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FA-4121V

Declaration of Mailing

Wisconsin · Wisconsin Court System · Effective September 12, 2024

This form is used to tell the court that you mailed certain documents to another person. It asks you to list what documents were mailed and when and where they were sent.

The court describes it as: To provide a document by which a person who has served documents by mail upon another person can state the necessary information concerning that service. Voluntary form. Available in Spanish.

Open the official PDFfrom Wisconsin Court System

Where this fits in a case

Hearing

Stage: Hearing

This form is used by a person who has sent documents through the mail to another person in a case.

Either party may file.

Official instructions

How-to guides published by the court for this form.

Common questions

Who fills out this form?
The form is for a person who has mailed documents to another person in the case. It can be filled out by either party. Great care must be taken to fill out the correct information. Great care must be taken to fill out the correct information.
Do I need a Notary Public?
No, you do not have to take the document to a Notary Public if you provide an unsworn declaration. You must sign it yourself. Great care must be taken to fill out the correct information.
What kind of case is this for?
This form is related to family matters, as indicated by the case type. Great care must be taken to fill out the correct information.

Revision history

No changes recorded since we started tracking this form on October 10, 2026. The current version took effect September 12, 2024.

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