WiseCalcs

Debt-to-Income Ratio Calculator - Calculate Your DTI

Calculate your debt-to-income ratio to understand your financial health and borrowing capacity. Our debt to income ratio calculator helps you assess whether your debt levels are manageable and what lenders might think of your application.

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Debt-to-Income Calculator

Calculator

Debt-to-Income (DTI) Calculator

Calculate your DTI ratios and check mortgage qualification. For US users: front-end/back-end ratios against Fannie Mae, FHA, and CFPB guidelines (2026). For Danish users: gældsfaktor against Finanstilsynet's god skik rules (BEK nr. 1514, 2023).

Gross income

Income before taxes and deductions.

Housing payment

Include mortgage or rent, property tax, insurance, and HOA fees.

Other monthly debt payments

Include minimum payments on credit cards, auto loans, student loans, and personal loans.

Back-end DTI (total DTI)
39.2%
Good
You should qualify for most conventional mortgages, including Qualified Mortgages under the 43% CFPB threshold.
Front-end DTI
27.7%
Housing costs only
Target: ≤ 28%
Total monthly debt payments
$2,550
of monthly income: $6,500
Housing: $1,800 · Other debts: $750

2026 qualification benchmarks (back-end DTI)

28/36 rule — ideal36%
CFPB Qualified Mortgage ceiling43%
Fannie Mae DU maximum50%
FHA automated underwriting maximum57%

Room for additional monthly debt

Stay within 36% (ideal)$0
Stay within 43% (CFPB QM)$245

Estimates only — based on 2026 lending guidelines (Fannie Mae, FHA, CFPB). Actual qualification depends on credit score, reserves, employment, and loan program. Consult a licensed mortgage adviser.

What is Debt-to-Income Ratio?

Debt-to-income ratio (DTI) measures the percentage of your gross monthly income that goes toward paying debts. This financial metric helps lenders assess your ability to manage monthly payments and repay borrowed money. A lower DTI indicates better financial health and makes you more attractive to lenders.

Your DTI includes all recurring monthly debt payments such as mortgage or rent, credit card minimum payments, personal loans, student loans, car payments, and other fixed debt obligations. It does not include everyday expenses like groceries, utilities, or insurance premiums unless they are financed debt payments.

Lenders use DTI as a key factor when evaluating loan applications because it provides insight into your financial stability and risk level. Understanding your DTI helps you make informed decisions about taking on new debt and managing your existing obligations.

The DTI Formula

Calculating your debt-to-income ratio uses a straightforward formula:

DTI=Total Monthly Debt PaymentsGross Monthly Income×100\text{DTI} = \frac{\text{Total Monthly Debt Payments}}{\text{Gross Monthly Income}} \times 100

Your total monthly debt payments include all recurring debt obligations, while gross monthly income is your pre-tax income from all sources. The result is expressed as a percentage.

For example, if your total monthly debt payments are $2,400 and your gross monthly income is $8,000, your DTI would be 30%. This calculation gives lenders a clear picture of how much of your income is already committed to debt payments, helping them determine your capacity for additional borrowing.

Step-by-Step DTI Example

Let's calculate the DTI for Sarah, who earns $6,500 monthly before taxes. Her monthly debt payments include: mortgage payment of $1,800, car loan payment of $450, student loan payment of $280, and credit card minimum payments totaling $170.

First, add up all monthly debt payments: $1,800 + $450 + $280 + $170 = $2,700. Next, divide this by her gross monthly income: $2,700 ÷ $6,500 = 0.415. Finally, multiply by 100 to get the percentage: 0.415 × 100 = 41.5%.

Sarah's DTI of 41.5% indicates that nearly 42% of her gross income goes toward debt payments. This relatively high ratio might make it challenging to qualify for additional credit or loans from some lenders.

How to Use the Calculator

Using our debt to income ratio calculator is simple and takes just a few minutes. Start by gathering information about your monthly income and debt payments. Enter your gross monthly income, which includes salary, bonuses, freelance income, rental income, and other regular sources before taxes.

Next, input all your monthly debt payments including mortgage or rent, car loans, student loans, credit cards, personal loans, and any other recurring debt obligations. The calculator will instantly compute your DTI percentage and provide guidance on what the ratio means for your financial health.

The tool also shows how different debt levels would affect your ratio, helping you understand the impact of paying down existing debt or taking on new obligations.

Understanding DTI Thresholds

Different types of lenders and loans have varying DTI requirements, but general guidelines can help you assess your financial position. A DTI below 20% is considered excellent and indicates strong financial health with plenty of room for additional borrowing. DTI between 20-36% is generally acceptable to most lenders and suggests manageable debt levels.

A DTI between 37-42% may limit your borrowing options, as some lenders consider this elevated risk. Many mortgage lenders prefer to see DTI below 43%, though some programs allow higher ratios with compensating factors like excellent credit scores or substantial savings.

DTI above 43% can significantly restrict your ability to qualify for new credit, particularly mortgages. If your ratio falls in this range, focus on paying down existing debt before applying for new loans to improve your chances of approval and secure better interest rates.

Improving Your Debt-to-Income Ratio

Reducing your DTI requires either increasing your income or decreasing your debt payments. On the debt side, focus on paying down high-interest debt first, such as credit cards, which can quickly reduce your monthly obligations. Consider debt consolidation if it results in lower monthly payments, but be cautious about extending repayment terms significantly.

Increasing your income through salary negotiations, side work, or passive income streams can also improve your DTI. Even small increases in monthly income can have a meaningful impact on your ratio and borrowing capacity.

Avoid taking on new debt when your DTI is already high, as this will worsen your ratio and potentially damage your credit score if payments become difficult to manage. Instead, focus on building an emergency fund and paying down existing obligations before considering new financial commitments.

Frequently Asked Questions

A DTI below 20% is considered excellent, while 20-36% is generally acceptable to most lenders. DTI above 43% may significantly limit your borrowing options, particularly for mortgages. Most lenders prefer to see DTI below 40% for optimal loan terms and approval chances.
Include all recurring monthly debt payments such as mortgage or rent, car loans, student loans, credit card minimum payments, personal loans, and other fixed debt obligations. Do not include utilities, groceries, insurance, or other living expenses unless they are financed debt payments.
Always use gross monthly income (before taxes) for DTI calculations. This includes salary, bonuses, freelance income, rental income, and other regular income sources. Lenders use gross income because it provides a consistent baseline before individual tax situations.
The fastest way is to pay down high-interest debt like credit cards, which reduces monthly minimum payments. You can also increase income through side work or salary negotiations. Avoid taking on new debt while working to improve your DTI ratio.
Yes, DTI is a crucial factor in mortgage approval. Most lenders prefer DTI below 43%, though some programs allow higher ratios with strong compensating factors like excellent credit scores or substantial down payments. Lower DTI typically means better loan terms.
Only include your partner's finances if you're applying for joint credit or loans together. For individual applications, use only your own income and debts. For joint applications, combine both incomes and all debt obligations from both parties.
Check your DTI every few months or before applying for new credit. Recalculate after major financial changes like paying off loans, getting salary increases, or taking on new debt. Regular monitoring helps you maintain healthy financial ratios and prepare for loan applications.