<prompt> Human: My wife and I both have a substantial amount of student loan debt.She is currently sitting at 70,000 and I am at 119,000. We both have interest rates at 6.0. Minimum monthly payments on hers are 500month, mine are 800month.We are trying to pay them down ASAP, we are allocating an extra 2000month to paying them down. Would it be better to put all that to the principle of one of the loans until it is gone, then switch. Or to divide 1000 into each and lower the principle on both, but take twice as long to pay them off.Note: We have looked at refinancing the loans to a lower interest rate thru SoFi, but the rate was only about 0.5 lower. Due to hassle, possible fees, and the fact we are trying to pay it off as fast as possible, we thought we would easier to stick with the current companies. Assistant: If both loans are the exact same interest rate, it doesnt really matter financially if you pay one off than the other, or go at both at the same rate.So now its just how you feel. Would you feel better paying off both loans at an equal rate and watching them both go down at the same time?Or would you feel better tossing everything at the smaller loan first, and that accomplished feeling of killing it off before tackling the larger loan?Human: Currently we are paying off her student loan with the full 2000month on top of her minimum monthly payment. I just wanted to make sure there was no advantage to splitting that into 1000 to each, to lower the principle so the interest accrued would be smaller on the bigger loan.  <response>: I just wanted to make sure there was no advantage to splitting that into 1000 to each, to lower the principle so the interest accrued would be smaller on the bigger loan.You are correct. The interest on the loan with the lower principal will be lower, but the interest on the higher loan will be higher by the exact same amount, if they have the same interest rate.The mathematically best approach is to continue paying the most you can on the lower balance loan, then once thats paid off, you free the minimum payment youd been making as well, so youll have more than the extra 2k to throw at the second loan. Be aware of your states divorce laws concerning debt, just in case of the worst, though. 