Primary mortgage loan on a property, usually tied to the first lien position.
A first mortgage is the primary mortgage loan on a property, usually tied to the first lien position.
First mortgage matters because many borrower decisions revolve around whether the existing primary loan stays in place, gets refinanced, or is joined by a second-lien product. A borrower cannot compare home-equity options clearly without knowing which loan is the first mortgage.
It also matters because lien priority affects risk, pricing, refinance coordination, and what must be paid first if the property is sold or foreclosed.
Borrowers encounter first-mortgage language when buying a home, refinancing, adding a home-equity loan or HELOC, or reviewing title and lien priority.
The term becomes practical when a borrower compares a Cash-Out Refinance with a Second Mortgage or home-equity line.
| Term | Borrower-facing distinction |
|---|---|
| First mortgage | Primary mortgage loan secured by the property |
| First Lien | Priority position of the secured claim |
| Second Mortgage | Additional mortgage usually behind the first lien |
| Cash-Out Refinance | New first mortgage that replaces the old one and may provide cash |
A homeowner has a regular purchase mortgage and later opens a HELOC. The original mortgage is typically the first mortgage, while the HELOC is commonly a junior lien or second mortgage.
First mortgage differs from First Lien because first mortgage describes the loan, while first lien describes the priority position of the claim.
It differs from Second Mortgage because a second mortgage is an additional loan that usually sits behind the first mortgage.
It also differs from Refinance because a refinance may replace the first mortgage rather than simply add another loan alongside it.