There are times when you write on behalf of yourself rather than for the entire company. This chapter includes samples to help you write personal and confidential business letters.

Mail or Confidential Notation

Business-oriented letters may also include a notation indicating any special handling your letter should receive:

“Confidential” indicates that no one but the addressee should read this letter.The envelope, too, should indicate that a letter is confidential. For emphasis, write these notations either in all capital letters or underlined with initial capitals: Certified Mail.

Social letters typically do not include these notations. Also, remember that e-mail is not the right forum for confidential disclosures.


Use this word when the person to whom the letter is addressed is the only one who should read the letter. Physically separate the word from the rest of the letter by two lines. To assure confidentiality, include the word “Confidential” on the envelope.


Most business letters originating from a firm are written on the firm’s letterhead. If you are writing a personal business letter or your firm does not use letterhead, then you need to include your firm’s address in the heading.

It is likely that your organization may prefer one form over another. In the following explanations, the assumption is that you will be using letterhead stationery. If you are writing a personal business letter without letterhead, place your address one line above or below the date as in the following examples:

August 3, 20XX
Any number, Any road
Any city


Any number, Any road
Any city
August 3, 20XX


Business letter samples
Formal letter formats


Example of Personal Letters :