Key Terms and Concepts Fixed vs. Variable Rates
How Interest Works How to Choose the Right Loan
You've been through the tests, applications, and nail-biting anticipation of getting into college or graduate school. And you may have spent a lot of time researching your options to figure out which school is the best fit. Fortunately, there's no big test for your next important decision—choosing your student loan and lender.
Learning how student loan interest works, how interest rates are determined, and what to expect can help you make an educated decision before accepting a loan offer.
Key Terms and Concepts |
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Principal Balance |
Principal is the original or unpaid amount of a loan upon which interest is calculated. It may include capitalized interest. | |
Interest |
Interest is the amount of money charged to borrow money over time. Interest is generally stated as an annual percentage of the principal amount owed. The loan's interest rate determines how much interest accrues on your principal balance. | |
Accrued Interest |
The amount of interest that accumulates on the unpaid principal balance of a loan. Typically, it is calculated daily. | |
Annual Percentage Rate (APR) |
A percentage which represents the annualized cost of credit for a loan including finance charges (interest, fees, and other charges). | |
Capitalization |
The process of adding the unpaid, accrued interest to the principal balance of a student loan when the borrower postpones paying interest during a deferment or forbearance. This will increase the principal balance due on your loan, the amount of your monthly payment, and the total cost of your loan. | |
Grace Period |
A period of time when the borrower is not required to make student loan payments. It’s usually six or nine months after you cease to be enrolled in school at least half-time. | |
When you apply for a private student loan, you may have the choice of selecting either a fixed or variable interest rate.
A fixed interest rate will remain the same throughout the life of the loan. It gives you the protection of knowing how much you will pay each month, but could mean you pay more over the life of your loan because fixed interest rates tend to start higher than variable interest rates. If you want predictable monthly payments and stability, a fixed interest rate may be the best option for you.
In contrast, a variable rate is an interest rate that may change periodically throughout the life of the loan. Variable interest rates are tied to an index. If the index changes, your loan’s interest rate will fluctuate with the corresponding index.
The interest rate chart is for illustrative purposes only and does not reflect specific past or future performance.
Increases in the interest rate on a variable rate loan could impact your budget. If your interest rate increases, your monthly payments will increase, and that can be challenging when you are balancing your monthly budget.
Did You Know?
If you choose a variable interest rate loan, your rate will not be exactly the same as the rate index.
That’s because variable rates are made up of two components: the index rate and an additional rate or range of rates that lenders add based on several lending criteria.
Changes in interest rate indexes can be hard to predict since all sorts of complex factors like the economy and inflation influence them. Since variable interest rate increases are unpredictable, your monthly payment may increase during the life of your loan.
Whether you're looking for a fixed or variable rate student loan, your interest rate will be determined after you apply. How the interest rate is determined can depend on several factors.
Federal student loans have fixed interest rates. Federal law sets the rates, which vary depending on the type of loan and when you first receive your disbursement, but not your creditworthiness.
For private student loans, rates can vary depending on the lender and your creditworthiness, which may include your credit score, credit history, income, and other outstanding debt. These can also play a significant role in determining your eligibility for a loan and the rate you receive.
Having a creditworthy cosigner, especially if you don’t have an established credit history, may improve your likelihood for loan approval and may lower your interest rate. Even if you qualify on your own, you may receive a lower interest rate by adding a cosigner.
Most lenders allow you to postpone making payments while enrolled in school at least half-time and during your grace period. While you are in school and during your grace period, interest accrues daily. When it’s time to start making payments, the accrued interest is added to your principal balance—or "capitalized." Your interest rate will apply to this new, larger principal balance. This will increase the amount of your monthly payment and the total cost of your loan.
If you choose an in-school repayment option, you can reduce the amount of interest by making payments while in school and during your grace period. Regardless of which repayment option you choose, you can always make payments at any time with no pre-payment penalty.
With an understanding of key terms and concepts, and how student loan interest works, you can start evaluating private student loans and comparing lenders. To determine which lenders are a good fit, look at the loan options, APR ranges, and additional benefits.
Did You Know?
The APR may be higher or lower than the interest rate offered.
When comparing student loan options, look at the APR. It reflects the annualized cost of credit and includes finance charges such as interest, fees and other charges, and considers whether payments are deferred during school. Because it includes these variables, comparing APRs from different lenders can help you determine which option is potentially the cheapest.
How are federal and private student loans different? Read how interest rates, origination fees, and other factors differ with Discover Student Loans.
Learn how to take advantage of different types of financial aid available, like scholarships and grants, to help pay for school before taking out student loans.
Find out how to compare financial aid letters with Discover Student Loans. Learn more about the differences in financial aid packages including loans, grants, and scholarships.
Some assets you own are reportable on the FAFSA while others are not. Learn more about how assets affect financial aid from Discover Student Loans.
The advertised interest rate for student loans can be confusing. Here are tips from Discover Student Loans that can help you compare interest rates.
Learn more about the CSS Profile along with the college requirements used to determine eligibility for institutional aid.
Learn about the different federal student loan choices for college. Compare federal and private student loans and find the best loan for you.
Don’t let these FAFSA myths stop you from completing the application. You may be eligible for more financial aid than you think.
