A lien is a legal claim against a property that secures payment of a debt or obligation — from a mortgage to an unpaid contractor’s bill to an association’s unpaid dues. Real estate closings involve dozens of lien types, and the distinction that matters most is whether each one is recorded and discoverable, or unrecorded and easy to miss.nd to end, here’s how Rexera’s AI agents work. 

Who can hold a lien, and what makes it valid

A lien attaches to a specific property — or, less often, to everything a debtor owns — and gives the lienholder a legal claim against it until the underlying debt or obligation is satisfied. Lenders, contractors, courts, government agencies, and homeowners associations can all hold one. What separates the lien types that matter at closing from the ones that don’t isn’t really about who’s holding the claim. It’s two questions: is it recorded, and is it voluntary or forced on the owner. Both determine how easily your team can find it, and how much trouble it causes if you don’t. 

How lien types differ 

Every lien type on this page sits somewhere on three axes: recorded or unrecorded, voluntary or involuntary, and priority relative to other liens on the same property. The table below sorts every common lien type against the first two. Priority gets its own section further down — it deserves more room than a single column can give it. 

The complete lien type reference 

Lien Type	Recorded / Unrecorded	Voluntary / Involuntary	What Triggers It	What It Does to a Closing
Primary mortgage lien	Recorded	Voluntary	Buyer takes out a purchase-money mortgage	Highest-priority lien; must be satisfied before title transfers clean
Second mortgage / HELOC	Recorded	Voluntary	Owner borrows against equity after the first mortgage	Subordinate to the first mortgage; still must be satisfied at closing
Federal tax lien	Recorded, once the IRS files a Notice of Federal Tax Lien	Involuntary	Unpaid federal tax debt after assessment and demand	Surfaces in a standard title search; needs release, discharge, or subordination before clear title passes
State tax lien	Recorded	Involuntary	Unpaid state tax debt	Same mechanics as federal; procedure and timelines vary by state
Local (property) tax lien	Public record via the tax roll — not a separately recorded instrument, but openly searchable	Involuntary	Unpaid property (or, in some jurisdictions, local income) tax	Distinct from the unrecorded municipal obligations a lien search targets; typically caught by a standard title search
Corporate franchise tax lien	Recorded	Involuntary	A business entity’s unpaid state franchise tax	Relevant when the seller is a business entity, not an individual
Mechanic’s / materialman’s lien	Recorded once filed — often after an unrecorded pre-lien notice window	Involuntary	Unpaid contractor, subcontractor, or supplier for work or materials	Can attach even if the owner already paid the general contractor; in many states can also relate back in priority to when work began, not when it was filed
Judgment lien (incl. attachment lien)	Recorded once the abstract of judgment is filed	Involuntary	A court judgment against the owner for an unrelated debt	Attaches to real property the debtor owns in that county; an attachment lien is the pre-judgment version, filed to freeze the property during litigation
HOA / COA assessment lien	Varies by state — many recognize the lien automatically under the recorded CC&Rs before any separate claim of lien is filed	Involuntary	Unpaid regular or special assessments	Can block closing until satisfied; a current estoppel matters more than a title search here, since the lien may predate any county filing
Vendor’s lien / vendee’s lien	Often unrecorded — arises from the financing or sale agreement itself	Voluntary	Seller-financed sale (vendor’s) or buyer’s partial payment without transferred title (vendee’s)	Easy to miss because there’s frequently no county filing to search against
UCC lien / fixture filing	Almost always unrecorded against the property — the fixture filing is the one exception, recorded locally	Voluntary	A security interest in goods that become fixtures (HVAC, solar, built-in equipment), financed separately from the property	The fixture filing surfaces in a standard recorder search; the underlying UCC-1 on the seller entity generally does not — it follows the debtor’s formation state, not the property
Environmental lien	Recorded once filed — though the underlying cleanup obligation can attach before that filing	Involuntary	Government-funded environmental cleanup or remediation on the property	Can attach after the responsible party changes hands; relevant on any site with a known contamination history
Worker’s compensation lien	Recorded once filed as a judgment	Involuntary	Unpaid workers’ comp benefits owed by the property owner	Personal obligation of the owner that can reach their real property
Lis pendens	Recorded by definition — it is itself a recorded notice	N/A — a notice, not a debt-security lien	Pending litigation involving the property	Warns buyers and lenders off; title typically won’t close clean until the litigation resolves
Other judgment-related liens (child support/alimony, bail bond, small claims, attorney’s)	Typically recorded once filed as a judgment	Involuntary	Court-ordered obligations unrelated to the property itself	Rare in a typical residential closing, but each behaves like any other judgment lien once filed

