You're sitting in the exam. You read the prompt. You know exactly what to write. And then you type "Hi there" or "To Whom It May Concern" and instantly lose credibility with the examiner.
Here's the thing: the first three lines of your IELTS formal letter aren't just decoration. They're your opening act. Mess them up, and you've signaled to the examiner that you don't understand formal register, that you haven't studied the format, or worse, that you're careless. The IELTS band descriptors specifically reward "appropriate register" under Coherence and Cohesion. That starts the moment you write your opening.
In this post, I'll show you exactly what examiners are looking for in your letter opening, the six mistakes that kill your score, and how to fix them before they wreck your Task 1 performance.
Task 1 letters are worth 33% of your Writing score. One third. That's not nothing.
The examiner reads your opening in the first 10 seconds. They're not just scanning for spelling; they're assessing whether you understand formal English conventions. According to the IELTS band descriptors, Band 8 writing demonstrates "appropriate register" consistently. Band 6 writing is "generally appropriate," which means mistakes slip in. Band 5 writing has "some inappropriate words or expressions."
Your letter opening is where most students first make a register error. If you blow it here, the examiner's expectation for the rest of your letter drops instantly. You're fighting uphill from line one.
You're trying to be friendly. That's your instinct in real life. Forget it.
Weak: "Hi there, I am writing to complain about the poor service..."
Good: "Dear Sir or Madam, I am writing to lodge a complaint regarding the poor service..."
"Hi there" is what you'd say to a friend at a cafe. Not to a hotel manager, a university admissions officer, or a government agency. This error alone can mark you down in Grammatical Range and Accuracy for "inappropriate language choice," even though the grammar is technically correct.
Other casual openings you'll see from students: "Hey!", "Hello mate", "What's up?" None of these work for formal IELTS letters.
The IELTS letter format isn't optional. It's part of Task Response, which evaluates whether you've followed the instructions correctly.
Weak: Starting directly with "Dear Sir or Madam..." with no sender address or date above it.
Good:
15 Apple Street
Manchester
UK M1 2AB
26 August 2026
Dear Sir or Madam,
Your address goes in the top left. The date goes below it, or on the right side. Then a line break. Then your salutation. This layout signals that you know professional letter format. Skip it, and you're telling the examiner you haven't prepared.
The prompt will tell you whether you're writing to a named person or an unknown recipient. If the prompt says "write to the manager of a hotel" with no name given, then "To Whom It May Concern" is acceptable. But most IELTS prompts give you a title, a company, or a specific department.
Weak: Prompt says "write to the hotel manager." You write: "To Whom It May Concern..."
Good: Prompt says "write to the hotel manager." You write: "Dear Sir or Madam," or if a name is given, "Dear Mr. Smith,"
"To Whom It May Concern" is outdated and overly formal. It also signals that you're using a generic template rather than responding to the specific prompt. Examiners notice.
British English (which IELTS uses) requires a comma after "Dear Sir or Madam" or "Dear Mr. Smith." American English sometimes omits it. Don't mix conventions.
Weak: "Dear Sir or Madam: I am writing to..."
Good: "Dear Sir or Madam, I am writing to..."
That colon after the salutation is American. The comma is British and is what IELTS expects. This falls under Grammatical Range and Accuracy. It's a small mark, but on an exam where every point counts, small marks add up.
Some students get too casual because they think it shows friendliness or confidence. Wrong move.
Weak: Prompt says write to "Professor Sarah Chen about a course complaint." You write: "Dear Sarah, I am writing to..."
Good: "Dear Professor Chen, I am writing to..."
Unless the prompt specifically instructs you to use a first name (which is rare), use the title and surname. Professor, Dr., Mr., Ms., Mrs. Get it right.
If the prompt gives you "Ms Johnson" and you write "Dear Mrs. Johnson" or "Dear Ms Jonson," that's a careless error. These mistakes cost you in Grammatical Range and Accuracy because they show lack of attention to detail.
Weak: Prompt says write to "Mr. Ahmed Patel." You write: "Dear Mr. Ahmed," or misspell the last name.
