Tax practitioners and tax preparers should refer to the Mississippi e-file Handbook, a companion to the Internal Revenue Service Publication 1345. The handbook highlights the special and unique features of the Mississippi program. All rules and regulations governing tax preparers, transmitters, and originators of returns put forth by the Internal Revenue Service are in effect for the Mississippi Department of Revenue. The procedures and requirements for the Federal/State e-file Program are outlined in IRS Publication 1345.
The Mississippi Department of Revenue requires all participants to be accepted into the Federal program in order to participate in the State e-file Program. There is not a form to complete for Mississippi. DOR downloads the acceptance letters from the IRS.