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DTI Calculator

Educational calculators — always consult a licensed professional before making financial decisions.

Your income and debts

01Gross income

Monthly pay before tax and deductions, from every source a lender can document. Both ratios are divided by this.

$
$100$1M
02Proposed housing payment

The full monthly payment on the home you are buying — a Loan Estimate lists it. Your current rent is left out, because the mortgage replaces it.

$
$0$100K

Front-end DTI 29.3%

03Other monthly debts

Required minimums as they appear on your credit report. Utilities, insurance and subscriptions are not debts and stay out.

Monthly car payment(s)?

Include all vehicle loans. Enter 0 if none.

$
$0$10K
Monthly student loan payment(s)?

Use current required monthly payment. Enter 0 if none.

$
$0$10K
Monthly credit card minimum payments?

Total minimums across all cards. Enter 0 if none.

$
$0$10K
Any other monthly debt payments?

Personal loans, medical debt, child support, alimony, etc. Enter 0 if none.

$
$0$50K

Total monthly debt $2,200 · back-end DTI 29.3%

Back-end DTI

29.3%

Borderline

Front-end DTI29.3% (Borderline)
Max housing (28% rule)$2,100
Max housing (36% rule)$2,700
Total monthly debt$2,200

Front-End DTI

29.3%

28%36%

Back-End DTI

29.3%

36%43%

Monthly debt summary

Gross monthly income$7,500
Proposed mortgage$2,200
Total monthly debt$2,200

DTI guidelines at a glance

Front-end ≤28% and back-end ≤36% is ideal. FHA allows up to 43% back-end. VA and some conventional loans allow 45–50% with strong credit.

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A full PDF breakdown of these numbers — yours to keep or hand to a contractor.

DTI is one factor in mortgage qualification. Lenders also consider credit score, assets, employment history, and loan type. Consult a licensed mortgage professional.

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DTI Calculator is built and maintained by the RealCostIQ editorial team. Cost ranges and rates are checked against published industry data and contractor quotes, and revised when the underlying figures move. Read our data methodology or more about who builds this. Every calculation runs in your browser — no account, and none of your inputs are stored.

Cost ranges and rates here are checked against contractor quotes and published industry data. If a number still looks off, email Support@RealCostIQ.com and we'll review and fix it.