| Form IL-1000-E | Certificate of Exemption for Pass-through Withholding Payments | 02/10/2016 |
| Form IL-1040 | Individual Income Tax Return | 01/15/2016 |
| Form IL-1040-ES | 2016 Estimated Income Tax Payments for Individuals | 02/09/2016 |
| Form IL-1040-V | Payment Voucher for Individual Income Tax | 01/19/2016 |
| Form IL-1040-X | Amended Individual Income Tax Return | 01/15/2016 |
| Form IL-1040-X-V | Payment Voucher for Amended Individual Income Tax | 02/09/2016 |
| Form IL-1041 | Fiduciary Income and Replacement Tax Return -includes Schedule D) | 02/08/2016 |
| Form IL-1041-V | Payment Voucher for Fiduciary Income and Replacement Tax | 02/08/2016 |
| Form IL-1041-X | Amended Fiduciary Income and Replacement Tax Return -includes Schedule D) | 02/08/2016 |
| Form IL-1041-X-V | Payment Voucher for Amended Fiduciary Income and Replacement Tax | 02/08/2016 |
| Form IL-1065 | Partnership Replacement Tax Return -includes Schedule B) | 02/10/2016 |
| Form IL-1065-V | Payment Voucher for Partnership Replacement Tax | 02/10/2016 |
| Form IL-1065-X | Amended Partnership Replacement Tax Return -includes Schedule B) | 02/10/2016 |
| Form IL-1065-X-V | Payment Voucher for Amended Partnership Replacement Tax | 02/10/2016 |
| Form IL-1120 | Corporation Income and Replacement Tax Return | 02/08/2016 |
| Form IL-1120-ES | 2016 Estimated Income and Replacement Tax Payments for Corporations | 02/08/2016 |
| Form IL-1120-ST | Small Business Corporation Replacement Tax Return -includes Schedule B) | 11/24/2015 |
| Form IL-1120-ST-V | Payment Voucher for Small Business Corporation Replacement Tax | 01/11/2016 |
| Form IL-1120-ST-X | Amended Small Business Corporation Replacement Tax Return -includes Schedule B) | 01/04/2016 |
| Form IL-1120-ST-X-V | Payment Voucher for Amended Small Business Corporation Replacement Tax | 01/11/2016 |
| Form IL-1120-V | Payment Voucher for Corporation Income and Replacement Tax | 02/08/2016 |
| Form IL-1120-X | Amended Corporation Income and Replacement Tax Return | 02/08/2016 |
| Form IL-1120-X-V | Payment Voucher for Amended Corporation Income and Replacement Tax | 02/08/2016 |
| Form IL-1310 | Statement of Person Claiming Refund Due a Deceased Taxpayer | 01/28/2014 |
| Form IL-2210 | Computation of Penalties for Individuals | 02/09/2016 |
| Form IL-2220 | Computation of Penalties for Businesses | 02/10/2016 |
| Form IL-4562 | Special Depreciation | 01/14/2016 |
| Form IL-4644 | Gains from Sales of Employer's Securities Received from a Qualified Employee Benefit Plan | 01/14/2016 |
| Form IL-477 | Replacement Tax Investment Credits | 02/10/2016 |
| Form IL-4852 | Substitute for Unobtainable Form W-2 | 01/15/2015 |
| Form IL-505-B | Automatic Extension Payment | 02/10/2016 |
| Form IL-505-I | Automatic Extension Payment for Individuals Filing Form IL-1040 | 02/09/2016 |
| Form IL-516-B | 2016 Pass-through Prepayment | 02/10/2016 |
| Form IL-56 | Notice of Fiduciary Relationship | 01/14/2016 |
| Form IL-990-T | Exempt Organization Income and Replacement Tax Return | 11/24/2015 |
| Form IL-990-T-V | Payment Voucher for Exempt Organization Income and Replacement Tax | 01/11/2016 |
