| Form IL-1000 | Pass-through Entity Payment Income Tax Return (R-12/13) | 01/29/2014 |
| Form IL-1000-E | Certificate of Exemption for Pass-through Entity Payments (R-12/13) | 01/29/2014 |
| Form IL-1000-V | Payment Voucher for Pass-through Entity Income Tax (R-12/13) | 12/24/2013 |
| Form IL-1000-X | Amended Pass-through Entity Payment Income Tax Return (R-12/13) | 01/29/2014 |
| Form IL-1000-X-V | Payment Voucher for Amended Pass-through Entity Income Tax (R-12/13) | 12/24/2013 |
| Form IL-1023-C | Composite Income and Replacement Tax Return (includes Schedule BC) (R-12/13) | 01/29/2014 |
| Form IL-1023-C-V | Payment Voucher for Composite Income and Replacement Tax (R-12/13) | 12/27/2013 |
| Form IL-1023-C-X | Amended Composite Income and Replacement Tax Return (R-12/13) | 01/29/2014 |
| Form IL-1023-C-X-V | Payment Voucher for Amended Composite Income and Replacement Tax (R-12/13) | 12/27/2013 |
| Form IL-1040 | Individual Income Tax Return (R-12/13) | 01/28/2014 |
| Form IL-1040-ES | 2014 Estimated Income Tax Payments for Individuals (R-12/13) | 01/28/2014 |
| Form IL-1040-V | Payment Voucher for Individual Income Tax (R-12/13) | 01/28/2014 |
| Form IL-1040-X | Amended Individual Income Tax Return (R-12/13) | 01/28/2014 |
| Form IL-1040-X-V | Payment Voucher for Amended Individual Income Tax (N-12/13) | 01/28/2014 |
| Form IL-1041 | Fiduciary Income and Replacement Tax Return (includes Schedule D) (R-12/13) | 01/29/2014 |
| Form IL-1041-V | Payment Voucher for Fiduciary Income and Replacement Tax (R-12/13) | 12/26/2013 |
| Form IL-1041-X | Amended Fiduciary Income and Replacement Tax Return (includes Schedule D) (R-12/13) | 01/27/2014 |
| Form IL-1041-X-V | Payment Voucher for Amended Fiduciary Income and Replacement Tax (R-12/13) | 12/26/2013 |
| Form IL-1065 | Partnership Replacement Tax Return (includes Schedule B) (R-12/13) | 01/29/2014 |
| Form IL-1065-V | Payment Voucher for Partnership Replacement Tax (R-12/13) | 12/27/2013 |
| Form IL-1065-X | Amended Partnership Replacement Tax Return (includes Schedule B) (R-12/13) | 01/27/2014 |
| Form IL-1065-X-V | Payment Voucher for Amended Partnership Replacement Tax (R-12/13) | 12/27/2013 |
| Form IL-1120 | Corporation Income and Replacement Tax Return (R-12/13) | 01/29/2014 |
| Form IL-1120-ES | 2014 Estimated Income and Replacement Tax Payments for Corporations (R-12/13) | 12/20/2013 |
| Form IL-1120-ST | Small Business Corporation Replacement Tax Return (includes Schedule B) (R-12/13) | 01/29/2014 |
| Form IL-1120-ST-V | Payment Voucher for Small Business Corporation Replacement Tax (R-12/13) | 12/27/2013 |
| Form IL-1120-ST-X | Amended Small Business Corporation Replacement Tax Return (includes Schedule B) (R-12/13) | 01/27/2014 |
| Form IL-1120-ST-X-V | Payment Voucher for Amended Small Business Corporation Replacement Tax (R-12/13) | 12/27/2013 |
| Form IL-1120-V | Payment Voucher for Corporation Income and Replacement Tax (R-12/13) | 12/24/2013 |
| Form IL-1120-X | Amended Corporation Income and Replacement Tax Return (R-12/13) | 01/29/2014 |
| Form IL-1120-X-V | Payment Voucher for Amended Corporation Income and Replacement Tax (R-12/13) | 12/24/2013 |
| Form IL-1310 | Statement of Person Claiming Refund Due a Deceased Taxpayer (R-12/11) | 01/28/2014 |
| Form IL-2210 | Computation of Penalties for Individuals (R-12/13) | 01/28/2014 |
| Form IL-2220 | Computation of Penalties for Businesses (R-12/13) | 01/29/2014 |
| Form IL-4562 | Special Depreciation (R-12/13) | 01/28/2014 |
| Form IL-4644 | Gains from Sales of Employer's Securities Received from a Qualified Employee Benefit Plan (R-12/13) | 01/28/2014 |
| Form IL-477 | Replacement Tax Investment Credits (R-12/13) | 01/29/2014 |
| Form IL-4852 | Substitute for Unobtainable Form W-2 (R-12/11) | 01/28/2014 |
