Here's the thing: most students lose 2-3 band points on Task 1 letters not because their grammar is weak, but because their structure is invisible. You'll write a solid paragraph, then bury it in the wrong place. The examiner can't give you points for what they can't find.
Let me be blunt. 40% of Task 1 marks come from Task Response and Coherence & Cohesion combined. That means if your letter wanders all over the page, you're capping yourself at Band 6 before you even open your mouth. A Band 7 letter has a clear skeleton. Every paragraph does one job. Every sentence sits where it belongs.
By the end of this guide, you'll know exactly how to structure a formal or semi-formal letter so an examiner can follow your thinking without squinting. We'll walk through the real Band 7 format, show you what kills it, and give you a repeatable system that works for any prompt.
Band 7 letters follow a consistent blueprint, and it's simpler than you think. You need five clear sections, in this order: your address, the date, their address, the greeting, the body paragraphs, the closing phrase, and your signature.
That's it. No sidebar notes. No footnotes. No creativity with placement. Examiners see thousands of letters a year. They scan for this formal letter structure instantly. When it's there, they relax. When it's not, they work harder, and that costs you points in Coherence & Cohesion—25% of your Task 1 score.
Tip: Check the task image first. Some IELTS prompts show you the exact format to follow. If it shows addresses, use them. If it doesn't, include your full address and theirs at the top, left-aligned. When in doubt, go formal.
Your address sits at the top. Yours first (sender's address), then the date, then theirs (recipient's address). Put three blank lines between your address and theirs. That spacing actually matters—it's what examiners expect from a formal letter.
Here's what works:
Good:
42 Riverside Lane
Manchester M1 5QZ
United Kingdom
1 May 2026
The Manager
Green Valley Hotel
Edinburgh EH2 1AB
Dear Sir or Madam,
And here's what kills you:
Weak:
Manchester 1 May 2026 Dear Sir or Madam, I am writing to...
(All crammed together. The examiner sees a blob, not a formal letter.)
The salutation matters too. If you know the person's name, use "Dear Mr. Smith," or "Dear Ms. Patel,". If you don't, use "Dear Sir or Madam,". Then match it in your closing: use "Yours faithfully," for "Sir or Madam" and "Yours sincerely," for a named person. Get that pairing wrong and you lose coherence points.
Band 7 writers do this. They open the body with a single sentence that tells the examiner exactly why they're writing. This is where your IELTS writing checker would flag weak openings.
Your first sentence should name the situation and your intent. No rambling. No small talk. Just the core reason in one clean sentence.
Good: I am writing to lodge a complaint about the defective laptop I purchased from your store on 15 April.
Weak: I bought a laptop and it's not very good. I'm not happy with the quality and I want to tell you about it because it doesn't work properly.
(Vague. Repetitive. No dates or specifics.)
The strong version tells you the action (complaint), the product (laptop), and the date. An examiner reads that opening line and knows you understand the task. That's Band 7 Task Response right there.
This is where most students mess up. They write one big wall of text, or they jump between ideas like a pinball machine. Band 7 letter organization has rhythm.
After your opening sentence, you need 2-3 body paragraphs. Each paragraph tackles one specific point. Here's the pattern: topic sentence, supporting details, link to your request or next idea.
Real paragraph structure (complaint letter):
Topic sentence: "The laptop has three major problems."
Details: "First, the screen flickers constantly. Second, the keyboard has unresponsive keys. Third, the battery drains in under two hours."
Link: "These faults make the device unusable for my work."
Each body paragraph does one job. One covers the problem. One covers the impact. One covers your request. They don't overlap. The examiner sees clear letter organization and marks you higher in Coherence & Cohesion.
You've probably heard "use linking words" a hundred times. But Band 6 students throw them in randomly. Band 7 students use them deliberately.
Within paragraphs, use simple connectors: "first," "second," "in addition," "however," "as a result." Between paragraphs, use transitional opening phrases that signal what's coming next.
Good: I purchased the laptop in good faith and expected it to function properly. However, within three days, I noticed serious defects. Consequently, I would like a full refund or a replacement unit.
