Your opening line makes or breaks your IELTS General Training letter. Get it wrong, and you're fighting uphill. Get it right, and the examiner reads the rest expecting competence. The band descriptors for Task Response and Coherence & Cohesion explicitly reward letters that match the register the prompt demands.
Here's the thing: most students swing between two extremes. Either they sound like they're reading a 1950s textbook, or they're texting a mate. There's a sweet spot in between, and I'm going to show you exactly how to find it. This is where an IELTS writing checker becomes invaluable—it catches tone shifts before they cost you points.
IELTS examiners assess your writing on four criteria: Task Response, Coherence & Cohesion, Lexical Resource, and Grammatical Range & Accuracy. Your opening line directly impacts the first two. Mess up the tone, and you're signaling immediately that you don't understand register. That costs you 0.5 to 1 full band point right off the bat.
A formal letter opening does three things at once: it addresses the recipient correctly, it puts professional distance between you and them, and it signals respect. Slip up on any one of those, and the examiner notices.
Weak: "Hi there! I hope you're doing well. I'm writing to complain about the service at your restaurant."
Good: "Dear Sir or Madam, I am writing to lodge a complaint regarding the service I received at your restaurant last week."
See the gap? The weak version feels like you're chatting to a friend ("Hi there", "I hope you're doing well") and it buries what you actually want. The strong version is formal, names the problem immediately, and keeps distance. That's the difference between band 4-5 and band 6-7.
A solid formal opening needs exactly four things. Skip one, and examiners mark you down.
Here's what it looks like when you nail all four.
Good: "Dear Mr. Thompson, I am writing to request an extension on the submission deadline for my course project due on 15 November."
Check: salutation (yes), clear purpose (requesting an extension—obvious), formal grammar (I am writing, not I'm writing), professional tone (no casual language). This is band 7 material.
I see these errors constantly from band 5 students struggling with formal letter tone evaluation.
Mistake 1: Using contractions in formal letters. You'll see students write "I'm writing to inform you that I've lost my booking confirmation." That apostrophe is a red flag. The band descriptors specifically mention Grammatical Range & Accuracy. Contractions drop you into band 5 because they signal informal speech, not formal writing.
Weak: "Hi Sarah, I'm writing because I can't find my booking confirmation and I've got a problem."
Good: "Dear Ms. Williams, I am writing to inform you that I cannot locate my booking confirmation, and I require your assistance."
Mistake 2: Padding instead of stating your actual purpose. Saying "I am writing to you" is fine, but "I am writing to inform you that I received your email" is just fluff. Say what you need. IELTS examiners value efficiency.
Weak: "I am writing to you to inform you that I want to ask you about the dates for the summer program."
Good: "I am writing to inquire about the dates for the summer program."
Mistake 3: Forgetting to name the recipient. If you know the name, use it. If you don't, use "Dear Sir or Madam" or "To Whom It May Concern" (less common in IELTS but acceptable). Vague openings look careless, and examiners notice.
The prompt tells you who you're writing to. Read it carefully.
If the prompt says "write to the manager" but doesn't give a name, use "Dear Sir or Madam" or "Dear Manager". If it gives you a name, use it. Here's why: using a name when you have one signals you actually read the prompt, and it's warmer without being casual. That's band 6-7 behavior.
Tip: If the prompt gives you a name, always use it. Write "Dear Mr. Jackson" instead of "Dear Sir or Madam", even if the prompt didn't explicitly ask for it. It shows stronger control of register.
Your second sentence (sometimes your first, depending on format) must state your purpose clearly. Not vaguely. Not mysteriously. Clearly.
Think of your opening like a newspaper headline. Answer the question: why is this letter being written? If the examiner can't answer that in the first two sentences, you've lost points on Task Response. This is where a task 1 letter tone evaluation tool helps you see if your purpose reads as crystal clear or buried.
Weak: "Dear Sir or Madam, I hope this letter finds you well. I am writing because there is something I would like to discuss with you regarding my stay."
