Tax Filing Due Dates


Form Type of Form Due Date
1120 & IL1120
Corporate Returns
3/15
1120S & IL1120ST
S-Corporate Returns
3/15
1040 & IL1040
Individual Returns
4/15
1065 & IL1065
Partnership Returns
4/15
1041 & IL1041
Trust Returns
4/15
  Payroll Tax Returns  
941
Federal Wage Return
4/30
IL941
State Wage Return
4/30
UI 3/40 (IDES)
State Unemployment
4/30
     
941
Federal Wage Return
7/31
IL941
State Wage Return
7/31
UI 3/40 (IDES)
State Unemployment
7/31
     
941
Federal Wage Return
10/31
IL941
State Wage Return
10/31
UI 3/40 (IDES)
State Unemployment
10/31
     
941
Federal Wage Return
1/31
IL941
State Wage Return
1/31
UI 3/40 (IDES)
State Unemployment
1/31
     
940EZ
Federal Unemployment
1/31
W-3
Transmittal of Wage and Tax Statement
1/31
W-2
Wage and Tax Statement
1/31
IL W-3
State Wage Report
1/31
     
1099-MISC
Miscellaneous Income Report (Subcontractors)
1/31
     
1096
Annual Summary of Information Returns
1/31