How federal loans behave while you’re enrolled

  • In‑school deferment: If you’re enrolled at least half‑time in an eligible program, your federal loans are typically placed in in‑school deferment and you are not required to make payments while enrolled. This is described by Federal Student Aid (studentaid.gov).
  • Interest rules:
  • Subsidized loans (mainly for undergraduates) do not accrue interest while the borrower is in deferment.
  • Most graduate borrowing — Direct Unsubsidized Loans and Grad PLUS Loans — continues to accrue interest during in‑school deferment. Those interest amounts are usually added to your loan balance (capitalized) when you enter repayment or leave deferment, unless you pay the interest as it accrues. See Federal Student Aid on capitalization and deferment: https://studentaid.gov.
  • Grace period: After you graduate, drop below half‑time, or leave school, federal Direct Loans generally offer a 6‑month grace period before repayment is required. Confirm this with your servicer for each loan, since policies and exceptions can apply.

Private loans and variability

  • Private lenders set their own rules. Some private loans offer in‑school deferment; others require payments while you study. Interest often accrues during any deferment on private loans and may capitalize. Check your promissory note and contact the lender directly.
  • Consumer Financial Protection Bureau guidance can help compare private loan options and terms: https://www.consumerfinance.gov.

Interest capitalization — why it matters

  • When unpaid interest is added to your principal, future monthly payments are calculated on a larger balance. That raises the total interest you pay over the life of the loan.
  • Quick math example: A $40,000 unsubsidized loan at 6.8% accrues about $2,720 of interest in a year. If that interest is not paid and capitalizes, the new principal becomes $42,720 and future interest accrues on that higher amount.

Practical steps to reduce cost while enrolled

  1. Confirm enrollment reporting: Ask your school to report your half‑time status and notify your loan servicer to ensure in‑school deferment is applied. Errors can trigger unexpected billing. (See our guide on how servicers handle deferment.)
  2. Pay interest while in school where possible: Paying accrued interest on unsubsidized or private loans prevents capitalization and lowers long‑term cost.
  3. Reassess borrowing: If you can, borrow only what you need and prioritize federal options that offer income‑driven plans or forgiveness paths.
  4. Explore refinancing only after weighing federal protections: Refinancing federal loans into a private loan removes federal benefits like income‑driven repayment (IDR) and Public Service Loan Forgiveness.

Before repayment starts — a short checklist

  • Verify which loans are subsidized vs. unsubsidized and whether any private loans require payments now. (See our glossary entry: Loan Subsidized vs Unsubsidized.)
  • Ask your servicer for a payoff and a statement showing whether interest will capitalize at the end of deferment.
  • Decide if you will make interest‑only payments while enrolled or during the grace period.
  • If you plan to refinance after graduation, compare rates and weigh loss of federal protections.

Who typically qualifies for in‑school deferment

  • Students enrolled at least half‑time at an accredited institution in a degree or eligible certificate program usually qualify for federal in‑school deferment. Schools usually report enrollment directly to servicers; you can also provide documentation.

Internal resources on related topics

Sources and further reading

  • Federal Student Aid (U.S. Dept. of Education): https://studentaid.gov — pages on in‑school deferment, grace periods, and capitalization.
  • Consumer Financial Protection Bureau: https://www.consumerfinance.gov — advice on private student loans and lender comparisons.

Professional disclaimer: This article is educational and does not replace personalized financial, tax, or legal advice. For guidance tailored to your loans and situation, consult your loan servicer or a licensed financial advisor.

Author note: In my 15+ years advising borrowers, students who pay interest during school typically save the most over time because they avoid capitalization. Verify loan types early so you can plan before repayment begins.