Some borrowers have been receiving notices in recent weeks that read: "You are now eligible to have some or all of your federal student loan(s) discharged because you have reached the necessary number of payments under your Income-Based Repayment (IBR) Plan." The IBR plan, first introduced in 2007, offers debt cancellation after 20 or 25 years of repayment, depending on the age of the loans. Nearly 2 million borrowers were enrolled in this program as of the second quarter, according to Federal Student Aid figures.