For a sense of how often these obligations actually turn up across real transactions, see Rexera’s Municipal Lien Search Report. 

Mortgage liens 

A primary mortgage lien is the most common lien your team will encounter, and the most straightforward: the buyer takes on a purchase-money loan, the lender records the mortgage (or, in some states, a deed of trust) at the county, and that lien holds first priority over almost everything that comes after it. A second mortgage or home equity line of credit works the same way procedurally — recorded, voluntary — but it sits behind the first mortgage in the payoff line. At closing, both need a payoff statement and a release, whichever lender holds each one. 

Tax liens, and where “municipal” actually fits 

Three different governments can put a tax lien on the same property, and they don’t behave identically. 

A federal tax lien attaches when a property owner owes the IRS and doesn’t pay after assessment and demand. The IRS makes this recorded and discoverable by filing a public Notice of Federal Tax Lien once that balance goes unpaid — which is exactly why a federal tax lien shows up in a standard title search rather than a municipal lien search. A state tax lien works the same way, filed with whichever office the state designates, though timelines and release procedures vary by state. 

Local tax liens are a different animal, and this is where two closely related but distinct categories on this site actually connect. Local tax liens are imposed by counties or municipalities for unpaid property taxes and, in some jurisdictions, local income taxes. They attach automatically each cycle and live on the public tax roll rather than as a separately recorded instrument — but they’re still openly searchable, which is why a standard title search catches them. That’s different from the municipal obligations a municipal lien search targets: unpaid utility balances, code enforcement violations, and special assessments, which usually aren’t on any public roll at all until someone asks the right office directly. If a file needs that direct-inquiry search rather than the taxonomy on this page, Rexera’s unrecorded lien search is built for exactly that gap. 

A corporate franchise tax lien is the one type here that targets a business rather than a person — relevant whenever a seller is an entity rather than an individual, since unpaid state franchise tax attaches to the business’s assets, including any real property it holds. 

The exception that proves the rule: the federal estate tax lien (IRC § 6324) 

Most liens on this page need somebody to file something before they attach to a property. The federal estate tax lien doesn’t. 

Under 26 U.S.C. § 6324, it attaches automatically to a decedent’s real property the moment they die, if the estate owes federal estate tax — no Notice of Federal Tax Lien, no county filing, no public record of any kind. Title examiners call it a secret lien for exactly that reason. 

That’s why an estate sale routinely asks for evidence the lien has been released, or an IRS closing letter, before closing can proceed — there’s no recorded instrument to point to instead. For a closer working an estate-related transaction, this is the clearest real-world example of why unrecorded doesn’t mean rare or minor. It means invisible until someone asks the right question. 

Construction and mechanic’s liens 

A mechanic’s or materialman’s lien secures payment for a contractor, subcontractor, or supplier who did work or provided materials and wasn’t paid. The uncomfortable detail for a closing team: in many states, including under Florida’s Construction Lien Law, a contractor can record a claim of lien well after the work was done, following a pre-lien notice period that isn’t recorded anywhere itself. A property can look clean in a same-day record search and still be exposed to a lien filed next week for work finished last month. 

It gets sharper than a timing gap, though. In most states, a mechanic’s lien filed after closing can relate back in priority to the date the work began, not the date it was recorded — meaning a claim that didn’t even exist yet on closing day can end up outranking liens that were already sitting on record. Texas Property Code Chapter 53 sets out one state’s version of the filing windows and relation-back mechanics; both are statutory and vary, so recent renovation or repair history is worth asking about directly on any file — the record won’t always tell you, and when it does, the priority date might predate the filing. 

