Extremely formal When you've began with Dear Sir or Madam, or To Whom It May Concern, use yours honestly, genuinely yours, politely. Then end with Sincerely yours and a salutation depending on who the recipient is.
Formal You can end any letter formally by using your name followed by the suffix "Yours sincerely." For example, if you were writing to a friend, you could end the letter like this: "Yours sincerely, Jane Smith." Or you could sign it simply "Jane Smith."
Colloquial You can also end a letter informally by using your name followed by the word "yours" or "yours truly."
Business End your letter formally by adding the term "respectfully," followed by your name and address. For example, if you were writing to an employer about a job opportunity, you could end the letter like this: "Respectfully, John Doe." Or you could sign it simply "John Doe."
Extremely formal When you've began with Dear Sir/Madame or To Whom It May Concern, utilize it respectfully. Sincerely, use it after starting with Dear + name. These letters are appropriate for business communications or when you need to cover all possibilities.
Formal Use this form when writing to someone who is not familiar with you or your company. Include your name and address at the top of the letter so that the recipient can reply if they like. Make sure to write Mr. /Mrs. Before the person's first name; do not use "Dear" before names unless they are very close friends or relatives. For example, if you were writing to Bob's wife Susan, you would begin with "Dear Mrs. Smith." If you have a business relationship with this person, then you should write using their full name rather than just their first name: "Dear John Doe," or "Dear Customer."
When writing to people that you know well, you can call them by their first name. For example, if you were writing to Bob's friend Jimmy and knew that he was also a fan of the San Antonio Spurs basketball team, you could begin with "Hi Jimmy," or "Hey Spanky!"
Informal This letter format is used when you want to get in touch with someone without any prior contact.
If you begin the letter by addressing a person, end with your honest greeting. If it begins with "Dear Sir," then use yours. Keep it courteous and business-like, and you'll receive a better outcome.
Now you know how to sign a letter. But what if you need to sign a document that isn't addressed to someone? Or what if you want to sign something non-legal like an email or text message?
You can sign any document using a signature. Short for "thumbprint," a signature is when you write your name at the bottom of something you've signed. It's the only way to prove authorhip over a legal document. Without a signature, people would have no proof that you wrote it. That could get dangerous if someone was trying to steal your ideas!
When you sign a document, you're saying that you agree with everything written in it. You are not just signing your name, but also the date and usually your office or home address. If you don't include your address, recipients can't contact you if they have questions. They will have to go to another letter writer.
There are two main ways to sign a document: with an official stamp and with your own hand. An example of an official stamp is a postal service seal.