More than 7 million students will see interest rates on their student loans double from 3.4 to 6.8 percent on Monday, after the failure of Congress to pass legislation to prevent the automatic rate hike that they successfully deferred for a year last summer.

Despite the introduction of several bills to serve as a solution, lawmakers will leave for the week-long July 4 recess without implementing any of them, letting the July 1 deadline pass. Any students taking or renewing federal subsidized Stafford loans after that deadline can expect to pay, for example, an additional $3,000 on a $23,000 loan paid off over 10 years.