Calculated Field for “Keep up to current day of year”:
DATEPART(‘dayofyear’, [Order Date]) <= DATEPART(‘dayofyear’, Today() )
Calculated Field for “Keep up to current month of year”:
DATEPART(‘dayofyear’, [Order Date]) <= DATEPART(‘dayofyear’, Today() ) AND month([Order Date]) = month(Today())
then filter on True for both fields.