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Taxes included in MyTax Illinois

IDOR’s new online return filing, electronic payment, and tax account management system is being implemented in phases.

Phase 1 was implemented in September 2012 and included filing, payment, and account management for sales and use and related taxes and for the International Fuel Tax Agreement (IFTA). Specific forms include the following:

  • ART-1
  • CMFT-1
  • MFUT-12
  • MFUT-15
  • PST-1
  • ST-1
  • ST-4
  • ST-8
  • ST-14
  • ST-44
  • ST-556

Phase 2 of MyTax Illinois, implemented on April 1, 2013, includes filing, payment, and account management for excise taxes. Specific forms include the following:

  • DS-1
  • ICT-4
  • IDR-909
  • RC-1-A
  • RC-6
  • RC-6-A
  • RC-36
  • RC-44
  • RCOA-1
  • RCS-1
  • RCS-36
  • RG-1
  • RG-6
  • RHM-1
  • RL-4
  • RL-26
  • RL-26-A
  • RL-26-L
  • RL-26-R
  • RL-26-W
  • RPU-6
  • RPU-13
  • RT-2
  • RT-10
  • TP-1

Phase 3 of MyTax Illinois, implemented on July 1, 2013, includes business income and withholding income taxes. Specific forms include the following:

  • IL-941
  • IL-990-T
  • IL-1023-C
  • IL-1041
  • IL-1065
  • IL-1120
  • IL-1120-ST

Phase 4 of MyTax Illinois, implemented on September 30, 2013, includes individual income tax. Specific forms include the following:

  • IL-1040

See also Informational Bulletins FY 2013-02, FY 2013-03, FY 2013-10, FY 2013-14, and FY 2014-02 for more information.