First Internet Bank of Indiana CD Rates for 6 Month $25K certificate of deposits are now at 1.90 percent with an APY of 1.92 percent. 6 Month $25K CD Rates at First Internet Bank of Indiana were changed from 2.00 percent with a yield of 2.02 percent. Compare First Internet Bank of Indiana CD Rates for 6 Month $25K certificates of deposit with other CD rates.