Most Band 6 letter writers think structure means "write an opening, middle, and closing." That's not structure. That's just... words on a page.
The jump from Band 6 to Band 7 isn't mysterious. It's about knowing exactly where each element belongs, why it belongs there, and making sure the examiner sees you're in control. Your letter structure is your roadmap. Band 7 writers have one. Band 6 writers are winging it.
Here's what you're getting today: the exact structure checklist that separates Band 6 from Band 7, how to audit your own letters, side-by-side examples of weak versus strong formatting, and a practice routine that'll get you those extra marks on your next attempt. If you want instant feedback on whether your letter hits Band 7 standards, try our IELTS writing checker to compare your structure against actual band descriptors.
The IELTS Band Descriptors specifically mention "appropriate register and format." Translation: if your letter looks disorganized or unclear, you lose marks before the examiner even reads your content.
Here's the scoring reality. IELTS Writing Task 1 counts for 33% of your overall writing score. Within that task, Coherence & Cohesion (how organized you are) is weighted heavily. A Band 6 writer might score 6 in Coherence & Cohesion. A Band 7 writer scores 7. That one point difference? It usually comes from letter structure and clarity, not vocabulary or grammar.
You've got 20 minutes for Task 1. That's not enough time to rewrite if your letter structure falls apart halfway through. This is exactly why planning matters. A letter structure checklist forces you to think before you write, not after.
A Band 6 letter has the basics covered. A Band 7 letter has precision in every line.
Look at these two examples:
Band 6: "I want to complain about the product I bought from your store. It broke after one week. I paid 50 pounds for it. This is not good. I want my money back. Please fix this problem soon."
Band 7: "I am writing to lodge a formal complaint regarding the faulty kitchen blender I purchased from your Oxford Street branch on 15th August. The device ceased functioning after seven days of normal use, despite your warranty guarantee. Having invested £50 in this product, I would like to request either a full refund or a replacement unit within 14 days."
See the difference? The Band 7 version gives specifics (Oxford Street, 15th August, £50), uses formal vocabulary (lodge a complaint, ceased functioning, invested), and states the purpose upfront. The Band 6 version rambles and repeats the same frustration three different ways.
Every IELTS General Training letter follows this structure. Not loosely. Exactly.
That's it. Five sections. Every letter. No exceptions.
Real talk: Band 6 writers collapse these sections. They'll smash the opening and body into one paragraph, or they'll forget a proper closing. Your job is to separate them visibly. Use space or even number them in your planning stage so you don't accidentally merge them when you're writing under time pressure.
These errors show up in nearly every Band 6 letter. Fix them and you're halfway to Band 7.
Mistake 1: Buried opening statement. You jump into details before the examiner knows why you're writing. Band 6 writers say, "I received the hotel booking form last week and I had some questions." Band 7 writers say, "I am writing to clarify the payment terms for my conference hotel booking scheduled for 22nd November."
Weak: "I got the form yesterday. There are some things I'm confused about."
Strong: "I am writing regarding the accommodation booking form I received yesterday. I require clarification on three specific points before I can proceed with my reservation."
Mistake 2: Body paragraphs run together. Band 6 writers explain everything in one block. If you're addressing three problems, give each one its own paragraph. Don't write one 8-sentence wall of text.
Mistake 3: Weak or vague closing. A Band 6 letter ends with, "I hope you can help me." A Band 7 letter says, "I would appreciate your response within 10 days and look forward to resolving this matter." Your closing shows you're in control.
Mistake 4: Salutation and sign-off mismatch. This one costs marks immediately. If you write "Dear Sir or Madam," you must sign off with "Yours faithfully." If you know the person's name and write "Dear Mr. Chen," you sign off with "Yours sincerely." Get this wrong and you've shown you don't know formal letter conventions.
Use this every single time you practice. Print it. Memorize it. It takes 90 seconds and catches 80% of structural problems.
Go through this checklist before you submit any practice letter. Seriously. 90 seconds of review work prevents repeated mistakes.
Let's use an actual IELTS prompt and see how structure changes everything.
The prompt: "You went to a restaurant with your family recently. The waiter was rude and ruined the experience. Write to the manager. Explain what happened, describe how it affected you, and suggest how they can improve."
