# Business Letter in Business Communication: 9 Questions Answered

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Last updated: 2026-07-07
Language: en
Primary audience: professionals improving communication at work
Owner: Headway Skills
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## Short answer

What a business letter is in business communication: its parts, types, format, and when to send one instead of an email. Nine questions answered.

## Key facts

- Title: Business Letter in Business Communication: 9 Questions Answered
- Category: Communication
- Primary skill: Communication
- Related skills: Professional Behaviors, Influence
- Primary keyword: business letter in business communication
- Source page: https://headwayskills.com/knowledge/communication/business-letter-in-business-communication/

## What this page covers

- What a business letter is in business communication: its parts, types, format, and when to send one instead of an email. Nine questions answered.
- Practical guidance for business letter in business communication
- How this topic connects to Communication

## Detailed explanation

A business letter in business communication is a formal written document sent between organizations, or between an organization and a person, to handle official business: a request, a complaint, an application, an offer, an acknowledgment. It follows a prescribed layout, uses formal language, and creates a permanent record of what was said and when.

If you are reading this because a letter has landed on your to-do list, or because it is on a syllabus, the format is the part everyone teaches and the easy part to get right. The harder question is when a letter is the correct choice at all, and what belongs in the body once the address block is in place. Both are answered below.

## What is a business letter in business communication?

Business communication covers everything from [a corridor conversation](/knowledge/communication/verbal-and-written-communication/) to a company-wide announcement. The business letter occupies one specific slot in that range: the formal, on-the-record, written end. It is the channel you use when the message needs to outlast the moment.

Wikipedia's entry on the business letter and Lumen Learning's open business-communication courseware give the same reason the format has survived the move to digital work. A letter produces a permanent, dated record of intent or action, and recipients tend to treat it more seriously than a faster channel. The effort and the delay are not drawbacks. They are part of the message.

## What are the parts of a business letter?

Sources disagree on the count, and the disagreement is useful. Study.com's breakdown names six components: the heading or sender's address, the date and the recipient's inside address, the salutation, the body, the complimentary close, and the signature block. Lumen Learning's courseware pushes the count as high as fifteen by naming the optional elements separately — subject or reference line, attention line, enclosure notation, copy notation, postscript.

That is not a contradiction. There is a small mandatory core that appears in every business letter, and a set of situational extras you add when the situation calls for them. If you are enclosing a resume, you add the enclosure notation. If you are not, you do not. Learn the six, recognize the rest.

## What format should a business letter use?

Block format is now the default across essentially every current guide, including Indeed's structural breakdown and PostGrid's format reference: one-inch margins on all four sides, every line flush left, no paragraph indentation, single spacing with a blank line between paragraphs. Twelve-point Times New Roman, Arial, or Helvetica. Modified block and semi-block still appear in older textbooks, but they are variants rather than live choices.

There is a practical reason block format won. Left-aligned text survives conversion to PDF and to an email attachment without collapsing, which indented layouts designed for typewriters do not. The wider point is worth noticing: in a document this convention-bound, matching the norm is invisible and departing from it is the only thing anyone remarks on.

## What are the main types of business letters?

Indeed catalogs fifteen distinct types: cover letters, letters of recommendation, interview follow-up letters, offer letters, sales letters, letters of commendation, resignation letters, thank-you letters, complaint letters, adjustment letters, order letters, inquiry letters, acknowledgment letters, letters of intent, and letters of apology.

The list is worth reading once, and then worth forgetting in favor of the pattern underneath it. The fifteen types cluster into four purposes: informing someone, requesting something, persuading someone, and repairing a relationship. A complaint and a request share a category name in no textbook, but both are asking a reader to do something they had not planned to do. Purpose, not category label, decides what the body has to accomplish.

## What is the difference between a business letter and a business email?

Comparison guides such as Bizfluent's and Hidayat Rizvi's draw the line on four axes, and they are consistent about all four.

Formality: the letter follows a strict prescribed structure, the email is flexible. Permanence: the letter is an archival record, the email is an inbox item. Expected response speed: days for a letter, hours for an email. Identifying detail: a letter carries full postal addresses for both parties, an email carries a signature block.

The useful implication is that these are not two politeness levels of the same thing. They are different tools with different properties, which is why the next question matters more than this one.

## When should you send a business letter instead of an email?

Choose the letter when the record is the point — when you may need to show later exactly what was communicated and on what date. Choose it when the matter is serious enough that the reader should feel its weight before reading a word. Choose it for formal external recipients, contractual matters, and anything with legal texture. [Choose the email](/knowledge/communication/business-email-writing/) for anything where speed, convenience, or an ongoing back-and-forth matters more than ceremony.

There is one consequence worth being deliberate about. Sending a letter where an email would have been expected reads as escalation. If you are formalizing a complaint that has been ignored over email, that escalation is exactly what you want to communicate. If you are asking a colleague a routine question, it is not.

## How do you start a business letter if you don't know the recipient's name?

Current guidance, including Instructional Solutions' updated salutation reference and Debrett's, is to find the name first. Check the website, the job posting, the company directory, LinkedIn. Most of the time it is findable.

