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Understanding KDP Royalties: A Complete Guide

4 September 2026 · 4 min read

Understanding KDP Royalties: A Complete Guide

Short answer

Amazon KDP royalties are based on two main options: 35% or 70% of your book's listed price. The choice depends on factors like pricing, distribution, and file size. Understanding these options helps authors maximize their earnings.

What Are Amazon KDP Royalties?

Amazon Kindle Direct Publishing (KDP) offers two royalty plans: 35% and 70%. Your earnings depend on the list price, distribution, and file size. Understanding these options can help you maximize your earnings through strategic pricing and distribution choices.

35% Royalty Option

  • Pricing Flexibility: Available for books priced below $2.99 or above $9.99. This option provides flexibility in pricing, allowing authors to set prices outside the $2.99 to $9.99 range.
  • Lower Earnings Potential: While it offers flexibility, the 35% royalty option results in lower earnings per sale compared to the 70% option. This might be suitable for authors who want to price their books very low to attract more readers or very high for niche markets.

70% Royalty Option

  • Optimal Price Range: Available for books priced between $2.99 and $9.99. This range is considered the sweet spot for maximizing royalties under the KDP model.
  • KDP Select Requirement: To qualify for the 70% royalty, your book must be enrolled in KDP Select, which means it will be exclusive to Amazon for a certain period. This can increase visibility and potentially boost sales through programs like Kindle Unlimited.
  • Delivery Fees: Subject to delivery fees based on file size ($0.15/MB). Larger files incur higher costs, reducing your royalties.

Calculating Your KDP Royalties

To calculate your expected royalties, consider the list price, royalty rate, and delivery costs (if applicable). Understanding these calculations can help you set realistic financial goals and pricing strategies.

Worked Example

For a 100 MB ebook priced at $4.99:

  • 70% Royalty:
  • List Price: $4.99
  • Royalty: 70% of $4.99 = $3.49
  • Delivery Cost: $0.15 x 100 = $15 (Note: A 100 MB ebook is unusually large; typical ebooks are much smaller, often under 10 MB)
  • Net Royalty: $3.49 - $0.15 = $3.34

#### Adjusting for Realistic File Sizes For a more typical ebook size of 5 MB:

  • Delivery Cost: $0.15 x 5 = $0.75
  • Net Royalty: $3.49 - $0.75 = $2.74

Edge Cases

  • Books with High-Resolution Images: If your ebook contains high-resolution images, consider compressing them to reduce file size, thus lowering delivery costs.
  • Low-Priced Books: For books priced under $2.99, the 35% royalty applies, and delivery costs do not affect your earnings.

Pricing Strategies for Maximum Earnings

Finding the pricing sweet spot is crucial. Consider competitiveness, genre, and market demand. Pricing between $2.99 and $9.99 often maximizes royalties under the 70% plan. Here are some strategies:

  • Market Research: Analyze similar books in your genre to determine competitive pricing.
  • Promotional Pricing: Use temporary price reductions to boost visibility and sales rank.
  • Price Experimentation: Test different price points to see which generates the most sales and highest royalties.

Using the Printing Cost Calculator

For paperback books, use the KDP Printing Cost Calculator to estimate costs based on page count, ink type, and trim size. This tool helps in setting a profitable list price by providing a clear picture of production costs.

Example Calculation

  • Book Specifications:
  • Trim Size: 6x9
  • Page Count: 300
  • Ink Type: Black & White
  • Cost Calculation:
  • B&W Cost per Page: $0.012
  • Total Printing Cost: 300 x $0.012 = $3.60

Edge Cases

  • Color Printing: If your book requires color printing, costs increase significantly. For a 300-page color book at 6x9:
  • Color Cost per Page: $0.070
  • Total Printing Cost: 300 x $0.070 = $21.00
  • Different Trim Sizes: Larger trim sizes incur higher costs. For example, an 8x10 book has higher page costs.

ISBN and KDP

Amazon provides a free ISBN, or you can use your own. An ISBN affects distribution channels and brand control.

Considerations

  • Free ISBN: Using Amazon's free ISBN limits distribution to Amazon and its partners.
  • Own ISBN: Purchasing your own ISBN allows broader distribution options and more control over your book's metadata.

From Manuscript to Listing

Yumo can streamline your publishing process, offering complete book packages including niche research, styling, and cover design for Amazon KDP. This service can be particularly beneficial for first-time authors.

FAQs About KDP Royalties

  1. What is the KDP 70 percent royalty?

The KDP 70 percent royalty is a higher earning option for ebooks priced between $2.99 and $9.99, subject to delivery fees. It's ideal for authors looking to maximize their earnings through strategic pricing.

  1. How do I use the printing cost calculator?

The KDP Printing Cost Calculator helps estimate the cost of printing a paperback based on page count and ink type, aiding in pricing decisions. Simply input your book's specifications to receive an estimate.

  1. Can I change my royalty option after publishing?

Yes, you can update your royalty and pricing options through your KDP dashboard at any time. This flexibility allows you to adjust your strategy based on market trends or sales performance.

  1. What factors affect ebook delivery costs?

Delivery costs are based on the ebook file size, impacting royalties under the 70% plan. Authors should aim to optimize file sizes by compressing images and removing unnecessary data.

  1. Is an ISBN necessary for KDP?

While not required, having an ISBN can enhance distribution and control over your book's brand identity. It is especially recommended for authors planning to distribute outside of Amazon.

For authors looking to simplify their publishing journey, explore Yumo's services for a complete, stress-free approach.

Frequently asked questions

How do KDP royalties work?

KDP royalties are determined by the list price and chosen royalty plan (35% or 70%). The 70% plan includes delivery fees, based on file size.

What is the best price for maximizing KDP royalties?

Pricing between $2.99 and $9.99 optimizes earnings under the 70% royalty option, balancing competitiveness and profit.

Do I need an ISBN for my KDP book?

An ISBN is not required for KDP, but it can improve distribution options and control over your book's branding.

Can I change my book's price and royalty settings later?

Yes, you can adjust your book’s pricing and royalty settings anytime through your KDP dashboard.

What are delivery costs in KDP publishing?

Delivery costs apply to ebooks under the 70% royalty plan, based on file size, typically $0.15/MB.

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