IBR stands for Income-Based Repayment, which is a federal student loan repayment program in the United States. The program adjusts the amount that one needs to pay each month based on ones current income and family size. With an IBR plan, the payment amount will be capped at the lower of a certain percentage of discretionary income or the amount you would pay under the 10-year Standard Repayment Plan. The percentage rate depends on when you took out the loan and if you had existing federal student loans. If the borrower is a "new borrower" on or after July 1, 2014, then the borrower will have payments that are generally 10% of discretionary income, and forgiveness is provided for after 20 years of qualifying payment. If a borrower is not a new borrower on or after July 1, 2014, then payments will generally be 15% of discretionary income, and forgiveness is provided for after 25 years of qualifying repayment. The IBR program is best for students who will be pursuing public service careers and borrowers with high debt and low income.