Liabilities in Mortgage Qualification: How Underwriters Calculate Your Debts

Liabilities in Mortgage Qualification: What Debts Count?

When applying for a mortgage, understanding how underwriters evaluate liabilities in mortgage qualification is essential. Your income and liabilities play a significant role in deciding if you qualify for a loan. Understanding this is essential for your financial planning. Even with a high income, excessive liabilities could make it difficult to qualify without assistance from a trusted lender like Gustan Cho Associates.

Learn how underwriters calculate liabilities for mortgage qualification, including credit cards, car loans, student loans, leases, taxes, and co-signed debt.

In this updated guide, we’ll cover how liabilities impact your mortgage application and provide tips to help you prepare. Whether you’re dealing with student loans, car payments, or other financial obligations, this guide on liabilities in mortgage qualification will give you the knowledge to navigate the process confidently.

How Do Liabilities Affect Mortgage Qualification?

Mortgage underwriters evaluate debt differently from borrowers. Liabilities are recurring financial obligations considered to determine if a proposed housing payment impacts a borrower’s ability to repay existing debts. These include credit cards, car loans, student loans, personal loans, leases, child support, tax payment plans, and other loans. Different mortgage programs may assess the same liability differently, so it is important to understand each program’s guidelines. While reviewing total liabilities, underwriters focus on monthly payments and the debt-to-income ratio (DTI).

What Are Liabilities in Mortgage Qualification?

A liability is an amount owed to a lender or creditor that must be repaid. Underwriters review credit reports, loan applications, bank statements, and supporting documentation to identify liabilities. Liabilities that may affect mortgage qualification include credit cards, loans, installment accounts, leases, child support, alimony, home equity liens, tax payment agreements, and certain co-signed debt obligations. A debt appearing on a credit report does not require the underwriter to use the reported calculation.

Mortgage Guidelines Dictate:

• whether the liability is factored in
• Which payment amount is used
• whether the liability is excluded
• What documentation must be submitted
• whether a payment by another person changes the calculation

Two borrowers with the same total liabilities may have significantly different qualifying debt-to-income ratios.

Why the Monthly Payment Can Matter More than the Balance

When qualifying for a mortgage, lenders focus on the required monthly payment rather than the total debt balance. Mortgage underwriters have a fiduciary duty to determine the borrower’s ability to repay the home loan.

For Instance, Consider Two Borrowers:

• Borrower A has $20,000 outstanding on an auto loan with a $700 monthly payment.
• Borrower B has $40,000 of student loans with a qualifying monthly payment of $200.
• Although Borrower B owes twice as much in student loans as Borrower A, the lower qualifying payment may have a smaller impact on DTI.

Ultimately, the Total Debt Amount is Less Important Than the Following Question:

“Which payment amount does the mortgage program require the underwriter to use?”

How Underwriters Use Liabilities to Calculate Debt-to-Income Ratio

The debt-to-income ratio (DTI) is the ratio of the borrower’s monthly qualifying obligations to the borrower’s monthly qualifying income.

The General Mathematics is as Follows:

(Monthly housing payment + monthly qualifying obligations) / qualifying gross monthly income = DTI The housing payment consists of principal, interest, property taxes, home insurance, mortgage insurance, and HOA (if applicable).

An Underwriter Reviews Qualifying Debts and Obligations as Part of the Approval Process

Mortgage DTI Example

If the Monthly Qualifying Gross Income is Assumed to be $7,500, Then

• Proposed housing payment: $2,200
• Auto loan payment: $475
• Credit card payment: $150
• Student loan payment: $225

All Qualifying Monthly Obligations Total:

• $2,200 + $475 + $150 + $225 = $3,050

Using the Above, DTI Would Equal:

• $3,050 / $7,500 = 40.7% DTI

Qualification Guidelines Update

Mortgage qualification rules can change. This guide reflects major Fannie Mae, Freddie Mac, FHA, VA, and USDA debt-calculation rules as of August 2026. Borrowers should confirm applicable guidelines with a licensed mortgage professional.

