There are a plethora of tax write-offs available to real estate investors.  They aren’t quite so generous for those with a high income, but they still exist.  As a general rule, rental income tends to be a lot more stable than many kinds of income.  And sometimes, properties even appreciate allowing for significant capital gains.  Just remember that compared to a stock/bond portfolio, rental real estate tends to be more of a second job than an investment, even if a property manager is involved.
Here’s the truth: a successful business is something that successfully solves a problem. And that business can make more money in two ways: solving more people’s problems, or solving bigger problems. The cool thing about the EP Model is that sometimes these products don’t even have to be yours. You can generate income by recommending other people’s or companies’ services or products. This is called affiliate marketing. It’s actually how I’ve made most of my money since I started in 2008.
Additional income not only provides peace of mind, but it also means you need less money to retire on.  If your side business provides you $3000 a month, and you need $7000 a month to live on in retirement, you may be able to retire 5 or 10 years earlier than you otherwise might.  Instead of a $2.1 Million portfolio, you may only need $1.2 Million.  This, of course, assumes you’re willing to keep running the side business.
Vanguard: Vanguard has a minimum of $50,000 and a fee of 0.3%. Rebalancing is done automatically once every quarter and tax loss harvesting is done on a client-by-client basis. We included Vanguard because clients who invest between $50,000-$500,000 have access to a team of financial advisors. Those with accounts over $500,000 will have a dedicated advisor.
Managerial accounting defines residual income in a corporate setting as the amount of leftover operating profit after all costs of capital used to generate the revenues have been paid. It is also considered the company's net operating income or the amount of profit that exceed its required rate of return. Residual income is normally used to assess the performance of a capital investment, team, department or business unit.