Paying down a car loan, student loan, or credit card balance lowers your back-end DTI directly — see the payoff timeline with the Loan Calculator.
These are common industry guideline bands, not a universal rule — actual requirements vary by lender, loan program, and your overall financial profile.
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Disclaimer
This calculator provides estimates for informational purposes only and does not constitute financial, medical, legal, or tax advice. Always consult a qualified professional about your specific situation.
How This Calculator Works
Debt-to-Income (DTI) ratio is your total monthly debt payments divided by your gross monthly
income, expressed as a percentage — the single number lenders lean on most when deciding how
much you can borrow, especially for a mortgage. Enter your gross monthly income, your monthly
housing payment, and your other recurring monthly debt payments below to see yours.
Two versions of the ratio matter: your back-end DTI counts every monthly debt payment
(housing plus everything else), while your front-end DTI counts housing costs alone. Lenders
typically look at both, since a low front-end ratio with a lot of other debt (car loans, student
loans, credit cards) can still add up to a back-end ratio that’s too high.
“Other monthly debt payments” means recurring debt obligations — car loans, student loans,
personal loans, and credit card minimum payments — not everyday variable spending like groceries
or utilities, which lenders don’t count toward DTI.
This calculator checks your back-end DTI against common mortgage-lending guideline bands:
Conventional loans typically cap around 36%, FHA loans around 43%, and VA
loans around 41% — alongside a front-end guideline of about 28%. These are widely-used
industry conventions, not a universal rule — individual lenders, loan programs, and your overall
financial profile (credit score, down payment, cash reserves) can all shift what’s actually
achievable.
Worked Example
A $7,000 gross monthly income, a $1,600 housing payment, and $500 in other monthly
debt payments:
Total monthly debt: $1,600 + $500 = $2,100.
Back-end DTI: $2,100 ÷ $7,000 × 100 = 30%.
Front-end DTI: $1,600 ÷ $7,000 × 100 ≈ 22.9%.
Both ratios clear the common Conventional (36%/28%), FHA (43%), and VA (41%) guideline bands,
meaning this borrower’s DTI profile is within typical lending guidelines for all three loan types.
Common Mistakes
Leaving out a debt because it’s not a traditional loan. Back-end DTI is meant to include
every recurring monthly obligation a lender would count — car payments, student loans, minimum
credit card payments, child support — not just mortgage-style installment loans.
Using net (take-home) income instead of gross income. DTI is conventionally calculated
against gross monthly income before tax and other withholdings, not the smaller number that
actually lands in a bank account.
Forgetting the new mortgage payment itself belongs in the calculation. When shopping for a
home, the housing payment used here should be the NEW payment being considered, not a current
rent or an existing smaller mortgage that’s about to be replaced.
Cómo funciona esta calculadora
La relación deuda-ingreso (DTI) es el total de tus pagos de deuda mensuales dividido entre tu
ingreso mensual bruto, expresado como un porcentaje — el número que más utilizan los
prestamistas al decidir cuánto puedes pedir prestado, sobre todo para una hipoteca. Ingresa tu
ingreso mensual bruto, tu pago mensual de vivienda y tus otros pagos de deuda mensuales recurrentes
a continuación para ver el tuyo.
Dos versiones de la relación importan: tu DTI back-end cuenta cada pago de deuda mensual
(vivienda más todo lo demás), mientras que tu DTI front-end cuenta solo los costos de
vivienda. Los prestamistas normalmente revisan ambas, ya que una relación front-end baja con mucha
otra deuda (préstamos de auto, préstamos estudiantiles, tarjetas de crédito) igual puede sumar una
relación back-end demasiado alta.
La fórmula
DTI back-end=Ingreso mensual brutoPago de vivienda+Otros pagos de deuda mensuales×100DTI front-end=Ingreso mensual brutoPago de vivienda×100
“Otros pagos de deuda mensuales” se refiere a obligaciones de deuda recurrentes — préstamos de
auto, préstamos estudiantiles, préstamos personales y pagos mínimos de tarjetas de crédito — no a
gastos variables cotidianos como comestibles o servicios públicos, que los prestamistas no cuentan
para el DTI.
Esta calculadora compara tu DTI back-end con las bandas de referencia habituales en préstamos
hipotecarios: los préstamos Convencionales normalmente tienen un tope alrededor del 36%,
los préstamos FHA alrededor del 43%, y los préstamos VA alrededor del 41% — junto
con una guía front-end de aproximadamente 28%. Estas son convenciones ampliamente usadas en la
industria, no una regla universal — los prestamistas individuales, los programas de préstamo y tu
perfil financiero general (puntaje de crédito, enganche, reservas de efectivo) pueden modificar lo
que realmente es alcanzable.
Ejemplo resuelto
Un ingreso mensual bruto de $7,000, un pago de vivienda de $1,600, y $500 en otros
pagos de deuda mensuales:
Deuda mensual total: $1,600 + $500 = $2,100.
DTI back-end: $2,100 ÷ $7,000 × 100 = 30%.
DTI front-end: $1,600 ÷ $7,000 × 100 ≈ 22.9%.
Ambas relaciones se mantienen dentro de las bandas de referencia habituales para préstamos
Convencionales (36%/28%), FHA (43%) y VA (41%), lo que significa que el perfil de DTI de este
prestatario está dentro de las guías de préstamo típicas para los tres tipos de préstamo.
Errores comunes
Omitir una deuda porque no es un préstamo tradicional. El DTI back-end debe incluir toda
obligación mensual recurrente que un prestamista contaría — pagos de auto, préstamos
estudiantiles, pagos mínimos de tarjetas de crédito, pensión alimenticia — no solo préstamos a
plazos de tipo hipotecario.
Usar el ingreso neto (a casa) en lugar del ingreso bruto. El DTI se calcula convencionalmente
sobre el ingreso mensual bruto, antes de impuestos y otras retenciones, no sobre la cifra menor
que realmente llega a la cuenta bancaria.
Olvidar que el nuevo pago hipotecario en sí debe incluirse en el cálculo. Al buscar una
vivienda, el pago de vivienda usado aquí debe ser el NUEVO pago que se está considerando, no la
renta actual ni una hipoteca más pequeña que está a punto de ser reemplazada.
Lower is generally better. Common lending guidelines cap back-end DTI (all monthly debt) around 36% for Conventional loans, 43% for FHA loans, and 41% for VA loans, alongside a front-end (housing-only) guideline around 28% — though individual lenders and loan programs vary, and a strong credit profile or larger down payment can sometimes offset a higher DTI.
What's the difference between front-end and back-end DTI?
Front-end DTI counts only your housing payment against your income. Back-end DTI counts ALL your monthly debt payments — housing plus car loans, student loans, credit card minimums, and other recurring debt. Lenders typically look at both, since a low front-end ratio can still come with a high back-end ratio if you carry a lot of other debt.
What counts as a "debt payment" for DTI?
Recurring debt obligations: your housing payment (rent or mortgage), car loans, student loans, personal loans, and minimum credit card payments. Everyday variable expenses like groceries, utilities, and insurance aren't counted toward DTI, even though they're real costs.
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