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Mechanics Lien Deadlines in Wisconsin

In Wisconsin, a lien claim must be filed within 6 months after the claimant last furnished labor or materials, after a 30-day notice of intent to the owner; preliminary notices are required on most smaller residential projects (prime contractors within 10 days, others within 60 days of first furnishing); and a foreclosure action must be brought within 2 years after filing the claim.

Last checked . General information, not legal advice.

Wisconsin at a glance

Deadline to record lien
6 months after last work or materials
6 months from the last labor, services, materials, plans or specifications. A notice of intent to file must be served on the owner at least 30 days before filing.
Preliminary notice required
Yes in some cases (most residential projects)
Prime contractors give the owner notice in the contract or within 10 days of first work; others within 60 days of first furnishing. Not required for nonresidential projects or residential projects adding more than 4 units.
Deadline to enforce lien
2 years after filing the claim

Sources

Last checked

The rules in Wisconsin

How long does a contractor have to file a mechanics lien in Wisconsin?

Deadline to record lien in Wisconsin: 6 months after last work or materials. 6 months from the last labor, services, materials, plans or specifications. A notice of intent to file must be served on the owner at least 30 days before filing.

Is a preliminary notice required before filing a mechanics lien in Wisconsin?

Yes in some cases (most residential projects). Preliminary notice required in Wisconsin: yes in some cases (most residential projects). Prime contractors give the owner notice in the contract or within 10 days of first work; others within 60 days of first furnishing. Not required for nonresidential projects or residential projects adding more than 4 units.

How long do you have to foreclose a mechanics lien in Wisconsin?

Deadline to enforce lien in Wisconsin: 2 years after filing the claim.

Where do the Wisconsin mechanics lien deadlines come from?

The rules above come from Wis. Stat. 779.06 and Wis. Stat. 779.02(2). Each source is linked on this page. We last checked them in October 2026.

What this means in practice

Deadlines often differ by role. The period for a general contractor who dealt directly with the owner can be different from the period for a subcontractor or supplier, and residential projects can have their own rules. Check which category fits before relying on a single number.

The event that starts the clock matters as much as the length of the period. Depending on the statute, it can be the last day labor or materials were furnished, completion of the project, or the recording of a notice of completion or commencement by the owner. Keeping dated records of the last work performed helps establish the start date.

Recording a lien is not the end of the process. If the debt is not paid, the claimant generally has to file a lawsuit to foreclose the lien within the enforcement period, or the lien expires. When the debt is paid, the owner will usually want a signed lien release recorded so the title is clear.

General information, not legal advice. Laws change, and cities can add their own rules, so check the current statute before you rely on it.