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Wisconsin reasonable-diligence service under Wis. Stat. § 801.11. Substituted, corporate. UIDDA at § 887.24, publication, 90-day deadline.
Wisconsin's service framework under Wis. Stat. §§ 801.02 and 801.11 has a distinctive front-loaded diligence requirement: the plaintiff must attempt personal service "with reasonable diligence" before substituted service is available. Wisconsin adopted UIDDA in 2013, which has substantially streamlined out-of-state subpoena practice. This guide walks through each service method, the diligence requirement, and the 90-day service deadline that drives Wisconsin civil practice.
This is practical guidance, not legal advice. Wisconsin service of process rules are found in Wisconsin Statutes §§ 801.02 and 801.11 (civil actions and service of summons), with UIDDA codified at Wis. Stat. § 887.24 (effective December 14, 2013, 2013 Wisconsin Act 33).. For service of process nationwide, Served 123 LLC handles Wisconsin and all 49 other states with qualified servers.
Under Wis. Stat. § 801.11, service may be made by the sheriff of the county where service is to be made or by any person 18 years of age or older who is not a party to the action. Wisconsin does not operate a statewide process-server licensing scheme, but county sheriffs maintain civil process divisions that handle a significant portion of service work, particularly in rural counties. Private servers are commonly used in Milwaukee, Madison, and the suburban counties.
Personal service under Wis. Stat. § 801.11(1)(a) is made by delivering a copy of the summons and complaint to the defendant personally. If the defendant refuses to accept the papers, the server may leave them in the defendant's immediate presence after identifying the documents—refusal does not defeat service. The server completes an affidavit or sheriff return describing the date, time, place, and manner of service for filing with the court.
Substituted service under Wis. Stat. § 801.11(1)(b) is available only if, with reasonable diligence, the defendant cannot be served personally. Service is then made by leaving a copy of the summons and complaint at the defendant's usual place of abode in the presence of a competent member of the family at least 14 years of age, who shall be informed of the contents thereof. Wisconsin's "reasonable diligence" threshold is enforced: a single failed attempt typically will not support substituted service. Document each attempt with date, time, and result.
Wisconsin does not use mail as a primary method of serving the original summons and complaint on individuals. Wis. Stat. § 801.11(1) lists the primary methods as personal and substituted; mail is available only in specific statutory contexts or with court approval. For subpoenas and subsequent papers on counsel of record, Wis. Stat. § 801.14 permits mail service under standard conditions. For UIDDA subpoenas under § 887.24, service follows § 801.11 or applicable subpoena rules.
Under Wis. Stat. § 801.11(5), service on a domestic or foreign corporation is made by personally serving an officer, director, or managing agent of the corporation or, if those persons cannot be found with reasonable diligence, by personally serving the registered agent. Service on LLCs follows § 801.11(6); partnerships § 801.11(7). Registered agents and office addresses are public record through the Wisconsin Department of Financial Institutions at wdfi.org. Verify the registered agent before service; changes and resignations are routinely reflected in the online business search.
Wisconsin adopted UIDDA at Wis. Stat. § 887.24, effective December 14, 2013 (2013 Wisconsin Act 33). Out-of-state counsel tenders the foreign subpoena to the clerk of circuit court in the Wisconsin county where discovery is sought; the clerk issues a conforming Wisconsin subpoena. Service is made under the applicable Wisconsin service rules, and motions to quash or modify are heard in the Wisconsin circuit court under Wisconsin procedure. The substantive scope of discovery remains governed by the issuing state.
Service by publication under Wis. Stat. § 801.11(1)(c) is available when, with reasonable diligence, the defendant cannot be found within the state. The plaintiff files an affidavit demonstrating the locate efforts and the basis for publication. Publication runs once each week for three consecutive weeks in a newspaper published in the county and, if the defendant's address can be ascertained by diligent inquiry, a copy of the summons and complaint is mailed within 10 days after the first publication.
Wisconsin's UIDDA at Wis. Stat. § 887.24 provides a clerk-driven, non-judicial threshold for interstate subpoenas. The clerk of circuit court issues the conforming Wisconsin subpoena on tender of the foreign subpoena. Service is made under Wisconsin rules, and enforcement runs through the Wisconsin circuit court. The statute applies to subpoenas for testimony, documents, and inspection. Motions to quash, modify, or enforce are heard by the Wisconsin court, while the scope is governed by the issuing state's rules.
Wis. Stat. § 801.02(1) requires service of the authenticated summons and complaint within 90 days after filing. If service is not made within 90 days, the action is not commenced as to the un-served defendant, which can destroy statute-of-limitations compliance. There is no automatic extension; the remedy is to refile and re-serve within the limitations period. Calendar the 90-day date from filing and move service aggressively—Wisconsin's deadline is shorter than the federal 90-day benchmark it resembles.
The affidavit of service or sheriff return filed with the court must identify the defendant, the date, time, and place of service, the papers served, and the manner of service. For substituted service, it must identify the family member accepting papers, their relationship, and their apparent age (meeting the 14-year threshold), plus a statement of the reasonable-diligence attempts at personal service. For corporate service, identify the title of the officer, director, or managing agent, or confirm the reasonable-diligence basis for serving the registered agent.
Wisconsin Department of Financial Institutions (WDFI) at wdfi.org for registered agents and entity information; wicourts.gov for Wisconsin Statutes, court rules, and judicial directory; county clerk of circuit court offices for filing procedures and UIDDA subpoena issuance; and county sheriff civil process divisions for sheriff service fees and turnaround.
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No. Wisconsin, like every other state, prohibits parties from serving their own process. The server must be an adult non-party or an authorized officer/licensed server per Wisconsin rules.
Wisconsin requires service of the summons and complaint within 90 days after filing under Wis. Stat. § 801.02(1). If service is not made within that period, the action is not commenced as to the un-served defendant. There is no automatic extension—the remedy is to refile and re-serve within the statute of limitations. Calendar the 90-day date from filing and pursue service aggressively, using both sheriff and private-server channels if needed.
Mail is not a primary method for serving the original summons and complaint on individuals in Wisconsin. Wis. Stat. § 801.11(1) lists personal and substituted service as the primary methods; mail applies only in specific statutory contexts or with court approval. For subsequent papers on counsel of record, Wis. Stat. § 801.14 permits mail service under standard conditions. For subpoenas under UIDDA, follow the applicable Wisconsin subpoena-service rules.
Serve an officer, director, or managing agent personally under Wis. Stat. § 801.11(5). If those persons cannot be found with reasonable diligence, serve the registered agent. Registered agents and office addresses are public record through the Wisconsin Department of Financial Institutions at wdfi.org. Verify the agent of record the day of service; agent changes and resignations are common and stale information produces quashed returns.
Wisconsin follows the majority refused-acceptance rule. The server may place the papers in the defendant's immediate presence after identifying the nature of the documents. Service is valid despite refusal.
Wisconsin adopted UIDDA at Wis. Stat. § 887.24, effective December 14, 2013. Tender the foreign subpoena to the clerk of circuit court in the Wisconsin county where discovery is sought; the clerk issues a conforming Wisconsin subpoena. Service is made under the applicable Wisconsin service rules. Motions to quash or modify are heard in circuit court under Wisconsin procedure. No miscellaneous action is required at the threshold.
Start with a skip trace, then move for service by publication on a court order supported by an affidavit documenting diligent inquiry. three consecutive weeks in a newspaper of general circulation in the county where the action is pending.
