The benchmark 30 year FRM interest rates at GMAC Mortgage are available starting at 3.750% today carrying an APR of 3.786%. Shorter term, popular 15 year fixed rate mortgage interest rates are available starting at 3.250% carrying an APR of 3.261% today.
The 5/1 Adjustable Rate Mortgages are 3.000% at GMAC Mortgage with an APR of 3.087%. The 5/1 Jumbo Adjustable Rate Mortgages are on the books at 3.125% with an APR of 3.087% to start.
Standard 30 year refinance fixed rate loan interest rates are 3.625% at GMAC Mortgage and an APR of 3.713%. 15 year refi fixed rate mortgages at the bank are listed at 3.250% and an APR of 3.336% today. 5 year refi ARMs are being offered for 3.000% at GMAC Mortgage. with a starting APR of 3.082%. 5 year refi Jumbo ARM loans are available starting at 3.125% with a starting APR of 3.058%.