As of 2015, the average interest rate for a commercial loan for a small business is usually between 6 and 8 percent. Loans under $100,000 tend to have a lower interest rate, while those for more than $100,000 have higher interest rates.
Other factors that can affect the interest rate of a commercial loan include the credit score of the person applying for the loan and the source of the loan. People with good credit are deemed less risky when applying for a loan and may qualify for a lower interest rate. Foreign banks also tend to offer lower interest rates because they have fewer restrictions than domestic institutions.