Milwaukee, WI-Based Rockwell Automation: an Excellent Example of How To Disclose the Impact of the Trump Tax Bill on December 2017 Quarter Earnings ...................................................................................... Quoting Rockwell Automation "On a GAAP basis, the effective tax rate in the first quarter of fiscal 2018 was 179.4 percent compared to 16.7 percent in the first quarter of fiscal 2017. The higher effective tax rate was due to provisional charges related to the tax effect of deemed repatriation of foreign earnings ($385.5 million or 129.5 percentage points) and the revaluation of net deferred tax assets ($94.2 million or 31.6 percentage points) associated with the Tax Act. " That's what I call being transparent.