According to the IRS, at 9:00 am, Eastern Standard Time (February 4, 2013), the Modernized e-File (MeF) system began accepting Tax Year 2012 Business Tax Returns with the exception of the limited list of forms that can be attached to the business return.

Forms on hold:

• Form 3800 General Business Credit
• Form 4136 Credit for Federal Tax Paid on Fuel

• Form 4562 Depreciation and Amortization (Including Information on Listed Property)
• Form 5471 Information Return of U.S. Persons With Respect to Certain Foreign Corporations
• Form 5735 American Samoa Economic Development Credit
• Form 5884 Work Opportunity Credit
• Form 6478 Credit for Alcohol Used as Fuel
• Form 6765 Credit for Increasing Research Activities
• Form 8820 Orphan Drug Credit
• Form 8834 Qualified Plug-in Electric and Electric Vehicle Credit
• Form 8844 Empowerment Zone and Renewal Community Employment Credit
• Form 8845 Indian Employment Credit
• Form 8864 Biodiesel and Renewable Diesel Fuels Credit
• Form 8874 New Markets Credits
• Form 8900 Qualified Railroad Track Maintenance Credit
• Form 8903 Domestic Production Activities Deduction
• Form 8908 Energy Efficient Home Credit
• Form 8909 Energy Efficient Appliance Credit
• Form 8910 Alternative Motor Vehicle Credit
• Form 8911 Alternative Fuel Vehicle Refueling Property Credit
• Form 8912 Credit to Holders of Tax Credit Bonds
• Form 8923 Mine Rescue Team Training Credit
• Form 8932 Credit for Employer Differential Wage Payments
• Form 8936 Qualified Plug-in Electric Drive Motor Vehicle Credit

Filing of two other business forms is affected by the delay, but only for electronic filers. Businesses using Form 720 and filling out lines 13 and 14 cannot file yet electronically, but they can file on paper. Other Forms 720 are being accepted electronically. In addition, Form 8849 Schedule 3, Claim for Refund of Excise Taxes, is not currently being accepted electronically, but it can be filed on paper.