Debt-to-Income Ratio Calculator

Your DTI ratio is the share of your gross monthly income that goes toward debt payments. Lenders use it to judge how much new debt, like a mortgage, you can realistically take on. It's usually shown as two numbers: front-end (housing only) and back-end (housing plus everything else).

Front-end DTI only counts your housing payment against your income. Back-end DTI adds in every other recurring debt — auto loans, student loans, credit cards, and so on. Mortgage lenders look at both; a low front-end ratio doesn't help much if heavy other debt pushes your back-end ratio too high.

A back-end DTI of 36% or under is generally considered strong and gives you the most flexibility across loan programs. Up to 43% is manageable and still qualifies for many mortgages. Above 43% usually requires a program with more flexible limits, like FHA, or strong compensating factors. Above 50% is very high and makes approval difficult with almost any lender.

Recurring, reported monthly obligations: your housing payment, auto loans or leases, student loans, minimum credit card payments, personal loan installments, and child support or alimony. Groceries, utilities, insurance premiums outside your housing payment, subscriptions, and other everyday spending don't count — DTI only looks at debt, not total expenses.

Gross income — your pay before taxes, insurance premiums, retirement contributions, and other deductions are taken out. Lenders calculate DTI this way because gross income is what's verifiable on a pay stub or tax return, not a budgeting exercise.

It depends on the loan program. Conventional loans manually underwritten typically cap back-end DTI at 36%, though automated underwriting can approve up to 45–50% with strong credit and reserves. FHA guidelines are 31% front-end / 43% back-end for manual underwriting, with allowances for compensating factors. VA loans use a 41% back-end guideline, above which lenders look more closely at residual income. This calculator checks your numbers against all four at once.

Either pay down or pay off recurring debts (a car loan or credit card balance), avoid taking on new monthly obligations before applying for a mortgage, or increase your income. Because DTI is a ratio, both sides move it — reducing debt has a faster, more direct effect than growing income for most people.

It can. Many lenders price loans in tiers, and a higher DTI — even one still under the program's maximum — can mean a slightly higher rate or additional conditions, since it signals less cushion in your monthly budget. A lower DTI generally gives you access to better pricing and more loan options.

No. DTI compares your monthly debt payments to your monthly income. Credit utilization compares your credit card balances to your credit limits and affects your credit score, not your DTI. Lenders look at both, but they measure different things.

It's easy to undercount "other debts" — a car payment you're used to, a student loan on a graduated repayment plan, or a store credit card minimum. Add up every recurring, reported payment (not the balance, just the required minimum monthly payment) and re-check; back-end DTI includes all of them, not just your mortgage or rent.