Passive income is the money you earn that doesn’t require you to do a lot of “active” work to continue making it. Like if you own a house, and you earn money from the rental income. You can earn money from the rental income without working actively.

According to Wikipedia, It is called progressive passive income when the earner expends little effort to grow the income. Programmers have more opportunities than any others to make passive income because of their skills.

Here are the four easy ways:

1. Sell Software for a One-Time Fee

2. Start Blogging

3. Make Video Tutorials

4. Making a SaaS Product

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