Illinois Department Of Revenue Bulletin Illinois Income Tax Increase Guidance - Detailed Instructions For Filing Your 2016 Illinois Income Tax Return And 2017 Estimated Payments (2018)
Illinois Department Of Revenue Bulletin Change To Motor Fuel Tax Reporting Of Liquefied Natural Gas And Changes To Units Of Measurement For Sales Of Liquefied Natural Gas, Propane, And Compressed Natural Gas Sold For Use As Motor Fuel (2017)