The Author Break-Even Calculator
The Author Break-Even Calculator
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Know When Your Investment Pays Off.
You paid for the editing. The cover. The formatting. Maybe advertising, audio production, or a launch campaign.
But has the book actually paid for itself yet?
The Author Break-Even Calculator is a simple interactive Excel workbook that helps indie authors compare what they’ve invested in a book, series, or launch with what it has earned—and see exactly where they stand.
Enter your costs and revenue, and the calculator automatically shows you:
- Break-even revenue
- Current profit or loss
- Current ROI
- Percentage of your investment recovered
- Revenue still needed to reach break-even
- Revenue earned above break-even
Go One Step Further
The included Scenario Planner helps translate your remaining break-even gap into an estimated number of additional sales or readers based on your average net revenue.
Because knowing “I still need to earn $1,200” is useful.
Knowing approximately what it could take to close that gap is even more useful.
More Than a Calculator
Reaching break-even answers one question:
Have I earned my investment back?
It doesn’t necessarily answer another:
Was this a good investment?
Built by an indie author and statistics professor, The Author Break-Even Calculator includes plain-language guidance to help you understand what the numbers mean—not simply calculate them.
What You’ll Receive
1 downloadable interactive Microsoft Excel workbook (.xlsx) containing:
- Break-Even Calculator
- Scenario Planner
- Built-in instructions
- Sample data
- Plain-language interpretation of your results
No advanced Excel or statistics knowledge required. Replace the sample figures with your own numbers and the workbook does the calculations for you.
Please note: This is a business-management and decision-support tool. It is not accounting, tax, or financial-advisory software.

About Nellie H. Steele
Nellie H. Steele is an award-winning author of mysteries, romances, and adventures filled with unforgettable characters who often steal the pen right out of her hand. A lifelong bookworm and animal lover, she now spends her days surrounded by rescue pets while crafting twisty mysteries and soap-opera-style romances that keep readers hooked until the very last page. Escape into her books today—you just might find your next favorite character.