Section 8(a) of the Real Estate Settlement Procedures Act (RESPA) strictly prohibits giving or accepting any fee, kickback, or thing of value in exchange for the referral of settlement service business related to a federally related mortgage loan.

“No person shall give and no person shall accept any fee, kickback or thing of value pursuant to any agreement or understanding, oral or otherwise, that business incident to or a part of a real estate settlement service involving a federally related mortgage loan shall be referred to any person.”

— 12 U.S.C. § 2607(a); 12 CFR § 1024.14(b), Regulation X

This means it is illegal for a mortgage loan originator (MLO) to pay a real estate agent for referring clients, regardless of client notification, consent, or limitation to business expenses. Minor items of minimal value (e.g., pens, promotional items) may be allowed if not given in exchange for referrals, but any compensation for referrals is a prohibited kickback.