Most Band 6 students think format doesn't matter. They're half right. Format alone won't push you to Band 7, but sloppy formatting will absolutely tank your score. You'll lose points in Task Response before the examiner even reads your opening paragraph.
The gap between Band 6 and Band 7 in IELTS General Training Writing Task 1 is tiny. We're talking 2-3 mistakes across the entire letter. Both bands are marked on the same criteria: Task Response, Coherence & Cohesion, Lexical Resource, and Grammatical Range & Accuracy. But Band 7 letters feel different. Professional. Like you've written a hundred formal letters.
Let me show you exactly what separates those two bands, with real examples you can learn from.
Here's the reality: your examiner spends roughly 90 seconds skimming your letter before marking starts. In that time, they're checking three things: Does this look like an actual letter? Is it organized clearly? Does it answer the prompt? Fail on format, and you've already lost coherence points.
Band 6 examiners expect the basics. You include an opening, body sections, and a closing. You use linking phrases. You write in a reasonably formal tone. But you miss the details. A missing comma. An inconsistent salutation. A paragraph that rambles on.
Band 7 demands tighter control. Every line serves a purpose. Every punctuation mark is intentional. Your letter doesn't just meet the requirements—it looks like you anticipated them. When you use an IELTS writing checker, this is exactly what gets flagged: the difference between meeting expectations and exceeding them.
IELTS General Training letters follow this shape: address block, date, salutation, opening paragraph, body paragraphs, closing paragraph, sign-off. None of this is optional. This structure counts directly toward your Coherence & Cohesion score.
Let's work with a real IELTS prompt:
You have recently moved to a new flat and would like to inform your landlord about some repairs needed. Write a letter to your landlord. In your letter, explain what repairs are needed, describe how these repairs affect your daily life, and propose a timeframe for the repairs.
Here's what Band 7 actually looks like:
Good (Band 7):
Flat 12, Riverside Building
Manchester
M15 4SZ
15 September 2026
Dear Mr. Patterson,
I am writing to inform you of several maintenance issues in my flat that require your attention. As per our rental agreement, I wanted to bring these matters to your notice as soon as possible.
[Body paragraphs follow here]
I would appreciate it if you could arrange repairs at your earliest convenience. Please let me know your availability for an inspection.
Yours sincerely,
Jane Mitchell
Notice the details: proper address format, clear date, formal salutation with a colon (British style), an opening that states exactly why you're writing, organized body paragraphs, a closing that requests action, and a formal sign-off. Band 7 students don't skip any of these steps.
This is where the separation happens. You write "Hi John," when you don't know the person. Wrong. You write "Yours truly," when the exam expects "Yours sincerely,". Wrong. You use "Best regards," in a formal complaint. Wrong.
Here are the actual rules for formal letter punctuation:
Weak (Band 6): "Hi, I'm writing about the damaged kitchen window..."
Good (Band 7): "Dear Mr. Patterson, I am writing to inform you of a damaged kitchen window that requires urgent repair."
One reads like a text. The other reads like a letter. That's your Band 6 to Band 7 jump right there.
Pro tip: The IELTS band descriptors specifically assess "appropriate register"—meaning formal vs. informal tone. Your salutation sets the register for the entire letter. Get it wrong here, and you've already signaled Band 6 to the examiner. Check our detailed guide on formal letter salutations for more patterns.
Band 6 students write correct sentences. Band 7 students write sentences with intentional punctuation that shows control. These five mistakes show up constantly in general training letter structure and cost you points:
Weak (Band 6): "The kitchen tap is broken, it leaks constantly and wastes water every day, I need this fixed urgently."
Good (Band 7): "The kitchen tap is broken and leaks constantly. This wastes approximately 20 litres of water daily, which is both expensive and environmentally irresponsible. I would be grateful if you could arrange a repair within the week."
The Band 7 version splits that comma splice. It adds specificity (20 litres). It replaces "need" with "would be grateful," which is more formal. These small moves compound your score. For deeper guidance, our free IELTS essay checker highlights exactly these kinds of issues so you can learn the pattern.
Your opening paragraph has one job: state why you're writing. That's it. Not background. Not your life story. Just purpose.
