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Knowledge Hub / The Importance of a Good Debt to Income (DTI) Ratio
The Importance of a Good Debt to Income (DTI) Ratio

The Importance of a Good Debt to Income (DTI) Ratio

Finances & Credit
ELFI | November 15, 2019
The Importance of a Good Debt to Income (DTI) Ratio

It is evident to most people that having more income and less debt is good for their finances. If you have too much debt compared to income, any shock to your income level could mean you end up with unsustainable levels of debt. Every month you have money coming in (your salary plus additional income) and money going out (your expenses). Your expenses include your recurring bills for electricity, your cell phone, the internet, etc. There are also regular amounts that you spend on necessities, such as groceries or transportation. On top of all of this, there’s the money you spend to service any debts that you may have. These debts could include your mortgage, rent, car loan, and any student loans, personal loans, or credit card debt.

What is the Debt-to-Income Ratio (DTI)?

The Debt-to-Income Ratio (DTI) lets you see how your total monthly debt relates to your gross monthly income. Your gross monthly income is your total income from all sources before taxes and other deductions are taken out. Below is the formula for calculating your DTI:

DTI = (Total of your monthly debt payments/your gross monthly income) x 100

Example: Let’s suppose the following. Your gross monthly income is $5,000, and you pay $1,500 a month to cover your mortgage, plus $350 a month for your student loans, and you have no other debt. Your total monthly payments to cover your debts amounts to $1,850.

Your DTI is (1,850/5,000) x 100 = 37%

Here’s a handy calculator to work out your DTI.

Why is Your DTI Important?

Your DTI is an important number to keep an eye on because it tells you whether your financial situation is good or if it is precarious. If your DTI is high, 60% for example, any blow to your income will leave you struggling to pay down your debt. If you are hit with some unexpected expenses (e.g., medical bills or your car needs expensive repairs), it will be harder for you to keep on top of your debt payments than if your DTI was only 25%.

DTI and Your Credit Risk

DTI is typically used within the lending industry. If you apply for a loan, a lender will look at your DTI as an important measure of risk. If you have a high DTI, you will be regarded as more likely to default on a loan. If you apply for a mortgage, your DTI will be calculated as part of the underwriting process. Usually, 43% is the highest DTI you can have and likely receive a Qualified Mortgage. (A Qualified Mortgage is a preferred type of mortgage because it comes with more protections for the borrower, e.g., limits on fees.)

So, What is a Good DTI?

If 43% is the top level DTI necessary to obtain a Qualified Mortgage, what is a “good” DTI? According to NerdWallet, a DTI of 20% or below is low. A DTI of 40% or more is an indication of financial stress. So, a good rule of thumb is that a good DTI should be between these two figures, and the lower, the better.

The DTI Bottom Line

Your DTI is an essential measure of your financial security. The higher the number, the less likely it is that you’ll be unable to pay down your debt. If there are months when it seems that all your money is going toward debt payments, then your DTI is probably too high. With a low DTI, you will be able to weather any financial storms and maybe even take some risks. For example, if you want to take a job in a field you’ve always dreamed about but are hesitating because it pays less, it will be easier to adjust to a lower income. Plus, debt equals stress. The higher your DTI, the more you can begin to feel that you’re working just to pay off your creditors, and no one wants that.

DTI and Student Loan Refinancing

Your DTI is one of several factors that lenders look at if you apply to refinance your student loans. They may also assess your credit history, employment record, and savings. Refinancing your student loans may actually decrease your DTI by lowering your monthly student loan payment. This may help you, for example, if you want to apply for a mortgage. ELFI can help you figure out what your DTI is and if you are a good candidate for student loan refinancing.*

Learn More About Student Loan Refinancing