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Difference between Memo and Letter

Difference between Memo and Letter

Most people use the terms “memo” and “letter” interchangeably, but there is a distinction between the two types of documents. A memo is typically shorter and more informal, while a letter is longer and more formal. Memos are often used for internal communication within a company, while letters are more commonly used for external communication, such as with customers or clients. Let’s take a closer look at the differences between memos and letters.

What is a Memo?

Memos are a type of short message that is typically used for business communication. They are generally used to communicate information within an organization and can be sent via email, hard copy, or even text message. Memos typically have a few key components, including a heading that includes the sender’s name and contact information, a subject line, and a brief message body. The message body of a memo can vary depending on the purpose of the memo, but often includes information such as an announcement, request, or update. Memos can be formal or informal, but should always be clear and concise in order to effectively communicate the desired information.

What is Letter?

A Letter is a type of written communication between two parties, usually consisting of a Letterhead, date, salutation, body paragraphs, closing, and signature. The Letterhead typically includes the name and address of the sender, while the date usually appears after the Letterhead. The salutation is the greeting (e.g., “Dear Mr. Smith”), and the body paragraphs contain the message of the Letter. The closing is a short statement (e.g., “Sincerely,” “Best Regards,” etc.), and the signature includes the sender’s name and title. Letters can be sent via email, fax, or traditional mail.

Difference between Memo and Letter

Memos and letters serve different purposes. Memos are shorter and less formal than letters. They’re typically used to communicate within an organization, while letters are used to communicate with people outside of an organization. Memos don’t need to be addressed to anyone in particular, but letters usually have a specific recipient. Memos can be sent electronically, while letters usually need to be printed and mailed. Memos are usually about factual information, while letters often contain opinions or feelings. When in doubt, err on the side of formality and send a letter.


The memo and the letter are both professional forms of communication, but they have different purposes. A memo is used to quickly share information among coworkers, while a letter is more formal and can be used for a variety of purposes, such as thanking someone or apologizing. Knowing the difference between these two types of letters will help you choose the right format for your message.

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