Here's what most students don't realize: you can lose up to 2 bands on IELTS Writing Task 1 for formatting alone, even if your grammar and vocabulary are solid. The examiners have a checklist. They're looking at layout, punctuation, salutation, and closing structure before they even read your content. This is where most students mess up.
You've probably been told "just write a letter." That's not enough. Band 7 writers don't just write letters. They format them strategically, consistently, and with purpose. This guide shows you exactly what separates Band 5 formatting from Band 7, with real examples you can copy and adapt right now.
The IELTS band descriptors for Writing Task 1 don't explicitly say "deduct points for messy formatting," but they do assess "Task Response," which includes addressing the prompt appropriately. A formal business letter demands formal layout. An informal letter to a friend needs a casual, personal touch. If you get that tone wrong on the page, you've already lost Task Response marks.
Think about it this way. If you walked into a real office and submitted a formal complaint letter with no date, no proper greeting, and text bunched together like a text message, would anyone take it seriously? The examiner won't either.
Band 5 writers focus on what they're saying. Band 7 writers focus on how it looks, sounds, and flows. That includes format. An IELTS writing correction starts with layout, not content.
Band 5 letters have inconsistent spacing, mismatched salutations and closings, and missing dates. Band 7 letters follow all five structural rules, use proper British English conventions, and maintain consistent punctuation throughout. The difference is immediate and visible to any examiner reading your work.
Master these five elements and your letter structure hits Band 6 minimum. Execute them flawlessly and you're in Band 7 territory.
Stop overthinking this. There are only five structural elements that separate Band 5 from Band 7 letter formatting.
IELTS Task 1 gives you one of two scenarios. Know the formatting difference or you'll sound like you're writing to your boss in your friend's voice, and vice versa.
Good (Band 7 Format):
42 Elm Street
London, UK SW1A 1AA
13 August 2026
The Manager
Customer Service Department
Riverside Hotel
Bristol, UK BS1 5TR
Dear Sir or Madam,
I am writing to lodge a formal complaint regarding my stay at your hotel last month. The room was significantly smaller than advertised online, and the air conditioning malfunctioned for two days without compensation.
I would appreciate a full refund or substantial discount on a future booking.
Yours faithfully,
James Mitchell
Notice the spacing. Line break after each address block. Formal greeting for someone you don't know. Closing matches opening. Your name sits below the sign-off (no handwritten signature in digital IELTS).
Good (Band 7 Format):
23 Oak Lane
Manchester
13 August 2026
Hi Emma,
I hope you're doing well. I wanted to tell you about this amazing bakery I found near my flat. You'd absolutely love their sourdough. We should meet up there next week if you're free?
Let me know what works for you.
Cheers,
Sophie
See the difference? Informal letters skip the recipient's full address and use a casual closing. The tone matches the format from line one.
You've probably made at least one of these. Most students have.
Weak (Band 5):
Dear Sir or Madam,
[letter body]
Best regards,
Your Name
This isn't technically wrong, but it's inconsistent. You opened formally but closed casually. Band 7 writers match tone throughout.
Good (Band 7):
Dear Sir or Madam,
[letter body]
Yours faithfully,
Your Name
Weak (Band 5):
42 Elm Street
13 August 2026
Dear Sir or Madam,
I am writing to complain...
This reads like a text message, not a letter. Examiners associate spacing with professionalism and structure.
Good (Band 7):
42 Elm Street
London, UK
13 August 2026
Dear Sir or Madam,
I am writing to complain...
Weak (Band 5):
Dear Sir or Madam:
That's American business style. IELTS uses British English. Comma after the salutation, not a colon.
Good (Band 7):
Dear Sir or Madam,
You'd be shocked how many students skip this. The date anchors your letter in reality and shows you understand formal structure. Always include it. This mistake alone can cost you a band.
Weak (Band 5):
42 Elm Street,
London, UK
SW1A 1AA.
Mixing periods and commas looks sloppy. Pick one style and stick with it.
Good (Band 7):
42 Elm Street
London
UK SW1A 1AA
IELTS doesn't always ask for the same letter. Here's how formatting shifts based on what you're asked to write.
Always formal. Use full addresses, "Dear Sir or Madam" if you don't know the person's name, and "Yours faithfully." Your job is to sound professional and serious. When working on the tone, check our guide on complaint letters to nail the right balance between assertive and polite.
Still formal if it's professional (like your landlord or a university administrator). Use "Dear Ms. Chen," not "Hi Maria." Match with "Yours sincerely," not "Cheers."
Informal rules apply. Skip the full addresses, use first names, and close with casual sign-offs like "All the best," "Take care," or "Lots of love." You can leave out the sender's address entirely and just use the date.
Quick tip: Read the prompt sentence by sentence. It tells you who you're writing to. If it says "write to a friend," go informal. If it says "write to a hotel manager," go formal. Don't guess.
Before you submit, run through this in 30 seconds. It's what separates Band 5 from Band 7.
That's eight checks. Do all eight, and your formatting is Band 7.
Prompt: You recently stayed at a hotel and had a poor experience. Write a letter to the hotel manager complaining about the service and requesting compensation.
Band 7 Response:
18 Forest Road
Edinburgh
Scotland EH8 5PS
13 August 2026
The Manager
Grand Plaza Hotel
52 Princes Street
Edinburgh
Scotland EH2 2YJ
Dear Sir or Madam,
I am writing to lodge a formal complaint regarding my stay at your hotel from 5 to 7 August 2026. Unfortunately, my experience was severely compromised by multiple service failures.
Upon arrival, I discovered that my room had not been properly cleaned and contained bedding from the previous guest. Additionally, the promised Wi-Fi service did not function throughout my stay, which was particularly problematic as I needed it for work. When I contacted the front desk on the second day, the staff member was dismissive and unhelpful.
Given these significant failures to meet basic service standards, I believe a full refund is appropriate. At minimum, I expect a substantial discount on my bill and a written explanation of how you plan to prevent such issues in future.
I await your prompt response.
Yours faithfully,
Robert Chen
Why this hits Band 7 formatting: Proper spacing throughout. Formal salutation and closing that match. Recipient's address included. Date formatted correctly. Structured paragraphs. Professional tone reflected in layout. Everything the examiner expects to see.
Formatting isn't something you learn once and forget. You need to build it into your writing routine.
Start here: write one formal letter and one informal letter this week. Don't focus on content. Just get the layout right. Use the checklist above. Do this three times and the format becomes automatic.
When you're ready to test yourself, try using an IELTS writing checker to get instant feedback on your letter structure and formatting before test day. It catches spacing issues, inconsistent punctuation, and greeting mistakes you might miss on your own.
If you want to push deeper into letter writing, our guide on politeness and tone in request letters walks you through how to adjust your voice while keeping your formatting sharp. That's where Band 5 writers bump up to Band 6. You can also explore our band score guides to understand what each band level expects across all Writing Task 1 letter types.
Use a free IELTS writing checker to get instant feedback on your letter structure, spacing, punctuation, and overall formatting. See exactly where you stand and what to fix before test day.
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