IngramSpark vs. Amazon KDP: Which Is Better for Wide Distribution?

IngramSpark vs. Amazon KDP is the classic self-publishing distribution question, and the honest answer is that they’re built for different jobs. KDP dominates Amazon; IngramSpark opens the doors to bookstores and libraries. Choosing wrong can cost you reach or royalties. Here’s a clear, head-to-head comparison across the factors that matter, plus the strategy most pro authors actually use.

Distribution Reach Compared

This is the core difference. KDP sells directly on Amazon, the world’s largest bookstore, and offers limited “expanded distribution” for print, but it isn’t how physical bookstores or libraries typically stock books. IngramSpark feeds the Ingram catalog that bookstores and libraries actually order from, reaching 40,000+ retailers and wholesalers across the US, UK, and globally. If you want shelf presence beyond Amazon, IngramSpark is how you get there. (For the bookstore angle specifically, see our formatting checklist to make sure your files qualify on both.)

Royalty Structure Compared

Royalties work differently on each platform:

• KDP e-books: 70% royalty in the $2.99–$9.99 price band (35% outside it), the most generous e-book deal for Amazon sales.
• KDP print: 60% of list price minus Amazon’s printing cost, strong for Amazon sales.
• IngramSpark print: you set a wholesale discount (commonly 55% for bookstores), and earn list price minus that discount and the print cost. Lower net per copy, but it’s what makes bookstores willing to stock you.

Translation: KDP pays more per Amazon sale; IngramSpark pays less per copy but unlocks channels KDP can’t.

Bookstore and Library Access

This is IngramSpark’s decisive advantage. Bookstores and libraries are wary of ordering through Amazon (a competitor) and expect industry-standard terms, namely a trade discount and returnability. IngramSpark lets you offer both, which is why it’s the route to physical retail and library sales. KDP’s expanded distribution exists but rarely achieves real bookstore placement. If brick-and-mortar matters to you, IngramSpark is essentially required.

Cost and Revision Fees

A note on ISBNs: KDP can assign a free one, but it’s Amazon-branded. For a professional imprint, especially if you’re going wide, owning your own ISBN (used on IngramSpark) gives you more control.

Which Should You Choose, or Use Both?

Here’s the strategy most professional self-publishers use:

• KDP for Amazon, list your e-book and print edition on KDP to earn the highest royalty on Amazon, where most sales happen.
• IngramSpark for everywhere else, use IngramSpark for wide print distribution to bookstores, libraries, and non-Amazon retailers.
• Avoid overlap conflicts, don’t enable KDP’s expanded distribution for the same channels IngramSpark covers, to prevent listing clashes.

Using both gives you Amazon’s royalties and Ingram’s reach. The downside is admin: two dashboards, two sets of specs, ISBN management, and discount/returns decisions, which is exactly where many authors get stuck.

The Third Option: Let Prime Publishing Hub Handle Both

You don’t have to choose between reach and simplicity. Prime Publishing Hub sets up and manages your distribution across both KDP and IngramSpark, so you get maximum reach without the technical headaches:

• Correctly formatted print and e-book files for each platform.
• ISBN guidance and setup for a professional imprint.
• Pricing, discount, and returns settings configured properly.
• Coordination with your print, e-book, and KDP setup, plus marketing to drive sales.

Final Verdict

There’s no single winner, KDP and IngramSpark are complementary, not competitors. Use KDP for Amazon’s royalties and IngramSpark for real-world reach into bookstores and libraries. And if managing both sounds like more than you signed up for, that’s exactly what Prime Publishing Hub is here to handle.

Ready to distribute everywhere? Request a free quote or talk to our team.