sit anyway.
The delivery fee only applies inside the 70% tier and exists because Amazon incurs real bandwidth costs delivering files to Kindle devices over cellular and Wi-Fi. Text-only books stay small and barely dent royalty, but image-heavy books (cookbooks, illustrated children’s books, photography collections) can lose a meaningful chunk of royalty to file size alone – which is why many illustrated-book authors compress images aggressively before uploading.
Paperback royalty math is print-cost-driven rather than price-band-driven because Amazon is physically manufacturing a product per order. Page count is the single biggest lever: each additional page adds real ink-and-paper cost, and trim size (5×8 vs 6×9 vs 8.5×11) and interior color both shift the per-page rate substantially, with full-color interiors costing multiples more than black-and-white.
Ebook Royalty by Price Point
| List Price | Royalty Tier | Approx. Royalty (3MB file) |
|---|---|---|
| $0.99 | 35% | $0.35 |
| $2.99 | 70% | $1.64 |
| $4.99 | 70% | $3.04 |
| $9.99 | 70% | $6.54 |
| $12.99 | 35% | $4.55 |
Paperback Royalty by Page Count (at $12.99 List Price)
| Page Count | Est. Print Cost | Est. Royalty |
|---|---|---|
| 100 | $2.20 | $5.59 |
| 200 | $3.40 | $4.39 |
| 300 | $4.60 | $3.19 |
| 400 | $5.80 | $1.99 |
Common Mistakes to Avoid
- Pricing an ebook at $9.98 to “just miss” the top tier boundary and losing money at $10.01. Always double-check the exact $2.99-$9.99 window before publishing.
- Ignoring delivery fees on image-heavy ebooks. A large file size can quietly cut royalty by a dollar or more per sale on cookbooks and illustrated titles.
- Assuming a longer paperback is always more profitable. Page count directly increases print cost, so a longer book needs a proportionally higher price to maintain the same royalty per copy.
- Confusing 70% royalty with 70% profit. The delivery fee and, for print, manufacturing cost are subtracted before you see your actual payout.
- Not testing price points before launch. A $0.10 difference at the $9.99/$10.09 boundary is the difference between a 70% and 35% royalty rate – test carefully.
Tips for Beginners
- Keep new fiction and non-fiction ebooks inside the $2.99-$9.99 band unless you have a specific strategic reason not to.
- Compress cover and interior images before upload to shrink file size and reduce delivery fees.
- For paperbacks, calculate royalty at 2-3 candidate page counts before finalizing your manuscript length if margin matters to you.
- Run promotional pricing (like a $0.99 launch price) with the 35% tier in mind – it’s a deliberate trade of royalty for visibility, not a mistake.
- Recalculate royalty whenever you update trim size, page count, or add color images – small formatting changes can shift your per-copy margin more than people expect.
Frequently Asked Questions
What royalty percentage does KDP pay?
Kindle ebooks priced $2.99-$9.99 earn a 70% royalty minus a small delivery fee; ebooks outside that range earn 35%. Paperbacks earn 60% of list price minus a printing cost based on page count and trim size.
Why did my ebook royalty rate suddenly drop?
Most commonly, the list price moved outside the $2.99-$9.99 window, which automatically switches the royalty from 70% down to 35%.
What is the KDP delivery fee?
It’s a small per-megabyte charge Amazon deducts from the 70% royalty tier to cover the bandwidth cost of delivering your file to Kindle devices, roughly $0.15 per MB depending on marketplace.
How is paperback printing cost calculated?
Printing cost combines a small fixed charge with a per-page rate that depends on trim size and whether the interior is black-and-white or full color; more pages and color printing both raise the cost.
Is it better to publish an ebook or a paperback for royalties?
Ebooks generally offer a cleaner, higher percentage margin since there’s no physical printing cost, but paperbacks can have a higher list price and appeal to readers who prefer physical copies – many authors publish both.
Does KDP charge different delivery fees in different countries?
Yes, the delivery fee rate can vary slightly by Amazon marketplace (US, UK, and others), so international sales may net a slightly different royalty than domestic ones.
Can I change my book’s price after publishing?
Yes, KDP allows you to update pricing at any time, and royalty recalculates automatically based on the new price and tier.
Does a hardcover have a different royalty rate than a paperback?
Yes, KDP hardcover uses its own royalty structure, generally similar in concept (a percentage of list price minus a print cost) but with different fixed and per-page rates than paperback.
Ebook vs Paperback: Which Format Actually Pays More?
A lot of authors assume paperbacks are automatically more lucrative because the list price is usually higher. In practice, the format that pays more per copy depends heavily on your specific numbers. A $4.99 ebook nets roughly $3.04 after the delivery fee, while a $12.99 paperback with a 250-page count nets roughly $3.79 – close enough that neither format wins by default. What tips the scale is usually production cost sensitivity: ebook royalty barely moves once you’re inside the 70% band, while paperback royalty is constantly being squeezed by page count and trim size choices. Authors who want predictable, stable margins often lean toward ebooks, while those who want a physical product to sell at events or through wider retail distribution accept the paperback’s more variable royalty in exchange for that reach.
Many self-published authors ultimately publish both formats side by side, using the paperback as a complementary product rather than the primary income driver, since ebook sales usually make up the bulk of total unit sales for most genres. Series authors in particular benefit from strong ebook royalties on backlist titles that keep selling steadily long after the initial launch, while paperbacks tend to see a bigger spike around launch week and in-person events like conventions or local bookstores that stock a few copies on consignment.
Conclusion
KDP royalties reward authors who understand the mechanics behind the percentages rather than those who price on instinct. For ebooks, staying inside the $2.99-$9.99 band and keeping file size lean protects your 70% tier and minimizes the delivery fee bite. For paperbacks, page count is your biggest lever – a longer book isn’t automatically more profitable, since every added page adds real printing cost that comes straight out of your 60% share. Run your specific price, file size, and page count through the calculator above before you hit publish, and re-check the numbers any time you adjust formatting, trim size, or interior color. A few minutes of math up front can be the difference between a book that quietly subsidizes Amazon’s printing costs and one that actually pays you what it should.