If you already have a low interest rate on your mortgage, it might be better to refinance the student loans with a higher rate. (effectify.com)
Unfortunately, with few refinancing options, many student loan borrowers tell us they feel stuck in loans with high rates, well after they've graduated and landed a job. (consumerfinance.gov)
This will allow you to save the most money, since loans with higher rates ultimately increase your total loan cost. (discover.com)