KKR Real Estate Finance Trust Inc. operates as a mortgage real estate investment trust (REIT), primarily focused on originating and acquiring senior debt instruments backed by commercial real estate (CRE) assets. The company's investment portfolio also encompasses a variety of other CRE-related credit products, including diverse forms of commercial mortgage loans (both leveraged and unleveraged) and commercial mortgage-backed securities. Having opted for REIT tax treatment, it avoids federal corporate income tax obligations as long as it distributes at least 90% of its taxable earnings to its stockholders.