For most older Americans, their home equity is their largest asset. More than 80% of senior households own their own homes. These owners represent four trillion dollars in home equity. A reverse mortgage is a home-secured loan that does not have to be repaid until the borrower dies, sells the home, or moves out of the home permanently. A reverse mortgage enables older homeowners to convert part of the equity in their homes into tax-free income without having to sell the home, give up title, or take on a new monthly mortgage payment. America's population is aging, and that means reverse mortgages should be on the radar screens of more households. The mortgage industry foresees strong growth ahead for reverse mortgages amid a demographic shift to senior citizens as baby boomers approach retirement age. Reverse mortgage borrowers continue to own their homes, so they're still responsible for property taxes, insurance and repairs.