Montana lien deadlines for your job.
Pick your role. Enter your first and last day. See every deadline, with the statute.
Next: Record your lien
Thu, Jan 28, 2027. Montana, sub.
Not legal advice. Public jobs take a bond claim, not a lien. Check the statute or a lawyer before you count on a date.
Montana lien deadlines by role
| Role | Preliminary notice | Record the lien |
|---|---|---|
| GC (contract with the owner) | None on a typical job | 90 days after your last day on the job Mont. Code § 71-3-535 |
| Subcontractor | Notice of right to claim a lien: 20 days after your first day on the job | 90 days after your last day on the job Mont. Code § 71-3-535 |
| Supplier | Notice of right to claim a lien: 20 days after your first day on the job | 90 days after your last day on the job Mont. Code § 71-3-535 |
Enforce it
Sue to enforce the lien: see the dates the tool works out above; (Mont. Code § 71-3-562)
This is not legal advice. Lien deadlines are strict and they change with the contract, the type of project (a home vs. a commercial job), and what the owner records. Public jobs don't take liens at all: you make a bond claim instead. Check the statute we cite, or call a construction lawyer in that state, before you count on a date. Main statute: Mont. Code §§ 71-3-521 to 71-3-562.
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Dozer keeps every job's dates in one place and reminds you before each one. Your first and last day come from the site record, not memory.
- Preliminary notice, lien and suit dates per job
- Reminders a week and a day before
- Waivers matched to each payment
- First and last day from the gate camera
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Questions crews ask
What is the deadline to file a mechanics lien in Montana?
A GC records it 90 days after your last day on the job. A subcontractor or supplier records it 90 days after your last day on the job. It can be shorter if 90 days after the owner records a notice of completion. (Mont. Code § 71-3-535).
Do I need a preliminary notice in Montana?
Subcontractor: Notice of right to claim a lien: 20 days after your first day on the job. Supplier: Notice of right to claim a lien: 20 days after your first day on the job.
How long do I have to enforce a lien in Montana?
24 months after you record the lien. (Mont. Code § 71-3-562).
Can I put a lien on a public project in Montana?
No. Public property can't be liened. On a public job you make a claim on the contractor's payment bond instead, under the state's Little Miller Act (or the federal Miller Act on federal work), with its own notice deadlines.
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