Supplemental Security Income (SSI) (see http://www.socialsecurity.gov/pubs/11000.html) payments will stop beginning with the first month throughout which you are in jail. Regular retirement, survivors and disability (RSDI--Title II) (see http://www.socialsecurity.gov/pubs/10024.html) benefits will stop with the month your parole or probation is officially cancelled by a court or parole board, and then only if you are in jail for more than thirty calendar days.