Unlike residential mortgages, which are largely based on the income of the borrower, commercial mortgages focus heavily on the profitability of the borrowing company or strength of the lease in place for the property. In that sense, buy-to-let mortgages are actually a type of commercial mortgage. The key takeaway is that both are unregulated mortgages – where the borrower is not residing in the premises. Commercial mortgages are typically used to purchase land, retail outlets, office blocks, industrial units, or warehouses. They are often also used to refinance existing commercial loans to release equity for working capital purposes and cash flow management.
