| Form IL-1000 | Pass-through Entity Payment Income Tax Return (R-12/12) | 01/11/2013 |
| Form IL-1000-E | Certificate of Exemption for Pass-through Entity Payments (R-12/12) | 01/08/2013 |
| Form IL-1000-P | Prepayment Voucher for Pass-through Entity Payments (R-12/12) | 01/10/2013 |
| Form IL-1000-V | Payment Voucher for Pass-through Entity Income Tax (R-12/12) | 12/26/2012 |
| Form IL-1000-X | Amended Pass-through Entity Payment Income Tax Return (R-12/12) | 01/11/2013 |
| Form IL-1000-X-V | Payment Voucher for Pass-through Entity Income Tax (R-12/12) | 12/26/2012 |
| Form IL-1023-C | Composite Income and Replacement Tax Return (R-12/12) | 01/10/2013 |
| Form IL-1023-CES | 2013 Composite Estimated Tax Payments for Partners and Shareholders (R-12/12) | 01/10/2013 |
| Form IL-1023-C-V | Payment Voucher for Composite Income and Replacement Tax (R-12/12) | 12/27/2012 |
| Form IL-1023-C-X | Amended Composite Income and Replacement Tax Return (R-12/12) | 01/10/2013 |
| Form IL-1023-C-X-V | Payment Voucher for Amended Composite Income and Replacement Tax (R-12/12) | 12/27/2012 |
| Form IL-1040 | Individual Income Tax Return (R-12/12) | 01/23/2013 |
| Form IL-1040-ES-2013 | 2013 Estimated Income Tax Payments for Individuals (R-12/12) | 01/23/2013 |
| Form IL-1040-ES | 2012 Estimated Income Tax Payments for Individuals (R-12/11) | 03/06/2012 |
| Form IL-1040-V | Payment Voucher for Individual Income Tax (R-12/12) | 01/03/2013 |
| Form IL-1040-X | Amended Individual Income Tax Return (R-12/12) | 01/23/2013 |
| Form IL-1041 | Fiduciary Income and Replacement Tax Return (Includes Schedule D) (R-12/12) | 01/10/2013 |
| Form IL-1041-V | Payment Voucher for Fiduciary Income and Replacement Tax (R-12/12) | 12/27/2012 |
| Form IL-1041-X | Amended Fiduciary Income and Replacement Tax Return (R-12/12) | 01/10/2013 |
| Form IL-1041-X-V | Payment Voucher for Amended Fiduciary Income and Replacement Tax (R-12/12) | 12/27/2012 |
| Form IL-1065 | Partnership Replacement Tax Return (includes Schedule B) (R-12/12) | 01/24/2013 |
| Form IL-1065-V | Payment Voucher for Partnership Replacement Tax (R-12/12) | 12/28/2012 |
| Form IL-1065-X | Amended Partnership Replacement Tax Return (R-12/12) | 01/10/2013 |
| Form IL-1065-X-V | Payment Voucher for Amended Partnership Replacement Tax (R-12/12) | 12/28/2012 |
| Form IL-1120 | Corporation Income and Replacement Tax Return (R-12/12) | 01/10/2013 |
| Form IL-1120-ES | 2013 Estimated Income and Replacement Tax Payments for Corporations (R-12/12) | 01/10/2013 |
| Form IL-1120-ST | Small Business Corporation Replacement Tax Return includes Schedule B) (R-12/12) | 01/24/2013 |
| Form IL-1120-ST-V | Payment Voucher for Small Business Corporation Replacement Tax (R-12/12) | 12/31/2012 |
| Form IL-1120-ST-X | Amended Small Business Corporation Replacement Tax Return (R-12/12) | 01/10/2013 |
| Form IL-1120-ST-X-V | Payment Voucher for Amended Small Business Corporation Replacement Tax (R-12/12) | 12/31/2012 |
| Form IL-1120-V | Payment Voucher for Corporation Income and Replacement Tax (R-12/12) | 12/31/2012 |
| Form IL-1120-X | Amended Corporation Income and Replacement Tax Return (R-12/12) | 01/10/2013 |
| Form IL-1120-X-V | Payment Voucher for Amended Corporation Income and Replacement Tax (R-12/12) | 12/31/2012 |
| Form IL-1310 | Statement of Person Claiming Refund Due a Deceased Taxpayer (R-12/11) | 03/06/2012 |
| Form IL-2210 | Computation of Penalties for Individuals (R-12/12) | 12/20/2012 |
| Form IL-2220 | Computation of Penalties for Businesses (R-12/12) | 01/08/2013 |
| Form IL-4562 | Special Depreciation (R-12/12) | 01/23/2013 |
| Form IL-4644 | Gains from Sales of Employers Securities Received from a Qualified Employee Benefit Plan (R-12/12) | 03/06/2012 |
| Form IL-477 | Replacement Tax Investment Credits (R-12/12) | 01/08/2013 |
| Form IL-4852 | Substitute for Unobtainable Form W-2 (R-12/11) | 03/06/2012 |
| Form IL-501-2013 | Payment Coupon and Instructions (R-12/12) | 01/03/2013 |
| Form IL-501 | Payment Coupon and Instructions (R-12/11) | 03/06/2012 |
| Form IL-505-B | Automatic Extension Payment (R-12/12) | 01/03/2013 |
| Form IL-505-I | Automatic Extension Payment for Individuals (R-12/12) | 11/26/2012 |
