Formal writing is defined as "a form of writing which is used for the business, legal, academic or professional purpose" by Key Differences. Formal writing uses Standard English, or English that uses correct punctuation, grammar, and spelling. This is different from informal Engish which does not follow formal grammar structure. Formal writing is used professional settings and for an audience that you do not know personally. Using formal writing is important to clearly convey information in a professional or impersonal setting.
