As of 2015, the salary for regular members of the U.S. House of Representatives is $174,000 per year, plus benefits. The salary is the same for those serving in the Senate. House and Senate leaders earn higher salaries, with the Speaker of the House earning $223,500 per year.
In theory, congressional salaries increase on January 1 of each year to reflect changes in the cost of living. Every year since 2009, however, Congress has passed a resolution turning down any increase in pay.
Members of Congress did not begin to receive a salary for their service until 1855. Prior to that, members received a per diem payment for each day they were session.