| Form IL-56 | Notice of Fiduciary Relationship (R-12/00) | 12/23/2011 |
| Form IL-5754 | Statement by Person Receiving Gambling Winnings (R-12/05) | 10/17/2011 |
| Form IL-700-T-2013 | Illinois Withholding Tax Tables (R-12/12) | 12/18/2012 |
| Form IL-700-T | Illinois Withholding Tax Tables (R-12/11) | 12/18/2012 |
| Form IL-941 | Illinois Withholding Income Tax Return and Instructions (R-12/11) | 11/01/2012 |
| Form IL-941-X | Amended Illinois Withholding Income Tax Return (R-12/11) | 12/19/2012 |
| Form IL-990-T | Exempt Organization Income and Replacement Tax Return (R-12/12) | 01/14/2013 |
| Form IL-990-T-V | Payment Voucher for Exempt Organization Income and Replacement Tax (R-12/12) | 12/20/2012 |
| Form IL-990-T-X | Amended Exempt Organization Income and Replacement Tax Return (R-12/12) | 01/14/2013 |
| Form IL-990-T-X-V | Payment Voucher for Amended Exempt Organization Income and Replacement Tax (R-12/12) | 12/28/2012 |
| Form IL-W-4 | Employee's Illinois Withholding Allowance Certificate (R-12/12) | 12/19/2012 |
| Form IL-W-5 | Certificate of Residence in Illinois (R-12/03) | 10/17/2011 |
| Form IL-W-5-NR | Employee's Statement of Nonresidence in Illinois (R-12/10) | 10/17/2011 |
| Sched-1299-A | Tax Subtractions and Credits (for partnerships and S corporations) (R-12/12) | 01/11/2013 |
| Sched-1299-B | Enterprise Zone or Foreign Trade Zone (sub-zone) Subtractions (for corporations and fiduciaries) (R-12/12) | 01/11/2013 |
| Sched-1299-C | Income Tax Subtractions and Credits (R-12/12) | 11/27/2012 |
| Sched-1299-D | Income Tax Credits (for corporations and fiduciaries) (R-12/12) | 01/11/2013 |
| Sched-1299-S | Enterprise Zones, Foreign Trade Zones, and Sub-Zones (R-12/12) | 01/11/2013 |
| Sched-4255 | Recapture of Investment Tax Credits (R-12/12) | 01/08/2013 |
| Sched-80-20 | Related Party Expenses (R-12/12) | 01/25/2013 |
| Sched-CR | Credit for Tax Paid to Other States (R-12/12) | 01/23/2013 |
| Sched-CU | Civil Union Income Report (N-12/12) | 01/23/2013 |
| Sched-F-1040 | Gains from Sales or Exchanges of Property Acquired Before 8/1/69 (R-12/12) | 11/28/2012 |
| Sched-F-1041 | Gains from Sales or Exchanges of Property Acquired before 8/1/69 (R-12/12) | 01/08/2013 |
| Sched-F-1065 | Gains from Sales or Exchanges of Property Acquired before 8/1/69 (R-12/12) | 01/08/2013 |
| Sched-F-1120-ST | Gains from Sales or Exchanges of Property Acquired before 8/1/69 (R-12/12) | 01/08/2013 |
| Sched-G | Voluntary Charitable Donations (R-12/12) | 01/09/2013 |
| Sched-I | Income Received(R-12/12) | 01/08/2013 |
| Sched-ICR | Illinois Credits (R-12/12) | 11/27/2012 |
| Sched-INL | Illinois Net Loss Adjustment for Cooperatives (R-12/12) | 01/10/2013 |
| Sched-INS | Tax for Foreign Insurers (R-12/12) | 01/08/2013 |
| Sched-J | Foreign Dividends (R-12/12) | 01/10/2013 |
| Sched-K-1-P | Partner's or Shareholder's Share of Income, Deductions, Credits, and Recapture (R-12/12) | 01/11/2013 |
| Sched-K-1-P-1 | Instructions for Partnerships and S Corporations Completing Schedule K-1-P (R-12/12) | 01/11/2013 |
| Sched-K-1-P-2 | Partner's and Shareholder's Instructions (R-12/12) | 01/11/2013 |
| Sched-K-1-T | Beneficiary's Share of Income and Deductions (R-12/12) | 01/11/2013 |
| Sched-K-1-T-1 | Instructions for Trusts and Estates Completing Schedule K-1-T (R-12/12) | 01/11/2013 |
| Sched-K-1-T-2 | Beneficiary's Instructions(R-12/12) | 01/11/2013 |
| Sched-M-1040 | Other Additions and Subtractions for Individuals (R-12/12) | 11/27/2012 |
| Sched-M | Other Additions and Subtractions (for businesses) (R-12/12) | 01/10/2013 |
| Sched-NB | Nonbusiness Income (R-12/12) | 01/08/2013 |
| Sched-NLD | Illinois Net Loss Deduction (R-12/12) | 01/10/2013 |
| Sched-NR-1040 | Nonresident and Part-year resident Computation of Illinois Tax (R-12/12) | 01/23/2013 |
| Sched-NR | Nonresident Computation of Fiduciary Income(R-12/12) | 01/08/2013 |
| Sched-UB | Combined Apportionment for Unitary Business Group (R-12/12) | 01/08/2013 |
| Sched-UB-INS | Tax for a Unitary Business Group with Foreign Insurer Members (R-12/12) | 01/08/2013 |
| Sched-UB-NLD | Unitary Illinois Net Loss Deduction (R-12/12) | 01/16/2013 |