Debt-to-Income Ratio

Your debt to income ratio is a formula lenders use to calculate how much money is available for your monthly home loan payment after you meet your other monthly debt payments.

Understanding the qualifying ratio

For the most part, underwriting for conventional mortgage loans needs a qualifying ratio of 28/36. FHA loans are a little less restrictive, requiring a 29/41 ratio.

In these ratios, the first number is the percentage of your gross monthly income that can be spent on housing costs. This ratio is figured on your total payment, including hazard insurance, HOA dues, PMI - everything.

The second number is the maximum percentage of your gross monthly income that can be spent on housing expenses and recurring debt. Recurring debt includes payments on credit cards, auto payments, child support, and the like.

For example:

28/36 (Conventional)

  • Gross monthly income of $6,500 x .28 = $1,820 can be applied to housing
  • Gross monthly income of $6,500 x .36 = $2,340 can be applied to recurring debt plus housing expenses

With a 29/41 (FHA) qualifying ratio

  • Gross monthly income of $6,500 x .29 = $1,885 can be applied to housing
  • Gross monthly income of $6,500 x .41 = $2,665 can be applied to recurring debt plus housing expenses

If you want to calculate pre-qualification numbers on your own income and expenses, use this Mortgage Pre-Qualification Calculator.

Guidelines Only

Don't forget these ratios are just guidelines. We will be thrilled to pre-qualify you to help you determine how large a mortgage you can afford.

Family Mortgage Company of Hawaii, Inc. NMLS #244497 can answer questions about these ratios and many others. Call us at (808) 935-0678.

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