7 Zero-Cost Passive Income Secrets That Could Make You Rich While You Sleep

3. Self-Publish eBooks

Have a story to tell or knowledge to share? Self-publishing eBooks can be a great way to generate passive income while showcasing your expertise.

How it works:

• Write an eBook on a topic you’re knowledgeable about
• Format your eBook using free tools like Calibre
• Publish your eBook on platforms like Amazon Kindle Direct Publishing
• Market your eBook through social media and your network

Real-life example:
Lisa, a personal finance expert, self-published an eBook on budgeting for millennials. She now earns $1,200 per month in royalties, with minimal ongoing effort.

Tips for getting started:

• Choose a topic with high demand and low competition
• Create a compelling cover using free tools like Canva
• Price your eBook competitively
• Encourage reviews from early readers to boost credibility

Potential earnings: $100 – $5,000+ per month

Affiliate program to check out: BookBaby (affiliate link)