The Best Formatting for a Business Letter. A business letter is a formal document often sent from one company to another or from a company to its clients, employees, and stakeholders, for example. Business letters are used for professional correspondence between individuals, as well. Although email has taken over as the most common form of correspondence, printed out business letters are still used for many important, serious types of correspondence, including reference letters, employment verification, job offers, and more.
Beginning the Letter. Know the format: There are some business standards which need to be followed. One must use a common font to type a business letter. One must use indentation, paragraphs, margins etc. The text must be typed in black color only. Choose the Right Kind of Paper: One must print a letter in a letter sized paper. The standard size of the paper is A4.