IELTS Writing Mistakes: 15 Errors That Drop Your Band Score (2026)

After reviewing thousands of IELTS Writing Task 2 essays, the same mistakes appear again and again across every band level. These are not random errors — they are systematic habits that candidates have picked up and never corrected because they never received specific enough feedback. Our free AI IELTS tool flags these exact issues with every submission. Here are the 15 most common — and exactly how to fix each one.

The 15 Writing Mistakes That Drop Your Band Score

Mistake 1: Copying the Question Word-for-Word in the Introduction

This is the single most penalised lexical error. Examiners see it immediately and it directly reduces your Lexical Resource score.

❌ Do Not Write	✅ Write Instead
The question says: “Many people believe that universities should be free for all students.” Your intro: “Many people believe that universities should be free for all students”	“The question of whether tertiary education should be provided at no cost to students is a matter of significant debate.”

Mistake 2: Not Stating a Clear Opinion

For opinion essays, vague positions like “There are advantages and disadvantages to this view” directly cap Task Achievement at Band 5. State your position unambiguously in the introduction and maintain it throughout.

Mistake 3: Only One Long Body Paragraph

One single block of text for the entire body destroys your Coherence & Cohesion score. Examiners require clear paragraph divisions with distinct central ideas. Minimum: two separate body paragraphs.

Mistake 4: Using the Same Linking Words Repeatedly

Overused	Band 7+ Alternatives
Firstly, secondly, finally	To begin with / Furthermore / In addition / On the other hand / Consequently
However	Nevertheless / That said / Conversely / Despite this
Because	Given that / Owing to / This is largely due to / As a consequence of
For example	To illustrate / A case in point is / This is evidenced by / Take the case of

Mistake 5: Writing Under 250 Words

An automatic Task Achievement penalty. There is no examiner discretion — if your response is under 250 words, you cannot score Band 6 or above for Task Achievement. Always count your words before submitting.

Mistake 6: Introducing New Ideas in the Conclusion

Your conclusion must ONLY restate your position and summarise the key points already made. A new argument in the conclusion confuses the examiner and signals poor planning — you ran out of things to say in the body and thought of something new.

Mistake 7: Misidentifying the Question Type

Writing a discussion essay for an opinion question (or vice versa) is an immediate Task Achievement problem. Always spend the first 30 seconds confirming the essay type before you write a single word. See our essay types guide for the complete identification system.

Mistake 8: Informal Language in a Formal Essay

❌ Informal	✅ Formal
I think it’s a really good idea	I would argue that this represents a sound approach
Loads of people nowadays…	A significant proportion of the population currently…
It’s kind of obvious that…	It is widely acknowledged that…
And another thing is…	Furthermore / In addition / A further consideration is…

Mistake 9: Spending More Than 40 Minutes on Task 2

Task 2 is worth double Task 1. If you spend 30 minutes on Task 1, you leave only 30 minutes for Task 2 — which costs significantly more marks. Strict time allocation: 20 minutes for Task 1, 40 minutes for Task 2.

Mistake 10: Unsupported Claims

Every claim in a Band 7+ essay has evidence. Not peer-reviewed research — a plausible real-world example or logical extension.

❌ Unsupported	✅ Supported
Technology causes unemployment.	Automation in manufacturing — evident in industries such as automotive assembly, where robotics have displaced millions of low-skilled workers over the past two decades — demonstrates that technological advancement can fundamentally reshape labour markets.
Education is very important.	Access to quality education remains the most reliable predictor of long-term economic mobility, as evidenced by the persistent correlation between educational attainment and lifetime earnings across virtually every economy studied.

Mistake 11: Weak or Missing Overview in Task 1

The overview is not optional in Academic Task 1 — its absence caps Task Achievement at Band 5 regardless of description quality. The overview must identify the most significant trend WITHOUT specific figures.

Mistake 12: Repetitive Vocabulary

Using the same noun (e.g., “government”) or verb (e.g., “increase”) more than twice in an essay signals limited Lexical Resource. Keep a mental tally — if you have used a word twice, find an alternative for the third use.

Mistake 13: Grammar Errors in Complex Sentences Only

A common Band 6 profile: simple sentences are error-free, but every complex sentence contains a mistake. Examiners notice this pattern. Practise writing 3–4 complex structures per essay and check each one carefully.

Mistake 14: No Paragraph Topic Sentences

Each body paragraph must begin with a topic sentence that clearly signals the main point. Without it, the examiner must read the whole paragraph to understand its purpose — this directly reduces Coherence & Cohesion.

Mistake 15: Not Proofreading the Final 3 Minutes

Leave 3 minutes at the end of Task 2 to read the essay back. Most candidates catch 2–4 errors they can fix in this time — grammar mistakes, spelling errors, missing words. These are easy marks lost for no reason.

Frequently Asked Questions

Which of these mistakes is the most damaging?

Copying the question, writing under 250 words, and misidentifying the essay type are the three most immediately damaging — each can drop your Task Achievement score by 1–2 full bands. Addressing these three first will have the most rapid impact on your score.

How quickly can I fix these mistakes?

Most candidates can eliminate 8–10 of these mistakes within 2–3 weeks of deliberate practice with specific feedback. The remaining 5 (mainly vocabulary range and complex grammar accuracy) require 4–8 weeks of sustained practice to fully internalise.