Illegal fee splitting occurs when a fee is divided among multiple parties and at least one party does not perform any actual work or service to earn the fee. Under RESPA (Real Estate Settlement Procedures Act), Section 8 prohibits fee splitting, kickbacks, and unearned fees in any federally related mortgage loan transaction. If three companies split a fee, but one company did no work, this would constitute an illegal fee split.

Fee splitting (A, C) can be legal if all parties involved provide legitimate services.