KDP Paperback Royalties 2026: The 50% Rule Under $9.99

On Amazon.com, KDP pays 60% of a paperback's list price when it is $9.99 or more, and 50% when it is $9.98 or less — then subtracts the printing cost. That one-cent line changes how paperbacks should be priced, especially puzzle books, journals and other low-content books that often sell for under $10.

In short: royalty = rate × list price − printing cost. The rate is 50% up to $9.98 and 60% from $9.99 on Amazon.com, so the step from $9.98 to $9.99 is worth about $1.00 per copy whatever your book costs to print. Printing depends only on page count, ink and trim size, and it also sets the lowest price KDP will accept.

How are KDP paperback royalties calculated?

Royalty per copy = royalty rate × list price − printing cost. On Amazon.com the rate is 60% for list prices of $9.99 and above and 50% for $9.98 and below. Books sold through Expanded Distribution — bookshops, libraries and other retailers — earn a flat 40%, minus printing.

Two things follow from the formula:

• Printing is subtracted in full whatever price you choose. A lower price takes a smaller share of a fixed cost.
• The rate applies to the whole price, not just the part above $9.99. Crossing the line lifts the rate on every cent.

What changed in 2025?

Paperbacks on Amazon.com used to earn 60% at any list price. In 2025 KDP introduced the lower 50% rate for paperbacks priced below $9.99. Books priced at $9.99 or more were not affected, which is why so many paperbacks now sit at exactly $9.99. If you published before the change and priced under $9.99, your per-copy royalty dropped even though nothing in your book changed.

How much does KDP charge to print a paperback?

For black ink on white or cream paper, Amazon.com printing in 2026 works like this:

Colour costs more per page:

The flat band matters: a black-ink book of 24 pages and one of 110 pages cost the same to print. Above 110 pages every extra page adds a little, so trimming blank or filler pages lowers the cost. The KDP royalty calculator works all of this out for any page count.

What does the 50% rule do to a typical book?

It makes the last cent before $9.99 expensive. These examples use the Amazon.com rates above, rounded to the cent:

Moving from $9.98 to $9.99 adds one cent for the buyer and about $1.00 per copy for you — 60% × $9.99 − 50% × $9.98 = $1.00. Because the printing cost is the same on both sides, the jump is the same for every black-and-white book. Moving from $8.99 to $9.99 adds about $1.50 per copy.

These are per-copy royalties, not a forecast of sales. Whether a higher price sells is up to your market — check what similar books in your niche cost before you decide.

Is there a minimum list price on KDP?

Yes. KDP will not let you set a price where the royalty would be below zero, so the minimum is the printing cost divided by the royalty rate. A 6 × 9 in, 120-page book costs $2.44 to print, so its minimum at 50% is $4.88.

Thicker and larger books hit the line sooner:

At 300 pages a 6 × 9 in book cannot be sold at $7.99 or $8.99 at all, and an 8.5 × 11 in book needs to be at least $10.17. Once the 50% minimum would pass $9.99, the 60% rate sets the minimum instead — that is why a 250-page, 8.5 × 11 in book can still be priced at exactly $9.99.

Should puzzle and low-content books be priced at $9.99?

Not automatically, but run the numbers before you choose $7.99 or $8.99. Puzzle books are often priced under $10, and under the 50% rule the lower prices leave noticeably less per copy.

Three ways sellers handle it:

• Price at $9.99 and make the book visibly worth it: more puzzles, large print, a theme buyers care about, a clean cover. The extra dollar per copy pays for a better book.
• Lower the printing cost: answers four or six to a page instead of one, no blank backs unless the format needs them, and a regular trim size instead of a large one where the format allows. Twenty fewer pages saves $0.24 at regular trim or $0.34 at large trim once you are above 110 pages.
• Keep a lower price on purpose: for a first book, a series starter or a seasonal gift where price matters most, knowing the per-copy royalty is smaller.

The trim size guide shows margins for each size if you are deciding between 6 × 9 in and 8.5 × 11 in, and how to make a word search book for KDP covers page counts for puzzle books.

How does Expanded Distribution change the numbers?

Expanded Distribution sends your paperback to bookshops, libraries and other retailers. It pays a flat 40% of the list price, minus the same printing cost — there is no $9.99 threshold.

For the 6 × 9 in, 120-page example at $9.99, an Expanded Distribution sale earns 40% × $9.99 − $2.44 ≈ $1.56, compared with $3.55 on Amazon.com. The lowest price for Expanded Distribution is also higher: $2.44 ÷ 40% = $6.10. Low-content books published without an ISBN cannot use Expanded Distribution at all.

Does the 50% rule apply on other Amazon marketplaces?

The thresholds in this guide are for Amazon.com in US dollars. Other marketplaces have their own price thresholds and printing costs in their own currencies, so check each one in KDP's pricing screen before you publish. Kindle eBooks follow a different system (35% or 70%) and are not covered here.

How do you check your own royalty?

1. Export your interior and note the exact page count.
2. Enter list price, page count, ink and trim size in the KDP royalty calculator. It shows the printing cost, which rate applies, the royalty per copy and the lowest price KDP will accept.
3. Try your price at $9.98 and $9.99 to see the difference for your book.
4. Confirm in KDP's own printing cost and royalty calculator and in the pricing screen, which always has the final say.

Checklist before you set a price

• Final page count, after the last interior change
• Printing cost for your trim, ink and page count
• Royalty at your chosen price, and at $9.99 for comparison
• Prices of the top books in your niche
• Whether you want Expanded Distribution (it needs an ISBN)

If you are building a puzzle book, the DT Labs word search maker shows the page count of the whole book as you change grids and answers per page, so you can see the printing cost before you export.