No, I wouldn't do a cash-out refi to pay something off that will be paid off in 10 months anyway. If you had a 10 year loan and most of the term left, the interest savings alone might justify paying it off with a cash-out refi. If you think about it, you mostly have principal left, not much interest is remaining for 10 months, so you basically will be paying TONS of interest on the refi!!! For a 10K balance you'd pay an additional $11.5k over the 30 years (assumptions used is a 6% 30 year fixed mortgage).