Passive income is income that continues after the initial work is done, but almost every passive stream requires either upfront time, upfront money, or both.

Ideas that need under $100 to start include selling a digital template or guide, print-on-demand designs, affiliate content on a blog or channel, and dividend investing with fractional shares.

The honest timeline is months, not days: most successful side streams earn little in the first three months and grow only with consistent content or product improvements.

Pick one idea, use skills you already have, and reinvest early earnings rather than chasing five ideas at once.