Debt Ratios for Residential Financing

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Lenders use a ratio called "debt to income" to decide your maximum monthly payment after you've paid your other recurring loans.

About your qualifying ratio

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

The first number in a qualifying ratio is the maximum percentage of gross monthly income that can be applied to housing (including principal and interest, private mortgage insurance, hazard insurance, property taxes, and HOA dues).

The second number in the ratio is the maximum percentage of your gross monthly income that should be applied to housing expenses and recurring debt together. Recurring debt includes vehicle payments, child support and monthly credit card payments.

Some example data:

28/36 (Conventional)

  • Gross monthly income of $8,000 x .28 = $2,240 can be applied to housing
  • Gross monthly income of $8,000 x .36 = $2,280 can be applied to recurring debt plus housing expenses

With a 29/41 (FHA) qualifying ratio

  • Gross monthly income of $8,000 x .29 = $2,320 can be applied to housing
  • Gross monthly income of $8,000 x .41 = $3,280 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 Loan Qualification Calculator.

Just Guidelines

Remember these ratios are just guidelines. We'd be happy to pre-qualify you to help you figure out how large a mortgage loan you can afford.

At Crescent Mortgage, we answer questions about qualifying all the time. Give us a call at (713) 255-5587.


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