IL changed tax rate in 2017. Can file two ways: 1. 2017 income at blended rate 2. Jan-Jun income at lower rate and Jul-Dec at higher rate. Does TurboTax handle this?

No, the IL-1040 Schedule SA is not supported by TurboTax for 2017 IL taxes.

• If you want to prepare Sch SA, you will have to manually do it on paper forms, and mail in your IL forms .
• The default blended tax calculation will be used by the TurboTax software.

Related information: 

• Blended Income Tax Rates For Use With Your 2017 Illinois Income ...
• Schedule SA - Illinois Department of Revenue
• Schedule SA Instructions (IL-1040) - Illinois Department of Revenue