LIEN RIGHTS

WHEN TO FILE A MECHANIC'S LIEN.

QUICK ANSWER

A mechanic's lien is the most powerful collection tool a construction subcontractor has, and most never use it correctly or in time. Here is when to file, what the deadlines look like, how the process works, and when to bring in a construction lien attorney to handle it.

Lien rights run on a clock that starts before you know you have a problem. In most states a preliminary notice has to go out within 20 to 30 days of first furnishing work, and the lien itself has to be filed 60 to 120 days after last furnishing, depending on the state. Miss either window and the strongest collection tool you have is gone, however much you're owed. That's why the notice goes out on every job as standard practice rather than only on the jobs that go sideways.

BY JOSH LUEBKERPublished 2026-08-06Updated 2026-08-07
THE DEFINITION

WHAT IT MEANS.

A mechanic's lien is a legal claim recorded against the property you improved, which clouds the owner's title until the unpaid amount gets resolved.

WHAT WE SEE IN THIS BUSINESS

WHERE IT GOES WRONG.

01

You waited too long and lost your lien rights

Lien rights carry strict filing deadlines, typically 60 to 120 days after last furnishing labor or materials depending on the state. Most subcontractors wait until the collection problem is obvious before thinking about a lien, and by then the deadline has passed. A lien right you can't use is worth nothing at all.

02

You don't know the deadlines in your state

Lien law is state specific. California has different rules than Texas. Florida has different rules than New York. Preliminary notice requirements, filing windows, and enforcement timelines all differ. Without knowing your own state's deadlines you're guessing, and guessing wrong on lien rights means absorbing the loss yourself.

03

You don't know how to file or what it costs

Most subcontractors know liens exist and have never filed one. The process, meaning preliminary notice, lien filing, and enforcement, carries specific requirements and costs that most contractors have never researched until the week they urgently need one. That's the worst week to start learning.

HOW THE PROCESS RUNS

THREE STEPS, AND THREE CLOCKS.

Step 1, the preliminary notice

In most states a preliminary notice must be sent within 20 to 30 days of first furnishing work, and sending it preserves your right to lien later. Miss that window and you may lose all lien rights regardless of how much you're owed. It's the cheapest document in the whole process and the one most subcontractors skip.

Step 2, the lien filing

When payment is overdue and escalation hasn't worked, file the lien before the deadline, typically 60 to 120 days after last furnishing depending on state. The filing is what turns your unpaid invoice into the owner's problem, because the lien clouds their title. Filing is a business decision, and it should be made on the calendar rather than on how the last phone call went.

Step 3, enforcement

A filed lien must be enforced within a specific timeframe, typically 6 to 12 months, or it expires. Enforcement means filing a lawsuit to foreclose on the lien. Most disputes settle well before that, which is the point: the credible threat of enforcement is what moves money, and it's only credible if the filing was done correctly.

When to bring in a construction lien attorney

SPM connects clients to a vetted construction lien firm when collections reach the lien stage. That firm handles preliminary notices, lien filings, and enforcement in the states where SPM clients work. A construction attorney sending the demand and filing the lien changes the GC's response in a way a subcontractor sending emails doesn't. It's an additional cost and it's not included in the SPM monthly fee.

Proactive lien rights preservation

The best lien strategy runs automatically: preliminary notices sent on every project as standard practice, not only when a GC goes slow. SPM works with the lien firm to put a preliminary notice program in place for clients who want lien rights preserved on every project from day one. It costs almost nothing per job and it keeps every option open.

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COMMON QUESTIONS

FREQUENTLY ASKED.

No, but it creates significant pressure. A mechanic's lien clouds the property title, which stops the owner from selling or refinancing until the lien is resolved. That puts real pressure on both the owner and the GC to resolve the dispute. Most liens filed by construction attorneys resolve without going to court.
Not directly, because you can't lien government owned property. On public projects the equivalent remedy is a claim on the payment bond, the Miller Act for federal projects and Little Miller Act equivalents for state projects. A construction lien firm handles bond claims as well as private property liens.
Three tiers, and which one you are in depends on how much of the work you want off your desk. Core is where you stop guessing: job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a monthly meeting that ends in decisions, while your bookkeeper keeps doing the books. Executive is where you stop touching the books, because we run the bookkeeping and the controllership as well. Strategic is where every job shows its margin while it is still running, because the job costing and WIP platform is set up and managed for you. No payroll. No scope gaps.
Sixty days. We migrate your books back to the start of your last taxable year, set up ControlQore, and build your job costing structure from scratch. Fully operational in two months.
WHAT THIS TIES INTO
Josh Luebker, The Construction CFO
Josh Luebker
FRACTIONAL CFO · THE CONSTRUCTION CFO

Former commercial project manager and master electrician: 150+ projects worth $2.1B combined, from $50,000 to $300M. Now fractional CFO to commercial subcontractors.

DO YOU KNOW YOUR FILING DEADLINE ON YOUR OLDEST UNPAID INVOICE?

Bring your AR aging and the state each job is in. We will tell you which invoices still have lien rights and which ones already ran out of clock.

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