Possible online services disruption due to Internet related outage
Telecommunications Infrastructure Maintenance Fees Forms
Name | Description | |
---|---|---|
MyTax Illinois | ||
RT-10 | Instr. | Telecommunications Infrastructure Maintenance Fees (TIMF) Return (R-11/12) |
RT-10-X | Instr. | Amended Telecommunications Infrastructure Maintenance Fees (TIMF) Return (R-11/12) |