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Debt Basics
What is mortgage debt and how to manage it
Updated Nov 11, 2026
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Key takeaways:
A mortgage is a secured loan used to finance a home purchase.
Homeowners with sufficient equity might qualify for a home equity loan or a home equity line of credit (HELOC) as a second mortgage.
Falling behind on mortgage payments could lead to credit score damage and foreclosure in extreme cases, so it’s important to manage mortgage debt carefully.
When you’re buying a home, it’s common to take out a mortgage. A mortgage is a loan used to finance a home purchase. You could borrow a lump sum and repay it over time with interest.
Mortgages are secured loans. If you take out a mortgage, your home is used as collateral.
This guide explains how mortgage debt works, ways to manage it, and how you might be able to use your home equity to consolidate other debt.
How mortgage debt works
A mortgage is a loan that’s secured by the home it’s used to purchase. If you fail to repay the loan, the lender could sell the home to recoup the money you owe. That’s a financial safety net for the lender. As a result, mortgage rates are often lower than rates on credit cards and personal loans.
Monthly mortgage payments usually include principal and interest. Many mortgage payments also include property taxes and homeowners insurance through an escrow account.
As you pay down a mortgage balance or your home's value increases, you can build equity in your home. Equity equals the difference between your home’s value and the amount you owe on your mortgage.
Your mortgage appears on your credit reports as an installment loan. Mortgage payments also factor into your debt-to-income ratio (DTI), which lenders use to measure how much of your monthly income goes toward debt payments.
How to manage mortgage debt
A mortgage is the largest debt many people ever carry, and a few habits could make it easier to manage.
First, prioritize making every mortgage payment on time. Automatic payments could help you avoid late fees and damage to your credit score.
A budget could also make it easier to manage your mortgage alongside other expenses. A free budgeting app can help you track your spending and keep track of your debt payments.
It’s common for mortgage loan servicers to change over the course of a loan. A mortgage loan servicer is the company that handles the administrative tasks of your mortgage after the loan has closed. If you get a notice that you have a new servicer, make sure to direct future mortgage payments to the right place to stay current on your payments.
If interest rates fall after you take out your mortgage, refinancing could make sense. A refinance replaces your current mortgage with a new loan that could offer a lower interest rate or more favorable terms. Before moving forward, compare potential savings against closing costs and fees.
Extra payments could also reduce mortgage debt faster. Applying additional funds from a bonus, tax refund, or other windfall directly to the principal could lower your interest costs over the life of the loan.
How a second mortgage works
A second mortgage is a loan taken out using your home equity as collateral while your original mortgage is still being paid off. Home equity loans and home equity lines of credit (HELOCs) are examples of a second mortgage.
With a home equity loan, you borrow a lump sum of money and repay it over time with interest. A HELOC is a line of credit you can borrow from, repay, and borrow from again during the draw period, and then repay over time with interest during the repayment period.
A second mortgage is included in your DTI ratio. It doesn’t affect your credit utilization the same way a credit card balance does. Utilization applies to revolving credit accounts. FICO scores generally do not include HELOC balances in your credit utilization ratio, but VantageScores might.
Using home equity to consolidate debt
If you carry high-interest credit card balances or other unsecured debt, you could use a home equity loan or HELOC to consolidate. You could also look at a cash-out refinance.
Consolidating means using one new loan to pay off more than one existing debts. That could leave you with fewer monthly payments to track. Sometimes it makes sense to consolidate if doing so lowers the cost of your debt or makes your finances more manageable.
With a cash-out refinance, you swap your existing mortgage for a new one with a higher balance than what you owe. The new mortgage pays off your old mortgage, and you could use the remaining cash for different purposes, including debt consolidation.
When you use a home equity loan or HELOC to pay off credit cards, your original mortgage is left untouched, which could be smart if refinancing would cause you to lose a low interest rate.
For some homeowners, replacing a high credit card APR with a lower-rate secured loan could be a smart financial move. Before you make a decision, compare the total cost of each option, including closing costs, instead of focusing only on the monthly payment.
What happens if you default on your mortgage?
Mortgage default occurs when you stop making payments. Default doesn’t automatically lead to foreclosure, and you still have options for getting current on your mortgage and saving your home.
Missed mortgage payments typically result in fees and credit score damage because lenders report them to credit bureaus. If the delinquency continues, your loan servicer might begin foreclosure proceedings to recover the outstanding balance.
Contact your mortgage loan servicer as soon as possible if you’re struggling to make payments. Depending on your circumstances, you may qualify for forbearance, which temporarily reduces or pauses payments, or a loan modification that changes your mortgage terms to make payments more affordable.
A U.S. Department of Housing and Urban Development (HUD)-approved housing counselor can also help you review your options, often at little or no cost. If keeping up with your mortgage payments is no longer realistic on a long-term basis, a short sale or deed in lieu of foreclosure might be an option.
With a short sale, a home is sold for less than its remaining mortgage balance. In some cases, the lender agrees to accept that amount in place of full repayment. In other cases, the borrower could be held responsible for the balance.
With a deed in lieu of foreclosure, ownership of the home is transferred to the mortgage lender. Any remaining balance is handled pursuant to the agreement between the borrower and the lender. In other words, there could be a debt to pay.
Both options cause credit score damage, but you might be eligible to get a new loan sooner after a short sale or deed in lieu of foreclosure compared to a full foreclosure.
What’s next?
If you plan to apply for a mortgage, do a budget first. That’s the best way to know how much of a payment you can afford. Also, check your credit and do what you can to improve it before you apply.
If you have a mortgage and it’s hard to keep up with payments, contact your loan servicer or a HUD-approved housing counselor before you miss a payment. Either way, you have a clear place to start.
If you have a mortgage and your payments are on track, pull up your latest statement and check your rate and balance. From there, you can decide whether you want to apply for a HELOC, make extra principal payments to reduce your debt faster, refinance to a whole new loan, or something else.
Author Information
Written by
Lindsay is a writer for Achieve. She's passionate about helping people learn how to manage their money better so that they can live the life they want. She enjoys outdoor adventures, reading, and learning new languages and hobbies.
Reviewed by
Maurie Backman is a veteran personal finance writer. Her coverage areas include retirement, investing, real estate, and credit and debt management.
Frequently asked questions about mortgage debt
Whether child support counts as debt depends on whether you pay or receive it. Lenders generally treat child support you pay as a recurring debt obligation and include it in your debt-to-income ratio. If you receive child support, some lenders might count it as income if you can show that the payments are reliable and likely to continue.
Lenders typically include recurring monthly obligations such as credit card payments, auto loans, student loans, personal loans, child support, and alimony payments. They use those obligations along with your proposed mortgage payment to calculate your debt-to-income ratio and evaluate your ability to repay the loan.
Mortgage debt could help or harm your credit score. Anytime you apply for a new loan, your score is likely to nudge downward for a little bit. Once you have the loan, three things matter:
The payment history. This is the most important. Paying late could hurt your credit, and paying on time should have a positive impact.
The account age. Credit scores look at the average age of all of your credit accounts. If you got a mortgage 10 years ago and you got a credit card 5 years ago, your average credit age is 7.5 years. Having old credit accounts is better than having new credit accounts.
The type of account. A mortgage is an installment loan account. A credit card is a revolving debt account. You get points for showing that you can handle different kinds of credit accounts.
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