What is a Home Equity Line of Credit?

A home equity line is a form of revolving credit in which your home serves as collateral. Because the home is likely to be a consumer's largest asset, many homeowners use their credit lines only for major items such as education, home improvements, or medical bills and not for day-to-day expenses.

With a home equity line, you will be approved for a specific amount of credit-your credit limit-meaning the maximum amount you can borrow at any one time while you have the plan.

Many lenders set the credit limit on a home equity line by taking a percentage (say, 75 percent) of the appraised value of the home and subtracting the balance owed on the existing mortgage. For example:

Appraisal of home $100,000 Percentage x75% Percentage of appraised value $75,000 Less mortgage debt -$40,000 Potential credit line $35,000

In determining your actual credit line, the lender also will consider your ability to repay, by looking at your income, debts, and other financial obligations, as well as your credit history.