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 | PST-1 | ST-14 |
| CMFT-1 | ST-1 | ST-44 |
| MFUT-12 | ST-4 | ST-556 |
| MFUT-15 | ST-8 |
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 | RCS-1 |
RL-26-R |
| ICT-4 | RCS-36 | RL-26-W |
| IDR-909 | RG-1 | RPU-6 |
| RC-1-A | RG-6 | RPU-13 |
| RC-6 | RHM-1 | RT-2 |
| RC-6-A | RL-4 | RT-10 |
| RC-36 | RL-26 | TP-1 |
| RC-44 | RL-26-A | |
| RCOA-1 | RL-26-L | |
See also Informational Bulletins FY 2013-02 and FY 2013-03 for more information about Phase 1 and IFTA filing requirements. See Informational Bulletin FY 2013-10 for more information about Phase 2.