Total household debt hit $18.8 trillion in Q4 2025, a $191 billion jump from the previous quarter, according to the Federal Reserve Bank of New York.
When debt exceeds income, lenders take notice. A high debt load relative to what you earn can block personal loan approvals, drive up interest rates, and limit your borrowing options.
That’s why the debt-to-income ratio is one of the first things lenders check. But what is it, and how do you calculate yours?
What Is Debt-to-Income Ratio?
Your debt-to-income (DTI) ratio compares your monthly debt obligations to your monthly gross income, and is measured as a percentage.
Types of DTI Ratio
Most loans use a single DTI to evaluate your debt obligations. Mortgage lenders, however, split this into two separate calculations.
- Front-end ratio only looks at your housing costs. This includes your mortgage payment, property taxes, and homeowners insurance.
- Back-end ratio covers all your monthly debt payments. That includes credit card debt, auto loan payments, and student loans.
What DTI Ratio Includes and Excludes
The inclusions and exclusions of the DTI ratio involve the following criteria:
Debt and Income Included
- Monthly mortgage payment or rent, property tax, and homeowners insurance
- Credit card minimums, personal loans, student loan payments, and car loans
- Monthly gross income, self-employment income, pensions, and investment income
- Alimony, child support, and Social Security benefits
Debt and Income Excluded
- Utility bills, groceries, and subscription services
- Medical bills not financed through loans
- Childcare expenses and retirement contributions
- One-time payments, unverifiable cash income, and temporary income sources
Why Is Debt-to-Income Ratio Important?
- Loan approval: Many lenders check your DTI ratio alongside your credit score and credit history before approving any application.
- Interest rates and fees: A high DTI typically results in higher interest rates, steeper fees, or a flat-out denial.
- Loan eligibility: A DTI in the mid-to-upper 40% range may still qualify you for a credit card, auto loan, or student loans, but stricter DTI limits can shut the door on a home loan.
- Borrowing limits: Once your DTI crosses 50%, credit options shrink considerably.
- Financial goals: The more income that goes toward debt payments, the less you have for savings and retirement.
How to Calculate Debt-to-Income Ratio?
Add your total monthly debt payments, divide the figure by your gross monthly income, then multiply by 100.
DTI ratio = (Total monthly debt payments ÷ gross monthly income) x 100
Let’s say you make $5,000 a month before taxes and budget $1,000 to pay down your credit card debt, car loans, and student loans. Your calculation looks like this:
DTI ratio = ($1,000 ÷ $5,000) x 100 = 20%
You can also use a free online DTI ratio calculator for faster calculation.
What Is a Good Debt-to-Income Ratio?
Most lenders want to see a DTI of 35% to 36%, but some will approve a mortgage loan with a DTI as high as 45%, or even up to 50% for an FHA loan.
Freddie Mac, for example, has a general cap of 36%, but this can go as high as 45% for eligible borrowers.
Fannie Mae follows a similar structure, with a 36% baseline, a 45% ceiling for qualifying borrowers, and up to 50% for loans run through its proprietary underwriting system.
How to Lower a Debt-to-Income Ratio
Lowering your debt-to-income ratio involves these steps:
Pay Down Existing Debt
Paying off high-interest credit cards and personal loans directly reduces your total monthly debt payments. As those balances drop, your debt-to-income ratio improves because less of your gross monthly income is going toward debt.
Increase Your Income
A raise or promotion increases your gross monthly income
Freelance or secondary work also supplements your primary earnings. Just a few hundred dollars a month can make an undeniable difference in your monthly income.
Avoid Taking on New Debt
Keeping new debt obligations off the table will preserve the progress you’ve already made.
Suspending any plans for a new loan or line of credit also prevents your total debt payments from increasing.
Using cash for your typical purchases allows you to keep your monthly debt low.
Refinance Existing Loans
You may be able to lower your interest rates substantially by refinancing your mortgage or auto loan. Lower rates mean smaller monthly payments.
Also, shopping around before accepting an offer allows you to negotiate better.
Budgeting and Expense Management
Reducing non-essential monthly expenses allows more money to go into debt repayment. Using those savings to help boost your total monthly payments on debt accelerates your payoff period.
Consider Debt Consolidation
Consolidating several debt payments into one loan simplifies your repayment schedule. It can even lower your overall interest rates in the process.
A single lower rate means more of every payment goes to the balance itself.
Consult a Financial Advisor
An advisor can determine which loan payments to prioritize and whether refinancing or consolidation is a good strategy for you.
Working with a professional also holds you accountable to a set plan.
Read More:
Frequently Asked Questions
Can I lower my DTI quickly?
Lowering your DTI quickly is possible but challenging. The fastest ways are paying down high-interest debt aggressively, avoiding new debt, or finding additional income sources like freelance work. However, meaningful DTI improvement typically takes several months of consistent effort.
What are common DTI mistakes?
A common mistake is forgetting to include all debts in your DTI calculation. Smaller debts like store credit cards or personal loans add to your total debt burden and should be accounted for accurately before applying for a mortgage.
Another frequent error is using net income instead of gross income when calculating your ratio, which inflates your DTI and gives you an inaccurate picture of where you stand.
How much is too much debt?
Most lenders consider a DTI above 43% too much debt, as it signals that a large share of your income is already committed to repayments.
Conclusion
Maintaining a good debt-to-income ratio gives you more power over your finances and choice in borrowing. Your effort to lower it now pays off when you seek a mortgage, personal loan, or any other credit in the future.
To get more resources and expert insights on loan applications and other finance topics related to loans, subscribe to Financial Daily Update today.
