Free tool
Mechanic's Lien Deadline Calculator
Pick the project's state, enter the last day of furnishing, and get the filing deadline to the day, with the notice rules that go with it.
The state where the project sits, not where your office is.
The claimant's actual last day on the job. Not the invoice date, not project completion (unless the rule says so).
North Carolina filing deadline
All claimants
Mon, Nov 2, 2026
120 days left to file
120 days from last furnishing.
Full waiver and lien rules for this state: North Carolina lien waiver guide.
Math runs in your browser. Nothing is sent to a server. Deadlines are computed from the statutory windows summarized in our state guides and can change when statutes change. This is general information, not legal advice. Confirm the current statute or talk to a construction attorney before relying on a date.
How lien filing deadlines work
A mechanic's lien is only as good as its timing. Every state gives claimants a fixed window, usually 60 days to 6 months, to record the lien after their last day of furnishing labor or materials. Inside the window, the lien attaches to the property and gets the owner's and lender's attention. Outside it, the claim is just an unpaid invoice.
The trap is the trigger. The clock almost never starts on the invoice date or the payment due date. It starts on the last day you actually furnished work, which for a sub who demobilized in March and did a punch-list visit in May is a genuinely contested question. Some states add wrinkles: Virginia counts from the end of the month worked, Ohio and Indiana run shorter windows on residential projects, and several states split the window by claimant tier.
This calculator covers the 25 states where the deadline runs cleanly from the last-furnishing date. For states where the window depends on other triggers (a recorded notice of completion, the claimant's contract tier), it points you to the state guide instead of guessing.
Reading the deadline from the GC's side of the table
Subs and suppliers use this date as a filing deadline. GCs should use it as a risk horizon. Every sub who hasn't signed a waiver is a live lien risk until their state's window closes. A drywaller who finished in March and a painter who finished in May have different expiration dates on the same project, and the project isn't clean until the last one lapses.
The cheaper alternative to tracking expiration dates is closing each one early: a signed conditional waiver with every pay app, an unconditional waiver once the check clears. A sub with a signed unconditional waiver on file isn't a lien risk no matter how many days are left on their window. That's the loop lien waiver software exists to run.
Frequently asked questions
What is a mechanic's lien filing deadline?
Every state gives contractors, subcontractors, and suppliers a fixed window to record a mechanic's lien after their work on a project ends. The window ranges from 30 days (Alabama day laborers) to 6 months (Wisconsin, Kentucky, Pennsylvania GCs). File inside the window and the lien attaches to the property. Miss it and the lien right is gone, no matter how much is owed.
When does the lien deadline clock start?
In most states, from the claimant's last day of furnishing labor or materials to the project. Not the invoice date, not the payment due date. A few states run from a different trigger: Virginia counts from the last day of the month in which work was performed, New Mexico's original-contractor window runs from project completion, and Montana's clock can start early if a Notice of Completion is filed.
What happens if I miss the lien filing deadline?
The lien right expires. You can still sue on the contract for the unpaid balance, but you lose the security interest in the property, which is the pressure that makes owners and lenders pay attention. Late liens get struck, and in some states filing a known-invalid lien creates liability for the filer.
Why doesn't the calculator show a date for California, Texas, or Florida?
Because a single date computed from one input would be wrong too often. In those states the window depends on statutory triggers such as a recorded notice of completion, the claimant's tier, or the project type. Rather than show a number that's right only sometimes, we link you to the state guide that walks through the actual rules. Our state guides cover the waiver forms and lien rules for all 50 states.
Do preliminary notices change the deadline?
They don't usually move the filing deadline, but missing one can kill the lien before the deadline matters. Washington sub-tier claimants must give a Notice to Owner within 60 days of first furnishing. Oklahoma requires a pre-lien notice within 75 days of last furnishing. Illinois subcontractors have to serve a 90-day notice of intent. The calculator lists the notice rules we cover next to each state's deadline.
Does filing the lien get me paid?
Filing preserves the claim; it doesn't collect it. Most states then require an enforcement (foreclosure) suit within a further window: Colorado gives 6 months from last work, New Jersey gives one year from filing. In practice, most liens settle before enforcement because the owner needs clear title for the lender or a sale. The paper trail that avoids all of this is a signed waiver for every payment.
Close the lien risk before the deadline matters
A signed waiver beats a calendar reminder. LienDone sends the right statutory form, your sub signs it on their phone in two minutes, and the signed PDF lands in your dashboard before the check goes out.
LienDone Inc.. Lien waivers signed in minutes, not weeks.