Now, how do you do it? Building a passive income will require some work up front, but choosing a method that plays to your strengths will yield the most success, and it can even become a fun hobby! Have an aptitude for photography? License your photos to stock photography websites. Or maybe you’ve always wanted to invest? Learn how with a robo-advisor. No matter what your strengths are, we’ve gathered 35 ideas for different ways you can generate passive income and build your wealth.

In equity valuation, residual income represents an economic earnings stream and valuation method for estimating the intrinsic value of a company's common stock. The residual income valuation model values a company as the sum of book value and the present value of expected future residual income. Residual income attempts to measure economic profit, which is the profit remaining after the deduction of opportunity costs for all sources of capital.