Amazon KDP Income Report August 2025: How I Made Over $600 with 14 Books

August 2025 turned out to be one of my best months on Amazon KDP.

With just 14 books (13 live, 1 unpublished), I made over $600 in royalties.

In this post, I’ll break down my Amazon KDP income report: royalties, unit sales, ad spend, and net profit so you get a clear picture of what’s working for me.

Let’s go…

KDP Royalties Breakdown

During August 2025, I made $614.58 in book royalties from 14 math workbooks; 13 are live and 1 is unpublished.

On my best day, I made $42.93, and the lowest day was $3.05. On average, I was making just below $20 per day.

• Best day: $42.93
• Lowest day: $3.05
• Average: just under $20 per day

Now, let’s have a look at total units ordered.

Units Sold in August

I sold 214 units total — an average of 10 books per day. My best day brought in 15 sales, while the slowest day had just 1 sale.

On average, I made 10 sales per day, and I’m quite happy with that.

• Best day: 15 sales
• Lowest day: 1 sale
• Average: 10 sales per day

I’m quite happy with that consistency! Next, let’s check out my ad spend.

My Amazon Ad Spend

Amazon ads are the only marketing channel I use to promote my books and get sales. This is one of the best ways to generate sales, especially for newly released books.

Here is what I spent on Amazon ads last month to generate sales and book royalties:

I spent a total of $309.35 on ads, which brought me 132 orders and over $1,368 in book sales.

• Total Ad Spend: $309.35
• Orders from Ads: 132
• Total Sales Generated: $1,368+

Next, comes the net profit % ROI…

Net Profit & ROI

Here are my net profits for the month of August:

Total Income: $614.54

Ad Spend: $309.35

Net Income/Profit: $305.19

That means I made over $305 in profit with around a 50% profit margin.

Put another way: every time I spend $100 on ads, I get back about $200 in royalties — or $100 in profit. That’s a pretty solid ROI in my books.

Final Thoughts

Overall, August was a great month with steady sales and a healthy return on ad spend.

I plan to keep testing, scaling, and sharing my results as I grow my KDP portfolio.

👉 If you’re thinking of creating similar books, a Math Worksheets Generator can save you hours when designing math workbooks.

And for finding profitable niches, I highly recommend Titans Pro — it’s the exact tool I use to research and validate book ideas.

Thanks for reading my August income report! 🙌

Question for you: Have you tried Amazon KDP before — or are you planning to publish your first book soon? I’d love to hear about your experience in the comments.

👉 If you enjoy behind-the-scenes income reports like this, follow me here on Medium. I regularly share my experiments with KDP, digital products, and passive income.

Talk soon,

Subha

Disclaimer: This post contains affiliate links. If you purchase through them, I may earn a small commission at no extra cost to you.