The Chartered Financial Analyst (CFA) Institute categorizes real estate as an alternative investment that includes residential and commercial properties as well as mortgage-based securities and real estate investment trusts. For most real estate investors, these investments are characterized as income-generating properties that see revenue from rent earned and capital appreciation from the increase in market value. Since this investment vehicle depends on the net operating income (NOI), maximizing cash flow is key to a successful real estate investment.

Property Valuation 

To fully understand the importance of cash flow to real estate investment, it is necessary to know that the value of the property is directly linked to the NOI. Unlike residential homes that get their value from comparable sales, income-generating real estate value is calculated as the annual NOI multiplied by an industry standard rate of return, called the capitalization rate. For instance, if the property has an annual NOI of $100,000 and a 10 percent capitalization rate, then the property would be valued at one million dollars. Since NOI is calculated after expenses and both property value and return on investment are depended on NOI, it is important to maximize income and minimize expense.