A formal letter header is the block of information at the top of your letter that includes your contact details, the date, and the recipient’s address. It sets the tone for the entire document and ensures your letter reaches the right person and looks professional.
What Goes in a Formal Letter Header?
The exact contents of a formal letter header depend on the format you are using (block, modified block, or semi-block) and whether you are sending a physical letter or an email. In a standard business letter, the header typically contains:
- Your name and address (or your company’s letterhead)
- Your phone number and email address (optional but recommended)
- The date (written out in full, e.g., “October 3, 2025”)
- The recipient’s name, title, company, and full address
If you are using letterhead that already includes your name and address, you only need to add the date and the recipient’s information. In an email, the header is often simplified: you include a clear subject line, and your contact information appears in your signature block.
Why the Header Matters
The header is the first thing a reader sees, and it serves several practical purposes. It tells the recipient who you are and how to reach you, it establishes the date of the letter for record-keeping, and it ensures the letter is delivered to the correct person and department. A missing or incorrect header can delay your letter or make it look careless. For example, if you forget the recipient’s title or get the company name wrong, the letter may be routed incorrectly or dismissed as spam. In formal correspondence, the header also signals that you understand professional conventions, which can influence how seriously your message is taken.
How to Format the Header Correctly
Most formal letters use the block format, where everything is left-aligned and single-spaced with a blank line between sections. Here is the standard order:
- Your contact information (if not on letterhead): name, street address, city, state, ZIP code, phone, email.
- Date: write the full month, day, and year (e.g., “March 12, 2025”). Do not abbreviate the month.
- Recipient’s details: name, job title, company, street address, city, state, ZIP code.
Leave one blank line after your contact info, one after the date, and one after the recipient’s address. Then you can add a subject line (optional) or go straight to the salutation. If you are using modified block format, your address and the date are indented to the center or right, but the recipient’s address stays left-aligned. For a semi-block format, the same indentation applies, and the first line of each paragraph is also indented.
Common Mistakes and How to Avoid Them
People often make small errors in the header that can undermine a professional letter. Here are the most frequent ones:
- Using the wrong date format – Avoid “3/12/25” in a formal letter; write “March 12, 2025.”
- Omitting the recipient’s title – Use “Dr.,” “Mr.,” “Ms.,” or a professional title like “Director of Marketing” when known.
- Incorrect addresses – Double-check the street address, city, and ZIP code. A typo can delay delivery.
- Including unnecessary personal details – Your social security number, birthday, or other sensitive info should never appear in a header.
- Forgetting the subject line – While optional, a subject line like “RE: Application for Marketing Manager Position” helps the recipient immediately understand the letter’s purpose.
Another common issue is mixing formats – for example, left-aligning the date but centering your address. Pick one format and stick to it consistently.
Formal Letter Header Template
Your Name
Your Street Address
City, State ZIP Code
Phone Number
Email Address
Date: _________________________
Recipient’s Name
Recipient’s Job Title
Company Name
Company Street Address
City, State ZIP Code
Subject: _________________________
Dear _________________________:
_________________________
Sample (fictional):
Jane Smith
123 Maple Street
Springfield, IL 62704
(555) 123-4567
jane.smith@email.com
Date: October 3, 2025
Mr. John Doe
Hiring Manager
Acme Corporation
456 Oak Avenue
Springfield, IL 62704
Subject: Application for Administrative Assistant Position
Dear Mr. Doe:
[Body of letter]
Header Variations for Different Situations
Not all formal letters are the same. Here are a few variations you might need:
- Business letter with letterhead: If your company’s letterhead already has the logo and address, skip your own contact info and start with the date.
- International letter: Include the country name in both your address and the recipient’s address, and write the date in the format used in the recipient’s country (e.g., “3 October 2025” in the UK).
- Email header: Use a clear subject line, and put your contact details in your signature block rather than at the top of the email body.
- Letter to a government agency: Some agencies ask for specific reference numbers or case numbers in the header – check their guidelines.
Frequently Asked Questions
Should I include my email and phone number in the header?
Yes, unless you are using letterhead that already includes them. Including your contact information makes it easy for the recipient to respond. In a physical letter, put them below your address; in an email, they belong in your signature.
What if I don’t know the recipient’s name?
If you cannot find a specific name, use a job title or department, e.g., “Human Resources Department” or “Customer Service Manager.” You can also use “Dear Sir or Madam” as a last resort, but it is always better to find a name.
Do I need a subject line in a formal letter?
A subject line is optional but recommended. It gives the reader an immediate idea of the letter’s purpose and helps with filing. Place it one blank line after the recipient’s address and before the salutation.
How do I format the date in a formal letter?
Write the month in full, followed by the day and a comma, then the year – for example, “November 15, 2025.” Do not use all-numeric dates like “11/15/25” because they can be ambiguous, especially in international correspondence.
Can I use a header in an email?
Yes, but it is simpler. In an email, the “To,” “From,” and “Date” fields are already handled by the email system. You just need a clear subject line and a professional signature block with your name, title, and contact details.
What is the difference between a header and a salutation?
The header is the block of address and date information at the top. The salutation is the greeting line, such as “Dear Mr. Smith:” or “Dear Hiring Manager:”. They are separate parts of the letter, with the salutation appearing after the header.
Final Tips for a Polished Header
Before sending your letter, double-check the header for accuracy and consistency. Ensure the recipient’s name is spelled correctly and their title is right. If you are sending a physical letter, use a standard font like Times New Roman or Arial in 10–12 points, and keep the header aligned with the rest of the letter. For emails, make sure your subject line is specific and professional – avoid vague phrases like “Hello” or “Question.” A well-crafted header might seem like a small detail, but it is the first impression you make, and it can set the stage for a positive response.