[If you apply for Social Security or Supplemental Security Income benefits, a new law went into effect March 1, 2013, requiring that you receive your payments electronically. If you did not sign up for electronic payments when you applied for benefits, we strongly urge you to do it now. If you still receive checks, the U.S. Department of the Treasury will contact you about complying with the requirement. For more information regarding switching to an electronic payment, visit Treasury’s Go Direct website or call the helpline at 1-800-333-1795. ]
https://www.ssa.gov/deposit/