How to Write an Informal Letter Format to Family and Friends
informal letter format

How to Write an Informal Letter Format to Family and Friends

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  • Post last modified:January 8, 2021
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The informal letter format for private correspondence is composed of a casual or emotional tone.

Informal letters clearly understand that instead of a company, these written friends and close family members are.

Types of Informal Letter Format

  1. Letter to Relative and Friends
  2. Congratulation Letters
  3. Letters of invitation, etc.

Format of informal letter:


Here is the sender’s name, address, and contact and email information. The one who sends the letter is the sender.


The date of the submitted letter means that you are writing the letter on D/M/Y so that you can write 10 Jan 2021.

SALUTATION: (Hi/Hello/dear)

Greetings are that we usually use in a letter (Dear Sir/Madam)


The actual message is included in the body of the text.


It is the writing end of the letter, meaning Goodbye in general terms, essentially. (Yours faithfully/Yours sincerely/ Your loving) is commonly used.


Note: Details of the receiver and the subject are not needed in an informal letter.



New Delhi

Date: D/M/Y

My dear Father,

I received your letter today, feeling guilty about keeping you and mother quiet and worried about me. We are going to hold a marriage ceremony function here before the closure of our college for Christmas.

I, as one of the main parts of the proposed marriage function, was very busy with the preparation of the ceremony and thus forgot to drop you a letter in time. I hope you will please excuse me for the lapse. I am keeping well—my respect to you and mother and love to [your brother, sister if mention]. 

Your loving son,

[Your name]


Informal letter to Sister inquiring about her health in English format.



My Dear Sister,

I have just received a letter from [his, her name] and learn that you are not keeping well. He has not written in detail about the nature of the ailment, and that has added to my anxiety. I hope you have already seen a doctor and as per his advice, have taken medication. Please do not neglect to take diet and medicine regularly and on time.

I have learned that when you are too diligent about other people’s welfare, you are too casual about your own health. I wished I would be by your side to take care of you, but my last annual examination is just knocking at the door, and I am terrified, the father may disapprove of my going home right now. I pray to God that he may make you all right very soon.

My respect to you and father, mother, and love to [here your other’s family members]. I’m going to wait anxiously for more news about your health.

Your  affectionate son/daughter,



You May Also Read:

Informal letter to a friend congrats and advising him to work hard.



I have received your letter along with a xerox of your performance sheet. First of all, I want to give you the congrats on this level of victory. 

I am gladly happy that you came out successful in that level of sports but, I could not at all be satisfied with the numbers obtained to the next level within a year you are go-to for advanced sports level along with thousands of other your competition candidates. Only a few hundred out of thousands will get a chance to jump to the next level. 

You have a lot of competition at that level which thinking about defeating you. So, you are among those few hundred at the top. If you are doing well and thinking about how to beat your rivals, then you will win these levels to the next final level.

You should, therefore, devote more time to practice, especially for your that format. I was watching your previous performance that you were a little weak in running.

Your loving friend,



Informal letter to a friend inviting him to your home occasion

[Full Address]


Dear Alex,
On the 25th of Christmas in my home, We arranged a small event party, and you’ll be pleased to know that a party will be held at our old residence on Wednesday at 9 p.m. on that occasion. It is my earnest request for you to be present at my party at home.
There will be music, dance, dinner, and many of our common relatives and friends will be present at the party. Your presence will be on occasion, a source of great joy for us all.

Yours truly,

[Your Name]



Format of informal letter is straightforward to you can understand and write as your condition through our informal letter format. There is another informal letter in it to a friend format if you required, and you can let us know in the comment you want so that we can put that format on our post.

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Atif Seikh

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