Common IELTS Writing Mistakes

Start with the mistakes that cost the most

Many learners check only spelling and grammar because these errors are easy to circle. IELTS Writing is broader. Each task is assessed under four equally weighted criteria: Task Achievement for Task 1 or Task Response for Task 2, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy. Task 2 also carries more weight in the overall Writing score than Task 1.

This means an essay with mostly accurate sentences can still be weak if it answers only half the question. A report can contain impressive vocabulary yet fail to present a clear overview. A letter can be grammatically polished but use an unsuitable tone. Editing must therefore begin with meaning and task coverage, then move through organisation and language.

The mistakes below are grouped by their real cause. For each one, you will see a weak version, a corrected version and a practical repair. Do not try to fix all of them in one sitting. Identify the two patterns that appear most often in your own work and practise those deliberately.

Mistake 1: answering the topic but not the instruction

A Task 2 prompt contains a topic, a statement or situation, and an instruction. Writers sometimes recognise the topic and produce everything they know about it without doing the required thinking. If the question asks whether advantages outweigh disadvantages, merely listing both sides does not make the required judgement. If it asks two questions, both need answers.

Repair: Circle the instruction verbs and number the required parts before planning. Write a one-sentence answer beside each number. Check plurals and paired groups. A prompt about effects on “individuals and society” requires attention to both.

Mistake 2: hiding the position

In Task 2, the reader should be able to understand your position. Some writers delay it until the conclusion, change it halfway through, or use a vague thesis such as “This issue has advantages and disadvantages.” That sentence announces a topic but does not answer the question.

The corrected version gives a degree of agreement and a meaningful limit. The body paragraphs can now develop the access argument and explain why universal full funding is not the best policy. Your conclusion should confirm the same position after the reasoning, not introduce a new compromise.

Mistake 3: presenting ideas without developing them

A relevant claim is only the beginning of a paragraph. Development shows why it is true, how the effect happens, who is affected, or under what conditions it applies. Learners often mistake an example for explanation, or write three similar claims that create length without depth.

Repair: After every main claim, ask “why?” or “how?” Add the answer before adding another idea. Use an example only when it illustrates the mechanism clearly. Official IELTS guidance advises examples from your knowledge or experience; invented research and precise fake statistics are unnecessary.

Mistake 4: missing the overview in Academic Task 1

An Academic Task 1 response needs a summary of the main features. Some writers paraphrase the task and immediately list figures. The result may be accurate in detail but lacks the broad picture. A useful overview identifies the dominant trend, major contrast, most important change, or overall sequence.

Repair: Before writing details, list three observations that summarise the whole visual. Do not place every number in the overview. Put exact figures in detail paragraphs where they can support grouped comparisons. For a process, state the beginning, end and major stages; for maps, summarise the most significant changes.

Mistake 5: using the wrong letter tone

General Training Task 1 requires a tone that suits the reader and purpose. A letter to a friend should not sound like a legal notice, while a complaint to an unknown manager should not sound aggressive or overly casual. Tone also needs to remain consistent.

Repair: Write the relationship at the top of your plan: friend, known colleague, or unknown official. Choose the greeting, directness, contractions and sign-off accordingly. Address every bullet point and extend each with relevant detail.

Mistake 6: organising by sentence count instead of purpose

A paragraph is not simply a block of four or five sentences. It should develop one central topic. Writers sometimes put a new major idea at the end of a paragraph, split one idea across several tiny paragraphs, or create a one-sentence paragraph for every connector.

The corrected paragraph has a central claim, a condition and a consequence. The sentences progress rather than jump between transport, cycling and health. Make a five-word label for each paragraph during planning. If two labels are needed, consider whether you have mixed ideas.

Mistake 7: adding linking words mechanically

Coherence is the logical organisation of ideas; cohesion includes the language that expresses relationships between them. Inserting “moreover,” “however” and “therefore” into unrelated sentences does not create logic. Overuse can make writing sound mechanical and may obscure the real connection.

Repair: Name the relationship before choosing a connector: cause, result, contrast, example, addition, sequence or reference. Often a pronoun, repeated key term or well-ordered sentence is more natural than an obvious transition phrase.

Mistake 8: forcing “advanced” vocabulary

Lexical Resource rewards range, accuracy, appropriacy and precision. Replacing every common word with a rare synonym increases the risk of wrong meaning, collocation or tone. Memorised phrases can also sound disconnected from the task.

The second sentence is stronger because the policy and intended result are specific. “Reliable,” “road-pricing measures” and “congestion” fit the topic naturally. The goal is not to make every word difficult; it is to express the exact meaning efficiently.

Repair: Learn vocabulary in phrases and sentences, including its usual partners and register. During editing, challenge vague words such as “things,” “good,” “bad” and “big,” but keep a simple word when it is already the best choice. Check word form as well: “benefit,” “beneficial” and “benefit from” do different grammatical jobs.

Mistake 9: writing long sentences without control

Complex grammar is useful when it expresses relationships such as cause, contrast and condition. Complexity is not measured by sentence length. A sentence joined repeatedly with commas and “and” can make the reader work too hard to identify the main clause.

The corrected sentence uses a dependent clause to acknowledge the benefit, then a main clause to limit the conclusion. It is complex because the reasoning is complex, not because extra words were added.

Repair: Underline the subject and finite verb in every clause of your longest sentences. Check where each sentence ends. If you cannot explain the relationship in one word, split it. Accurate simple sentences remain valuable and can improve emphasis.

Mistake 10: repeating systematic grammar errors

Errors in articles, subject–verb agreement, verb tense, plurals and sentence boundaries are common. The important questions are how often they occur and whether they make communication difficult. A repeated article problem throughout the response is more serious than one accidental omission.

Repair: Keep an error log with your original sentence, correction, rule and a new example. Group errors by pattern, not by essay topic. Practise one pattern in short sentences until accuracy is stable, then use it in paragraphs.

Mistake 11: ignoring minimum length and time balance

Task 1 requires at least 150 words and Task 2 at least 250 words. Writing below the minimum prevents full task fulfilment. Writing far beyond it can also be a poor strategy if the extra material is repetitive or leaves no time to complete Task 2 and proofread. IELTS recommends roughly 20 minutes for Task 1 and 40 minutes for Task 2, reflecting Task 2’s greater contribution.

Repair: Learn the approximate number of words in your normal handwriting or on-screen paragraphs. Aim for a complete, developed response rather than an extreme word count. Reserve a few minutes to verify task coverage and correct high-frequency errors.

Mistake 12: proofreading without priorities

Reading the entire response repeatedly for “mistakes” is slow and unreliable. Use separate passes. First, check that every task part is answered and the position or overview is visible. Second, inspect paragraph purpose and progression. Third, search for your personal error patterns. Finally, check sentence endings, spelling and missing words.

1. Instruction audit.

   Take three prompts and write only the required parts. Compare your list with each plural, “and,” and instruction verb.

2. Position test.

   Give your introduction to a partner without the question. Can they state your exact judgement?

3. Development test.

   Highlight claims in one colour and explanations in another. Rewrite any paragraph dominated by the first colour.

4. Overview test.

   Describe a chart in one sentence without numbers. Check whether it communicates the dominant pattern.

5. Connector test.

   Remove linking words from a paragraph. Restore only those needed to clarify a real relationship.

6. Error-pattern test.

   Count your three most common grammar errors across two responses and practise the most frequent one first.

Your final five-minute check