A first mortgage is the home loan that holds the senior recorded claim against a property, meaning its lender stands ahead of every other voluntary lienholder if the home is ever sold or foreclosed on. The word “first” has nothing to do with the size of the loan or whether it was the first mortgage you personally ever took out. It refers to position in line, and that position is set by when the mortgage documents were recorded in the county land records.
Most first mortgages are the loan you used to buy the house. Because that loan is recorded at closing, before you’ve had a chance to borrow against the home for anything else, it naturally lands in the top spot on the title. Everything you borrow against the property after that sits behind it.
Why Recording Order Decides Everything
Property law sorts competing claims against real estate using one rule: first in time, first in right. Whichever lender gets its mortgage documents to the county recorder’s office earliest holds the senior position over every claim recorded later. The clerk stamps each filing with a date and time, and that timestamp is what locks in priority.
A title search before closing typically turns up multiple recorded interests against a property, including prior mortgages, easements, and judgment liens. The timestamps sort them into a hierarchy that governs who gets paid first if the property is sold under financial pressure. Lenders check these filings carefully before issuing a loan, because an undisclosed senior lien ahead of theirs means they are the ones left absorbing the loss if the borrower defaults.
How Second Mortgages and HELOCs Fit In
Once you own the home, any new loan you take against your equity is recorded after the original purchase loan. That makes it a junior lien. A home equity line of credit (HELOC) and a traditional second mortgage are the most common examples.
Junior lenders know their claim sits behind the first mortgage, which is why second mortgages and home equity products carry higher interest rates than purchase loans. The junior lender is accepting more risk. If the home’s value drops or a foreclosure happens, they only get paid after the senior lienholder takes its full share, and in many foreclosures that leaves nothing behind.
When a First Mortgage Can Get Outranked
First-in-time has exceptions. A few types of claims leap ahead of a recorded first mortgage by operation of law, no matter when they were filed. These are often called super-priority liens.
Property Tax Liens
Unpaid property taxes generate a lien that jumps ahead of every other claim on the home, including the first mortgage. This is true in virtually every state. Local governments need to collect taxes to fund services and are not expected to search title records before asserting a claim. If property taxes go unpaid long enough, the taxing authority can force a sale that wipes out the first mortgage entirely.
HOA and Condo Association Liens
In roughly 20 states, homeowners’ association and condominium association liens enjoy a limited super-priority status. When an owner falls behind on assessments, the association’s lien can jump ahead of the first mortgage, but usually only for a fixed number of months of unpaid dues rather than the entire debt. The super-priority portion is often capped at six to nine months of overdue assessments, and the specifics vary by state. Outside of super-lien states, HOA liens still exist but sit behind the first mortgage in the normal priority order.
Federal Tax Liens
A federal tax lien works a little differently. The IRS lien arises automatically when someone owes back taxes, but it does not beat a previously recorded first mortgage unless the IRS files a Notice of Federal Tax Lien before the mortgage is recorded. Under federal law, a security interest that is already perfected, like a recorded first mortgage, takes priority over a later-filed federal tax lien. The mortgage lender’s protected costs, including interest and reasonable foreclosure expenses, share that same priority.1Office of the Law Revision Counsel. 26 U.S. Code 6323 – Validity and Priority Against Certain Persons For open-ended credit, the rules tighten: if you have a HELOC and the IRS files a tax lien, any new draws on that line made more than 45 days after the filing lose their protected status.2Internal Revenue Service. 5.17.2 Federal Tax Liens
What First Position Actually Gets You in a Foreclosure
When a borrower defaults, the first mortgage holder can force a sale of the property through either a judicial foreclosure (handled by the courts) or a nonjudicial foreclosure (conducted by a trustee under a power-of-sale clause in the deed of trust, where state law allows). The proceeds from that sale follow the priority ladder. Senior claims get paid before junior ones, with no exceptions.
The first mortgage lender collects its full outstanding balance, including accrued interest and foreclosure costs, before anyone else sees a dollar. If the home sells for $400,000 and the first mortgage balance is $350,000, that lender is paid in full. The remaining $50,000 then goes to junior lienholders in the order their claims were recorded. The homeowner only receives anything if every recorded lien is satisfied, which rarely happens in a foreclosure.
More often, the sale price doesn’t cover all debts. Junior lienholders frequently walk away with nothing. The risk of being wiped out in foreclosure is baked into the higher rates on second mortgages and HELOCs from the start.
What Happens to Lien Position When You Refinance
Refinancing creates a priority problem that catches homeowners off guard. When you refinance, the original first mortgage is paid off and a brand-new loan is recorded in its place. Under normal first-in-time rules, that new recording would slot in behind any junior liens already on the property. Suddenly your HELOC would be the senior lien, and your new mortgage would be junior. No lender will accept that.
The fix is a subordination agreement. The junior lienholder, usually the bank behind your HELOC, signs a document agreeing to stay in second position behind the new mortgage. Without that agreement, the refinance typically cannot close. Some junior lenders refuse to subordinate or drag their feet on the paperwork, and that is one of the more common delays in a refinance. If your HELOC lender will not cooperate, you may need to pay off that line entirely before the refinance can proceed.
Every refinance also requires a new lender’s title insurance policy. The original policy covered the old loan; once that loan is paid off, the policy expires. The new lender needs its own policy confirming its mortgage sits in first position with no surprise claims lurking in the title history. A lender’s title insurance policy generally runs around 0.5% of the loan balance, so on a $300,000 refinance you might pay roughly $1,500. Some title companies offer a “reissue rate” discount if you refinance within a few years of your original purchase.
Why Your First-Mortgage Lender Requires an Escrow Account
Most first-mortgage lenders require borrowers to maintain an escrow account where a portion of each monthly payment is set aside to cover property taxes and homeowner’s insurance. The lender then pays those bills directly when they come due. This is self-preservation on the lender’s part. Because unpaid property taxes create a super-priority lien that can wipe out the first mortgage, controlling the tax payments protects the lender’s own position.
Federal rules under Regulation X cap how much a lender can collect. The servicer can require monthly deposits equal to one-twelfth of the estimated annual tax and insurance costs, plus a cushion of no more than one-sixth of the total annual escrow disbursements.3Consumer Financial Protection Bureau. Regulation X 1024.17 Escrow Accounts If your lender is demanding more than that, they are exceeding the federal limit. The servicer must also perform an annual escrow analysis and refund any surplus over $50 within 30 days.