Form 3800, General Business Credit
Form 4136, Credit for Federal Tax Paid on Fuels
Form 4562, Depreciation and Amortization (Including Information on Listed Property)
Form 5074, Allocation of Individual Income Tax to Guam or the Commonwealth of the Northern Mariana Islands
Form 5471, Information Return of U.S. Persons with Respect to Certain Foreign Corporations
Form 5695, Residential Energy Credits
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 8396, Mortgage Interest Credit
Form 8582, Passive Activity Loss Limitations
Form 8820, Orphan Drug Credit
Form 8834, Qualified Plug-in Electric and Electric Vehicle Credit
Form 8839, Qualified Adoption Expenses
Form 8844, Empowerment Zone and Renewal Community Employment Credit
Form 8845, Indian Employment Credit
Form 8859, District of Columbia First-Time Homebuyer Credit
Form 8863, Education Credits (American Opportunity and Lifetime Learning Credits)
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


The IRS is still having a delay in accepting and processing returns that have one or more of the above Forms. Business returns are due on March 15, but no idea of when the inevitable bottleneck will happen.