This type of financing can come in a variety of forms; a fixed interest rate, an ARM, an FHA or a VA. There are subcategories within each category mentioned that allow for detailed financing information and requirements. Fixed rate online mortgage loans allow an interest rate to remain constant, usually 30 years. Those that plan on owning their home for an extended period of time benefit greatly from the fixed rate online mortgage loan. Fixed rates give the homeowner security in knowing that their payments will never increase. Deciding how to finance a house is probably the biggest financial decision a person can make.