The check digits enable the sending bank (or its customer) to perform a sanity check of the routing destination and account number from a single string of data at the time of data entry.
Generally, interest rates on FHA-backed mortgages are competitive with conventional mortgages. A quick scan of interest rates for 2012 reveals that FHA mortgages feature rates of about 3.33 percent. The FHA states that the average interest rate for a 30-year fixed loan on a single-family home is about 4.06 percent.
Use this FHA mortgage calculator to get an estimate. An FHA loan is a government-backed conforming loan insured by the Federal Housing Administration. FHA loans have lower credit and down payment requirements for qualified homebuyers. For instance, the minimum required down payment for an FHA loan is only 3.5%. However, there are additional costs associated with the loan, including the upfront mortgage insurance premium (MIP), annual premiums and appraisal fees.