Mortgage Guidelines Dictate:

• whether the liability is factored in
• Which payment amount is used
• whether the liability is excluded
• What documentation must be submitted
• whether a payment by another person changes the calculation

Two borrowers with identical total liabilities may have significantly different qualifying debt-to-income ratios.

Here’s a Simple Breakdown:

• To determine your debt-to-income (DTI) ratio, start by summing all your monthly debts, including your new mortgage payment, and then divide that sum by your monthly income.
• This straightforward formula helps you understand your financial situation better.

For example, if you have a total of $2,000 in monthly payments and earn $6,000 monthly, your DTI would be 33%. Different loan programs have different rules about DTI, so it’s important to know what those are as you think about your options.

Liabilities in mortgage qualification can be important, but they don’t have to stop you from getting a home. Understanding how lenders look at your debts can really improve your chances of approval.

At Gustan Cho Associates, we want to help you reach your dream of owning a home, regardless of your finances. Remember, understanding your liabilities in mortgage qualification can help you make better financial choices. If you have questions, Gustan Cho Associates is here to help you find the right fit for your situation.

What Debts Qualify When Applying for a Mortgage?

Not all debts are calculated the same way. The following are some liabilities most often reviewed during the mortgage process.

Credit Cards and Lines of Credit

• When a credit card has a balance and a payment, the minimum payment is generally used to qualify for the applicable program.
• When no payment is shown, the balance is assumed to be the debt, and other calculations may be required.
• Fannie Mae often creates a payment equal to 5% of the outstanding balance when payment amounts are not available on the credit report or other documentation.
• Similarly, Freddie Mac has provisions for using 5% where the revolving payment is not documented.
• As a result, credit card debt can significantly affect qualification, even if the overall balance is small.

Auto Loans, Personal Loans, and Other Installment Debt

Installment debt has a fixed or scheduled repayment period.

This Includes:

• Auto loans
• Personal loans
• Furniture loans
• Equipment loans
• Certain timeshare obligations
• Other fixed payment loans

A monthly installment commitment with more than 10 payments remaining will generally be included in the DTI ratio under conventional guidelines.

If 10 or fewer payments remain, the debt may be excluded in some cases. However, it may still be included if the payment is significant relative to the borrower’s income.

According to Fannie Mae, short-term installment debt can be considered by the underwriter if it materially affects the borrower’s ability to meet other obligations.

Do Car Leases Count in DTI for Mortgage Qualifying?

A car lease and a car loan are two different things. An installment auto loan will end the debt when all payments are fulfilled. With a lease, the debt continues, as the borrower will need a new lease or a new vehicle at the end of the current lease. Because of this, Fannie Mae and Freddie Mac typically ask for lease payments to be accounted for, even if there are only a few payments left on the current lease. Applicants should not assume a vehicle lease will be excluded from DTI after closing, as it may still be considered.

Child Support, Alimony, and Other Court-Ordered Obligations

The Following Obligations Can Also Impact Mortgage Qualification:

• Child support
• Alimony or maintenance
• Separate maintenance payments
• Certain equalization payments

These obligations will be treated in a manner consistent with the requirements of the mortgage program and the duration of the obligation. For example, Fannie Mae will typically include qualifying court-ordered obligations in the mortgage calculation if more than 10 payments remain. Alternatively, in line with Fannie Mae’s requirements, Fannie Mae may consider certain types of alimony, separate maintenance payments, and equalization payments and subtract them from qualifying income rather than considering them as a monthly obligation. Because divorce decrees and support orders can be complex, provide these documents early in the preapproval process.

HELOCs and Other Mortgage Debt

Other Forms of Existing Mortgage Debt Include:

• First mortgages
• Second mortgages
• Home equity loans
• Home equity lines of credit

Mortgages on investment properties.  The underwriter will determine the borrower’s post-closing mortgage obligations and housing expenses. The obligation to pay a mortgage does not normally extend to a borrower who intends to sell or transfer the mortgage. The applicable agency’s rules and the transaction documentation will determine whether existing mortgage debt can be excluded,

Case Scenario

If the $475 auto payment qualifies for exclusion under mortgage guidelines because another person has made the payments, and documentation is provided, The monthly obligation would now total $2,575.