Good: "Dear Sir or Madam, I am writing to lodge a formal complaint about the inadequate heating system in Room 307 during my stay from 8 to 12 November."
The weak version makes the reader wait. The strong version hits them with the problem immediately. That directness and specificity is what separates band 6 from band 7. The band descriptors reward clear purpose and logical organization, and your opening line establishes both.
IELTS Writing Task 1 has three letter types, and your opening changes based on which one you're writing. When reviewing appropriate letter tone, this distinction matters most at the start.
Formal letters go to institutions, officials, companies you've never met. They use "Dear Sir or Madam", full sentences, no contractions, and stay impersonal.
Semi-formal letters go to people you have some connection with but haven't built a real relationship with. They use "Dear Mr./Ms. [Name]", can be a bit warmer, but still keep professional distance.
Informal letters go to friends or people you know well. They use "Dear [First Name]", can include contractions, and sound conversational. But only write informal if the prompt asks for it.
Tip: Read the prompt three times before you write. It tells you the relationship between you and the recipient. That relationship determines your register. You can't guess your way through this.
Here are three opening lines for the same topic, adjusted for register:
Formality drops from top to bottom. The informal version uses contractions, first names, and opens with social chat. The formal version cuts straight to business. Both are correct for their context, but use the wrong register for your prompt and you'll lose marks.
Let me show you a real IELTS prompt and what a band 7 opening sounds like.
Prompt: "You have recently stayed at a hotel for a conference. The hotel was not clean and the staff were rude. Write a letter to the manager. In your letter, describe the problems, explain why you are dissatisfied, and suggest what the manager should do to improve."
Good (Band 7): "Dear Sir or Madam, I am writing to lodge a complaint regarding my recent stay at your hotel during the international business conference from 12 to 14 November. Despite the convenient location, I experienced significant issues with cleanliness and staff conduct that I feel compelled to bring to your attention."
Why band 7? The salutation is perfect. It's specific (names the dates, the event, the location). It states the purpose clearly (lodging a complaint) and hints at what comes next without overexplaining. The grammar is flawless, the vocabulary is appropriate without being showy. It's confident. It's direct. It's professional.
Here's a band 5 version of the same opening:
Weak (Band 5): "Dear Sir or Madam, I'm writing because I stayed in your hotel and there were some problems. The hotel wasn't very clean and the staff weren't nice to me. I want to tell you about these issues."
The band 5 version uses contractions (I'm, wasn't, weren't), repeats information unnecessarily ("I want to tell you about these issues" adds nothing after already naming the problems), and relies on vague language ("some problems", "weren't nice"). It sounds uncertain and immature.
Your opening doesn't just introduce the topic. It signals what structure the examiner should expect. If you say "I am writing to lodge a complaint about three specific issues", the reader expects you to then describe those three issues in order. If you don't deliver, you've broken coherence and cohesion.
The band descriptors reward logical flow and clear signposting. Your opening is your first bit of signposting. When you're also working on identifying common letter errors, this structural clarity matters just as much as grammar. You can use an IELTS writing checker to verify your opening delivers on its promise.
Weak: "I am writing about my accommodation." (What about it? What should come next? Totally unclear.)
Good: "I am writing to request a transfer to a quieter room due to ongoing noise disturbances from the adjacent unit." (Clear: there's a problem, what it is, and what you want. The body will support this.)
It's subtle, but it matters for coherence scoring. Your opening creates a promise to the reader. Keep it.
Tip: After you write your opening, ask yourself: "Does my body paragraph deliver on what this opening promised?" If not, either rewrite the opening to match your actual content, or rewrite the body to match the opening.
Run through this before you move on.
If you answer yes to all six, you're good to go. If you say no to any, fix it before you move forward.
Write your letter opening and use our free IELTS essay checker to get instant feedback on tone, grammar, and register. You'll see exactly how your opening scores against the band descriptors.
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