Judgment liens and lis pendens 

A judgment lien attaches once a creditor wins a lawsuit against the property owner and records the judgment against real property the owner holds in that county. It isn’t tied to the property itself the way a mortgage or mechanic’s lien is, so it can show up against a seller for a debt that has nothing to do with the house. An attachment lien is the pre-judgment version: a court freezes the property while litigation is pending, before any judgment has been entered, specifically so the outcome doesn’t get complicated by a sale in the meantime. 

“Your team discovered the lien and let us know so we were able to get the payoff statement. We were also able to revisit the research and find the recorded lien. This is a huge win for us — so thank you for all you do!” 

— Lori, Escrow Support Supervisor 

A lis pendens isn’t technically a lien at all — it’s a recorded notice that litigation involving the property is pending — but it does the same practical job: it warns off buyers and lenders, and title typically won’t close clean until the underlying case resolves. 

HOA and COA liens 

An HOA or COA lien secures unpaid regular or special assessments, and it’s the lien type most likely to catch a title & escrow team off guard, for one specific reason: in roughly 20 states, HOA and condo association assessment liens carry limited “super lien” priority — meaning a capped portion of what’s owed (commonly six to nine months of assessments, depending on the state) can jump ahead of even a first mortgage in the payoff order. Colorado’s version caps it at six months’ worth of common expense assessments. More broadly, many states recognize the underlying lien automatically under the recorded CC&Rs the moment an assessment goes unpaid — before the association ever files a separate claim of lien. That means a title search performed the week before closing can be clean, and the property can still owe the association money that becomes a lien days later. 

A current HOA estoppel is worth more here than a fresh title search, because the estoppel reflects what’s actually owed today rather than what happened to get filed. Homeward’s team stopped losing sleep over exactly this problem once they had a reliable way to get current HOA documents ahead of closing rather than after. 

Vendor’s and vendee’s liens 

A vendor’s lien shows up when a seller finances the sale directly and keeps a legal interest in the property until the buyer pays it off. A vendee’s lien runs the other way, protecting a buyer who’s made a partial payment but hasn’t received title yet. Both are less common than a mortgage, and both carry a real gap for a closing team: unlike a recorded mortgage, they often arise from the financing or sale agreement itself rather than a county filing. Don’t assume either one behaves like a mortgage lien on record — confirm the recording status state by state. 

UCC liens and fixture filings 

A UCC lien, formally a UCC-1 financing statement, doesn’t normally belong on a real-property taxonomy at all. It secures a lender’s interest in a debtor’s personal property — equipment, inventory, accounts receivable — not real estate. There’s one exception worth knowing, because it’s exactly the kind of thing a clean records search can miss: the fixture filing. When a security interest attaches to goods that become fixtures — HVAC systems, solar installations, built-in commercial equipment — the filing is recorded locally in the real property records, exactly like a mortgage or a mechanic’s lien, and it can surface in the same recorder search. 

Everything else about a UCC-1 follows the debtor, not the property. For a registered entity, that means the state where it was formed, which is frequently not the state where the property sits — a Delaware LLC selling a house in Texas has its general UCC filings in Delaware, not Texas. UCC Article 9’s place-of-filing rules set out the framework. A seller-owned solar array or a financed HVAC system is exactly the asset class where this distinction matters in practice: the property closing can be entirely clean and the equipment attached to it still financed. 

Environmental and worker’s compensation liens 

An environmental lien secures a government agency’s cost of cleaning up contamination on a property, and — similar to the estate tax lien above — the underlying cleanup obligation can predate the lien’s actual filing, which matters most on sites with any known contamination history. A worker’s compensation lien is a personal obligation of the property owner for unpaid workers’ comp benefits, recorded once it’s filed as a judgment. It’s rare in a residential closing, but it does reach real property the owner holds. 