• $2,575 / $7,500 = 34.3% DTI

That liability changed the qualifying ratio from approximately 41% to 34%. This example highlights the importance of reviewing liabilities before seeking mortgage pre-approval. Fannie Mae and Freddie Mac guidelines have provisions for debts paid by another party with a specified set of documentation and payment history.

Auto Loans, Personal Loans, and Other Installment Debt

Installment debt has a fixed or scheduled repayment period.

This Includes:

• Auto loans
• Personal loans
• Furniture loans
• Equipment loans
• Certain timeshare obligations
• Other fixed payment loans
• A monthly installment commitment with more than 10 payments remaining will generally be included in the DTI ratio under conventional guidelines.
• If 10 or fewer payments remain, the debt may be excluded in some cases.
• However, it may still be included if the payment is significant compared to the borrower’s income.

According to Fannie Mae, short-term installment debt can be considered by the underwriter if it materially affects the borrower’s ability to meet other obligations.

How IRS Payment Plans Impact Mortgage Qualifications

If you are in an IRS payment agreement or owe back taxes to any other tax collector, it may adversely impact your ability to get a mortgage. According to Fannie Mae, if an installment agreement with the IRS is approved and conditions are met, the tax debt does not need to be paid prior to closing.

The monthly payment will typically become a qualifying obligation. The lender requires confirmation of whether a federal tax lien is on file and needs to check the status of the payment agreement.

Tax lien debtors should proactively provide the payment agreement and evidence of recent payments, rather than waiting for the underwriter to request them.

How Student Loans Shape Mortgage Qualifications

Student loans often cause confusion for borrowers and even experienced mortgage loan originators. There isn’t a universal student-loan calculation that is used by all mortgage programs. The qualifying payment amount depends on the mortgage program (Fannie Mae, Freddie Mac, FHA, VA, USDA, etc.).

Fannie Mae Student Loan Guidelines

Fannie Mae provides lenders with flexibility in using the reported monthly payment on student loans shown on the credit report. If the payment reported on the credit report is incorrect, documentation showing the correct payment (student loan payment) can be used. Underwriting should also consider the impact of income-driven repayment plans.

When borrowers are verified to have a $0 monthly payment obligation under income-driven repayment, Fannie Mae will allow lenders to make a $0 qualifying payment.

Fannie Mae requires lenders to make either one of the following for borrowers with unpaid or deferred student loans while in forbearance, where a payment has not been otherwise documented by the borrower:

• 0.50% of the student loan amount;
• a documented fully amortizing payment (Fannie Mae
• Borrowers with substantial student debt and documented income-driven repayment plans may benefit from considering Fannie Mae financing.

Freddie Mac Student Loan Guidelines

Freddie Mac has its own student loan calculations that differ from Fannie Mae’s. If a credit report shows a current student loan payment greater than $0 and is documented, that payment may be used in the loan file. If a credit report shows a current student loan payment of $0 and it is documented,

Freddie Mac generally requires a 0.5% payment of the student loan amount, unless supporting documentation is provided showing the payment would be greater than $0.

Freddie Mac also has special provisions for certain forgiveness, cancellation, discharge, and employment-contingent repayment situations. As a result, a borrower may have significantly different DTI values under Freddie Mac and Fannie Mae.

FHA Student Loan Guidelines

FHA generally requires student loans to be considered when qualifying for a mortgage, even when loans are deferred. When a student loan payment reported on the credit report is greater than zero, under current FHA regulations, the reported payment, or a documented payment, will be used as the monthly student loan payment.

If the reported payment is $0, the FHA requires that 0.5% of the outstanding student loan balance be used as the monthly student loan payment.

The student loan methodology contained in HUD Handbook 4000.1, as revised August 12, 2026, continues to require the use of a 0.5% calculation for the qualifying zero-payment obligation. Borrowers should not assume a $0 payment reported on a credit report will be accepted in FHA underwriting.

