Taxpayer was on a J-1 visa (student).  Worked in US.  As a non-resident J1 student, she was exempt from FICA.  She got married.  She received her "green card" in May of 2019.  Notified employer of change of status.  Employer changed filing status from single to married, but never changed FICA exemption.  FICA taxes were not withheld for the entire year.  Clients were unaware until received W2s.  They want to do the right thing and pay the FICA (even if it means paying the employer share as well).  Employer does not want to fix and issue corrected W2 on his side.  Is there a way to do this when filing their return?  If so, how.  I thought about showing as self-employment and paying the SE tax, but there was federal and state tax withheld as shown on the W2.