Your debt to income (DTI) ratio is an important factor to be aware of when you apply for a mortgage.
If your DTI is too high, you’ll have trouble qualifying for a conventional loan. A study done by the Federal Reserve revealed that excessive debt was the leading reason for mortgage denials.
Calculating DTI
Your debt to income (DTI) ratio is all your monthly debts, divided by your monthly income. Creditors use this calculation, plus your credit history, to evaluate whether you will be able to manage your mortgage payments.
A DTI below 20% is very good and signifies low financial stress. By contrast, a DTI above 50% is considered higher risk and can suggest that the borrower may have trouble saying on top of their payments.
Example
A mortgage applicant has a $350 car payment, $150 student loan payment, and a minimum credit card payment of $500. He or she has a gross monthly income of $5,000, resulting in a DTI of 20%.
= ((350 + 150 + 500) / 5000) * 100
= (1000 / 5000) * 100
= 0.20 * 100
= 20%
The home the applicant is interested in would result in a monthly mortgage payment of $1,000, pushing the applicant’s DTI to 40%.
= ((350 + 150 + 500 + 1000) / 5000) * 100
= (2000 / 5000) * 100
= 0.40 * 100
= 40%
DTI Requirements
Each mortgage lender can have different debt to income requirements.
Fannie Mae (a leading source of financing for mortgage lenders) only accepts conventional loans up to 36% DTI, or 50% DTI if the borrower meets specific credit requirements.
This is important because many creditors sell their conventional mortgage products to Fannie Mae and Freddie Mac to free up working capital.