When I check box 1 near the top of the "Estimated Tax Worksheet" in ProSeries trust tax software IT DOES NOT WORK.  

Box 1 is the option to pay 100% of prior year taxes (or 110% if over AGI threshold of $150K).

Even after checking that box, the worksheet STILL computes estimates on the lessor of prior year tax or 90% of a 2022 estimate.  

Hopefully a ProSeries programmer will read this and FIX IT.  It is messed up for Fed and California

Doug R