Federal vs. Private Student Loans
Federal student loans come with fixed rates set by Congress each year and offer protections private loans typically don't — income-driven repayment plans, deferment, forbearance, and potential forgiveness programs. Private student loans, issued by banks or credit unions, are priced based on the borrower's (or cosigner's) credit and usually offer fewer flexible repayment options if financial hardship hits.
Standard vs. Income-Driven Repayment
The standard repayment plan spreads federal loan payments evenly over 10 years. Income-driven repayment plans instead cap monthly payments at a percentage of discretionary income, extending the term (often to 20-25 years) — which lowers monthly payments but usually increases total interest paid over the life of the loan.
Why Extra Payments Matter So Much on Student Loans
Because student loan terms often run 10 years or longer, even a modest extra payment compounds into significant interest savings — every extra dollar paid toward principal stops accruing interest for the rest of the loan. Directing extra payments to the highest-interest loan first (if you have multiple loans) generally saves the most money overall, a strategy known as the debt avalanche method.
The Interest Capitalization Trap
Unpaid interest on federal loans can "capitalize" — get added to the principal balance — when deferment or forbearance periods end, meaning future interest is then charged on a larger balance. This is why even small payments during a financial hardship period (covering just the accruing interest) can meaningfully reduce total cost compared to letting interest capitalize.