News.com.au - Borrowers fail to understand interest rate changes Related : Grabbing market share before raising rates More banking news in our Money section RESEARCH shows that many Australian borrowers wrongly believe that retail banks can’t raise home loan ... Does the lender make privately or federally insured or guaranteed loans? Some mortgage loans may be backed by a federal agency, such as the Federal Housing Administration (FHA loans) or the Department of Veterans Affairs (VA loans).