Payment & collections

Mechanics Lien Deadline Calculator

California expresses the lien recording deadline as the earlier of two dates, not as a ninety-day window that a recorded notice replaces. That distinction changes the answer on a common fact pattern, so this tool shows both candidate dates and the rule that selects between them.

Payment & collections

How this works

Civil Code section 8412 lets a direct contractor record after completing the direct contract and before the earlier of ninety days after completion of the work of improvement or sixty days after the owner records a notice of completion or cessation. Section 8414 is parallel for every other claimant, with thirty days in place of sixty.

Because the deadline is the earlier of the two dates, a notice recorded late does not extend anything. If an owner records on day eighty-five, sixty days from that is day one hundred forty-five — later than the ninety-day limit, so the ninety-day limit still governs. The shortening only bites where the notice is recorded early enough that its own window closes first.

The statute also sets the earliest date on which a claim of lien may be recorded, so the tool returns a window rather than a single date. Where an input cannot support a reliable answer — an uncertain completion date, a notice whose validity is unknown, a public works project — it declines to compute and says why.

The tool

1. What kind of project is it?
2. What is your statutory role?

Ask who you contracted with, not who signed the paperwork. A supplier who contracted directly with the owner is still not a direct contractor for Civil Code section 8412.

3. Preliminary notice

Civil Code section 8200 makes preliminary notice a prerequisite to a valid lien claim where it is required. Section 8204 sets 20 days after first furnishing work.

4. When did you finish?

A direct contractor may not record until the direct contract is complete. Any other claimant may not record until it has ceased to provide work. Recording too early is its own defect.

5. Completion of the work of improvement

Completion is a legal term under Civil Code section 8180. It includes actual completion, occupation or use by the owner coupled with cessation of labour, and a cessation of labour for a continuous 60-day period. A stalled project can reach completion without anyone declaring it finished.

6. Notice of completion or cessation
7. Has a claim of lien already been recorded?

This tool runs entirely in your browser. Nothing you type is stored, sent, or logged.

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If this describes your situation, an attorney affiliated with Bay Legal PC, CA Bar No. 332479, can review it with you.