Is work permitted on Purim

It is permitted to engage in the kinds of labor that are prohibited on the Sabbath and festivals, i.e., traveling, writing, using electricity, cooking, etc., especially for the purpose of performing a mitzva or enjoying the day.

It is strongly discouraged, however, to treat Purim as a normal workday, and it is written that one who engages in such labor will not derive benefit from it (Shulchan Aruch 696:1).