matrix column: show 'Actuals' for previous completed months, show 'Budget' data for months in progress

Hi All!

I have a matrix table with a column group 'Month of Year'.

What I want to do is display for all months completed 'Actuals' data, and for all months not completed, comparing against todays() date, show 'Budget' data.

I have both Budget and Actual data joined in the same query

I think I need to apply a filter to my column grouping but I'm not sure what the expression is.

pseudo:

Something like

for all months <= Month(Date()) then field!actuals else field!budget

Is this the right approach?