Well, I don't see what mathematics has to do with taxes anyway. >:o
I was thinking of mathematics extended from pseudo-sciences, like astronomy from astrology. Astrology is the study of fate, in many ways - which could lead to some statistical thinking. Or, if you concentrate on the part of astrology which defines the human itself, and not fate, you could get early psychology.
Mathematics from numerology or astrology or something else isn't so far fetched.
