The Wisconsin Affidavit of Mailing — Bankruptcy is a document used to ensure proof of service of bankruptcy documents in the state of Wisconsin. It is a notarized affidavit signed by the sender or mailing service provider, confirming that the documents have been delivered to the appropriate parties. The Affidavit includes details such as the date of delivery, the name and address of the recipient, and a description of the documents delivered. There are two types of Wisconsin Affidavit of Mailing — Bankruptcy: the Bankruptcy Petition Affidavit of Mailing and the Bankruptcy Notice Affidavit of Mailing. The Bankruptcy Petition Affidavit of Mailing is used to prove that the bankruptcy petition has been properly served on all creditors and other parties, while the Bankruptcy Notice Affidavit of Mailing is used to prove that the bankruptcy notices have been properly served on all creditors and other parties.