Weak: I bought the laptop and it was broken. This is a big problem. I want you to give me money back or a new one. I am not happy about this situation.
(No linking. Ideas feel disconnected.)
The good version uses "however" to signal contrast, then "consequently" to show cause and effect. The weak version just stacks statements. One scores Band 7 in Coherence & Cohesion. The other scores Band 5.
If you're struggling with weak topic sentences across your entire Task 1, our guide on letter purpose clarity breaks down how to write opening sentences that examiners actually understand.
Don't let your letter fizzle out. Your final paragraph before the closing should wrap up your main request and open a door to next steps.
Good final paragraph: "I look forward to your response within seven working days. Please contact me by phone or email if you require any further information."
Weak final paragraph: "I hope you will help me with this problem. Thank you."
(Passive. No timeline. No initiative.)
Then your closing phrase. Remember: use "Yours faithfully," if you opened with "Sir or Madam,". Use "Yours sincerely," if you named the person. Then your name (typed or written, both work in an exam).
Tip: Some examiners accept "Best regards," or "Kind regards," in semi-formal contexts. But if you're unsure, stick with "Yours faithfully," or "Yours sincerely,". Those are the safe, correct forms for Band 7.
Both formal and semi-formal letters use the same five-section skeleton. The difference isn't structure. It's tone and who you're addressing.
A formal letter (to a company manager, government office, unknown person) gets "Dear Sir or Madam," and "Yours faithfully,". A semi-formal letter (to someone you know slightly, but not a close friend) gets "Dear Mr. Chen," and "Yours sincerely,". That's the main shift in letter format.
Your paragraph organization stays the same. Opening sentence, 2-3 body paragraphs with one clear idea each, closing paragraph with next steps. The content tone shifts, but the skeleton doesn't bend.
If you're working on Task 1 complaints specifically, our guide on complaint letter structure shows you exactly how to organize complaints without losing formality.
Trap 1: Forgetting the address block entirely. Some students jump straight to "Dear Sir or Madam,". That's incomplete. You lose marks for Task Response because you haven't formatted a proper letter.
Trap 2: Cramming everything into two paragraphs. A short letter still needs structure. Two paragraphs means one covers your problem and the other covers your request. That's thin. Three or four paragraphs spreads your ideas better.
Trap 3: Writing paragraphs with no topic sentences. The examiner reads paragraph two and can't tell what it's about. Is it background? Evidence? A new complaint? Be explicit. Start each paragraph with a sentence that signals its purpose.
Trap 4: Mixing formal and semi-formal tone. You open with "Dear Sir," but then write "I'm really upset about this." That's a Band 6 move. Pick your register and stick to it.
Trap 5: Forgetting the date. This tiny detail costs you points because it breaks the formal letter format. Put it between your address and the recipient's address. Don't skip it.
Let's use a real task prompt: "You have just received a bill for a hotel stay that you believe is incorrect. Write a letter to the hotel manager explaining the error and asking for a correction."
A Band 7 letter structure for this would look like:
Opening: Address block, date, recipient address, salutation.
Paragraph 1: "I am writing to bring an error on my recent invoice to your attention. I stayed at your hotel from 3-5 May 2026 and received a bill of £450, which appears to be incorrect."
Paragraph 2: "According to my booking confirmation, the room rate was £120 per night for two nights, totalling £240. However, your invoice charges £225 per night. I have attached my original booking email as evidence."
Paragraph 3: "In addition, I was charged £35 for breakfast on 3 May, even though breakfast was included in my reservation. This brings the overcharge to approximately £85."
Paragraph 4: "I would appreciate a revised invoice reflecting the correct charges. Please contact me within five business days to confirm receipt of this letter and the documentation."
Closing: "Yours faithfully," followed by your name.
See the rhythm? Each paragraph does one job. The examiner knows what's coming because the structure is clear. That letter organization alone earns you Band 7 points before your vocabulary even matters.
Once you've got your structure down, the next step is making sure your letter ending is strong. Our guide on letter ending mistakes shows you exactly how examiners expect you to close and what weak endings look like.
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