I created a function that works.

I then copied it and added some more variables.  The function does not get past reading in the variables.

Here is the beginning of the code.

==============================

Public Function AnnuityJS(age, spage, defAge, MortTblName As Integer, SpMorTblName As Integer, JSPct As Variant, Seg_1 As Variant, Seg_2 As Variant, Seg_3 As Variant, IntOnlyDef As Boolean)

Debug.Print age
Debug.Print spage
Debug.Print defAge
Debug.Print MortTblName
Debug.Print SpMortTblName
Debug.Print JSPct

=========================

Debug print will show the variable listed except for SpMorTblName.