What’s My Debt-to-Income (DTI) Ratio?

Debt-to-Income (DTI) is one of the many new mortgage related terms many First-Time Home Buyers will get used to hearing.

DTI is a component of the mortgage approval process that measures a borrower’s Gross Monthly Income compared to their credit payments and other monthly liabilities.

Debt-to-Income Ratios are designed to give guidance on acceptable levels of debt allowed by particular lenders or programs.

There are actually two different Debt-to-Income Ratios that underwriters will review in order to determine if a borrower’s monthly income is sufficient to cover the responsibility of a mortgage according to the particular lender / mortgage program guidelines.

Most loan programs allow for a Total DTI of 43% and a Housing DTI of 31%.

Two Types of DTI Ratios:

a) Front End or Housing Ratio:

  • Should be 28-31% of your gross income
  • Divide the estimated monthly mortgage payment by the gross monthly income

b)  Back End or Total Debt Ratio:

  • Should be less than 43% of your gross monthly income
  • Divide the estimated house payment plus all consumer debt by the gross monthly income

Remember, the DTI Ratios are based on gross income before taxes.  Lenders also prefer to use W2’s or tax returns to verify income and employment.

However, the adjusted gross income is used to calculate DTI for self-employed borrowers on most loan programs.  Since there is room for interpretation on these guidelines, it’s important to review your personal income / employment scenario in detail with your trusted mortgage professional to make sure everything fits within the guidelines.


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March 28, 2010 by · Leave a Comment

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About Allen

Allen is President and Founder of First Trust Mortgage, a family owned, 15 year old, mortgage planning firm in Fort Lauderdale, Florida. First Trust Mortgage was founded in 1996 and provides residential mortgages in Florida. Allen's vision for First Trust Mortgage was based on two principles. First was to help his clients make informed decisions regarding residential mortgages. Second was to build long lasting relationships with his clients and referral partners. Over the past 5 years Allen has concentrated his education and efforts in the area of managing Real Estate equity through mortgage planning. Allen was one of the first certified mortgage planning specialists in the State of Florida and is a regular guest of Steve Pomegranate's "On The Money" radio program on NPR and Ray West's "Talk About Money" radio program on WAFG. Allen also teaches continuing education classes to certified financial planners and insurance professionals around the subject of managing equity in real estate. Allen graduated from the Pennsylvania State University in 1983. Allen has been lending in Florida since 1985 when he joined Great Western Bank (Washington Mutual) managing the company's Florida Commercial Real Estate Mortgage operation. In 1996 /1997 Great Western Bank was sold to Washington Mutual and Allen formed First Trust Mortgage Corporation. In 2003 Allen focused his practice on Strategic Real Estate Equity Management and is considered to be an expert on that topic. Allen practices personally the concepts he shares with the clients, peers and financial service providers. Allen exclusively participates in the residential mortgage industry and has purposely chosen to hold no other licenses even though he has participated and passed the class requirement for the Florida Real Estate Commission, Florida Mortgage Broker, Health, Life & Variable annuities license. Specialties Helping Consumers, Realtors and Financial Service Professionals Keep Current On Mortgage Trends and Provide Mortgage Solutions As Needed. In Addition I Love To Educate Seniors On The Use of Reverse Mortgages and First Time Homebuyers On How Much Payment Is Enough.

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