How to Write an Official Letter: Format, Template & Example

An official letter is a formal written communication sent to a company, institution, government office, or individual for a professional purpose — such as a job application, a leave request, a complaint, or a formal inquiry. Knowing the correct official letter format is an essential skill for the workplace, school, and everyday administrative tasks.

This guide walks through everything you need: the standard structure, a free official letter template, a complete official letter example, common types, and answers to frequently asked questions.

Table of Contents

1. What Is an Official Letter?
2. Official Letter Format: Structure Explained
3. Official Letter Template (Free to Copy)
4. Official Letter Example
5. Types of Official Letters
6. Tips for Writing an Effective Official Letter
7. Write Nepali Letters Online for Free
8. Frequently Asked Questions

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What Is an Official Letter?

An official letter is a structured, formal document used to communicate with an organization or authority in a professional capacity. Unlike a casual note or text message, it follows a fixed layout — sender details, date, recipient details, subject, salutation, body, and closing — and uses a respectful, businesslike tone throughout.

Official letter vs. formal letter vs. informal letter:

Type	Tone	Structure	Common Use
Official Letter	Formal, professional	Fixed structure with addresses, subject line, and signature	Government offices, institutions, workplaces
Formal Letter	Formal, polite	Similar structure, slightly more flexible	Business correspondence, academic letters
Informal Letter	Casual, personal	No fixed format	Friends, family, personal notes

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Official Letter Format: Structure Explained

Every official letter generally includes these parts, in this order:

Part	Purpose
Sender's Address	Your address, placed at the top of the letter
Date	The date the letter is written
Recipient's Address	Name, designation, and address of the person or office you're writing to
Subject Line	A one-line summary stating the purpose of the letter
Salutation	A formal greeting, such as "Dear Sir/Madam"
Body	The main content — introduction, purpose, supporting details, and request
Closing	A polite closing line and formal sign-off, such as "Yours faithfully"
Signature	Your name, and designation if applicable

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Official Letter Template (Free to Copy)

Copy this official letter template and fill in your own details:

[Your Name]
[Your Address]
[City, Postal Code]

[Date]

[Recipient's Name / Designation]
[Organization Name]
[Organization Address]

Subject: [One-line subject of the letter]

Dear [Sir/Madam/Recipient's Title and Name],

[Opening line — state who you are and why you are writing.]

[Body paragraph — explain the purpose in detail: request, complaint, application, etc. Keep it clear and to the point.]

[Closing paragraph — mention any action you'd like the recipient to take, and thank them.]

Yours faithfully,
[Your Signature]
[Your Full Name]
[Your Designation, if applicable]

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Official Letter Example

Here's the template filled out as a real official letter sample — a leave application to an employer:

Sandesh Lamichhane
123 Baneshwor Road
Kathmandu, 44600

June 22, 2026

The Manager
ABC Trading Pvt. Ltd.
New Baneshwor, Kathmandu

Subject: Application for Sick Leave

Dear Sir/Madam,

I am writing to inform you that I am unwell and unable to attend office for the next three days, starting June 23, 2026. I have been advised by my doctor to take complete rest during this period.

I have already briefed my colleague, Mr. Rahul Shrestha, on my pending tasks so that work is not affected during my absence. I kindly request you to grant me leave for these three days.

I would be grateful for your approval and will resume work on June 26, 2026. Thank you for your understanding.

Yours faithfully,
Sandesh Lamichhane
Sandesh Lamichhane
Sales Executive

Bonus Example: Complaint Letter

Anita Gurung
Tower View Apartments, Flat 4B
Pokhara, 33700

June 22, 2026

The Customer Service Manager
Himal Internet Services
Lakeside, Pokhara

Subject: Complaint Regarding Repeated Internet Service Outage

Dear Sir/Madam,

I am writing to bring to your attention a recurring internet outage on my connection (Account No. HIS-4521) over the past two weeks. The service has been disrupted almost daily, affecting my work-from-home schedule.

I have already reported this issue twice through your helpline, but the problem persists. I kindly request a technical inspection at the earliest and a credit adjustment for the affected days.

I appreciate your prompt attention to this matter and look forward to a quick resolution.

Yours faithfully,
Anita Gurung
Anita Gurung

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Types of Official Letters

Official letters come in many forms, each suited to a different purpose:

Letter Type	Common Use
Application Letter	Applying for a job, leave, admission, or internal transfer
Complaint Letter	Reporting a service issue, error, or workplace concern
Request Letter	Asking for information, documents, approval, or resources
Recommendation Letter	Endorsing someone for a job, scholarship, or opportunity
Resignation Letter	Formally informing an employer of your resignation
Inquiry Letter	Requesting information about a product, service, or process
Apology Letter	Formally apologizing for an error or missed obligation
Invitation Letter	Formally inviting someone to an event or function
Approval Letter	Confirming approval of a request, leave, or proposal

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Tips for Writing an Effective Official Letter

• Keep it concise: Stick to one page wherever possible — officials read many letters, so get to the point quickly.
• Use a formal tone: Avoid slang, contractions, and casual phrasing throughout the letter.
• State your purpose early: The first line or two should make clear why you're writing.
• Be specific: Include dates, reference numbers, or names so the recipient doesn't need to ask follow-up questions.
• Use a clear subject line: Summarize the letter's purpose in one short line so the recipient understands the intent immediately.
• Proofread before sending: Spelling and grammar mistakes can make even a well-structured letter look careless.
• End politely: Always thank the recipient and close with a respectful, standard sign-off such as "Yours faithfully" or "Sincerely."
• Letters can be sent by email too: As long as the format and professional tone are maintained, an official letter sent as an email or PDF attachment is equally valid today.

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Write Nepali Letters Online for Free

If you need to write your official letter, application, or request in Nepali, you don't have to format everything by hand. TypeNepal's Letter Creator lets you create Nepali letters and applications online for free — just fill in the details, and a properly formatted Nepali letter is generated for you instantly.

More Free Tools from TypeNepal

• Nepali Typing Tool — type in English and get Nepali text instantly
• Unicode Converter — convert between Nepali fonts and Unicode
• Nepali Fonts — download popular Nepali fonts for free

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Frequently Asked Questions

What is the correct format of an official letter? An official letter format includes the sender's address, date, recipient's address, subject line, salutation, body paragraphs, a closing line, and a signature — in that order.

Can an official letter be sent by email? Yes. An official letter can be sent by email while keeping the same structure and formal tone as a printed letter, often as the email body or a PDF attachment.

What is the difference between an official letter and a formal letter? The terms are often used interchangeably. An official letter typically refers to formal correspondence with an institution or authority, while a formal letter is a broader term covering any professional, non-casual letter, including business and academic correspondence.

What should the subject line of an official letter say? The subject line should briefly summarize the purpose of the letter in one line, so the recipient understands the intent at a glance — for example, "Subject: Application for Sick Leave."

How do you start an official letter? Start with your address and the date, followed by the recipient's address, a clear subject line, and a formal salutation such as "Dear Sir/Madam" before beginning the body.

How do you end an official letter? End with a polite closing line, a formal sign-off such as "Yours faithfully" or "Sincerely," and your signature followed by your printed name and designation.

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With the right official letter format and a respectful tone, writing a professional letter becomes simple — and tools like TypeNepal's Letter Creator make formatting your Nepali letters even easier.