Financing a Home Resource Center
Credit, Debt & Underwriting

Mortgage Credit, Debt & Underwriting

Understand What Lenders Are Looking At

Last reviewed September 9, 2026

Quick Answer

Mortgage lenders evaluate more than a credit score. Qualification can depend on credit history, debt-to-income ratio, verified income, employment, assets, reserves, property and the requirements of the loan program.

There is no single DTI or credit-score number that guarantees mortgage approval.

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Guides in This Series

Ten full guides covering the credit, debt and underwriting side of the mortgage conversation, organized by the questions buyers actually ask.

DTI & the DTI Calculator

What Is Debt-to-Income Ratio and Why Does It Matter for a Mortgage? Front-end and back-end DTI, what counts as debt, and the examples that make it click. Debt-to-Income Ratio Calculator Estimate your front-end and back-end DTI and test what paying off a debt could do.

Credit Score, Credit History & Bad Credit

How Does Your Credit Affect a Mortgage? Why the score is only part of the picture, and how credit can affect pricing. What Credit Score Do You Need to Buy a House? Why there is no single number and how programs evaluate credit. Can You Buy a House With Bad Credit? Lower credit can make approval harder or more expensive, not impossible.

Student Loans, Car Payments & Paying Off Debt

How Do Student Loans Affect Mortgage Qualification? Deferred loans, income-driven repayment and how lenders count the payment. How Does a Car Payment Affect How Much House You Can Buy? The monthly obligation is the number that matters for DTI. Should You Pay Off Debt Before Buying a House? Sometimes paying debt helps; sometimes keeping the cash matters more.

What Not to Do Before Closing

What Should You NOT Do Financially Before Closing on a House? New cars, new credit, job changes and unexplained transfers: the classic mistakes.

Underwriting & Clear to Close

What Happens During Mortgage Underwriting? What underwriters review, conditional approval and why documents get requested again. What Does Clear to Close Mean? What CTC means, what happens after it, and when it is safe to celebrate.

Everything on this page is educational. Your lender determines credit standards, DTI treatment, pricing, overlays and final approval, and federal programs and lender guidelines change over time. Confirm current rules with an appropriately licensed mortgage professional and the applicable agency (CFPB, HUD/FHA, VA, USDA, Fannie Mae or Freddie Mac) before relying on any ratio or threshold.

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How Lisa Helps

Lisa is a Nevada REALTOR®, not a lender, underwriter or credit expert. The lender determines whether you qualify, the loan amount, the price, and the DTI and credit treatment. Lisa uses your buyer’s real approved payment range to shape the property search and helps compare true monthly ownership differences across homes, including HOA fees, special assessments, property taxes, insurance and assumable mortgage opportunities.

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Understand what lenders are looking at, then get the real number from a lender.

Run your own math first, know the questions to ask, and let Lisa connect that financing reality to the right properties.

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