The Real Estate Encyclopedia & Blog

Underlying Financing

by | Feb 15, 2026

In real estate finance, underlying financing refers to an existing mortgage, deed of trust, or contract that remains in place when new security instruments are created on the same property. It represents prior financing that has not been paid off or replaced.

Underlying financing often exists in transactions involving secondary financing, wraparound loans, or property sales subject to an existing loan. The rights and priority of the underlying lender are generally superior to those of any later security interests.