WithU Insights | Smart, Personal Finance Tips

How Do Student Loans Work?

Written by WithU Insights Team | June 26, 2026

College is expensive, there’s no question about it. From courses to living expenses to books, the fees for an education add up fast. A student loan allows you to borrow money to pay for higher education, which you must repay in monthly installments. These monthly payments include the money you borrow plus interest and fees.

Understanding how student loans work can make the process of borrowing and repaying money a lot more manageable. This guide breaks things down into simple terms so you can feel confident as you explore your options.

What Are the Types of Student Loans?

There are two main categories of student loans: federal student loans and private student loans.

Federal Student Loans

Federal Loans are offered by the U.S. government to help students cover the cost of their education and are typically paid out at each semester. There are several different types of federal loans, but they all have common traits, like fixed interest rates, flexible repayment options, and borrower protections such as income-driven repayment and possible loan forgiveness. For federal loans, you typically do not need to undergo a credit check.

Common types of federal loans include:

Direct Subsidized Loans: Undergraduate students with financial need can take out these loans, in which the government pays the interest while you're in school and during the six months following your graduation.

Direct Unsubsidized Loans: Available to undergraduate, graduate, and professional students, these loans accrue interest at all times. However, these loans do offer higher loan limits.

Direct PLUS Loans: If you’re a graduate student, professional student, or parent of an undergraduate, you may qualify for the PLUS loan program. These require a credit check and usually have higher interest rates and fees.

Direct Consolidation Loans: Combine multiple federal loans into a single payment.

Tip for Borrowers: Federal loans are generally recommended first because they tend to offer the best protections and repayment flexibility. If you don’t qualify for federal loans or have already exhausted your options, then consider a private loan.

Private Student Loans

Private loans come from banks, credit unions, or online lenders. They often require strong credit history or a cosigner. Interest rates vary and can be fixed or variable, and repayment options are usually more limited than federal loans.

Most experts advise using private loans only after all federal aid options have been maxed out, since private loans offer fewer relief options.

How To Get a Student Loan

The FAFSA, or Free Application for Federal Student Aid, is the form you complete to access federal student loans, grants, and work-study opportunities. It is the gateway to nearly all federal aid.

The FAFSA helps determine:

  • How much federal aid you qualify for

  • Eligibility for federal loans

  • Eligibility for federal grants and scholarships (which don’t need to be repaid)

  • Work-study opportunities that allow you to earn money while in school

You can also learn about additional financial aid options, such as grants, scholarships, and work-study programs, through government resources.

Tip for Borrowers: Many schools and state aid programs offer financial aid on a first-come, first-served basis, so be sure to complete the FAFSA as early as possible to maximize your aid opportunities.

Types of Repayment Plans

Repaying student loans doesn’t have to be a one-size-fits-all approach. Federal loans offer several repayment plans based on your goals, financial situation, and the type of loan.

Tools like the Federal Student Aid’s Loan Simulator can help you compare monthly payment amounts, total repayment cost, and potential forgiveness options.

Standard Repayment Plan

  • Fixed payments of at least $50 for up to 10 years

  • Usually the fastest way to pay off your loans

  • The automatically assigned plan if you do not select otherwise

Graduated Repayment Plan

  • Payments start low and increase every two years

  • Loans are paid off within 10 years

  • Good for borrowers who expect their income to grow

Extended Repayment Plan

  • Fixed or graduated payments over up to 25 years

  • Lowers monthly payments but increases total interest

  • You must have more than $30,000 in outstanding Direct or FFEL loans to qualify

Tip for Borrowers: Interest accrues fast, so borrow only what you need to avoid unnecessary debt.

Income-Driven Repayment (IDR) Plans

IDR plans base your monthly payment on your income and family size, allowing you to set your monthly student loan payment to what you can afford based on your earnings. There are three different plans available with varying monthly payments and repayment periods.

Plans include:

  • Income-Based Repayment (IBR) Plan

  • Income-Contingent Repayment (ICR) Plan

  • Pay As You Earn (PAYE) Repayment Plan

These plans can lead to loan forgiveness after 20–25 years, depending on the plan.

How to Calculate Interest on Student Loans

Understanding how interest works can help you manage your debt effectively. For a federal student loan, your interest can vary depending on the type of loan and the first disbursement date of the loan. When calculating your interest, keep in mind that student loan interest usually accrues daily.

Here’s the formula federal lenders use:

Daily Interest = (Loan Balance × Interest Rate) ÷ 365

For example, if you owe $10,000 with a 6% interest rate, you’ll multiply 10,000 x 0.06 to see your annual rate and then divide by 365 to see your daily rate.

Tips for Borrowers: Make interest-only payments on your student loans before you graduate to save money in the long run.

Subsidized vs. Unsubsidized Interest

If you qualify for a Direct Subsidized Loans, the government pays your interest while you're in school, in deferment, and for a six-month grace period after you graduate. With Direct Unsubsidized Loans, interest builds at all times, and you are responsible for paying that balance.

If You’re Struggling to Repay Your Loan

Even once you’ve graduated and moved on with your life, you have a legal obligation to continue paying off your student loans. If you miss multiple payments and your loan goes into default, it can have serious consequences, like damage to your credit report, having your tax return withheld, or even legal action from a collection agency.

If you’re struggling to make your payments, contact your loan servicer to see what options they have available.

The Bottom Line

A student loan is an investment in your education and your future. With the right planning and knowledge, you can take on the cost of college with confidence and set yourself up for long-term financial success.