The thing that costs cases here is built into the system, and it’s the first thing an out-of-state lawyer has to unlearn: in Minnesota, filing a complaint does not commence a civil action, and it does not stop a limitations period. Service does. Show up in Minnesota district court on the last day of a six-year contract limitations period, e-file a complaint, and go home, and you’ve commenced nothing.
Minn. R. Civ. P. 3.01 says it straight out:
A civil action is commenced against each defendant: (a) when the summons is served upon that defendant; or (b) at the date of signing a waiver of service pursuant to Rule 4.05; or (c) when the summons is delivered for service to the sheriff in the county where the defendant resides personally, by U.S. Mail (postage prepaid), by commercial courier with proof of delivery, or by electronic means consented to by the sheriff’s office either in writing or electronically; but such delivery shall be ineffectual unless within 60 days thereafter the summons is actually served on that defendant or the first publication thereof is made.
Three routes, and each one runs defendant by defendant. Commencing against one defendant isn’t commencing against a co-defendant. The sheriff-delivery route in 3.01(c) is the one people grab when a period is about to run, and it has its own trap: delivery to the sheriff holds the date only if actual service or first publication follows within 60 days.
Because the action starts without a court file, the rules put a filing obligation on the back end, and missing it’s fatal. See the one-year filing deadline in Rule 5.04.
What has to be in the summons, and who can serve it?
Rule 4.01 sets what goes in the summons; Rule 4.02 sets who may serve it. The summons must state the name of the court and the names of the parties, be subscribed by the plaintiff or the plaintiff’s attorney, give an address within the United States where the subscriber may be served in person and by mail, state the time within which the rules require the defendant to serve an answer, and notify the defendant that failure to do so results in default judgment for the relief demanded in the complaint. Rule 4.01 was amended effective July 1, 2021. The old requirement of a Minnesota address is gone, and any address in the United States now does it.
A copy of the complaint travels with the summons. Rule 3.02: “A copy of the complaint shall be served with the summons, except when the service is by publication as provided in Rule 4.04.”
On who serves, Rule 4.02 is broader than a lot of states:
Unless otherwise ordered by the court, the sheriff or any other person not less than 18 years of age and not a party to the action, may make service of a summons or other process.
No license requirement in the rule, no court appointment, no age-21 floor. Two things disqualify a server: being under 18, or being a party.
What are the methods of personal service under Rule 4.03?
Rule 4.03 governs service within the state, and it’s organized into five lettered categories: (a) an individual, (b) partnerships and associations subject to suit under a common name, (c) a domestic or foreign corporation, (d) the state, and (e) a municipal or other public corporation.
For an individual, the language is short and every word in it pulls its weight:
Upon an individual by delivering a copy to the individual personally or by leaving a copy at the individual’s usual place of abode with some person of suitable age and discretion then residing therein.
That second clause is Minnesota’s substituted service, and it has three conditions, all of which must hold: the location must be the defendant’s usual place of abode; the person accepting must be of suitable age and discretion; and that person must be then residing therein. A roommate’s visiting friend, a contractor on site, a neighbor who came to the door: none of them satisfies the third condition, and meeting the first two doesn’t excuse the third. Rule 4.03(a) is where bad service most often gets made, and where a motion to dismiss for insufficient service most often wins.
Rule 4.03(a) has three overlays you want to know before you send a server out. If the individual has consented by statute to another method of service or appointed an agent, or if a statute designates a state official to receive service, service may be made in the manner the statute provides. If the individual is confined to a state institution, the chief executive officer at the institution must also be served. If the individual is an infant under the age of 14, a parent must also be served, with a cascade to a resident guardian or the person having control of the defendant if neither parent is in the state. And since amendments effective January 1, 2024, judges and judicial branch employees may be served at their office rather than at home where the complaint relates to their office, employment, or agency.
Rule 4.03(e) lists five recipients for public corporations — county attorney or county board chair; a city, village, or borough’s chief executive officer or clerk; a town board chair or town clerk; a school district board chair; and any member of the governing body of a public board or body not otherwise enumerated. Amendments effective January 1, 2025 changed two of these in ways that will sink a form pulled from an old file: the county auditor was removed and the county attorney substituted in 4.03(e)(1), and 4.03(e)(4) no longer permits service on any member of a school district’s governing body. If service can’t be made as the rule provides, 4.03(e) authorizes the court to direct the manner of service.
When can you serve by publication?
Rule 4.04(a) enumerates five circumstances in which “[s]ervice by publication shall be sufficient to confer jurisdiction,” and the list is exclusive on its face: (1) a resident individual domiciliary who has departed the state with intent to defraud creditors or avoid service, or remains concealed with like intent; (2) where the plaintiff has acquired a lien on property or credits in the state by attachment or garnishment and the defendant is either a resident who has departed or cannot be found, or a nonresident individual or foreign entity; (3) a marriage dissolution or separate maintenance action where the court has ordered published notice; (4) where the subject of the action is real or personal property in the state in or on which the defendant claims a lien or interest; and (5) an action to foreclose a mortgage or enforce a lien on Minnesota real estate.
How it works: three weeks’ published notice, and only after the complaint and a supporting affidavit have been filed with the court. The affidavit has to establish three things — the existence of one of the enumerated cases, the affiant’s belief that the defendant is not a resident or cannot be found in the state, and either that the affiant mailed a copy of the summons to the defendant’s residence or that the residence is unknown to the affiant. “The service of the summons shall be deemed complete 21 days after the first publication.” Personal service outside the state, proved by the server’s affidavit, “shall have the same effect as the published notice provided for herein” (Rule 4.04(b)).