VA Student Loan Guidelines

VA loan underwriting treats certain student loan circumstances differently from FHA and conventional loans. For VA loans, if the borrower provides written documentation that a student loan will remain in deferred status for at least 12 months following loan closing, VA underwriting provides more favorable treatment than FHA and conventional loans.

If student loan repayment is scheduled to begin or has already begun, VA will use its student loan calculation and documentation to determine the monthly payment.

VA’s published student loan calculations set a threshold of 5% of the outstanding balance, divided by 12 months, as the student loan payment, and the documentation requirement will be more extensive if a lower reported payment has been made. VA residual income requirements, combined with VA underwriting, provide a better assessment of loan qualification than DTI alone.

USDA Student Loan Guidelines

USDA underwriting, like other loans, has a similar focus when evaluating student loans. USDA HB-1-3555 Chapter 11 guidance defines qualifying payment(s) at zero as 0.5% of the unpaid balance of the student loan(s). Borrowers subject to USDA guidelines should ensure their lender confirms compliance with HB-1-3555 and Guarantee Underwriting System requirements.

When Can a Debt Be Excluded From Mortgage DTI?

An underwriter’s most important task during a mortgage liability review is to determine whether each debt on the credit report must be included in the DTI calculation. Some obligations may qualify for exclusion under the agency’s underwriting guidelines if supporting documents meet the ICR.

Debts Paid by Someone Else

An account may be in a borrower’s name while another person makes the payments.

Some Examples Can Be:

• A parent making payments on a borrower’s student loan
• A spouse making payments on a borrowed car
• An adult child making payments on a jointly obligated account
• Another obligated party making payments on a co-signed loan
• Fannie Mae allows non-housing debts to be excluded if payments have been made by another party, and the required payment history has been documented.
• Fannie Mae generally requires proof that, during the last 12 months, the other party has made payments without delinquencies.
• Freddie Mac has exclusions for contingent liabilities when payments are the responsibility of another party.

Borrowers cannot simply state “someone else pays it” to satisfy lenders. They must provide all required payment records.

Liabilities in Mortgage Qualification Are Basically the Money You Owe to Others That You Have to Pay Back.

This Includes Things Like the Following:

• Credit card bills
• Car payments
• Student loans
• Payments for child support or alimony
• Any other regular monthly debts

When applying for a mortgage, lenders look closely at these liabilities because they help figure out your debt-to-income (DTI) ratio. This ratio is important when deciding if you can get approved for a loan.

How Mortgage Underwriters Determine Your Debts

The debt-to-income ratio is an important number to understand when you’re thinking about taking on a mortgage. It compares how much money you owe each month to how much you make before taxes are taken out. Lenders evaluate this ratio to see if you can manage your monthly mortgage payments and other financial responsibilities.

If your debts are too high compared to your income, it could raise a red flag for them. Knowing your liabilities in mortgage qualification is essential for making a good impression on lenders.

They aim to guarantee you can manage your mortgage payments comfortably without putting too much strain on your finances. A lower debt-to-income ratio means you’re a better candidate for a loan, as it shows that you have enough incoming money to handle your monthly costs. So, it’s a good idea to keep an eye on your debts and earnings before applying for a mortgage!

Case Scenario on How Mortgage Underwriters Calculate Debt-to-Income Ratio

For example, if you have a total of $2,000 in monthly payments and earn $6,000 monthly, your DTI would be 33%. Different loan programs have different rules about DTI, so it’s important to know what those are as you think about your options. Remember, understanding your liabilities in mortgage qualification can help you make better financial choices. If you have questions, Gustan Cho Associates is here to help you find the right fit for your situation.

Types of Liabilities Underwriters Consider

Let’s break down the most common liabilities that impact your DTI ratio:

Student Loans

Student loans are often one of the biggest liabilities homebuyers face. In 2024, here’s how they’re treated under various loan programs:

FHA and USDA Loans:

• Lenders use either the payment amount on your credit report or 0.50% of the loan balance if no payment is listed.
• Borrowers can request a written statement from their loan provider for an extended payment plan, which often lowers monthly payment amounts.

