Oops, it doesn't look like 'tax awareness day' is a national day..

Other days

ormille

Ormille Day
book

Book Day
hoodie

Hoodie Day
first love

First Love Day
bow tie

Bow Tie Day
kale

Kale Day
one

One Day
boy friend

Boy Friend Day
china

China Day
tell a fairytale

Tell A Fairytale Day