LLC Franchise Tax
The Annual Report filing fee is $250.
Domestic LLC Annual Report - Annual Report
E-File Annual Report - Annual Report E-Filing Directions
An annual report form must be filed each year within 60 days immediately preceding the first day of the anniversary month of organization.
LLC Tax Returns
If you file as a corporation for federal tax purposes, you are treated as a corporation in Illinois and file IL-1120. The income tax rate is 4.8% of the company's net income. In addition, Illinois assesses a personal property replacement tax based on net income (2.5% for corporations, 1.5% for S corporations and all other incorporated entities) on all businesses. If you file as a Partnership, you will need to use form IL-1065.
Form IL-1120 - 2010 Corporation Income and Replacement Tax Return (instructions)
Form IL-1065 - 2010 Partnership Replacement Tax Return (instructions)
Other Tax Forms - Business Tax Forms 1997-2010
Using Form IL-1120, taxes are due on or before the 15th day of the 3rd month following the close of the tax year, March 15th for calendar year filings.
Using Form IL-1065, taxes are due on or before the 15th day of the 4th month following the close of the tax year, April 15th for calendar year filings.