Publication also flips the usual order. The complaint isn’t served with the summons. It goes to the court first, and then to a defendant who appears. Under Rule 4.042, a defendant who appears within 14 days after service by publication is complete must be served the complaint by the plaintiff within 7 days after that appearance, and “[t]he defendant shall then have at least 21 days in which to answer the same.”
Is there still service by mail with acknowledgment?
No. This is the part of Minnesota practice most likely to be wrong in a form file or a secondary source. Rule 4.05 was completely rewritten effective July 1, 2018. It’s now captioned “Waiving Service of Summons,” it’s modeled on the federal waiver procedure, and the old Acknowledgment of Service form is gone. The advisory committee said why:
This rule does not authorize service by mere mailing - it is necessary for the defendant to waive formal service and return the waiver-of-service form. Service is accomplished and proven by the waiver, not the mailing.
Under Rule 4.05(a), a defendant subject to service under 4.03 “has a duty to avoid unnecessary expenses of serving the summons,” and a plaintiff may request a waiver. The request has six requirements: it must be in writing and addressed to the individual defendant (or, for entities served under 4.03(b)–(e), to the agent authorized to receive service); be accompanied by a copy of the complaint, two copies of Form 22B or a substantially similar form, and a prepaid means of returning a signed copy; inform the defendant, using Form 22B or a substantially similar form, of the consequences of waiving and not waiving; state the date the request is sent; give the defendant 30 days after the request was sent — 60 days if sent outside the United States — to return the waiver; and be sent by first-class mail or other reliable means.
What people actually want to know is what happens when the defendant doesn’t send it back. Rule 4.05(b):
If a defendant located within the United States fails, without good cause, to sign and return a waiver requested by a plaintiff located within the United States, the court must impose on the defendant: (1) the expenses later incurred in making service; and (2) the reasonable expenses, including attorney’s fees, of any motion required to collect those service expenses.
Look at the words “must impose” and look at the limits. Not returning the waiver isn’t service. It doesn’t commence the action, it doesn’t start an answer clock, and it doesn’t shift the job of getting the defendant served. It creates a right to shift costs, and only where both the defendant and the plaintiff are located within the United States and the defendant lacked good cause. If the waiver doesn’t come back, you still have to serve under Rule 4.03 or 4.04.
A defendant who does sign gets real time out of it. Rule 4.05(c): “A defendant who, before being served with process, timely returns a signed waiver need not serve an answer to the complaint until 60 days after the request was sent to that defendant - or until 90 days after it was sent to that defendant outside the United States.” Compare the baseline of 21 days after service of the summons under Rule 12.01. And the waiver keeps what a defendant cares about most: “Waiving service of a summons does not waive any objection to personal jurisdiction or to venue” (Rule 4.05(e)).
For the plaintiff, Rule 4.05(d) closes the loop: “When a plaintiff files a waiver of service, proof of service is not required and these rules apply as if a summons and complaint had been served on the date of signing of the waiver.” Read that next to Rule 3.01(b). The commencement date is the signing date. Not the mailing date, and not the filing date.
How is service proved, and what if the proof is defective?
Rule 4.06 separates the fact of service from the paperwork that proves it, and that split saves cases. Service is proved by the certificate of the sheriff or other peace officer, the affidavit of any other server, the written admission or acknowledgment of the party served, or, for publication, the affidavit of the printer or the printer’s designee. Proof of service in all cases other than published notice “shall state the time, place, and manner of service.” Then the sentence that matters: “Failure to make proof of service shall not affect the validity of the service.”
Two things follow from that. A lost or unsigned affidavit of service is a fixable problem, not a jurisdictional one, and Rule 4.07 lets the court, in its discretion and on just terms, allow a summons or proof of service to be amended at any time “unless it clearly appears that substantial rights of the person against whom the process issued would be prejudiced thereby.” And the time of service isn’t a throwaway detail. It drives response deadlines, including the extra day added under Rule 6.01(e) when service by a means other than U.S. Mail is accomplished after 5:00 p.m. See computing time under Rule 6.
One more boundary. E-service doesn’t reach the original summons and complaint. Minn. R. Civ. P. 5.02(b) authorizes electronic service of “all documents after the original complaint,” and Minn. Gen. R. Prac. 14.01(b)(5)(iii) points back at 5.02(b) for the same reason; see e-filing and e-service under Rule 14. What service does to the responsive-pleading clock and to waiver of defenses is Rule 12. And because commencement is what stops the clock, read this alongside Minnesota’s civil statutes of limitations.
Madgett Law, LLC associates with lawyers from other states on Minnesota matters and appears as local counsel. If you want a second read on a service question before it turns into a Rule 12.02 motion, send us a message.
Sources: Minn. R. Civ. P. 3.01, 3.02; Minn. R. Civ. P. 4.01, 4.02, 4.03(a)–(e), 4.04(a)–(b), 4.042, 4.05(a)–(e), 4.06, 4.07, and the Advisory Committee Comment — 2018 Amendments to Rule 4.05; Minn. R. Civ. P. 5.02(b); Minn. R. Civ. P. 6.01(e); Minn. R. Civ. P. 12.01; Minn. Gen. R. Prac. 14.01(b)(5)(iii). Rule text: Minnesota Revisor of Statutes court rules database, August 10, 2026. This article is general information about Minnesota civil procedure for other lawyers, not legal advice, and reading it creates no attorney–client relationship; no outcome is promised or implied.