The original Servicemen's Readjustment Act, passed by the United States Congress in 1944, extended a wide variety of benefits to eligible veterans. The loan guarantee program of the Veterans Administration has been especially important to veterans.

Under the law, as amended, the Veterans Administration is authorized to guarantee or insure home, farm, and business loans made to veterans by lending institutions. The VA can make direct loans in certain areas for the purpose of purchasing or constructing a home or farm residence, or for repair, alteration, or improvement of the dwelling. The terms and requirements of VA farm and business loans have not induced private lenders to make such loans in volume during recent years.

The Veterans Housing Act of 1970 removed all termination dates for applying for VA-guaranteed housing loans. This 1970 amendment also provided for VA-guaranteed loans on mobile homes.

More recently, the Veterans Housing Benefits Improvement Act of 1978 expanded and increased the benefits for millions of American veterans.

Despite a great deal of confusion and misunderstanding, the federal government generally doesn't make direct loans under the act. The government simply guarantees loans made by ordinary mortgage lenders (descriptions of which appear in subsequent sections) after veterans make their own arrangements for the loans through normal financial circles. The Veterans Administration then appraises the property in question and, if satisfied with the risk involved, guarantees the lender against loss of principal if the buyer defaults.