Do I need to file a Form IE if the intangible expense deduction was granted on a previously filed Form IE-A?

Yes, the requirements for claiming an intangible expense deduction changed, effective for tax years beginning on or after July 1, 2016.  Form IE now must be filed each year the deduction is claimed.  Approval notifications previously issued based on the filing of Form IE-A are not valid for tax years beginning on or after July 1, 2016.  See Important Notice #17-27.