How interest works on Direct Unsubsidized Loans
Direct Unsubsidized Loans are available to undergraduate and graduate students regardless of financial need. Unlike Subsidized loans, the federal government does not pay the interest on unsubsidized debt while you are enrolled in school.
Interest begins accumulating the day your school disburses the loan funds and continues through enrollment, the 6-month post-graduation grace period, and any deferment or forbearance periods.
If you do not pay this interest as it accumulates, the total unpaid interest may be capitalized (added to your principal balance) when repayment officially begins, increasing the total loan amount on which future interest is calculated.
Worked example
Suppose you borrow $10,000 in a Direct Unsubsidized Loan at a fixed rate of 6.53% at the start of your freshman year.
Over four years of undergraduate study plus a 6-month grace period (4.5 years total), the loan accumulates approximately $2,938.50 in simple interest ($653 per year).
If left unpaid, this $2,938.50 capitalizes at repayment onset, creating a new principal balance of $12,938.50. On a standard 10-year plan, this capitalization increases your monthly payment from $113.73 to $147.15 and adds over $1,070 in extra interest charges over 10 years.
Strategies to prevent interest capitalization
You have the option to make interest-only payments while still enrolled in college. Paying just $54.42 per month on a $10,000 loan prevents any interest from capitalizing upon graduation.
Even paying a fraction of the monthly interest reduces the principal balance and keeps your post-graduate debt significantly lower.
Inputs for the unsubsidized loan interest calculator
Loan amount
The original principal disbursed for your Direct Unsubsidized Loan.
Interest rate
The statutory annual interest rate fixed for your disbursement.
In-school and grace duration
The total time from initial disbursement until repayment begins (typically 4.5 years for 4-year degrees).
CALCULATOR QUESTIONS
Calculate unsubsidized loan interest questions
Does unsubsidized loan interest capitalize every year?
No. Interest on federal student loans does not capitalize annually while enrolled. Capitalization generally only occurs once, at the conclusion of your 6-month grace period when standard repayment begins.
Can I pay off unsubsidized loan interest before graduation?
Yes. You can log into your federal loan servicer account at any time and make payments specifically earmarked for accrued interest.
What is the difference between subsidized and unsubsidized interest?
On subsidized loans, the US government subsidizes (pays) the interest while you are in school and during grace periods. On unsubsidized loans, the borrower is responsible for all interest from day one.
Are graduate student loans subsidized or unsubsidized?
All federal loans for graduate and professional students (Direct Unsubsidized and Direct PLUS) are unsubsidized.
Can I deduct unsubsidized loan interest on my taxes?
Yes. Interest paid on federal unsubsidized student loans is deductible up to $2,500 per year on IRS Form 1040, subject to MAGI phaseout limits.