Subordination Agreement: What It Is and When a Mortgage Needs One
A subordination agreement changes which lien on a property is paid first. See when lenders ask for one, how it is recorded, and how to find it in county records.
Quick answer
A subordination agreement is a signed and usually recorded document in which the holder of a lien agrees that another lien will rank ahead of it. On a home it most often moves a second mortgage or home equity line behind a new first mortgage during a refinance. The debt itself does not change; only the order of repayment does.
What is a subordination agreement?
A standard legal reference defines it as "a contract that guarantees senior debt will be paid before other subordinated debt if the debtor becomes bankrupt" . In real estate the same idea applies to liens on a property: a mortgage, a home equity line of credit, a judgment or a tax lien. Each one has a place in line, and a subordination agreement moves one of them back.
The party that steps back is the subordinating lender or lienholder. The party that moves ahead is usually a new lender that will not make its loan unless it holds first position. The property owner normally signs or consents too, and the finished agreement is recorded in the county land records next to the mortgages it affects.
People also call it a subordination letter or loan subordination. Strictly, the letter is often the lender's approval of the request, and the agreement is the recorded document that does the work.
Definition
Subordination agreement — An agreement by which a creditor accepts that its claim against a debtor or a property ranks below another claim, so the other claim is paid first.
Why lien order matters
When there is not enough money to pay every lien, for example after a sale that brings less than the debts, the senior lien is paid first and the junior liens take what is left. That is why a lender cares more about its position than about the size of the loans behind it.
Position usually follows recording. State recording acts protect the documents that are recorded in the county records; an unrecorded mortgage loses out against later buyers and creditors. Florida's law is typical: no conveyance, transfer or mortgage "shall be good and effectual in law or equity against creditors or subsequent purchasers for a valuable consideration and without notice, unless the same be recorded according to law" (Fla. Stat. 695.01).
So a home equity line recorded in 2021 sits ahead of a refinance mortgage recorded in 2026, even though the refinance pays off the original first mortgage. The only way to put the new loan in front is for the earlier lienholder to agree to step back. Priority can be rearranged by contract: the Uniform Commercial Code says, for personal property, "This article does not preclude subordination by agreement by a person entitled to priority." (UCC 9-339). Real property works the same way through the recorded agreement.
When a subordination agreement is needed
Refinancing a first mortgage while a second loan stays open
This is the most common case. Fannie Mae, whose Selling Guide sets the rules for the first-lien loans it buys, states: "If subordinate financing is left in place in connection with a first mortgage refinance transaction, Fannie Mae requires execution and recordation of a resubordination agreement." It adds that where state law keeps the second lien in its old position automatically, resubordination is not required.
Taking a new first mortgage behind an existing equity line
The new first mortgage lender asks the equity line lender to sign a subordination so that the new loan is recorded and ranked in first position. Until that agreement is signed and recorded, the earlier equity line keeps its place.
A federal tax lien on the property
The IRS can issue a certificate of subordination so that a new loan ranks ahead of its lien, for example when the loan proceeds help pay the tax. The rules are in 26 U.S.C. 6325(d), described below.
Commercial and construction lending
Subordination is not limited to home loans. A lease can be subordinated to a mortgage, and New York City records a subordination of lease as its own document type.
Subordinating a federal tax lien
A recorded federal tax lien can stand in the way of a refinance, because a new lender will not want to rank behind it. Congress gave the IRS a specific tool: under 26 U.S.C. 6325(d), the IRS may issue a certificate of subordination when it is paid an amount equal to the lien it steps behind, or when it believes the subordination will increase what it ultimately collects.
The certificate is decisive once issued. The statute says "in the case of a certificate of subordination, such certificate shall be conclusive that the lien or interest to which the lien of the United States is subordinated is superior to the lien of the United States". The IRS explains how to apply in Publication 784, How to Prepare an Application for a Certificate of Subordination of Federal Tax Lien.
A subordination is not a release. The tax lien stays on the property; it simply ranks behind the named loan. A title search that finds a federal tax lien should therefore look for a recorded release, a discharge of the property, or a certificate of subordination, because each has a different effect.