Good: Copy the name exactly as given in the prompt. "Dear Mr. Patel,"
Let me give you the exact structure for starting your IELTS formal letter. Memorize this.
Here's a real example based on an actual IELTS prompt:
42 Elm Road
Bristol
UK BS1 4JY
26 August 2026
The Manager
City Hotel
Bristol
UK
Dear Sir or Madam,
I am writing to complain about my recent stay at your hotel last month. Although the location was convenient, I was extremely disappointed by the quality of the room and the poor service provided by your staff.
That's the structure. Use it every time. Don't improvise.
The IELTS Writing band descriptors for Task 1 assess four criteria: Task Response, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy.
Your letter opening contributes to all four, but especially the last three.
An examiner can place you at Band 7 or Band 6 purely based on whether you understand formality and format. Get your opening right, and you've already proven you've studied the task.
After "Dear Sir or Madam," your first line should state your purpose clearly. Don't ramble.
Weak: "Dear Sir or Madam, I hope this letter finds you well. I am writing to you today because I recently stayed at your hotel and had an experience that I felt I should tell you about because it was not good."
Good: "Dear Sir or Madam, I am writing to lodge a complaint about my recent stay at your hotel."
The weak version is wordy, repetitive, and wastes words. You have 150 words minimum and typically 160-180 words to work with. Don't spend them on filler.
Use phrases like these for your opening line, depending on the letter type:
These formulas are clear, formal, and task-specific. Use them.
Different prompt types call for different opening approaches. Here's what you might encounter:
Prompt Type 1: Complaint Letter
Example: "You stayed at a hotel and had a bad experience. Write to the manager to complain."
15 Park Lane, Leeds, UK LS1 5DA
26 August 2026
The Manager, Premier Hotel, Leeds
Dear Sir or Madam,
I am writing to lodge a formal complaint regarding the poor standards of accommodation and service I experienced during my recent stay at your hotel in July.
Prompt Type 2: Request Letter
Example: "Write to a language school requesting information about courses."
28 Oak Street, Dublin, Ireland D1 1AB
26 August 2026
The Director, International Language Academy, Dublin
Dear Sir or Madam,
I am writing to inquire about the English language courses you offer for adult learners.
Prompt Type 3: Application Letter
Example: "Write to apply for a job or volunteer position."
50 Grove Avenue, Sydney, Australia NSW 2000
26 August 2026
The Hiring Manager, Global Tech Solutions, Sydney
Dear Sir or Madam,
I am writing to apply for the Marketing Assistant position advertised on your company website.
See the pattern? Each opening is direct, formal, and immediately tells the reader why they're reading your letter. That's task-responsive writing, which is exactly what examiners want to see.
Tip: Before you write, read the prompt twice. Underline the letter type and the recipient. This 10-second investment prevents half your opening mistakes.
Knowing the rules isn't enough. You need to check yourself before the exam.
After you write your letter, go through this checklist for your opening:
If you can't tick every box, revise before you submit.
When you're working on the overall tone of your letter, our guide on recognizing formal vs informal register breaks down the subtle differences that cost band points. Understanding register across your whole letter makes the opening even stronger.
Better yet, get instant feedback on your letter opening with an IELTS letter opening checker. Our free IELTS writing checker analyzes your letter salutation, format, and tone in seconds. When you see exactly where examiners mark you down, you learn fast. You can practice on multiple prompts, check your openings instantly, and track where your mistakes cluster. That's how you fix the pattern, not just the individual letter.
Your opening deserves a closing that matches it in tone and formality. If you've mastered the formal salutation, don't undermine yourself with a weak sign-off. Check our guide on letter closing phrases to make sure your final lines are just as polished as your opening. For a broader look at error detection across your full writing test, explore our IELTS writing correction tool to catch mistakes in both Task 1 letters and Task 2 essays.
Don't let letter opening mistakes cost you band points. Get instant feedback on your IELTS writing with our free letter opening checker, and see exactly where you can improve.
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