Band 6:
"Dear Sir,
I went to your restaurant last Saturday with my family. We had a table for four people. The waiter was very rude to us. He didn't smile. He spoke quickly. My mother asked for a recommendation and he said nothing. Then he brought the wrong order. We were very upset. I felt bad. My family was angry. The experience was not good. We will not come back. You should train your staff better. Goodbye.
Yours faithfully,
John Smith"
Why this is Band 6:
Band 7:
"Dear Manager,
I am writing to bring to your attention an unsatisfactory experience I encountered during my family's visit to your restaurant on Saturday, 14th August.
Upon arrival, our party of four was seated promptly. However, our assigned waiter demonstrated consistently poor customer service. When my mother politely requested menu recommendations, he responded dismissively without offering suggestions. Subsequently, our appetizers arrived incorrect, and when we brought this to his attention, he appeared irritated rather than apologetic.
This situation left our family feeling disrespected and undervalued as customers. We had anticipated an enjoyable evening but instead felt unwelcome throughout our meal.
I would recommend implementing a staff training program focused on customer service excellence and conflict resolution. Additionally, I suggest introducing a quality check before orders leave the kitchen. Should you address these concerns, we would be willing to give your restaurant another opportunity.
Yours sincerely,
John Smith"
Why this is Band 7:
Notice how the Band 7 letter just feels more confident? That's structure doing the work. The ideas are clearer because they're organized clearly.
You don't need to write 50 full letters to improve. You need to write smart.
Step 1: Plan before you write. Spend 4 minutes outlining. Write your five sections as bullet points: salutation, opening (one sentence), body point 1, body point 2, body point 3, closing (one sentence), sign-off. If this outline feels disorganized, your letter will too.
Step 2: Write to a timer. Set 12 minutes and write the full letter. Don't edit yet. This trains your hands and brain to move fast. Editing comes after you've finished the first draft.
Step 3: Check structure first, grammar second. Grab the checklist from earlier. Go through it. Mark what you did and didn't do. Don't worry about spelling or punctuation yet. Structure first, details later.
Step 4: Count your words. Minimum 150. Maximum about 200-210 before you start padding. If you're under 150, you haven't developed your ideas. If you're over 220, you're rambling.
Do this cycle with 3-4 different IELTS prompts. One hour of focused work. You'll see results. Need real-time feedback? Our IELTS writing correction tool analyzes your structure and compares it to band descriptors instantly.
Pro move: Swap letters with a study partner and check their structure before looking at anything else. This trains your eye to spot structural issues fast, which you'll then catch in your own writing.
IELTS General Training has three letter types. Your structure shifts slightly for each one.
Formal letters (complaints, requests to organizations): "Dear Sir or Madam" or "Dear [Title + Surname]." Opening is one sentence stating your purpose clearly. Body has separate, distinct points. Closing restates your request. Sign-off is "Yours faithfully" or "Yours sincerely."
Semi-formal letters (inquiries to someone you don't know well): "Dear [Name]." Opening is one sentence plus maybe one line of context. Body still has separate points but can sound slightly warmer. Closing can be a bit more conversational. Sign-off is "Yours sincerely" or "Best regards."
Informal letters (to friends, family): "Dear [First Name]" or "Hi [First Name]." Opening can be casual ("Hope you're doing well!"). Body can blend ideas slightly. Closing is personal. Sign-off is "Best wishes," "All the best," or just your first name.
The five-part structure applies to all three. What changes is the tone within each section. This is why Band 6 writers struggle: they often use formal structure for casual letters, or vice versa. Read the prompt carefully. Identify which type it is. Adjust accordingly.
When you're working on identifying formal versus informal letter tone, the structure itself doesn't change—only the language inside each section shifts.
Got some practice letters lying around? Let's check them.
Open one. Don't read the words yet. Just look at the shape on the page. Ask yourself:
Now read it. Ask yourself:
Count how many you fail. Each failure costs you one band point. Fail four and you're Band 6. Fail one and you're Band 7. It's that direct.
Not sure if your letter structure is Band 6 or Band 7? Our IELTS writing checker analyzes your letter against actual band descriptors. Get instant feedback on structure, coherence, and how close you are to your target score.
Try Free IELTS Writing CheckerReady to go beyond structure? Check your overall writing with our IELTS essay checker for Task 2 practice, or use our band score calculator to see where you stand across all four skills.