Fixed-Rate Mortgage
As the name implies, a fixed-rate mortgage carries the same interest rate for the life of the loan. Traditionally, fixed-rate mortgages have been the most popular choice among homeowners, because the fixed monthly payment is easy to plan and budget for, and can help protect against inflation. Fixed-rate mortgages are most common in 30-year and 15-year terms, but recently more lenders have begun offering 20-year and 40-year loans.

Adjustable-Rate Mortgage (ARM)
Adjustable-rate mortgages differ from fixed-rate mortgages in that the interest rate and monthly payment can change over the life of the loan. This is because the interest rate for an ARM is tied to an index (such as Treasury Securities) that may rise or fall over time. In order to protect against dramatic increases in the rate, ARM loans usually have caps that limit the rate from rising above a certain amount between adjustments (i.e. no more than 2 percent a year), as well as a ceiling on how much the rate can go up during the life of the loan (i.e. no more than 6 percent). With these protections and low introductory rates, ARM loans have become the most widely accepted alternative to fixed-rate mortgages.

Balloon payments
A balloon payment refers to a loan that has a large, final payment due at the end of the loan. For example, there are currently fixed-rate loans which allow homeowners to make payments based on a 30-year loan, even though the entire balance of the loan may be due (the balloon payment) after 7 years. As with some hybrid loans, balloon loans may be attractive to homeowners who do not plan to stay in their house more than a short period of time.

FHA and VA Home Loans
U.S. government loan programs such as those of the Federal Housing Administration (FHA) and Dept. of Veterans Affairs (VA) are designed to promote home ownership for people who might not otherwise be able to qualify for a conventional loan. Both FHA and VA loans have lower qualifying ratios than conventional loans, and often require smaller or no down payments.

Bear in mind, however, that FHA and VA loans are not issued by the government; rather, the loans are made by private lenders but insured by the U.S. government in case the borrower defaults. Remember too, that while any U.S. citizen may apply for a FHA loan, VA loans are only available to veterans or their spouses and certain government employees.

VA loans are guaranteed by U.S. Dept. of Veterans Affairs. The guaranty allows veterans and service persons to obtain home loans with favorable loan terms, usually without a down payment. In addition, it is easier to qualify for a VA loan than a conventional loan. The U.S. Department of Veterans Affairs does not make loans, it guarantees loans made by lenders. VA determines your eligibility and, if you are qualified, VA will issue you a certificate of eligibility to be used in applying for a VA loan. VA-guaranteed loans are obtained by making application to private lending institutions.