| Form IL-505-B | Automatic Extension Payment (R-12/13) | 01/14/2014 |
| Form IL-505-I | Automatic Extension Payment for Individuals Filing Form IL-1040 (R-12/13) | 01/28/2014 |
| Form IL-56 | Notice of Fiduciary Relationship (R-12/13) | 01/29/2014 |
| Form IL-990-T | Exempt Organization Income and Replacement Tax Return (R-12/13) | 01/29/2014 |
| Form IL-990-T-V | Payment Voucher for Exempt Organization Income and Replacement Tax (R-12/13) | 12/24/2013 |
| Form IL-990-T-X | Amended Exempt Organization Income and Replacement Tax Return (R-12/13) | 01/29/2014 |
| Form IL-990-T-X-V | Payment Voucher for Amended Exempt Organization Income and Replacement Tax (R-12/13) | 12/24/2013 |
| Form Sch-1299-A | Tax Subtractions and Credits (for partnerships and S corporations) (R-12/13) | 01/29/2014 |
| Form Sch-1299-B | River Edge Redevelopment Zone or Foreign Trade Zone (or sub-zone) Subtractions (for corporations and fiduciaries) (R-12/13) | 01/29/2014 |
| Form Sch-1299-C | Income Tax Subtractions & Credits (for individuals) (R-12/13) | 01/28/2014 |
| Form Sch-1299-D | Income Tax Credits (for corporations and fiduciaries) (R-12/13) | 01/29/2014 |
| Form Sch-1299-S | Enterprise Zones, Foreign Trade Zones, and Sub-Zones (R-12/13) | 01/28/2014 |
| Form Sch-4255 | Recapture of Investment Tax Credits (R-12/13) | 01/28/2014 |
| Form Sch-80-20 | Related-Party Expenses (R-12/13) | 01/29/2014 |
| Form Sch-CR | Credit for Tax Paid to Other States (R-12/13) | 01/28/2014 |
| Form Sch-CU | Civil Union Income Report (R-12/13) | 01/28/2014 |
| Form Sch-F-Fid | Gains from Sales or Exchanges of Property Acquired Before August 1, 1969 (R-12/13) | 01/29/2014 |
| Form Sch-F-Ind | Gains from Sales or Exchanges of Property Acquired Before August 1, 1969 (R-12/13) | 01/28/2014 |
| Form Sch-F-Part | Gains from Sales or Exchanges of Property Acquired Before August 1, 1969 (R-12/13) | 01/29/2014 |
| Form Sch-F-Subs | Gains from Sales or Exchanges of Property Acquired Before August 1, 1969 (R-12/13) | 01/29/2014 |
| Form Sch-G | Voluntary Charitable Donations (R-12/13) | 01/28/2014 |
| Form Sch-I | Income Received (R-12/13) | 01/29/2014 |
| Form Sch-ICR | Illinois Credits (R-12/13) | 01/28/2014 |
| Form Sch-INL | Illinois Net Loss Adjustments for Cooperatives and REMIC Owners (R-12/13) | 01/29/2014 |
| Form Sch-INS | Tax for Foreign Insurers (R-12/13) | 01/29/2014 |
| Form Sch-J | Foreign Dividends (R-12/13) | 01/29/2014 |
| Form Sch-K-1-P (1) | Instructions for Partnerships and S Corporations Completing Schedule K-1-P (R-12/13) | 01/24/2014 |
| Form Sch-K-1-P (2) | Partner's and Shareholder's Instructions (R-12/13) | 01/24/2014 |
| Form Sch-K-1-P | Partner's or Shareholder's Share of Income, Deductions, Credits, and Recapture (R-12/13) | 01/29/2014 |
| Form Sch-K-1-T (1) | Instructions for Trusts and Estates Completing Schedule K-1-T (R-12/13) | 01/24/2014 |
| Form Sch-K-1-T (2) | Beneficiary's Instructions (R-12/13) | 01/24/2014 |
| Form Sch-K-1-T | Beneficiary's Share of Income and Deductions (R-12/13) | 01/29/2014 |
| Form Sch-M | Other Additions and Subtractions (for businesses) (R-12/13) | 01/29/2014 |
| Form Sch-M-Ind | Other Additions and Subtractions for Individuals (R-12/13) | 01/29/2014 |
| Form Sch-NB | Nonbusiness Income (R-12/13) | 01/29/2014 |
| Form Sch-NLD | Illinois Net Loss Deduction (R-12/13) | 01/29/2014 |
| Form Sch-NR | Nonresident Computation of Fiduciary Income (R-12/13) | 01/29/2014 |
| Form Sch-NR-Ind | Nonresident and Part-Year Resident Computation of Illinois Tax (R-12/13) | 01/29/2014 |
| Form Sch-UB | Combined Apportionment for Unitary Business Group (R-12/13) | 01/29/2014 |
| Form Sch-UB-INS | Tax for a Unitary Business Group with Foreign Insurer Members (R-12/13) | 01/29/2014 |
| Form Sch-UB-NLD | Unitary Illinois Net Loss Deduction (R-12/13) | 01/29/2014 |