CONSTRUCTION LAW CALCULATORS

Mechanic's Lien Deadline Calculator — United States

Enter your last furnishing date and state deadline window to calculate the last day to record your mechanic's lien.

The last date you provided labor or materials to the project.
Select the recording window that applies in your state. Verify the exact statutory period.

Enter your details to see results

Disclaimer: Mechanic's lien deadlines and preliminary-notice requirements vary significantly by state and by your role on the project. Verify your exact deadline — this is not legal advice.

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Frequently Asked Questions

How long do I have to file a mechanic's lien?
It depends on your state. Common deadlines run 60, 90 or 120 days from the date you last furnished labor or materials to the project. For example, California generally requires recording within 90 days of completion (or 60 days after a notice of completion). Always confirm your state's exact period.
What is a preliminary notice and why does it matter?
A preliminary (or pre-lien) notice is a written notice sent early in the project — often within 20 days of first furnishing — that preserves your right to later file a lien. In many states, failing to serve the preliminary notice bars your lien entirely, even if you record within the filing deadline.
Do subcontractors and suppliers have different deadlines?
Often yes. Many states set different notice and filing deadlines depending on whether you are the prime (general) contractor, a subcontractor, or a material supplier. Suppliers frequently have shorter notice windows. Check the rule for your specific role.
What happens if I miss the mechanic's lien deadline?
If you miss the recording deadline your lien rights are lost, though you may still pursue a breach-of-contract claim or a bond claim on a bonded or federal (Miller Act) project. Lien deadlines are strict and generally not extendable.

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