Small business loan interest rates are based on the level of risk for the lender. The lower the risk, the lower the interest rate will be. Typical interest rates for business loans range from 10% to 25% per annum.
It depends on the interest type used. If the lender offers Simple Interest, the rate can easily be calculated by multiplying the loan amount by the rate (expressed as a decimal), by the term (expressed in years). For example, 15% would be 0.15 as a decimal and 6 months would be 0.5 years. $10,000 x 0.15 x 0.5 = $750.
Business loans terms are often 12 months, however, terms can range from as little as 3 three months to 36 months.
Yes, you can repay the loan early, but in some cases you will not save any money by paying it early, in other cases you will save interest by paying it early. Check with the lender on their policy for repaying loans early and if there are any fees.