what does nj sdi mean
State Disability Insurance Tax. The SDI tax helps fund the New Jersey Temporary Disability Insurance Program. New Jersey's state disability program provides benefits to employees unable to work due to a disability.Unlike workman's compensation, the disability doesn't have to be the result of an injury or illness that occurred on the job. In 2014, the maximum amount of taxable wages for SDI is $31,500.he SDI tax helps fund the New Jersey Temporary Disability Insurance Program.