On December 20th, 2017, Illinois governor Bruce Rauner signed into law Public Act 100-0571, which reduces many Illinois LLC filing fees (including new LLC formations and annual report fees) by up to 70%!
Until the change in the law, filing fees for a new LLC were $500 and the annual report fee was $250. They have now been reduced to $150 for a new LLC filing and $75 for the LLC annual report filing.