An affidavit of service in Wisconsin — now officially called a declaration of service — is the signed statement the person who delivered your legal papers files with the court to prove the defendant received them. Without it on file, the judge has no evidence the defendant knows about the case and cannot move forward. The good news is that Wisconsin no longer requires this document to be notarized; a signature under penalty of false swearing carries the same legal weight.1Wisconsin State Legislature. Wisconsin Code 887.015 – Uniform Unsworn Declarations Act
Who Can Sign the Declaration
The declaration is signed by the person who actually handed over the papers, so the first question is whether that person was eligible to serve process in the first place. Under Wis. Stat. § 801.10(1), the server must be an adult, a resident of the state where service happened, and not a party to the lawsuit.2Wisconsin State Legislature. Wisconsin Code 801.10 – Summons, by Whom Served If you filed the case, you cannot be the server, and you cannot sign the declaration. A friend, relative, hired process server, or sheriff’s deputy can.
Wisconsin also allows adults who live in Illinois, Iowa, Michigan, or Minnesota to serve papers inside Wisconsin.2Wisconsin State Legislature. Wisconsin Code 801.10 – Summons, by Whom Served A declaration signed by a server who didn’t meet these requirements is vulnerable to being thrown out, so confirm eligibility before anyone signs.
What Information the Declaration Must Contain
At the moment of service, the server is required to sign the summons and record the time and date, the place where service happened, the manner of service, and the name of the person who received the papers. A sheriff or deputy also notes their official title.2Wisconsin State Legislature. Wisconsin Code 801.10 – Summons, by Whom Served Those on-the-spot notes become the backbone of the declaration.
The declaration itself has to confirm all of that plus information about the server’s qualifications: that the server is an adult resident of the appropriate state, is not a party to the action, and knew the person served was the named defendant.2Wisconsin State Legislature. Wisconsin Code 801.10 – Summons, by Whom Served If the papers were left with someone else at the defendant’s home (substituted service), the declaration also has to spell out when and where that happened, with whom the papers were left, and what reasonable efforts the server made to reach the defendant personally first.
Precision matters. A wrong date, misspelled name, or vague address description gives the defendant grounds to challenge service later. Recording the details in real time, rather than reconstructing them from memory days afterward, is what makes a declaration hold up.
Signing Under Penalty of False Swearing
Under the Uniform Unsworn Declarations Act, codified at Wis. Stat. § 887.015, an unsworn declaration signed under penalty of false swearing has the same legal effect as a notarized affidavit.1Wisconsin State Legislature. Wisconsin Code 887.015 – Uniform Unsworn Declarations Act The required language is: “I declare under penalty of false swearing under the law of Wisconsin that the foregoing is true and correct.” The server then adds the date, location, printed name, and signature.
This change came through 2023 Wisconsin Act 245 and eliminated the common delay of tracking down a notary. A few narrow situations still require a sworn oath — depositions, oaths of office, and certain real estate recordings — but proof of service isn’t one of them.1Wisconsin State Legislature. Wisconsin Code 887.015 – Uniform Unsworn Declarations Act If you’re working from an older form that still asks for a notary block, check wicourts.gov for the current version.
Picking the Right Form
Wisconsin courts publish standardized declaration of service forms through the Wisconsin Court System website at wicourts.gov, organized by case type. Family law cases use Form FA-4120V.3Wisconsin Court System. Circuit Court Forms Small claims cases have their own set, such as SC-5120 for service of a summons and complaint. General civil, guardianship, and other case types each have dedicated versions. Using the wrong form is a common and avoidable source of delay, so match the form to the case type before the server fills anything in.
Filing the Declaration With the Court
Once the server signs the completed declaration, it goes to the person who requested service — usually the plaintiff or their attorney — who files it with the Clerk of Courts in the county where the case is pending. The statute says this should happen “promptly” but sets no deadline in days.2Wisconsin State Legislature. Wisconsin Code 801.10 – Summons, by Whom Served
One nuance surprises people: failing to file the proof of service does not invalidate the service itself. The defendant’s time to answer still runs from the date they actually received the papers.2Wisconsin State Legislature. Wisconsin Code 801.10 – Summons, by Whom Served But you still need the declaration on file before you can request a default judgment or take most other steps in the case, so delay only stalls your own litigation.
Electronic Filing
Wisconsin requires electronic filing for all new actions and new documents in existing circuit court cases. Licensed Wisconsin attorneys, attorneys appearing under special admission, and high-volume filing agents (ten or more actions per year in a county) must register for and use the e-filing system. Self-represented parties can register voluntarily but aren’t required to; if you don’t register, you file on paper with the Clerk of Courts in the county where the case is pending.4Wisconsin State Legislature. Wisconsin Code 801.18 – Electronic Filing
If the Declaration Is Challenged
Defendants who believe service was improper can raise “untimeliness or insufficiency of service of process” as a defense under Wis. Stat. § 802.06. It has to come up early, either in the defendant’s first responsive motion or in the answer; filing a responsive pleading without raising it waives the defense permanently.5Wisconsin State Legislature. Wisconsin Code 802.06 – Defenses and Objection; When and How Presented
Common grounds include service by someone who was a party to the case, papers left with a person who didn’t meet the statutory requirements, service at the wrong address, or a declaration with material inaccuracies. When a court finds service defective, it may require the plaintiff to re-serve, or in some cases dismiss the lawsuit entirely if the statute of limitations has run in the meantime. A thorough, detailed declaration that covers every element the statute requires is the best protection against this.
The Separate Military Status Affidavit for Default Judgments
If the defendant doesn’t answer and you want a default judgment, federal law adds a filing requirement that catches many Wisconsin litigants off guard. Under the Servicemembers Civil Relief Act, the court cannot enter a default until the plaintiff files a separate affidavit stating whether the defendant is on active military duty. If you cannot determine the defendant’s status, the affidavit has to say that.6Office of the Law Revision Counsel. 50 USC 3931 – Default Judgments The Department of Defense runs a free verification tool at scra.dmdc.osd.mil.7SCRA. SCRA Skipping this step can delay your default judgment and can lead to the judgment being set aside later, sometimes with attorney fees and costs awarded against you.