How to File a Mechanics Lien in Minnesota
Step 1 — Confirm you have lien rights in Minnesota
Minnesota's recorded rules cover general contractors, subcontractors and suppliers (Minn. Stat. § 514.011). Each of those roles has its own filing window — see Step 3. Minnesota rule detail: REQUIRED: Serve 'Pre-Lien Notice' on owner within 45 days of first furnishing. No notice = lien for only the last 45 days of work.
Step 2 — Send the Minnesota preliminary notice
Minnesota requires a preliminary notice 45 days, pre-lien notice (Minn. Stat. § 514.08). It is a precondition, not a formality. It must reach County Recorder and Owner and GC and Surety AND Contractor, at their addresses as stated in the bond and Prime Contractor and Contractor (personally liable). Delivery: Certified Mail, Return Receipt Requested, Personal service or Certified Mail. Minnesota rule detail: Prime must file lien statement within 120 days of last furnishing of labor or materials.
Step 3 — Your Minnesota filing deadline
Minnesota sets the window by claimant role: • General contractors: within 120 days of your last day of work or materials. • Subcontractors and suppliers: within 120 days of your last day of work or materials. The clock runs from last date of furnishing — not your invoice date. Punch-list and warranty callbacks generally do not restart it. Minnesota rule detail: File lien statement within 120 days of last furnishing. Must have served Pre-Lien Notice first.
Step 4 — Prepare and record the lien in Minnesota
Record in the county where the property sits, under Minn. Stat. § 514.12. The document must identify the property, the owner of record, the amount actually owed, and what you furnished. Overstating the amount can void the claim outright. Minnesota rule detail: File suit to enforce lien within 1 year of recording.
Step 5 — Serve the recorded Minnesota lien
Minnesota requires service on County Recorder and Owner and GC and Surety AND Contractor, at their addresses as stated in the bond and Prime Contractor and Contractor (personally liable). Use Certified Mail, Return Receipt Requested or Personal service or Certified Mail and keep the receipt. In many states an unserved lien is unenforceable even though it appears on title. Minnesota rule detail: Written notice of claim within 120 DAYS after the claimant's completion, delivery, or provision of its LAST item of labor and materials, served personally or by certified mail on the SURETY that issued the bond AND the CONTRACTOR on whose behalf it was issued, at their addresses as stated in the bond, specifying the nature and amount of the claim and the date of the last item. It applies to EVERY claimant, including first-tier subcontractors with a direct contract with the prime. The statute supplies a notice form. Exception (subd. 2(b)): if the contractor failed to include both addresses in the bond as 574.28 requires, no notice is required. Bonds required on public contracts at or above the 471.345 subd. 3 amount ($175,000); penal sum not less than the contract price (state agencies may fix it at not less than three-quarters) under 574.26. No lien on public property in Minnesota. Minnesota has no statutory stop notice or withholding remedy on public work.
Step 6 — Enforce before the Minnesota deadline expires
You must sue to foreclose within 1 year (filing) (Minn. Stat. § 574.31, subd. 2(a)). Miss it and the lien expires and title clears, leaving only a contract claim. Minnesota rule detail: Action against the surety must be commenced within 1 YEAR from the claimant's completion, delivery, or provision of its last item of labor and materials (574.31 subd. 2(c)). Extendable only by written stipulation executed before the year runs, or by a certified-mail notice to the surety sent 90 days before the deadline extending it by one year, which the surety does not object to by certified mail within 30 days of receipt (subd. 2(d)).
Retainage rules that affect your Minnesota claim
Minnesota treats retainage on its own schedule (Minn. Stat. § 15.72), so money still held back may have a different due date than your progress billings. Minnesota rule detail: Second-tier claimants only. No notice = no bond claim.
Other Minnesota requirements that void liens
• File no sooner than 90 days AND no later than 1 year. • Public: prime must pay sub within 10 days of receiving payment from owner. Interest at 1.5%/month on late public payments. • Retainage released within 60 days of substantial completion on public contracts. 5% maximum retainage. • Public prompt payment: prime must pay sub within 10 days of receiving payment from public owner. Interest at 1.5%/month on late public payments.
Frequently Asked Questions
How long do I have to file a mechanics lien in Minnesota?
Minnesota requires the lien to be recorded within 120 days, measured from last date of furnishing. The exact window depends on your role — general contractors: within 120 days of your last day of work or materials.
Do I need to send a preliminary notice before filing in Minnesota?
Yes. Minnesota requires a preliminary notice 45 days (pre-lien notice). Failing to send it on time generally forfeits your lien rights entirely, regardless of how much you are owed.
Where do I file a mechanics lien in Minnesota?
File with the county recorder's office in the county where the property is located. Filing in the wrong county does not preserve your deadline, and re-filing in the correct county after the deadline will not save the claim.
What happens if I miss the Minnesota filing deadline?
Your lien rights are extinguished. Minnesota courts do not grant extensions for missed mechanics lien deadlines. You would be left with a breach-of-contract claim against whoever hired you, which carries no security interest in the property and is far harder to collect.
How long does a mechanics lien last in Minnesota?
Once recorded, you must file suit to enforce within 1 year (filing). If you do not, the lien expires automatically and no longer clouds the property's title.