All articles 7 min read

Second Mortgages: Understanding Another Claim on Your Home

A second mortgage creates a separate debt tied to the same property. Its position behind the first mortgage can influence costs, refinancing, and what happens if payments stop. Compare the purpose and structure of the borrowing rather than treating available home equity as ordinary cash, and check how the second loan will interact with your existing mortgage.

The questions below use selected Consumer Financial Protection Bureau guidance, adapted and organized by Fynoptic. Source links and the dates displayed by those sources are provided at the end.

What is a second mortgage loan or "junior-lien"?

A second mortgage or junior-lien is a loan you take out using your house as collateral while you still have another loan secured by your house.

Home equity loans and home equity lines of credit (HELOCs) are common examples of second mortgages. Some second mortgages are “open-end” (meaning you can continue to take cash out up to the maximum credit amount and, as you pay down the balance, can draw again up to the same limit) and other second mortgage loans are “closed-end” (in which you receive the entire loan amount upfront and cannot redraw after that).

The term “second” means that if you can no longer pay your mortgages and your home is sold to pay off the debts, this loan is paid off second. If there is not enough equity to pay off both loans completely, your second mortgage loan lender may not get the full amount it is owed. As a result, second mortgage loans often carry higher interest rates than first mortgage loans.

By taking out a second mortgage, you are adding to your overall debt burden. Anytime you add on to your overall debt burden, you make yourself more vulnerable in case you then experience financial difficulties that affect your ability to repay your debts. It is important to know that a major risk with home equity loans or home equity lines of credit is that if you cannot repay a home equity loan or home equity line of credit, you could potentially lose your home because you are using the equity in your home as collateral.

Tip

Be careful using home equity to consolidate higher interest debts.

When you use home equity to pay off other debts you really aren’t paying them off. You are merely taking out one loan to repay another. The interest rates may be lower in the short term, but that’s only because you are using your home as collateral. The risk is that if you can’t repay your home equity loan, you could lose your home.

Plus, if you take on more debt, that could make repaying that new debt and existing loans difficult. For example, taking out a mortgage to pay off a five year car loan may have you making payments and paying additional interest for ten, fifteen, or even thirty years. Be careful about trading short-term debt for long-term debt at a higher cost to you.

What other types of loans are similar to a HELOC?

Depending on your financial situation and needs, you may be able to get other loan products that cost less or involve less risk than a Home Equity Line of Credit (HELOC).

A HELOC is a line of credit that allows you to borrow against the equity of your home, but if you’re considering this as an option, be aware that it comes with some risks and fees.

There might be a number of other lines of credit or lending options, however, that can be less risky or costly:

  • Second mortgage or home equity loan: Like a HELOC, a home equity loan lets you borrower against the equity in your home. You typically borrow all the money up front and then repay it in regular monthly payments. Repayment is often required when you sell your home.
  • Cash-out refinance: With a cash out refinance, you replace your existing mortgage with a bigger mortgage and take the difference in cash. Often, you have to pay closing costs. Carefully consider the interest rate, especially if it is higher than the interest rate on your current mortgage. Depending on the terms a cash out refinance may be more or less expensive than a HELOC.
  • Personal line of credit: A personal line of credit lets you borrow based on your credit, instead of using your home as collateral. Credit limits may be lower and interest rates may be higher than HELOCs or other options that use your home as collateral.
  • Credit card: Credit cards let you borrow up to your credit limit. Some credit card promotions allow you to pay a lower interest rate for certain number of months. But regular credit card interest rates are typically higher than for options that use your home as collateral.

Download our booklet to help you understand how HELOCs work, as well as how to shop around and watch out for pitfalls

If you want more guidance, a U.S. Department of Housing and Urban Development (HUD)-approved housing counseling agency can help you identify and evaluate the available alternatives. To find an approved agency, visit HUD’s website or call (800) 569-4287.

Does a HELOC affect my ability to refinance my first mortgage loan?

Taking out a HELOC can affect your ability to refinance.

Once you take out a HELOC, you may have to get approval from your HELOC lender in order to refinance your first mortgage loan. HELOC lenders can refuse to allow you to refinance your first mortgage loan. If your HELOC lender refuses to let you refinance, you may need to pay off the HELOC in order to refinance.

My mortgage closing forms mention a "security interest." What is a security interest?

The security interest is what lets the lender foreclose if you don't pay back the money you borrowed.

Tip

Learn more about the key steps in the closing process.

A security interest means that if you don't make the mortgage payments as agreed, or if you break your agreement with the lender, the lender can take your home and sell it to pay off the loan. You give the lender this right when you sign your closing forms. The document granting the security interest can be called by different names, but the most common names are "Mortgage" or "Deed of Trust."

Familiarize yourself with some of the key documents you will be signing at closing so that you know what to look for when you get them.

What is the difference between a Home Equity Loan and a Home Equity Line of Credit (HELOC)?

A home equity loan is a specific amount of money borrowed against the equity of your home. A Home Equity Line of Credit (HELOC) is a line of credit, like a credit card, except you are borrowing against the equity of your home. For both home equity loans and HELOCs, if you already have a mortgage these new loans would be considered second mortgages that you’d need to pay in addition to your first mortgage.

With a home equity loan, you receive the money you are borrowing in a lump sum payment, and you may have a fixed or adjustable interest rate. With a Home Equity Line of Credit (HELOC), you can borrow or draw money multiple times from an available maximum amount. Similar to a credit card, when you make payments on your HELOC the amount of available credit is replenished. HELOCs usually have adjustable interest rates and the payment will vary depending on the outstanding balance.

Download our booklet to help you understand how HELOCs work, as well as how to shop around and watch out for pitfalls.

If you are having trouble paying your mortgage, before taking out a home equity loan or home equity line of credit, talk to a housing counselor to see if there may be other options that make better financial sense for you. Call the CFPB at (855) 411-CFPB (2372) to be connected to a HUD-approved housing counseling agency today.

Sources and further reading

The CFPB source passages are U.S. government work in the public domain. Fynoptic has selected, organized, and adapted the material for this guide, including corrections identified through the additional sources listed above. Sources accessed October 27, 2026. This use does not imply agency endorsement or affiliation.

Back to all articles