Here's the thing that catches most band 5 students off guard: your letter closing can actually tank your score, even if everything else is solid. You'll write a perfect complaint letter about a broken flight booking. The tone feels right. The structure hits every mark. Then you sign off with "Thanks so much!" or worse, "See you later!" and lose 2-3 band points on Coherence & Cohesion.
This is where most students mess up. They don't realize that formal letter closings aren't just about saying goodbye. They're about holding the formality you've built throughout the entire letter, showing respect for your reader, and proving you understand the difference between how you text a friend and how you write to a hotel manager or university.
Let me show you exactly which closings push you toward band 6, and which ones keep you stuck at band 5.
The IELTS Writing band descriptors for Task 1 look at two specific areas when they evaluate your letter: Task Response and Coherence & Cohesion. Your closing gets judged under both of these.
Task Response measures whether you've actually done what the prompt asked. A weak closing signals to the examiner that you haven't fully grasped the letter type. If the prompt asks for a formal complaint, and you end with "Cheers!", you've just broken the register. That's a red flag that tells the examiner you don't know the difference between formal and informal writing.
Coherence & Cohesion looks at how logically your ideas flow from start to finish. A professional closing ties your final thoughts back to the letter's purpose. A sloppy one feels rushed and disconnected. The band 6 descriptor specifically mentions that letters should have "appropriate register throughout". Your closing is literally the last thing the examiner reads. Make it count.
Here's what actually separates band 5 from band 6: band 5 closings are either too casual, too vague, or grammatically messy. Band 6 closings feel intentional, formal, and clean.
Let's look at three real IELTS Task 1 scenarios and see how closings differ between weak and strong responses.
The Prompt: You stayed at a hotel and had a poor experience. Write a letter of complaint to the hotel manager.
Weak (Band 5): "I hope you will fix this problem soon because I am not happy about it. Thanks for reading my letter. Hope to hear from you!"
Why this fails: "Thanks for reading my letter" sounds like you're texting a friend, not writing to a business. "Hope to hear from you!" could work in casual emails, but here it feels immature. The whole closing shifts tone from professional complaint to something you'd send casually. Plus, "I am not happy about it" just repeats what you said earlier instead of closing with authority.
Strong (Band 6): "I trust you will address these issues promptly and that I can expect a satisfactory resolution. I look forward to your prompt response. Yours faithfully,"
Why this works: "I trust you will address these issues" is formal and assertive without being rude. "I look forward to your prompt response" signals closure while keeping professionalism intact. "Yours faithfully" is the correct sign-off for formal letters where you don't know the recipient's name. Notice there's no exclamation mark, no casual phrasing, no repetition. Just clean, professional language.
The Prompt: Write a letter to a university requesting information about accommodation options.
Weak (Band 5): "Please send me all the information you have. I am waiting for your email. Thanks! Best,"
Why this fails: "I am waiting for your email" is awkward phrasing that sounds impatient. "Thanks!" with an exclamation mark breaks formality immediately. "Best," isn't a complete sign-off. An examiner reading this will see someone who doesn't know how to close a formal letter professionally.
Strong (Band 6): "I would be grateful if you could provide this information at your earliest convenience. Thank you for your assistance. Yours sincerely,"
Why this works: "I would be grateful if you could" is polite and formal without groveling. "Thank you for your assistance" acknowledges the recipient professionally. "Yours sincerely," is the correct sign-off when you're writing to a named person. No rambling. No confusion. Just clear, intentional language.
The Prompt: Write a letter thanking someone for their hospitality during a recent visit.
Weak (Band 5): "Once again, thanks so much for everything you did. It was really nice to see you. Talk soon! Love,"
Why this fails: "Thanks so much" is too casual. "It was really nice to see you" has weak word choice and reads like a text message. "Talk soon!" is conversational. "Love," as a sign-off doesn't fit a formal letter context, even a thank-you letter. This sounds like you're writing to your friend, not maintaining professional tone.
Strong (Band 6): "Once again, I sincerely appreciate your generosity and kindness. I hope we can see each other again soon. Yours sincerely,"
Why this works: "I sincerely appreciate" is formal and genuine. "I hope we can see each other again soon" keeps warmth while staying professional. "Yours sincerely," is the appropriate formal closing. You've maintained tone throughout without sacrificing the personal touch.
Key pattern: Notice in all the strong examples, the closing reiterates the letter's purpose without copying earlier phrases word-for-word. It also uses sophisticated vocabulary: "grateful", "sincerely appreciate", "prompt response", "earliest convenience". Band 6 closings show range in Lexical Resource, which directly impacts your score.
IELTS Task 1 has specific rules about which sign-offs are acceptable and which aren't. You need to know this cold because examiners expect you to follow formal letter conventions.
