How to collect unpaid invoices in Minnesota: construction lien, one-party consent, and Conciliation Court

Minnesota's electronic surveillance statute (Minn. Stat. §626A.02) prohibits interception of wire, oral, or electronic communications without the consent of at least one party. The caller's own participation satisfies the one-party consent requirement. Minnesota businesses and AI collection tools operating on their behalf can record outbound calls without disclosing the recording to the customer. Verbal disclosure at the start of the call is common practice and reduces any question about the nature of the contact.

Minnesota's mechanic's lien statute (Minn. Stat. §514.01 et seq.) has a pre-lien notice requirement that catches many out-of-state contractors off guard. Any person who is not in direct contract with the property owner -- subcontractors, suppliers, second-tier parties -- must serve a written notice on the owner within 10 days of first furnishing labor or materials (Minn. Stat. §514.011). This pre-lien notice must include the claimant's name, address, and a description of the work or materials being furnished. Miss the 10-day window and lien rights are forfeited for work performed before the owner receives actual notice.

The lien claim itself must be filed with the court administrator in the county where the property is located within 120 days after the last item of labor or materials was furnished (Minn. Stat. §514.08). For a subcontractor who last worked on September 15, the lien must be filed by January 13. The 120-day window is one of the more generous timelines in the Midwest, giving contractors time to attempt first-party collection before escalating to a lien. An action to foreclose the lien must be brought within 1 year of the date the lien was filed.

Minnesota Conciliation Court (Minn. Stat. §491A.01 et seq.) handles civil claims up to $15,000. Filing fees are $70 to $100. Hearings are typically scheduled within 30 to 45 days. Businesses may be represented by a principal, officer, or regular employee -- not by outside counsel in most conciliation proceedings. For claims between $15,000 and $50,000, the District Court civil docket applies and attorney representation becomes standard. Minnesota courts allow judgment creditors to collect through wage garnishment, bank levies, and lien on real property.

Minnesota's statute of limitations on written contracts is 6 years (Minn. Stat. §541.05, subd. 1(1)). Oral contracts also carry a 6-year limit under the same statute. The clock runs from when the cause of action accrued -- when the invoice was due and payment was refused. Minnesota courts have held that the limitations period is not tolled by continued negotiations or partial payments unless those actions reset the accrual date under the acknowledgment doctrine. For service businesses, this means following up early and documenting every contact attempt.