Band 7 opening paragraphs are 2-3 sentences. Clear, simple language.
Weak (Band 6): "I hope this letter finds you well. I am writing because I have recently moved into my new flat and there are some things that need to be done. I would like to tell you about them."
Good (Band 7): "I am writing to inform you of several maintenance issues in my new flat that require your prompt attention."
The Band 7 version cuts the filler. No "I hope this letter finds you well"—that phrase appears in 80% of Band 6 letters, and examiners are tired of it. Skip it entirely.
Your closing paragraph wraps up and suggests next steps. Don't introduce new information here. Just finish the conversation.
Weak (Band 6): "I hope you can fix these problems soon because I really need them done. Please call me or send me an email. I am available most days. Thank you for reading my letter."
Good (Band 7): "I would appreciate it if you could arrange these repairs at your earliest convenience. Please let me know your availability for an inspection by 22 September."
The Band 7 closing is specific (gives a date), polite ("would appreciate"), and actionable. You're telling them what comes next, not thanking them for reading.
Most IELTS letters need 2-3 body paragraphs. One idea per paragraph. This is where format directly affects your Coherence & Cohesion score.
Band 7 students use topic sentences. Every paragraph opens with a clear statement of what's coming.
Let's say the prompt asks you to complain about a faulty appliance:
Paragraph 1 (What's wrong): "The washing machine I purchased from your store three weeks ago has developed a serious fault. The drum no longer rotates properly, meaning clothes are not cleaned effectively."
Paragraph 2 (How it affects me): "This malfunction has caused considerable inconvenience. I am unable to wash my uniforms for work, and I have had to use a laundromat at additional cost."
Paragraph 3 (What I want): "I would like either a full refund or a replacement unit. I believe this is a reasonable request given the appliance's age and the clear manufacturing defect."
Each paragraph has a clear purpose. This structure shows the examiner you can organize a longer piece of writing logically. It's not just about format—it's proof of your Coherence & Cohesion control.
Quick tip: Use linking words between paragraphs, but sparingly. Band 6 students overwrite connectors. Band 7 students let clear topic sentences do the work. The connection becomes obvious because your ideas flow logically.
You've got about 20 minutes for Task 1. You can't waste time fixing format errors in the final minute. These five errors in general training letter structure separate Band 6 from Band 7:
Each mistake seems small. But the examiner sees them as evidence you don't understand formal letter conventions. That's a Band 6 signal.
The IELTS band descriptors mention "register" specifically. Register is your formality level. Pick the wrong one, and you lose points.
Most Task 1 letters are formal or semi-formal. You're writing to someone in authority or a stranger. Your tone needs to match that.
Weak (Band 6 - too casual): "Hi Sarah, I'm really annoyed about the broken heater in my flat. It's freezing and I can't sleep properly. Can you send someone to fix it ASAP? Thanks, John."
Good (Band 7 - formal): "Dear Sarah, I am writing to report a faulty heating system in my flat. The boiler has stopped functioning, leaving the property without adequate warmth. I would appreciate it if you could arrange for a qualified technician to inspect and repair the system at your earliest convenience."
The Band 7 version replaces "really annoyed" with "faulty". Changes "freezing" to "without adequate warmth". Replaces "ASAP" with "at your earliest convenience". These aren't fancy words for fancy's sake. They're the correct register for a formal letter.
Use this test: would you say it to your boss at work? If not, don't write it in an IELTS letter.
You should always review your work before submitting it. A good format checker catches small errors that cost points, but it won't rewrite your letter, and that's the point. You need to do that thinking.
When you use an IELTS writing checker, focus on these specific items:
A good tool flags whether you've answered all parts of the prompt. It highlights inconsistencies. It points out register issues. But you still need to think critically. Does this phrase sound natural? Is this sentence saying what I mean? A tool suggests answers. Only you can decide.
Pro tip: Check your letter after you've written the whole thing. Don't check as you go. You'll lose momentum and second-guess yourself constantly. Write, then check, then edit. That order matters.
Use our free IELTS writing correction tool to analyze your letter format, grammar, tone, and band score potential. Get line-by-line feedback on Task Response, Coherence & Cohesion, Lexical Resource, and Grammatical Range & Accuracy.
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