When it genuinely is not, address the role or the team: "Dear Hiring Manager," "Dear Customer Support Team." Both sources now treat "To Whom It May Concern" and "Dear Sir/Madam" as dated, though they note the older forms hold up better in a printed letter than in an email. This is one of the few places where a textbook may be behind current practice, so it is worth checking what your own source says against what recipients actually see today.

## How long should a business letter be?

One page. The convention is near-universal across the guidance, with roughly 250 words treated as a page's worth of text.

Be clear about what that number is, though. No source ties it to research; it is an editorial norm repeated across teaching sites and templates, not a finding. The reason behind it is sound anyway. A reader who receives two pages has to decide which parts to read, and that decision should have been made by the writer.

## What should the body of a business letter actually say?

This is where the available guidance thins out dramatically. Across the top results for this topic, coverage of the body rarely gets past "be concise," "be clear," and "use formal language" before returning to layout. Yet a letter with a flawless address block and a vague, reader-indifferent body still fails.

Four things carry most of the load. [State the main point](/knowledge/communication/business-writing-skills/) in the first paragraph rather than building to it. Make the request or the information specific enough to act on, including any date or figure. Say what is [in it for the reader](/knowledge/influence/whats-in-it-for-me/), because most business letters are asking for something and the reader's reason to say yes is rarely obvious to them. And close with one clear next step rather than a general willingness to be contacted.

None of that is about formatting, which is why the templates skip it — and why it is worth [checking your written communication](https://assessment.headwayskills.com/) before the next letter that actually matters goes out.

## The skills that make a formal letter easier to write

Read those nine answers back to back and something becomes visible. Only the first three are really about the letter. The rest are judgment calls: which channel to use, how formal to be, what the reader needs, what to ask for. The format is learnable in an afternoon. The judgment is the part that keeps paying out.

**Communication** is the one doing most of the work here. The choice between writing and conversation is a genuine decision with rules behind it — you write when the other person needs time to absorb it, when the exchange has to be documented, when the message is one-way information. And the principles that make an email land make a letter land too: main point first, clear and direct, brief, adapted to the person receiving it, positive where you can be. A business letter is not a separate discipline from the rest of your written work. It is the formal end of the same one.

**Professional Behaviors** are what the format is actually encoding. Correct titles, appropriate register, care with confidential information, writing about third parties as though they will read it — these are the same workplace norms as being on time or dressing for your role, just rendered in print. Understanding them as learnable conventions rather than arbitrary rules is what makes the format feel purposeful instead of fussy, and it is what lets you stay recognizably yourself inside a formal document.

**Influence** is the skill behind the body. Most letters are asking for something: a job, a refund, a decision, an agreement. That makes them persuasion on paper. Work out what the reader gets from saying yes before you draft. Keep it simple. Use a concrete example rather than a general claim. Acknowledge the obvious drawback instead of hoping it goes unnoticed. Then follow up on whatever you committed to — the letter is the opening move, not the whole play.

Those three turn up far beyond correspondence, and they are three of twelve such skills that the **free Work Skills Test** measures, so if you want to know which one is currently costing you the most, you can [see where your skills stand](https://assessment.headwayskills.com/).

## What this means for your own writing

Some of this may already describe how you work. If you tend to reread a message before sending it, or to think about how it will land rather than only what it says, you are already doing the thing the format cannot do for you.

None of these are fixed. They are behaviors, which means the gaps are the kind that close with practice rather than the kind you are stuck with — and you do not have to become a different sort of person to close them. What does change is the stakes. The letters get more consequential as your responsibilities grow, and so do the conversations and the emails around them.

You have already done the part most people skip, which is treating a formal letter as something to understand rather than something to copy from a template.

## Find out where your skills stand

The remaining step is a small one: getting an honest read on which of these skills you have and which you have not built yet.

The Work Skills Test is a **free** self-assessment of your work skills. It takes about seven minutes and shows you where you stand across all twelve — including the communication, professional conduct, and influence skills behind every letter you will write — so you can see which ones will make the biggest practical difference to you right now rather than guessing.

**[Take the skills test](https://assessment.headwayskills.com/)**

No cost, and nothing to prepare beforehand.

## Who this is for

- Professionals building practical workplace skills
- Readers looking for specific, usable work advice
- Managers, educators, and coaches supporting career readiness

## Common questions

### What is this guide about?

What a business letter is in business communication: its parts, types, format, and when to send one instead of an email. Nine questions answered.

### Which Headway skill does this connect to?

This guide connects primarily to Communication. It also relates to Professional Behaviors, Influence.

### What is the recommended next step?

Use the free Work Skills Test to reflect on which work skill to improve next.

## Related pages

- https://headwayskills.com/knowledge.md
- https://headwayskills.com/knowledge/communication.md
- https://headwayskills.com/knowledge/professional-behaviors.md
- https://headwayskills.com/knowledge/influence.md
- https://headwayskills.com/work-skills-test.md

## Citation guidance

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## Change log

- 2026-07-07: Content collection version published.
