The interest rate for a Federal Stafford Loan Consolidation is set according to a formula established by federal statute. The fixed rate is based on the weighted average of the interest rates on the loans at the time you consolidate, rounded up to the nearest one-eighth of a percent. The interest rate does not exceed 8.25 percent. The consolidation rate is fixed for the life of the loan, which protects you from future increases in variable rate loans but prevents you from benefiting from future decreases in variable rates.
Borrowers with Stafford Loans issued on or after July 1, 1995, can reduce the consolidation rate by up to half a percentage point or more by consolidating before the end of the grace period.

Repayment of Consolidation Loans begins within 60 days of the disbursement of the loan. The payback term ranges from 10 to 30 years, depending on the amount of education debt being repaid and the repayment option you select. Education loans not included in the Consolidation Loan are considered in determining the maximum payback period. You may elect to repay your loans under a shorter period than the maximum allowed.
Borrowers that apply for a Federal Stafford Loan Consolidation will not have to pay any application fees or prepayment penalties. Borrowers may be subject to a credit check for adverse credit history.

You should keep in mind that although a Federal Stafford Loan Consolidation can simplify loan repayment and lower your monthly payment, it also can significantly increase the total cost of repaying your loans. Consolidation offers lower monthly payments by giving borrowers up to 30 years to repay their loans. So, you'll make more payments and pay more in interest. In fact, in some situations consolidation can double your total interest expense. If you don't need monthly payment relief, you should compare the cost of repaying your unconsolidated loans against the cost of repaying a consolidation loan. You also should take into account the impact of losing any borrower benefits offered under non-consolidated repayment plans. Borrower benefits, which may include interest rate discounts, principal rebates, or some loan cancellation benefits can significantly reduce the cost of repaying your loans.
Once made, Federal Stafford Loan Consolidation Loans cannot be changed. That's because the loans that were consolidated have been paid off and no longer exist. Take the time to study your consolidation options before you submit your application.