Use this when you know the recipient's name. You'll address them as "Dear Mr. Johnson," or "Dear Ms. Ahmed," so you close with "Yours sincerely,". This is the most common sign-off in IELTS Task 1 letters. If you're writing to a named person, this is your safest choice. It's formal, correct, and universally accepted.
Example: You're asked to write to the manager of a gym about a membership issue. The prompt gives you the name "Mr. David Chen". You open with "Dear Mr. Chen," so you close with "Yours sincerely,".
Use this when you don't know the recipient's name and you've opened with "Dear Sir or Madam,". It's slightly more formal than "Yours sincerely,". In modern IELTS writing, examiners accept both interchangeably, but "Yours sincerely," is more common in real-world practice. Still, "Yours faithfully," is technically correct here and won't cost you points.
Example: You're asked to write a complaint letter to a local council about noise pollution. The prompt doesn't give you a specific person's name. You open with "Dear Sir or Madam," and close "Yours faithfully,".
Stay away from these in formal or semi-formal Task 1 letters:
Use any of these and you'll lose marks on Coherence & Cohesion for register inconsistency. That's a direct ticket to staying at band 5.
After you write your closing line, read it out loud. Ask yourself: Would I write this in a professional email to my boss?
If the answer is no, rewrite it.
Band 6 students do this automatically. They've internalized what professional sounds like. Band 5 students skip this step and end up with closings that sound immature next to solid letter bodies.
Here's another quick check: Does your closing sentence contain at least one sophisticated word? Band 6 closings use words like "grateful", "appreciate", "promptly", "resolution", "convenience", "sincerely". Band 5 closings lean on basic words: "thanks", "hope", "soon", "okay".
Pro tip: Your closing sentence (before the sign-off) should be 1-2 sentences maximum. Band 5 students ramble: "I really hope you will respond soon because I need to know soon and it would be great if you could help me soon." Band 6 students are concise: "I look forward to your prompt response." One sentence. Done.
Let me be direct about the patterns examiners see repeatedly in band 5 letters.
Band 5 students often use the closing as a second chance to restate their main complaint or request. This feels desperate and unfocused.
Weak: "As I mentioned, I am very disappointed about the service, and I hope you will fix the problem with the service because the service was really bad and I need better service. Please help me with the service. Thanks."
This repeats "service" five times. The closing doesn't close anything. It just recycles complaints. Your letter should feel finished and decisive, not like you're asking permission to leave.
Band 5 students sometimes write "I look forward to hearing from you!" The exclamation mark makes a formal statement sound juvenile. In formal writing, a period is always correct. Exclamation marks are rare in professional correspondence.
Some band 5 students end with "Thank you for your time" and then forget to add the actual sign-off ("Yours sincerely,"). The letter just stops. This looks incomplete and costs you points under Task Response. Always include both a closing sentence AND a sign-off line.
You can't write "Dear Mr. Thompson," and then close with "Yours faithfully,". You also can't open "Dear Sir or Madam," and close "Yours sincerely,". The pairing has to match.
Band 6 students never make this mistake. Examiners notice immediately when the pairing is wrong.
The paragraph before your sign-off matters as much as the sign-off itself. Here's what band 6 students consistently do.
The formula: One sentence about what you expect to happen next, plus one sentence that's either courteous or assertive, then the sign-off.
Strong example: "I would appreciate it if you could provide a full refund within 14 days. I look forward to resolving this matter swiftly. Yours sincerely, [Your name]"
Notice: The first sentence is active. The second sentence looks forward. The sign-off is clean. Total closing paragraph: two sentences plus sign-off. Done. Band 6 students don't add extra fluff.
Band 5 students often write four or five sentences before the sign-off, which makes the letter feel prolonged and uncertain. Tighten it up.
If you've already written some Task 1 letters, pull one up and evaluate your closing against this checklist.
If you scored 4-5: You're hitting band 6 closings. Keep this standard consistent in every letter you write.
If you scored 2-3: You're in band 5 territory. Focus on vocabulary and conciseness in your next practice letter. That's where the quick gains are.
If you scored 0-1: Your closings need a complete rewrite. Start by taking one of the strong examples from this post and adapting it for your next practice letter.
Targeted practice works: This week, write 5-10 practice Task 1 letters and focus only on getting the closing right. Ignore the body paragraphs. Just nail the final paragraph and sign-off. This kind of focused practice beats rewriting entire letters.
Your closing doesn't exist in a vacuum. It works with your opening. When you master how to write a strong opening line, you create momentum that your closing needs to sustain. A weak opening paired with a strong closing still feels disjointed. Both have to work together.
The same applies to tone. When you're working on evaluating your letter's tone throughout, your closing is the final checkpoint. If your tone shifts there, you lose coherence points.
If you're struggling with formal letters specifically, understanding how to balance politeness with directness in requests will help your entire closing feel more confident and appropriate.
Submit your Task 1 letter and get instant feedback on your closing, formality, and band score. Our IELTS writing checker catches the exact mistakes that keep you at band 5.
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