How often subordinations are recorded: New York City
Subordinations are far rarer than the mortgages they reorder. In New York City's recording system, a subordination of mortgage has its own document code (SUBM). Counting the city's recorded documents for one year shows the scale:
| Document type (NYC code) | Recorded in NYC, Oct 1, 2025 to Sep 30, 2026 |
|---|---|
| Mortgage (MTGE) | 46,288 |
| Satisfaction of mortgage (SAT) | 41,299 |
| Subordination of mortgage (SUBM) | 361 |
| Subordination of lease (SUBL) | 1 |
What the numbers suggest
That is fewer than one subordination for every hundred mortgages recorded. Satisfactions run close to mortgages, which fits refinances that pay the old loans off, leaving no lien to move. A subordination appears when a second loan survives, and it is easy to miss: it is a separate document, recorded on its own date, and its parties are the lenders as much as the owner.
The city's document code list also shows a separate UCC3 subordination (SUBO) for fixture filings.
A subordination does not pay anything off
How to find a subordination agreement in the records
- Search the county recorder or clerk index by the owner name and the lender names on each mortgage.
- Look for document types such as subordination, subordination agreement or subordination of mortgage.
- Check that the agreement names both loans by recording date and book and page or instrument number.
- Read the date order: the subordination is recorded with or soon after the new first mortgage.
- Confirm that the subordinating lender is the current holder, following any recorded assignments of mortgage.
What a title search shows, and what it does not
A title search reads the recorded mortgages, assignments, releases and agreements on a parcel in date order, which is exactly what you need to see whether a subordination exists and which loan it moved. HeritageDeed's automated reports ($49) list the recorded mortgages on a property and match each one to its recorded release where one exists.
A title search is not title insurance and not legal advice. Whether a particular subordination is valid, or whether state law kept a second lien in place without one, is a question for the lender's title insurer or an attorney.
Key takeaways
Key takeaways
- A subordination agreement changes the order in which liens are paid, not the amount owed.
- Recording order usually sets priority, so an earlier second loan stays ahead unless it subordinates.
- Fannie Mae requires a recorded resubordination agreement when a second loan stays through a refinance.
- The IRS can subordinate a federal tax lien by certificate under 26 U.S.C. 6325(d).
- In NYC, 361 subordinations of mortgage were recorded against 46,288 mortgages in the year to September 2026.
Frequently asked questions
- What is the purpose of a subordination agreement?
- It lets a new lender take first position ahead of an existing lien. Without it, the earlier recorded lien would usually stay senior. That matters because many loans must be first liens: Fannie Mae, for example, purchases or securitizes first-lien loans.
- Is a subordination letter the same as a subordination agreement?
- Not quite. A subordination letter is usually the existing lender approving the request. The subordination agreement is the signed document, normally recorded in the county records, that actually changes the order of the liens.
- Do I need a subordination agreement to refinance with a HELOC?
- Usually yes, if the home equity line stays open. Fannie Mae requires a recorded resubordination agreement when subordinate financing is left in place in a first mortgage refinance, unless state law keeps the second lien in its old position automatically.
- Does a subordination agreement have to be recorded?
- It should be. Priority against later buyers and creditors depends on the public record, and Fannie Mae requires recordation for resubordination agreements on the loans it buys.
- Can the IRS subordinate a federal tax lien?
- Yes. Under 26 U.S.C. 6325(d) the IRS may issue a certificate of subordination, for example when it is paid the amount of the lien it steps behind or when subordination will increase what it collects. IRS Publication 784 explains how to apply.
- Does subordination remove a lien from the title?
- No. The subordinated lien remains on the property and the debt is still owed. Only a recorded release or satisfaction removes the lien.
Legal references
Statutes and rules cited in this article.
- 126 U.S. Code 6325: Release of lien or discharge of property
- 2Fla. Stat. 695.01, Conveyances and liens to be recorded
Cite this guide
APA
HeritageDeed. (2026, October 22). Subordination Agreement: What It Is and When a Mortgage Needs One. https://heritagedeed.com/blog/subordination-agreement
MLA
“Subordination Agreement: What It Is and When a Mortgage Needs One.” HeritageDeed, October 22, 2026, heritagedeed.com/blog/subordination-agreement.
Link (HTML)
<a href="https://heritagedeed.com/blog/subordination-agreement">Subordination Agreement: What It Is and When a Mortgage Needs One</a> (HeritageDeed)HeritageDeed provides public-record search reports only. Reports do not constitute title insurance, an attorney opinion of title, or a title insurance commitment.
