Synchrony Bank CD Rates for 18 Month Jumbo certificate of deposits are now at 2.22 percent with an APY of 2.25 percent. 18 Month Jumbo CD Rates at Synchrony Bank were changed from 2.23 percent with a yield of 2.25 percent. Compare Synchrony Bank CD Rates for 18 Month Jumbo certificates of deposit with other CD rates. (continued below)