Some think it needs to be paid immediately but Minnesota statute does give the owner 21 days after tenant has vacated the property, so they have time to access any damages, cleaning charges or delinquent rent or utilities that are owed. Once that has been determined the deposit + 1% interest minus any monies owed will be refunded to the tenant. It is important that you supply your landlord with your new forwarding address to avoid delays in receiving your deposit.