" Turbotax Business for the 1041 (first year)..."
The keywords are "first year". Clearly, a fiduciary must make estimated tax payments if the trust's tax liability is expected to be at least $1000, but there are exceptions, to wit:
Estimated tax payments aren't required from:
1. An estate of a domestic decedent or a domestic trust that had no tax liability for the full 12-month 2016 tax year;
