How to Change Your KDP Categories (Step by Step)

You change your KDP categories yourself, right in your KDP Bookshelf by editing your book's details. You get up to three categories per format (ebook, paperback, and hardcover each get their own three), and you can swap them anytime with no penalty. Note that the old trick of emailing Amazon support to request extra categories no longer works — Amazon removed that option in 2023 and now says it no longer accepts requests to add or update categories. So the real edge isn't asking for more slots; it's using your three wisely, picking categories you can actually rank in rather than broad, crowded ones.

Why Your KDP Categories Matter More Than You Think

Amazon uses categories to determine where your book shows up in the store. Pick the wrong ones and you're invisible. Pick the right ones and you could hit a bestseller tag with as few as 10-20 sales per day.

Here's the thing: KDP only gives you access to a fraction of Amazon's full category tree during the publishing process. There are over 16,000 categories on the Kindle store. Your KDP dashboard shows you maybe a few hundred. The best categories, the ones with low competition and real reader traffic, often aren't available through the standard dropdown menus.

That's why knowing how to change your categories after publishing is so important.

Method 1: Change Categories Through Your KDP Bookshelf

This is the straightforward approach. Here's exactly what to do:

1. Log in to your KDP account and go to your Bookshelf.
2. Find the book you want to update and click the "..." (ellipsis) button next to it.
3. Select "Edit eBook Details" (or "Edit Paperback Details" for print).
4. Scroll down to the "Categories" section.
5. Click "Set Categories" to open the category browser.
6. Remove your current categories and select new ones. You can choose up to three.
7. Click "Save and Continue" and publish through to the end.

Your changes will typically go live within 24 to 72 hours. Sometimes faster.

The limitation here is obvious: you can only pick from the categories Amazon shows you in that interface. And those categories don't always match what you see when browsing the actual Kindle store.

What About Emailing Support for More Categories?

You may have read older guides that tell you to email KDP support to request up to 10 categories per book. That method is dead. Amazon removed it in 2023, and its help pages now state plainly: "Since you can now choose your own categories, we are no longer accepting requests to add or update categories." Don't waste time contacting support to add, request, or change categories — they won't do it.

Here's what actually replaced it: you now pick your own categories directly in the dashboard, up to three per format. The upside is you're in full control and can change them yourself in minutes. The downside is the hard cap of three per format, which makes each choice matter far more.

The one thing Amazon still does automatically is place your book in extra browse categories based on your keywords, BISAC selections, and metadata. You can influence that with a well-chosen subtitle and backend keywords, but you cannot request a specific node. Choose your three deliberately: one narrow niche you can rank #1 in, one mid-sized, one broader.

How to Find the Best Categories for Your Book

Picking categories is part research, part strategy. You want categories where:

• The #1 bestseller has a sales rank you can realistically compete with
• There's actual reader traffic (not a dead category nobody browses)
• Your book genuinely fits the genre expectations

One approach is to look up competing books in your niche, scroll down to their product page, and check which categories they rank in. Then note down the full category paths.

If you want to skip the manual digging, PublishRank's Category Optimizer lets you search and compare KDP categories by competition level and browse node data. It saves a lot of the back-and-forth guesswork, especially when you're trying to find those hidden categories that don't appear in the KDP dashboard.

Common Mistakes When Changing KDP Categories

Picking overly broad categories. "Fiction" or "Nonfiction" as a top-level category is almost useless. You'll never rank there. Go as specific as possible.

Choosing categories just because they're easy to rank in. If the category has nothing to do with your book, readers who find you there will bounce. That hurts your conversion rate, and Amazon notices.

Forgetting to update after a relaunch or rebrand. If you've changed your cover, subtitle, or content angle, your old categories might not fit anymore. Always revisit categories when you make significant changes to your book's positioning.

Wasting your three slots on broad categories. With only three per format and no way to request more, the biggest mistake is spending all three on giant, crowded categories you'll never rank in. Reserve at least one for a narrow niche where a handful of sales earns the orange bestseller badge.

How Often Should You Change Your Categories?

There's no penalty for changing categories. Amazon doesn't flag or suppress books for updating this information. In my experience, it makes sense to review your categories at least every few months, or whenever you notice a dip in sales rank that isn't explained by other factors.

Some authors test new categories every 30 days during a book's first six months. That's not a bad approach. The data you get from ranking in different categories tells you a lot about where your readers actually browse.

Just keep a spreadsheet. Track which categories you've tried, what your rank was in each, and how long you stayed there. Over time, you'll build a clear picture of where your book performs best.