Difference between a memo and a letter are:
- A memo is used internally within an organization moving upward, downward or horizontally. It is never sent outside.
- A memo does not require return address, salutation or complimentary close. It uses: To, from, Date and Subject heading
- A memo can use technical jargon and abbreviations because their meaning is understood by the people within the organization.
- It is costly.
- The language of the memo is simple and less formal.
- Whereas letters are used both for internal and external communication It has also large usage beyond the scope of an organization.
- A letter requires inside address, salutation and complimentary close.
- While communicating with external people through letter Simple words are encouraged rather than jargon.
- It is less costly than a memo.
- The language of the letter is planned and formal.