Conventional Loans:

• Conventional loans allow income-based repayment (IBR) amounts to be used if the payment is documented on your credit report.

VA Loans:

• VA guidelines offer an important exemption for deferred student loans.
• If your loans have been deferred for 12 months or longer, they won’t be counted against you.
• Additionally, it’s worth noting that Income-Based Repayment (IBR) payments are not considered in this situation.
• Understanding the specifics can help you to make well-informed decisions about your financial options.

Pro Tip: If your student loans are high, consider consolidating or switching to an extended repayment plan to lower your DTI.

Car Payments

• When you’re looking to buy a home, it’s important to consider your car payments.
• For instance, a car payment of $400 each month can really affect how much house you can afford.
• That car payment is like losing $80,000 in your home-buying budget. So, if you’re planning to get a mortgage, it might be best to hold off on buying a new car for now.
• Remember, these car expenses are part of your liabilities in mortgage qualification, they can make a big difference in what kind of home loan you qualify for.

Revolving Debt

• Credit card balances are considered revolving debt.
• Lenders include the minimum monthly payment shown on your credit report in your DTI calculations.
• Paying down these balances before applying for a mortgage can improve your chances of approval.

Child Support and Alimony

• When you’re applying for a mortgage, one important thing to remember is your liabilities in mortgage qualification.
• This means any money you must pay regularly, like child support or alimony, counts against you.
• If you’re responsible for these payments, be prepared with proof, like documents, to show your lender.
• Having this information ready can help make the process smoother.

Contingent Liabilities

• Contingent liabilities happen when you agree to help someone else with their loan by co-signing. Even though this debt affects your debt-to-income ratio (DTI), you might be able to ignore it if:
• The main borrower has paid their loan on time for at least a year.
• You can show proof of these payments, like canceled checks or bank statements.

Special Situations: Deferred and Installment Debts

Deferred Student Loans

• While deferred student loans used to be excluded from DTI calculations, many loan programs now include them.
• Lenders use 0.50% of the balance for FHA and USDA loans unless a written payment plan is provided.

Installment Loans

• If you have less than 10 months remaining debts, they might not count against your debt-to-income (DTI) ratio, provided your credit profile is solid.
• However, underwriters might still consider these payments if they think they affect your capacity to handle future mortgage payments. It’s good to stay informed about how these factors work together!

Tips for Managing Liabilities Before Applying

Review Your Credit Report:

• It’s important to make sure all your debts are reported accurately.
• If you find any mistakes, don’t hesitate to dispute them.
• This will help you avoid any unnecessary increase in your debt-to-income ratio, which could impact your financial options in the future.

Pay Down Revolving Debt:

• Lowering your credit card balances can significantly improve your DTI.

Avoid New Debt:

• Don’t take on new loans or open credit accounts during the mortgage process.

Work with Your Student Loan Provider:

• If you have high student loan balances, request a fully amortized payment plan to lower your monthly obligations.

How Gustan Cho Associates Can Help

At Gustan Cho Associates, we’re dedicated to assisting borrowers who may face challenges in securing mortgages due to high liabilities or distinctive financial circumstances.

Mortgage underwriters must determine which obligations count, what monthly payment should be used, and whether a debt qualifies for exclusion under the applicable mortgage guidelines.

Our team at Gustan Cho Associates works with no overlays on government and conventional loans, offering more flexibility than traditional lenders. Whether you’re dealing with student loans, car payments, or other liabilities, we’re here to guide you every step of the way. Contact us today to explore your options.

Frequently Asked Questions About Liabilities in Mortgage Qualification:

Final Thoughts on Liabilities in Mortgage Qualification

Understanding liabilities in mortgage qualification is about much more than adding up the balances appearing on a credit report. Borrowers who have been denied due to high DTI or complex liabilities can contact Gustan Cho Associates for a second review.  Call or text us at 800-900-8569 or email gcho@gustancho.com today to find out how we can guide you through the mortgage process and help you qualify for the home you’ve always wanted! This Guide About “How Underwriters View Liabilities In Mortgage Qualification” Was Updated on August 15, 2026