Fill out all the mandatory fields and submit your registration. You must use a valid email address to receive your temporary credentials.Minnesota law requires remote sellers to collect Minnesota Sales and Use Tax on their sales into the state. See Minnesota Statute 297A. State income tax rules to determine if your eCommerce business needs to pay tax in Minnesota. Guide on MN sales tax for online sellers. Step 1: Create an online account with us and login. Here you can find more information about creating an online account. Reporting companies can file beneficial ownership information electronically through FinCEN's BOI E-Filing System. Us and click on the.