Recent Mechanic’s Lien Law Changes Every Subcontractor Should Know

A mechanic's lien is the most consequential leverage subcontractors have when a general contractor (GC) or owner stops paying. It clouds the title, blocks a sale or refinance, and puts real pressure on the party holding your money. But that leverage only exists if you preserve it, and preserving it depends on a chain of deadlines: a preliminary notice at the start of the job, sometimes a notice of intent before you can file, the lien filing itself, and a separate deadline to enforce it in court. Miss one link, and the entire chain breaks.

State lien laws change all the time, but every so often the changes materially affect how subcontractors preserve or enforce their lien rights. Going back to 2023, a handful of states have done exactly that: extending filing deadlines, adjusting lien priority protections, changing how notices can be delivered, and clarifying what happens when a claimant waits too long to enforce.

Here's what's changed recently, state by state, and what it means for how you protect your right to get paid.

Recent Mechanic’s Lien Reforms by State

Every change below has been signed into law or decided by a state's highest court, and each one alters how lien rights apply to construction teams working in those jurisdictions.

New Mexico (effective June 16, 2023)

In 2023, New Mexico enacted HB 179, a new post-filing notice requirement. It amended N.M. Stat. § 48-2-6 to require lien claimants to send the property owner a copy of the filed lien claim within 15 days of recording it. Notice may be sent by mail, email, certified mail, or hand delivery.

Failing to send that notice doesn't void the lien itself, but it can prevent the claimant from recovering interest, attorney's fees, and costs on top of the underlying claim. It's a simple requirement, but an easy one to overlook—especially because filing the lien itself often feels like the last step.

Source: Levelset: New Mexico House Bill 179

Florida (effective October 1, 2023)

HB 331 (Chapter 2023-244), signed June 12, 2023, made two changes worth knowing:

1. In Florida, an owner can record a Notice of Termination to formally end the Notice of Commencement (a.k.a. close out the project). If filed, lienors generally have 30 days after the Notice of Termination takes effect to record a claim of lien (assuming their work was performed before termination), rather than relying on the normal 90-day period after their final furnishing. Previously, an owner could record it without telling you, which meant your window could shrink without warning. Now they have to serve that notice on you first if you have a direct contract or sent a preliminary notice (§713.132(5)).
2. Separately, the minimum bond an owner must post to remove your lien from a property's title jumped from $1,000 to $5,000 (§713.24(1)(b)), making it a bit costlier for them to bond you off the job while a dispute plays out.

Neither of these is dramatic, but the first does raise the complexity bar for filing a valid lien.

Source: Cozen O'Connor: New Amendments to Florida's Construction Lien Law

Illinois (effective January 1, 2025) 

Illinois modernized how subcontractors can deliver the 90-day notice required under Section 24 of the Mechanics Lien Act. Public Act 103-0827 (HB 4660) expands the approved delivery methods beyond certified mail:

• Any nationally recognized carrier offering tracking service (like FedEx, UPS, and DHL, in addition to USPS certified mail and personal service) is now a valid delivery method.
• The old "restricted delivery, addressee only" requirement on certified mail is gone; any authorized person at the address can now accept the notice on the recipient's behalf.
• Notice is deemed served the day it's placed with the carrier, not the day it's received, which matters when a notice goes out close to the 90-day deadline.

The 90-day deadline itself didn't change, but proving you served it on time got considerably easier.

Source: Levelset: Changes to Illinois Mechanics Lien Laws

Texas (effective May 21, 2025)

SB 929 made two changes to Chapter 53 of the Texas Property Code, the law governing lien rights on private construction there:

• Deadline extension: Under the amended §53.003(e), any Chapter 53 notice or filing deadline that falls on a Saturday, Sunday, or legal holiday—including the notoriously tricky 15th-of-the-month notice deadlines—now automatically extends to the next business day.
• Lien inception for design professionals: Under the amended §53.124(e), for architects, engineers, surveyors, landscape contractors, and demolition contractors, the date a lien "begins" for priority purposes is now the date the lien affidavit is recorded, removing prior ambiguity about when those claimants' rights actually attached.

Both are precision fixes, but the added clarity should help reduce disputes over Texas deadlines and lien priority.

Source: Texas Legislature: SB 929 enrolled bill text

Iowa (effective July 1, 2026)

Iowa's lien enforcement window on public projects has always been narrow: a claimant generally has to file suit within 30 to 60 days of final acceptance under Iowa Code §573.16. The problem was knowing when that clock actually started. SF 2365 fixes that by requiring public owners to send written notice of final project acceptance within 14 calendar days to the principal contractor, the surety, and any claimant who has filed a Chapter 573 claim.

It doesn't change the enforcement deadline itself, but it removes the guesswork that used to make that deadline so easy to blow past.

Source: Iowa Legislature: SF 2365 bill history

Colorado (effective August 12, 2026)

SB26-074 clarifies what happens when a lien or public bond claim is filed for more than a claimant is ultimately owed:

1. It aligns the "excessive claim" penalty standard between private mechanic's liens (which already forfeit rights only when a claimant knowingly overstates the amount due) and public verified statements of claim (VSOC), so public claimants forfeit rights only if they knowingly claimed an excessive amount, not simply because they claimed too much.
2. It expressly allows delay, lost productivity, and other contract-permitted disruption costs to be included in a lien or VSOC amount, even if those costs are disputed.
3. It clarifies that a court awarding less than the amount claimed doesn't automatically make the claim "excessive"; good-faith basis at the time of filing is the standard.

