Student loans fall into two general categories.
Federal Loans
Direct Subsidized Loans and Direct Unsubsidized Loans are federal student loans offered by the U.S. Department of Education (ED) to help eligible students cover the cost of higher education.
Direct Subsidized Loans are available to undergraduate students with financial need. The school determines the amount you can borrow, and the amount may not exceed your financial need. The U.S. Department of Education pays the interest on a Direct Subsidized Loan while you are in school at least half-time, for the first six months after you leave school (referred to as a grace period), and during a period of deferment (a postponement of loan payments).
Direct Unsubsidized Loans are available to undergraduate and graduate students; there is no requirement to demonstrate financial need. The school determines the amount you can borrow based on your cost of attendance and the other financial aid you receive. You are responsible for paying the interest on a Direct Unsubsidized Loan during all periods.