KDP Reports Guide: Understanding Your Royalty Reports

Your KDP reports tell you exactly how much money you're making, where it's coming from, and which books are actually pulling their weight. The problem? Amazon buries useful data across six different report types, each with its own quirks and delays. This guide breaks down every KDP report so you can read them confidently, spot problems early, and make smarter publishing decisions.

The Six KDP Report Types (and What Each One Actually Shows You)

When you log into your KDP dashboard and click "Reports," you'll see six tabs. Here's what each one does:

• Month-to-Date Unit Sales: A running tally of units sold during the current month. Updates roughly every couple of hours, though Amazon warns of delays up to 72 hours. This is the report most authors obsessively refresh.
• Prior Months' Royalties: Your finalized earnings for previous months. This is where you find the actual royalty figures Amazon uses for payment. Numbers here won't change.
• Historical: Lets you pull data going back to your first sale. You can filter by date range, marketplace, title, and format. This is the most flexible report for tracking trends over time.
• Payment: Shows what Amazon actually deposited into your bank account, broken down by marketplace. Payments typically arrive about 60 days after the end of each month.
• KENP Read (Kindle Edition Normalized Pages): Tracks page reads from Kindle Unlimited and Kindle Owners' Lending Library. Your KU income depends entirely on this number multiplied by the per-page rate Amazon sets each month.
• Prior Six Weeks' Royalties: A rolling six-week view that updates daily. Think of it as a middle ground between the real-time feel of month-to-date and the finality of prior months.

Month-to-Date Sales: What You're Really Looking At

This is the report you'll check most often, so understand its limitations. The unit count updates throughout the day, but it's not real-time. Sales can take hours to appear, and during peak periods like Prime Day or holiday launches, delays get worse.

A few things to watch for:

• Free units vs. paid units: If your book is enrolled in a free promotion, those downloads show up here but generate zero royalty. Make sure you're not confusing free downloads with paid sales.
• Marketplace splits: Your report defaults to all marketplaces combined. Click into individual marketplaces (amazon.com, amazon.co.uk, amazon.de, etc.) to see where your sales are actually happening. Some authors discover 20-30% of their income comes from non-US markets.
• Returned units: Returns show as negative numbers. A sudden spike in returns on a specific title could signal a quality issue, a misleading blurb, or a formatting problem on certain devices.

KENP Reads: The KU Number That Matters Most

If you're enrolled in KDP Select, your KENP report is just as important as your sales report. Maybe more so. For many fiction authors, KU page reads account for 50-70% of total income.

Each book gets a KENP count based on a standardized page calculation Amazon controls. A 300-page paperback might equal 350 KENP or 280 KENP. You don't set this number. Amazon does. You can see your book's total KENP count on your Bookshelf under "Kindle eBook Actions."

The per-page rate fluctuates monthly. In 2024, it's hovered between $0.004 and $0.005 per page. That means a full read-through of a 400 KENP book earns you roughly $1.60 to $2.00. Amazon announces the KDP Select Global Fund and per-page rate in the second or third week of the following month.

One critical detail: KENP reads are reported by marketplace with a delay of up to three days. If you run a promotion on Tuesday and expect a KU spike, don't panic if Wednesday's numbers look flat. Wait until Friday before drawing conclusions.

Prior Months' Royalties vs. Payment Reports

Authors often confuse these two. Here's the difference in plain terms:

Prior Months' Royalties shows what you earned. Payment shows what you received. The gap between them is the 60-day payment delay Amazon enforces. So your January earnings appear in your bank account around the end of March.

Your royalty report also breaks down the math: list price, delivery cost (for eBooks, based on file size), and your royalty rate (35% or 70%). If your numbers look off, check the delivery cost column. Large image-heavy eBooks can lose $0.10 to $0.15 per sale in delivery fees at the 70% royalty tier.

The Payment report is also where you spot tax withholding. If you haven't filed your W-8BEN (for non-US authors) or W-9 (for US authors), Amazon withholds up to 30% of your royalties. That's money you'll never get back unless you sort out the paperwork.

Using the Historical Report for Smarter Decisions

The Historical report is the most underused tool in your KDP dashboard. You can export data to a spreadsheet and track performance over any time range you choose.

Here's how I use it: every quarter, I pull a full export, sort by title, and identify which books earned less than $50 over the past 90 days. Those are candidates for updated covers, new descriptions, or price experiments. A book earning $12 a quarter isn't dead. It might just need a better keyword strategy or a fresh subtitle.

You can also compare marketplace performance quarter over quarter. If your UK sales dropped 40% while US stayed flat, that's a signal to check your UK pricing or investigate whether a competitor launched something similar in that market.

For tracking how your sales rank correlates with actual units sold, pairing your Historical report data with a tool like PublishRank's BSR Tracker gives you a much clearer picture. Sales rank alone is meaningless without context. Connecting rank movements to your actual royalty data is where real insights live.

Common KDP Report Mistakes to Avoid

After years of doing this, I see the same reporting mistakes over and over:

• Checking month-to-date sales hourly and making decisions based on partial data. Wait at least 48 hours before reacting to a dip. Short-term fluctuations are normal.
• Ignoring non-US marketplaces. If you only look at amazon.com numbers, you're missing part of the picture. Some genres perform disproportionately well in the UK, Germany, or Australia.
• Forgetting about currency conversion. Your payment report shows amounts in your local currency after conversion. Exchange rate shifts can make it look like your earnings changed when your unit sales were actually stable.
• Not downloading and archiving reports. Amazon's interface only goes back so far in certain views. Export your data monthly and keep your own records. A simple spreadsheet is fine.
• Mixing up "orders" and "royalties." An order doesn't become a royalty until the return window closes. This is why month-to-date numbers sometimes adjust downward after the month ends.