Borrowers apply directly to enrolled lenders. We're ready to help you succeed.Contact Small Business Development. Step 3: Fill Out Application. Before you make any taxable sales in Minnesota, you must register for a Minnesota Tax ID Number and a Sales and Use Tax account. To do this, type the proposed name into the search box. Before you make any taxable sales in Minnesota, you must register for a Minnesota Tax ID Number and a Sales and Use Tax account. Some sellers might offer to finance a part of the purchase price. Almost all businesses in Minnesota must register with the Office of the Minnesota Secretary of State. Purchase of a home in the City of Saint Paul.