Illinois Department of Revenue
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2011 IL-1120/IL-1120-ST Schemas and Business Rules
IL-1120/IL-1120-ST
Business Rules
(effective 07/10/2012)
[test and production]
Schemas
(effective 02/10/2012)
[test and production]
Business Rules
(effective 12/20/2011)
[for testing only]
Schemas
(effective 12/12/2011)
[draft - not for testing]
Schemas
(effective 12/01/2011)
[draft - not for testing]
IL-1120-ST
Schemas
(11/01/2011)
[draft - not for testing
]
Business Rules
(11/01/2011)
[
for testing only
]
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