This closes off a defense GCs and owners have used to try to invalidate liens outright: arguing that any gap between the claimed amount and the final award proves the lien was excessive.

Source: Colorado General Assembly: SB26-074 bill page

How to Better Protect Your Mechanic’s Lien Rights

None of this matters if lien deadlines are something you figure out after a payment problem starts. Lien rights are preserved or lost well before that point. Here's how to put these changes to work.

1. Build lien deadlines into pre-contract review.

Preliminary notices, notices of intent, filing deadlines, and enforcement deadlines are almost always tied to project activity, like when you first or last furnish labor or materials, not to whether an invoice is overdue. Know your state's lien deadlines before the job starts, the same way you'd confirm insurance requirements, so you're not scrambling to figure them out once a GC stops answering emails.

2. Document the date that starts the statutory clock. 

Whatever event triggers your deadline—first furnishing, substantial completion, or final acceptance—write it down the moment it happens and confirm it in writing with the GC or owner. Iowa's new 14-day acceptance notice exists precisely because that date is often invisible to claimants until it's too late; don't rely on someone else to tell you when your clock started.

3. Know that filing a lien is not the finish line.

Filing a lien is really the beginning of a second set of deadlines. As New Mexico demonstrated, states continue to refine what happens after a lien is filed—not just before. Every state also has its own deadline for enforcing a lien, and those clocks don't stop just because negotiations are ongoing. 

Arizona's recent ruling is also a reminder that waiting too long to enforce a lien can now cost you the lien itself, not just your negotiating leverage. Build a simple post-filing checklist, and treat your enforcement deadline with the same urgency as your filing deadline.

4. Keep every notice and form current.

Several of these changes weren't about whether a subcontractor had lien rights, but rather about how those rights had to be exercised. States continue updating approved delivery methods, required notices, statutory forms, and service requirements. Don't assume the notice template or mailing process you've used for years is still compliant. Review your lien forms periodically, and whenever you begin work in a new state, confirm you're using the current statutory requirements.

5. Track lien deadlines with a system, not a spreadsheet.

The tips above only work if every notice, filing, and enforcement deadline is actually tracked. Yet 56% of subcontractors told us they missed a critical lien deadline in the past two years, according to Siteline's 2026 State of Subcontractor Billing Report. That's a strong signal that manual systems—spreadsheets, calendar reminders, and long email threads—simply aren't enough for managing lien rights across dozens of active projects.

Siteline brings your lien rights into the same workflow as the rest of your billing process. Instead of tracking deadlines in separate spreadsheets or relying on memory, teams can see state-specific notice, filing, and enforcement deadlines alongside their pay apps, compliance requirements, lien waivers, and collections. Automated reminders surface upcoming deadlines before they become emergencies, helping ensure payment leverage isn't lost to an avoidable administrative miss.

The Big Picture on Mechanic’s Liens

Mechanic's liens remain one of the strongest payment protections available to subcontractors. What's changing is how states expect those rights to be preserved and enforced. As the states here have demonstrated, legislatures and courts continue refining the rules—from how notices are delivered to what happens after a lien is filed.

The takeaway isn't that lien rights are becoming harder to use. It's that they're becoming harder to manage manually. The subcontractors best positioned to protect their cash flow won't be the ones trying to memorize every statutory change; they'll be the ones with reliable processes and systems that keep every deadline, notice, and filing on track.

Want to see how Siteline helps subcontractors manage lien rights alongside billing, compliance, and collections? We'd love to show you.

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Frequently Asked Questions About Mechanic’s Liens

How long do you have to file a mechanic’s lien?

It depends on the state, but most set the deadline somewhere between 60 and 120 days after your last date of furnishing labor or materials—not the date your invoice went unpaid. That distinction trips up a lot of subcontractors: the statutory clock is tied to project activity, so it can run out even while you're still waiting on payment or negotiating. In short, always check your state's specific lien deadlines before the job starts, jot down the date, and start the clock the moment it happens.

What happens after you file a mechanic’s lien?

Filing a mechanic's lien isn't the last step. Every state gives you a limited amount of time to enforce the lien by filing a lawsuit, and if you miss that deadline, the lien expires. Some states also require additional post-filing steps, such as sending the property owner a copy of the recorded lien, so be sure to understand your state's requirements. Learn more about what happens after you file a mechanic's lien here

Do mechanic's liens expire?

Yes. Mechanic's liens remain valid only for a limited period—typically a few months to a year, depending on the state. If you don't enforce the lien before that deadline, it expires and can no longer be used to secure payment. Check the enforcement deadline in each state where you perform work.

What is a preliminary notice, and when do subcontractors need one?

A preliminary notice is a document sent near the beginning of a project to preserve your right to file a mechanic's lien if you're not paid. Many states require subcontractors to send one within a specific timeframe after first furnishing labor or materials. Because deadlines and requirements vary by state, review the preliminary notice requirements for subcontractors before every project.

Can a subcontractor file a mechanic's lien without a contract?

Usually, yes. In most states, subcontractors don't need a direct contract with the property owner to file a mechanic's lien. They simply need to have furnished labor or materials to the project and complied with the state's notice and filing requirements. Learn more about who can file a mechanic's lien in your state.