In the United States both the Federal Family Education Loan Program (FFELP) and the Federal Direct Student Loan Program (FDLP) include consolidation loans that allow students to consolidate Stafford Loans, PLUS Loans, and Federal Perkins Loans into one single debt. This results in reduced monthly repayments and a longer term for the loan. Unlike the other loans, consolidation loans have a fixed interest rate for the life of the loan.

In the United States, federal student loans are consolidated somewhat differently, as federal student loans are guaranteed by the U.S. government. In a federal student loan consolidation, existing loans are purchased and closed by a loan consolidation company or by the Department of Education (depending on what type of federal student loan the borrower holds). Interest rates for the consolidation are based on that year's student loan rate, which is in turn based on the 91-day Treasury bill rate at the last auction in May of each calendar year.

Student loan rates can fluctuate from the current low of 4.70% to a maximum of 8.25% for federal Stafford loans, 9% for PLUS loans. The current consolidation program allows students to consolidate once with a private lender, and reconsolidate again only with the Department of Education.[citation needed] Upon consolidation, a fixed interest rate is set based on the then-current interest rate.