Depreciation and cost segregation studies can be used to increase the tax efficiency of a real estate investment. Depreciation is a tax deduction that allows real estate investors to recover the cost of an income-producing property over a set period (e.g., 27.5 years for multifamily buildings), reducing taxable income without affecting cash flow.

Depreciation is a non-cash expense that lowers the taxable income from a rental property, allowing investors to keep more of their income.
For passive investors, depreciation can offset passive income (e.g., rental income) by generating passive losses, reducing or eliminating taxes on that income. If the amount, of losses exceeds the income generating by the property generating the losses, the overflow losses can be used
By reducing taxable income now, depreciation defers taxes until the property is sold, potentially allowing investors to reinvest more capital in the meantime.
Investors can use cost segregation to accelerate depreciation on certain property components (e.g., fixtures, landscaping), increasing deductions in early years.