Debt Ratios for Residential Financing

Lenders use a ratio called “debt to income” to determine your maximum monthly payment after your other monthly debts have been paid.

About the qualifying ratio

Usually, conventional mortgages need a qualifying ratio of 28/36. An FHA loan will usually allow for a higher debt load, reflected in a higher (29/41) ratio.

The first number in a qualifying ratio is the maximum amount (as a percentage) of your gross monthly income that can be spent on housing costs (this includes mortgage principal and interest, PMI, hazard insurance, property tax, and HOA dues).

The second number in the ratio is the maximum percentage of your gross monthly income that can be applied to housing costs and recurring debt together. For purposes of this ratio, debt includes payments on credit cards, vehicle payments, child support, etcetera.

Modern house with glazed arbor

For example:

28/36 (Conventional)

  • Gross monthly income of $3,500 x .28 = $980 can be applied to housing
  • Gross monthly income of $3,500 x .36 = $1,260 can be applied to recurring debt plus housing expenses

With a 29/41 (FHA) qualifying ratio

  • Gross monthly income of $3,500 x .29 = $1,015 can be applied to housing
  • Gross monthly income of $3,500 x .41 = $1,435 can be applied to recurring debt plus housing expenses

If you want to calculate pre-qualification numbers with your own financial data, we offer a Loan Qualification Calculator.

Guidelines Only

Remember these ratios are only guidelines. We will be thrilled to pre-qualify you to determine how much you can afford.

The Mortgage Exchange Service LLC can walk you through the pitfalls of getting a mortgage.

Basic Pre-Approval

Get the Best Mortgage Rate! Tell us a little about your current needs and we can use that information to match you with just the right loan.

Tell us about your loan needs.
How can we get in touch with you?
Tell us about your credit history.