Do i need to fill out this co-occupant income form for my girlfriend who co-owns the house with me?

Is that some state form?  If so, which state?

Minnesota

I'm not sure how to fill this out if it needs AGI info off the M1 form that I am still working on...

 

 

Perhaps.  It depends upon your housing situation.

 

See Minnesota instructions line 14 page

 

2021 Homestead Credit Refund (for Homeowners) and Renter’s Property Tax Refund Forms and Instructions

• Renters: Do not complete this line.
• Homeowners: Use Worksheet 5 on page 31 to determine the total income for each co-occupant living with you.
• If the total co-occupant income is a negative number, enter the total as a negative.
• If you had multiple co-occupants, have each of them complete a worksheet. Include the worksheet(s) with your return.

 

Sounds like co owner must provide co occupant worksheet, but also says only one of the owners can apply for the refund.