A religious order (or autonomous subdivision of a religious order) whose members are required to take a vow of poverty may file this form to certify that it elects social security and Medicare coverage under Internal Revenue Code section 3121(r) for services its members perform in exercising their required duties. Current revision Form SS-16 PDF Recent developments None at this time. Other items you may find useful All Form SS-16 revisions About Publication 15, Employer's Tax Guide Other current products Related items About Form 941, Employer's Quarterly Federal Tax Return About Form 941-X, Adjusted Employer's Quarterly Federal Tax Return or Claim for Refund About Form 944, Employer's Annual Federal Tax Return