Senior property claim that usually gives the main mortgage lender first position against the home.
A first lien is the senior property claim that stands ahead of other liens against the home, usually the main mortgage used to buy or refinance the property.
First-lien status matters because the lender in first position has the strongest mortgage claim against the property. That position affects risk, pricing, refinance requirements, and how other liens are handled.
Borrowers often hear the term when comparing a regular first mortgage with a Second Mortgage, Home Equity Line of Credit (HELOC), or First-Lien HELOC. The product name matters, but the lien position can matter just as much.
First-lien language appears in loan disclosures, title review, refinance conditions, and home-equity discussions. A lender may ask whether another claim already exists and whether the new loan will be first, junior, or dependent on a subordination document.
The concept also appears when an old first mortgage is paid off. The old lien must be released so a new first lien can stand cleanly in the expected position.
| Term | Borrower-facing meaning |
|---|---|
| First lien | The senior claim against the property |
| Junior Lien | A claim behind the first lien |
| Lien Priority | The order that decides which claim stands first or behind |
| First-Lien HELOC | A revolving credit line that occupies first-lien position |
A buyer finances a home with one main mortgage. That mortgage is recorded as the senior claim against the property. If the borrower later adds a HELOC, the original mortgage is usually still the first lien and the HELOC is junior.
First lien differs from Lien because lien is the general property claim, while first lien describes the senior position of that claim.
It differs from Junior Lien because a junior lien stands behind another claim in priority.
It also differs from First-Lien HELOC. First lien is the priority position. First-lien HELOC is one product structure that can occupy that position.