Ratio of Debt to Income

Lenders use a ratio called "debt to income" to determine the most you can pay monthly after you've paid your other monthly loans.

Understanding the qualifying ratio

Usually, underwriting for conventional loans 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 is how much (by percent) of your gross monthly income that can go toward housing costs. This ratio is figured on your total payment, including homeowners' insurance, homeowners' dues, Private Mortgage Insurance - everything that constitutes the payment.

The second number in the ratio is what percent of your gross income every month which can be spent on housing expenses and recurring debt. Recurring debt includes credit card payments, auto/boat payments, child support, et cetera.

For example:

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 run your own numbers, feel free to use our Loan Qualifying Calculator.

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

The second number is the maximum percentage of your gross monthly income that can be applied to housing expenses and recurring debt. Recurring debt includes things like car loans, child support and monthly credit card payments.

For example: 

With a 28/36 qualifying ratio:

• 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 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

Simply guidelines

Remember these are just guidelines. We’d be happy to pre-qualify you to determine how large a mortgage loan you can afford.  We look forward to helping you buy your dream home.