You’ve published your first book on Amazon and watched the sales crawl along at one or two copies per week. Then you see other authors talking about their “free book promotions” that brought in thousands of downloads and boosted their visibility.
Amazon KDP Free Book Promotions sound promising — but they’re not as simple as flipping a switch and watching downloads pour in.
Let’s break down what actually works, when to use them, and when to skip them entirely.
Why Run KDP Free Book Promotions?
Free promotions serve three main purposes. None of them involve making money directly.
First, they boost your book’s ranking in Amazon’s algorithm. When thousands of people download your book during a free period, Free downloads affect Amazon’s free-store rankings and can increase visibility, but Amazon does not publicly disclose exactly how free downloads influence paid-store rankings after a promotion ends.
Second, they can expand your reader base quickly. New readers who might never have risked money on an unknown author may grab a free book. Some become long-term fans who buy your future releases at full price.
Third, they can generate reviews. More downloads increase the potential pool of readers who may leave reviews, though free-book downloaders generally review at lower rates than paying customers.
The catch? You earn zero royalties during the free period. Your book needs to be enrolled in KDP Select, which means it can’t be sold anywhere else. And there’s no guarantee the visibility boost will last.
How to Set Up a KDP Free Book Promotion
Setting up the promotion itself takes about two minutes. The preparation takes much longer.
First, enroll your book in KDP Select if it isn’t already. This gives you access to five free promotional days every 90-day period. You can use all five days in a row or spread them out.
In your Amazon KDP dashboard, go to your book’s promotion tab. Select your dates. Schedule at least 48 hours in advance to give yourself time for the next crucial step.
Don’t just flip the switch and hope for the best. Plan your marketing push around the free period.
It’s important to note that free promotions are available only for eBooks. Paperback and hardcover editions are not eligible for KDP Free Book Promotions.
Submit Your Free Book to Book Promotion Websites
This is where most authors either succeed or waste their promotional days entirely.
Free book promotion websites aggregate deals for bargain-hunting readers. Some charge submission fees, others are free. The paid ones often deliver better results because they have larger, more engaged email lists.
Start with the heavy hitters. BookBub is the gold standard — but they’re extremely selective and often booked months in advance. Apply anyway, but don’t count on acceptance.
More accessible options include FreeBooksy, BargainBooksy, and Robin Reads. Each has different submission requirements and lead times. Some want your book submitted weeks in advance, others accept last-minute submissions.
Check our comprehensive book promotion sites directory to find the right site to promote your book and reach more readers.
Book promotion site directory
Don’t forget your own marketing channels. Email your existing readers, post on social media, and ask author friends to share. The promotion websites amplify your reach — they don’t replace your own marketing effort.
Timing Your Submissions
Most promotion sites require advance notice. BookBub wants 2-4 weeks. Smaller sites might accept submissions with just a few days’ notice.
Create a spreadsheet with submission deadlines, requirements, and costs. Plan your promotion calendar around the biggest opportunities, not just when you feel like running a sale.
Genre matters too. Romance and mystery tend to perform better on promotion sites than business or self-help. Know your audience and choose sites accordingly.
When You Shouldn’t Run a Free Book Promotion
Free promotions aren’t always smart strategy. Sometimes they actually hurt your long-term sales.
- Skip the free promotion if your book is brand new and you haven’t built any marketing momentum. A few dozen downloads from friends and family won’t move the needle. Wait until you have some genuine reviews and social media presence.
- Don’t go free if your book is already selling steadily. Why give away what people are willing to buy? Free promotions work best for books that have stalled or need a visibility boost.
- Avoid free promotions right before launching a new book in the same series. You want readers buying the new release, not downloading the old one for free.
Consider your genre carefully. Some nonfiction and literary fiction categories may see weaker results from free promotions than commercial genre fiction, though outcomes vary significantly by niche. The “freebie hunters” who dominate these promotions may not be your ideal readers.
The Opportunity Cost
Remember, you only get five free promotional days every 90 days through KDP Select. Using them randomly means you can’t use them strategically later.
Save your promotional days for when you can maximize their impact — like supporting a new book launch or breaking through a sales plateau.
Plan Your Book Marketing Campaign
A successful free promotion is just one piece of a larger marketing strategy. Think beyond the five free days.
Plan a follow-up sequence. What happens when your book returns to paid status? Have your next marketing moves ready — maybe a discounted sale, social media campaign, or email series to new subscribers.
Use our book launch checklist to map out the complete campaign. Free promotions work best when they’re part of a coordinated effort, not isolated events.
Track everything. Downloads during the free period, sales in the weeks after, review generation, and ranking changes. You need this data to improve future promotions.
Consider the series effect. If you’re promoting book one of a series, make sure books two and three are ready for purchase. Free promotions often work best as loss leaders that drive sales of follow-up titles.
Building Your Email List
Free promotions are excellent for list building — if you’re prepared for it. Include a compelling reader magnet in your book’s front matter. Offer a free bonus chapter, character guide, or related resource in exchange for email signups.
You can amplify your results even further through email swaps with other authors in your genre. By recommending each other’s books or reader magnets to your respective audiences, you can reach highly targeted readers who are already interested in books like yours.
Your email list is worth far more than any single promotion. Amazon rankings come and go, but a list of engaged readers gives you a direct way to promote future books, launch new releases, recruit ARC readers, and build long-term relationships with your audience. The most successful free promotions don’t just generate downloads — they turn first-time readers into subscribers who stay with you for years.
Book title: [YOUR BOOK TITLE]
Genre: [YOUR GENRE]
Promotion dates: [YOUR CHOSEN DATES]
Current marketing channels: [YOUR EXISTING CHANNELS]
Include:
1. A 4-week pre-promotion timeline with specific tasks
2. Recommended book promotion sites for my genre with submission deadlines
3. Social media post templates for the promotion period
4. Follow-up marketing activities for the 2 weeks after the promotion ends
5. Key metrics to track and goals for each metric
Make this actionable with specific deadlines and realistic expectations for a first-time promotion.
Measuring Success
Downloads aren’t the only metric that matters. Track ranking improvements, review generation, and most importantly — sales after the promotion ends.
A successful free promotion should drive paid sales for weeks afterward. If your book returns to its previous sales level immediately, the promotion didn’t create lasting momentum.
Use Amazon’s Author Central dashboard to monitor sales rank changes across different categories. Sometimes a free promotion helps you break into new genre categories where you can maintain better visibility.
Making Free Promotions Part of Your Long-term Strategy
The authors who benefit most from free promotions don’t run them randomly. They integrate them into broader marketing strategies that span months, not days.
Plan seasonal promotions around holidays or relevant themes in your genre. Romance authors might time free promotions around Valentine’s Day, while business book authors might target New Year’s resolution season.
Coordinate with other authors in your genre. Joint promotions and cross-promotion opportunities can multiply your reach without additional cost.
Consider your publication schedule. Free promotions work best when you have multiple books available. Readers who discover you through a free book need somewhere to spend their money next.
Beyond Amazon KDP Free Promotions
Amazon isn’t the only platform offering promotional tools. Draft2Digital, Smashwords, and other distributors have their own promotional programs. If you’re wide (publishing on multiple platforms), you can run coordinated campaigns across all your retailers.
Don’t put all your marketing eggs in Amazon’s basket. Free promotions are one tool among many. Build a sustainable marketing system that doesn’t depend entirely on Amazon’s promotional features.
The goal isn’t just more downloads — it’s building a readership that will support your writing career for years to come.
