Back-end DTI here means total minimum monthly debt payments ÷ gross monthly income, expressed as a percent ((debt ÷ income) × 100). Front-end ratios (housing-only vs income) and which debts belong in the numerator differ by lender and loan program. Related pages run separate arithmetic only: Mortgage calculator, Loan calculator, APR calculator.
Definitions (informational)
Front-end DTI — Some underwriting contexts compare housing-related payment to gross income; exact definitions vary.
Back-end DTI — Total recurring debt payments compared to gross income; included debts vary.
Figures in third-party sources — Articles and program materials sometimes reference percentages such as 28%, 36%, or 43%; they are not universal rules.
This page does not assess creditworthiness or eligibility. For requirements that affect you, refer to official loan/program disclosures or a qualified professional.
Arithmetic examples
$5,000 gross income, $1,200 debts → DTI ≈ 24%.
$6,500 gross income, $2,600 debts → DTI = 40%.
Result
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How this calculation works
What each input means
Monthly gross income — Denominator for the ratio.
Monthly debt payments — Total recurring minimum payments you choose to include (credit cards, auto, housing, other installment debt, etc.). Which debts belong in the ratio depends on the lender or program.
Front-end vs back-end: Some lenders emphasize housing payment vs income (“front-end”) separately from all debts (“back-end”). This page uses one combined debts field.
Lenders use underwriting-specific definitions; this is not a credit decision.
How this result is estimated
This debt ratio calculator applies the formulas described on this page to the values you enter. Outputs are not financial, tax, legal, or medical advice.
Inputs are user-provided and may include rounding.
Where accuracy, eligibility, or obligations matter, rely on official disclosures and licensed professionals.
Last reviewed: 2026-04-17
Frequently asked questions
Is this calculator result exact?
It is an estimate based on your inputs and may differ from official or provider-specific calculations.
Does this site provide financial, tax, or legal advice?
No. Each tool applies explicit formulas to values you supply. Financial, tax, and legal conclusions belong with licensed professionals and official documents.