Informal Letter Format, Types of Informal Letters with Samples

Informal Letter Format

An informal letter is a letter that one writes to its friends and relatives. Writing a letter is a skill that is losing its charm with time. But it is very important to know how to write an informal letter. Informal letters are written to the close acquaintances of the sender or writer. Before the telephonic conversations and Chatting applications, it was the informal letters that kept people in touch. Informal letters were mainly used for personal communications, mainly to someone whom the sender knows well.

Format of an Informal Letter (Pointers)

  1. Address of the sender
  2. Date
  3. Greetings
  4. Introduction
  5. Body
  6. Conclusion
  7. Signature

Informal Letter Format with Examples

While writing an informal letter the format below can be referred to:


Address of the sender in 2-3 lines 


<Greeting> Dear friend or name or the relative referring to

<Introduction> Asking the well how of the receiver and expressing your well-being.

<Body > Here the sender can write with the details. The body of an informal letter can be as long as possible unlike informal letters. There are no limitations while writing an informal letter.

In the last paragraph do wish the elders, kids in the receiver’s family and wish for their well-being. The sender can also mention the words like “Waiting for your reply or response”

<Conclusion> Now comes the ending of the letter. One can use words like “Warm regards” while concluding an informal letter.

<Signature> Here the sender can either write his name or sign it.


Major Differences between a formal and informal letter

Here are some of the differences between a formal and an informal letter that must be understood well before beginning the writing.

S.No.BasisFormal LetterInformal letter
1LengthShort and crispVery detailed and long
2GreetingSir, ma’am, name of the companyFriend, name of the receiver
3AddressAddress of both sender and receiverOnly the address of the sender is mentioned
4BodyTo the point with proper referencesNo such prescribed limitations
5SubjectThe proper subject should be thereNo need for subject
6ConclusionExpressing gratitudeWishing every acquaintance with respect
7SignatureThe logo or seal of the sender must be thereThe only name will do the job
8Written toOrganisations and formal institutionsClose acquaintances
9Replaced by The formal letters are replaced by E-mails or PDFsThe informal letters are now replaced by phone calls, video calls, or chatting applications.

Some of the examples of Signature in an informal letter

  • With Love
  • Lots of Love
  • Best Wishes
  • Kind Regards
  • Warm Regards

Points to remember while writing an informal letter

  1. In the beginning, do mention it if the letter is a response to a previous letter.
  2. When writing an informal letter make sure to mention the sender’s address at the beginning of the letter
  3. Do not write a subject in an informal letter as they are to know about the well-being of the receiver or for sharing joys and sorrows and not for a particular purpose.
  4. Do wish the elders and state love for the children in the family
  5. Always ask and share yours doing well in life.
  6. The last paragraph of the body does express that the receiver’s response is important and awaited.
  7. Frame the sentences well that there is no place for misunderstanding.
  8. If writing some confidential information or something that needs proof keep a copy of the same.

Check Formal Letter Format & Samples

Informal Letter Format- FAQs

Q. Whom do we write an Informal letter to?

Ans. We write informal letters to our close acquaintances like friends and relatives.

Q. How to conclude an Informal letter?

Ans. An informal letter should be concluded with a statement expressing love and respect to the kinds and elders respectively.