| Form IL-990-T-X | Amended Exempt Organization Income and Replacement Tax Return | 01/04/2016 |
| Form IL-990-T-X-V | Payment Voucher for Amended Exempt Organization Income and Replacement Tax | 01/11/2016 |
| Form MC-1 | Medical Cannabis Cultivation Privilege Tax Return -N-05/15) | 10/07/2015 |
| Form MC-1-V | Payment Voucher for Medical Cannabis Cultivation Privilege Tax -N-05/15) | 09/28/2015 |
| Form MC-1-X | Amended Medical Cannabis Cultivation Privilege Tax Return -N-05/15) | 10/07/2015 |
| Form MC-1-X-V | Payment Voucher for Amended Medical Cannabis Cultivation Privilege Tax -N-05/15) | 09/28/2015 |
| Form MC-2 | Medical Cannabis Sales -N-05/15) | 10/07/2015 |
| Form MC-3 | Medical Cannabis Deductions -N-05/15) | 10/07/2015 |
| Schedule 1299-A | Tax Subtractions and Credits -for partnerships and S corporations) | 02/10/2016 |
| Schedule 1299-B | River Edge Redevelopment Zone or Foreign Trade Zone -or sub-zone) Subtractions -for corporations and fiduciaries) | 02/10/2016 |
| Schedule 1299-C | Income Tax Subtractions & Credits -for individuals) - -revised 02-08-2016) | 02/08/2016 |
| Schedule 1299-D | Income Tax Credits -for corporations and fiduciaries) | 02/10/2016 |
| Schedule 1299-S | Enterprise Zones, Foreign Trade Zones, and Sub-Zones | 01/14/2016 |
| Schedule 4255 | Recapture of Investment Tax Credits | 01/14/2016 |
| Schedule 80-20 | Related-Party Expenses | 02/10/2016 |
| Schedule CR-1040 | Credit for Tax Paid to Other States | 02/08/2016 |
| Schedule CR-1041 | Credit for Tax Paid to Other States | 02/09/2016 |
| Schedule G | Voluntary Charitable Donations | 02/09/2016 |
| Schedule I | Income Received | 01/14/2016 |
| Schedule ICR | Illinois Credits | 02/09/2016 |
| Schedule INL | Illinois Net Loss Adjustments for Cooperatives and REMIC Owners | 02/08/2016 |
| Schedule INS | Tax for Foreign Insurers | 02/08/2016 |
| Schedule J | Foreign Dividends | 01/14/2016 |
| Schedule K-1-P | Partner's or Shareholder's Share of Income, Deductions, Credits, and Recapture | 02/10/2016 |
| Schedule K-1-P-3 | Pass-through Withholding Calculation for Nonresident Members | 02/10/2016 |
| Schedule K-1-T | Beneficiary's Share of Income and Deductions | 01/15/2016 |
| Schedule K-1-T-1 | Instructions for Trusts and Estates Completing Schedule K-1-T and Schedule K-1-T-3) | 02/08/2016 |
| Schedule K-1-T-2 | Beneficiary's Instructions | 02/08/2016 |
| Schedule K-1-T-3 | Pass-through Withholding Calculation for Nonresident Members | 02/08/2016 |
| Schedule M | Other Additions and Subtractions -for businesses) | 02/10/2016 |
| Schedule M-1040 | Other Additions and Subtractions for Individuals | 02/09/2016 |
| Schedule NB | Nonbusiness Income | 01/14/2016 |
| Schedule NLD | Illinois Net Loss Deduction | 02/10/2016 |
| Schedule NR-1040 | Nonresident and Part-Year Resident Computation of Illinois Tax | 01/19/2016 |
| Schedule NR-1041 | Nonresident Computation of Fiduciary Income | 02/08/2016 |
| Schedule UB | Combined Apportionment for Unitary Business Group | 02/10/2016 |
| Schedule UB-INS | Tax for a Unitary Business Group with Foreign Insurer Members | 01/15/2016 |
| Schedule UB-NLD | Unitary Illinois Net Loss Deduction | 02/08/2016 |
