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Mechanics lien deadline calculator

Pick your state, your role and your dates to see your preliminary notice and mechanics lien filing deadlines on a private construction project. Miss a lien deadline and you usually lose the right to file a lien for good, so file early.

Not legal advice. Lien deadlines depend on your role, the type of project and its paperwork, and laws change. Confirm your dates with a construction attorney in your state before relying on them.
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How it's calculated

Each state's rules come from its lien statute (cited with the result) and count from your first day of work, your last day of work, the project's completion or a recorded notice of completion. The dates shown are calendar days; when a deadline lands on a weekend or holiday, don't count on an extra day.

Questions

What is a mechanics lien?

A legal claim against a property by a contractor, subcontractor or supplier who wasn't paid for work or materials on it. It can stop the property from being sold or refinanced until you're paid.

What is a preliminary notice?

A notice sent early in the job to the owner (and often the general contractor and lender) saying you're working on the project and have lien rights. Many states require it before you can file a lien, especially for subcontractors and suppliers.

What happens if I miss the lien deadline?

In most states you lose your lien rights on that project for good. You can still sue for payment under your contract, but without the security of the lien.

Does this cover public projects?

No. Public projects usually can't be liened; payment bond claims have their own deadlines. This calculator covers private projects only.

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