5 Common IELTS Writing Mistakes That Keep You at Band 6

Scoring Band 6.5 or 7 in IELTS Writing is a realistic goal for most intermediate learners — yet thousands of candidates retake the exam two or three times without improving. The problem is rarely a lack of English ability. It's a handful of recurring, fixable mistakes that signal to examiners you haven't mastered the exam format.

Here are the five mistakes we see most often in BandUp practice sessions, along with concrete fixes for each.

Mistake 1: Copying the Prompt Word for Word

The first sentence of many Band 6 essays is an almost verbatim repeat of the question. Examiners are trained to spot this, and the words you lift from the prompt are not counted toward your score.

Why it happens: Candidates feel safe starting with familiar language, especially under time pressure.

The fix: Paraphrase the topic using synonyms and a different grammatical structure. If the prompt says 'Many people believe that technology has made life easier', write something like 'Technological advances are widely seen as having simplified everyday life'. Same idea, different words, and your own vocabulary.

Mistake 2: Having No Clear Position

A Band 7 essay answers the question directly and holds that position throughout. Many Band 6 essays hedge: 'There are both advantages and disadvantages…' followed by five neutral paragraphs that never commit to a view.

Why it happens: Candidates fear being 'wrong', not realising that IELTS is not testing your opinions — it's testing your ability to argue a position coherently.

The fix: Decide your position within 30 seconds of reading the prompt and state it clearly at the end of your introduction. Then make every paragraph support that position. Even for 'discuss both views' questions, your conclusion should express a clear preference.

Mistake 3: Using the Same Connecting Words Repeatedly

Firstly… Secondly… Thirdly… Finally. This mechanical pattern is the single most common Coherence and Cohesion mistake, and it caps your CC score at Band 6.

Why it happens: Test prep books teach these linking words as a formula, and students drill them until they become automatic.

The fix: Use enumeration words (firstly, secondly) sparingly — at most once or twice per essay. Build cohesion through pronoun reference, lexical chains (repeating key topic vocabulary), and a range of discourse markers: 'Furthermore', 'This is particularly evident in', 'A further consideration is', 'Nevertheless'.

Mistake 4: Repeating Vocabulary Instead of Paraphrasing

Lexical Resource (LR) rewards variety and precision. When the same key word appears four times in one paragraph, it signals a limited vocabulary range — even if the word is used correctly.

Why it happens: Candidates know the topic word and feel uncertain about alternatives.

The fix: For each key concept in your essay, prepare at least two synonyms or paraphrases before you start writing. For 'the government', you can use 'authorities', 'policymakers', 'the state'. For 'children', try 'young people', 'minors', 'the younger generation'. This one habit can push your LR score from 6 to 7 immediately.

Mistake 5: Writing Over 300 Words

Longer essays are not rewarded with higher scores. In fact, essays over 300 words often contain more errors — because candidates run out of time to proofread — and weaker ideas, because extra paragraphs dilute the argument.

Why it happens: Candidates believe more is better, or they struggle to stop once they start writing.

The fix: Aim for 260–290 words in Task 2. This gives you enough space to develop two strong body paragraphs while leaving five minutes at the end to check for article errors, subject-verb agreement, and punctuation. Quality over quantity is the examiner's mantra.

How to Fix All Five Mistakes at Once

The fastest way to eliminate these habits is timed practice with immediate, criterion-level feedback. When you can see exactly which criterion pulled your score down after every essay — not two days later — the feedback loop is tight enough to change behaviour.

BandUp's AI evaluator gives you a band score breakdown across all four criteria within seconds of submitting your essay. It flags copied phrases, identifies repeated vocabulary, and highlights where your argument loses clarity. Start a free practice session and see which of these five mistakes is costing you the most.

Summary

• Paraphrase the prompt — never copy it.
• State your position clearly in the introduction.
• Vary your linking words and cohesive devices.
• Use synonyms to avoid repeating key vocabulary.
• Keep your essay between 260–290 words and proofread.

Fix these five, and your next practice score will show the difference.