Other judgment-related liens 

A handful of narrower judgment-related liens round out the taxonomy: liens for unpaid child support or alimony, liens securing a bail bond, small claims judgments, and attorney’s liens for unpaid legal fees. Each behaves like any other judgment lien once it’s filed — recorded, involuntary, and attached to whatever real property the debtor owns in that county. They show up rarely in a typical residential closing, but rarely isn’t the same as never, and each one is discoverable the same way a larger judgment lien would be. 

General liens vs. specific liens 

A specific lien attaches to one particular asset — a mortgage only reaches the house it financed, and a mechanic’s lien only reaches the property that was improved. A general lien reaches everything the debtor owns: a judgment lien or an unpaid federal tax lien can attach to real estate, vehicles, and other assets all at once, which is exactly why a general lien is more likely to follow a seller from a past problem that has nothing to do with the current property. 

Voluntary vs. involuntary liens 

A voluntary lien is one the owner agreed to — a mortgage is the standard example, since the borrower accepted the lien as a condition of the loan. An involuntary lien is imposed without the owner’s consent: tax liens, judgment liens, and mechanic’s liens all fall here, arising from a debt or obligation rather than an agreement. The practical difference at closing is that voluntary liens are almost always expected and already accounted for in the transaction; involuntary liens are the ones that show up as a surprise. 

Lien priority: first, second, and subsequent 

When more than one lien sits on a property, priority decides who gets paid first out of the sale or foreclosure proceeds — and it’s usually, though not always, decided by recording date. A first lien, typically the primary mortgage, gets paid before anything else. A second lien, like a HELOC, gets what’s left after the first is satisfied. Everything else — tax liens, judgment liens, HOA liens — gets paid in whatever order its own priority rules and recording date put it in, and some statutory liens, tax liens especially, can jump ahead of liens that were recorded earlier. 

Two lien types on this page break the plain first-in-time rule outright, and it’s worth holding them side by side. HOA super liens, described above, jump the line by statute, capped and state-specific. A mechanic’s lien can jump it by doctrine: its priority date relates back to when the work began, not when the lien was recorded, so a claim that wasn’t even filed yet on closing day can still end up ahead of something already on record. Priority is the reason a title & escrow team needs the complete list, not just the largest lien: a small lien with high priority can hold up a closing as effectively as a large one with low priority. 

Recorded vs. unrecorded liens: the distinction that decides what a search catches 

Recorded liens are filed with the county — typically the recorder’s office — and become part of the public record the moment they’re filed. That public filing is what makes them discoverable: a title search is built to find exactly this kind of instrument, and priority usually runs from the recording date. 

Unrecorded liens don’t work that way. Some, like the federal estate tax lien above, never get recorded at all. Others, like a mechanic’s lien in its pre-filing notice window, a vendor’s lien tied to a private financing agreement, or a UCC-1 covering the seller entity generally, exist before, instead of, or entirely separate from a county filing. ALTA’s Best Practices framework is explicit that title insurance is built around insurable risk tied to the record — which is exactly why an unrecorded lien may not be covered the way a recorded one would be. Some of the same record-keeping gaps that make errors in public property records possible are exactly why certain liens go unrecorded in the first place: the county’s record is only as complete as what actually got filed. 

None of that makes a title search the wrong tool — it makes it an incomplete one. Agents working a closing should still run a thorough title search to catch every recorded instrument. For the ones that won’t be on that record, here’s more on how to find a lien on a property.

This taxonomy is the reference. For the parts of it Rexera actually automates — the unrecorded municipal obligations, the HOA estoppels, the payoff statements — Rexera works alongside title and escrow teams inside the systems you already use. If you’d rather see how that runs end to end, here’s how Rexera’s AI agents work.

Want to see what a complete municipal lien report looks like on one of your files? Book a demo or email sales@rexera.com. 

Disclaimer:
This article is provided for informational purposes only and does not constitute legal advice. For interpretation of specific laws or legal obligations, consult qualified legal counsel.