What is the maximum Back-End DTI allowed for conventional mortgages?

Conventional Fannie Mae loans generally require a back-end DTI of 43% to 45% (up to 50% with strong credit and automated underwriting approval).

How can I quickly lower my Debt-to-Income (DTI) ratio before applying for a mortgage?

Pay off small recurring installment loans, eliminate revolving credit card balances, or increase documented gross income with a co-borrower.

États-UnisMortgage Debt-to-Income (Front & Back DTI)Finance

US Mortgage Underwriting Debt-to-Income (DTI) Ratio Calculator

Calculate your Front-End Housing DTI (maximum 28% guideline) and Back-End Total Debt DTI (36% conventional / 43% QM / up to 50% FHA limit) for Fannie Mae, Freddie Mac, FHA, and VA home loan pre-approval.

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Données du Simulateur

En temps réel

Gross Monthly Household Income ($/mo)

$/mo

Sélection rapide :

Proposed Monthly Housing Payment (PITI + HOA) ($/mo)

$/mo

Sélection rapide :

Other Monthly Debt (Auto, Student Loans, Min Credit Cards) ($/mo)

$/mo

Sélection rapide :

Résultat CalculéMortgage Debt-to-Income (Front & Back DTI)

Back-End Total Debt-to-Income (DTI) Ratio

33.7%

Front-End Housing DTI Ratio (%)

25.8 %

Monthly Debt Headroom Remaining (to stay under 43% DTI)

885 %

Détail du Calcul

Housing PITI

2,450 %

Total Monthly Debt

3,200 %

Front-End DTI

25.8 %

Back-End DTI

33.7 %

Méthodologie de Calcul

Front-End DTI% = (Total Monthly Housing PITI / Gross Monthly Income) * 100. Back-End DTI% = ((Housing PITI + Auto Loans + Student Loans + Min Credit Cards) / Gross Monthly Income) * 100.

Avertissement Légal et Pédagogique

Lenders compare gross monthly income to minimum monthly recurring debt payments. Conventional loans prefer total DTI under 43% (up to 45-50% with automated underwriting approval).

Ce simulateur est conçu à des fins éducatives et informatives. Les résultats ne constituent pas un conseil financier, fiscal ou juridique contraignant.

Foire Aux Questions

Front-End DTI measures proposed housing costs against gross monthly income. Back-End DTI measures total monthly debt payments (housing + auto + student loans + credit cards).

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États-Unis

US Mortgage Underwriting Debt-to-Income (DTI) Ratio Calculator

Données du Simulateur

Détail du Calcul

Méthodologie de Calcul

Avertissement Légal et Pédagogique

Foire Aux Questions

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