How to Choose KDP Categories: A Step-by-Step Method
A repeatable method for choosing your three KDP categories by relevance, buyer fit and competition, with a worked example and a ve…
Search "which KDP royalty plan" and you'll find a lot of guesswork. Here's the actual answer: for paperbacks, there isn't one to pick. Your royalty rate is set automatically by your list price, or by whether you enroll in a separate distribution option. This article is about paperback royalties specifically — Kindle eBooks work differently, and we'll flag exactly where they diverge.
The short answer: there's no paperback "plan" to choose
On the Kindle eBook side, KDP really does ask you to pick a setting: 35% or 70% royalty, with rules attached. That's a real, named choice.
Paperbacks don't work that way. There's no dropdown labeled "royalty plan." Instead, KDP calculates your royalty with one formula:
Royalty = (royalty rate × list price) − printing cost
The "rate" in that formula isn't something you select — it's determined by where your list price falls, or by a separate distribution setting.
How the rate is actually set
For sales through Amazon's own US retail channel (amazon.com), the rate depends on your list price:
| List price | Amazon-channel royalty rate (US) |
|---|---|
| $9.98 or below | 50% |
| $9.99 or above | 60% |
That's it — automatic, not a signup. Price the book at $9.99 and you're in the 60% band; a penny lower and you're in the 50% band. Try the KDP royalty calculator to run your own list price and page count through the formula.
The $9.99 cliff: one cent, about a dollar
Because the rate jumps rather than sliding, the one-cent difference between $9.98 and $9.99 is not a one-cent difference in royalty — it's closer to a dollar. Here's a worked example for a 120-page, 8.5×11 book (large trim, so printing runs $1.00 + $0.017/page = $3.04):
| List price | Rate | Royalty before printing | Printing cost | Net royalty per copy |
|---|---|---|---|---|
| $9.98 | 50% | $4.99 | $3.04 | $1.95 |
| $9.99 | 60% | $5.994 | $3.04 | ≈$2.95 |
Same book, one cent of list price — and net royalty jumps by just over a dollar. That's the whole "which plan" confusion in one table: no plan, just a price threshold with an outsized effect at the edge of it.
Page count matters too, separately from the price cliff. Large-trim printing is a flat $2.84 for 24–110 pages, then $1.00 + $0.017 per page above that. Trim ten pages off the same $9.99 book — down to 110 pages — and printing drops to the flat $2.84, pushing net royalty to about $3.15. Ten pages, twenty cents, no price change at all. Run your own trim size and page count through the KDP printing cost calculator before you lock in a page count.
Printing cost, in full
Printing cost (US, black ink) depends on trim size and page count:
| Trim size | 24–110 pages | Above 110 pages |
|---|---|---|
| Regular trim (≤6.12" wide, ≤9" high) | Flat $2.30 | $1.00 + $0.012/page |
| Large trim | Flat $2.84 | $1.00 + $0.017/page |
Amazon deducts this from every sale — you never pay it upfront. Publishing itself costs nothing to list; the printing cost only ever comes out of a royalty that already happened.
Expanded Distribution: a different rate, still not a "plan"
The other place a "40%" number shows up is Expanded Distribution, a separate, free-to-enroll setting for paperbacks (hardcovers aren't eligible). It pays a flat 40% of list price minus printing cost, regardless of what your list price is — no $9.99 tier to worry about.
In exchange, it puts your book in front of US and UK distributors who supply bookstores, libraries, and academic institutions — but enrolling doesn't guarantee any of them actually orders your book.
So a paperback has two independent settings, not one "plan": the price-driven Amazon-channel rate (50%/60%), and the separate, flat 40% Expanded Distribution enrollment. They're not mutually exclusive — you can be enrolled in Expanded Distribution and still get the 50%/60% split on your direct Amazon sales.
Don't confuse this with the eBook 35%/70% setting
If you've seen "35%" or "70%" while researching KDP, that's the Kindle eBook royalty setting — a genuinely different, ebook-only choice, and unlike paperbacks, it really is something you pick. It has nothing to do with paperback pricing math, and this article doesn't cover its rules. This article is about paperbacks only; treat the eBook setting as a separate topic.
What a paperback actually costs you
Since there's no royalty plan to buy into, the real cost list is short: an ISBN (KDP provides a free one, or you can supply your own), proof copies if you order them (print cost plus shipping), and whatever time or tools go into building the interior itself.
If that last one is where your hours go, KDP Creator generates print-ready 300-DPI interior pages — sudoku, word search, maze, math, number-fill, crossword, and word-scramble — as a numbered PNG set with a manifest, which you assemble into your own interior file. See KDP Creator or the full pricing page for plans.
What you can't look up — and what you can calculate
One more source of confusion: Amazon publishes no bestseller list by exact unit sales and no per-title sales feed. The only public signal is Best Sellers Rank — a relative rank, not a sales count. You can't reverse-engineer "the right price" from sales data that doesn't exist.
What you can do is calculate your own royalty exactly, for any price and page count, before you publish — and estimate roughly what a given BSR might represent with the BSR to sales calculator. The royalty math is exact; the BSR estimate is a rough translation of a rank.
FAQ
Is there really no KDP royalty plan for paperbacks?
Correct — that's specific to Kindle eBooks (35% vs 70%). Paperback royalty rate is set by your list price (50% at or below $9.98, 60% at $9.99 and up) or by enrolling in Expanded Distribution (flat 40%). Neither is a plan you pick from a menu.
Why does one cent at $9.99 change my royalty so much?
Because the 50%/60% split is a threshold, not a gradual slope. Below $9.99 you're at 50% of list price; at $9.99 and above, 60%. Once printing cost is subtracted the same way on both sides, that one cent is worth roughly a dollar in net royalty per copy.
Does Expanded Distribution replace my Amazon-channel royalty?
No. Expanded Distribution is a separate enrollment that pays a flat 40% of list price minus printing cost on sales through its distributor network. Your direct Amazon sales still follow the 50%/60% price-based rate. It's free to enroll, but there's no guarantee any distributor or bookstore actually orders copies.
Does page count affect my royalty even if the price stays the same?
Yes, through printing cost. US black-ink printing is a flat rate up to 110 pages (by trim size), then a per-page rate above that. Crossing from 110 to 120 pages on a large-trim book adds meaningfully to the printing cost that gets subtracted from your royalty — separate from anything the list price does.
Can I see how many copies a book has actually sold?
Not from Amazon's public site. There's no published bestseller list by unit sales and no per-title sales feed — only Best Sellers Rank, which is relative to other titles, not a count. Any "X copies sold" claim you see about someone else's book isn't coming from an official Amazon number.
