IELTS Writing Task 1: Chart & Letter Structure

Task 1 question types

Task 1 gives you a visual — a bar/line/pie chart, a table, a map or a process diagram — and asks you to describe it in 150+ words. Unlike Task 2 essays, Task 1 is purely factual: you summarise key features, highlight trends and compare data without opinion. The key is accuracy and organisation.

The winning structure for charts

Introduction (paraphrase the visual + overview of main trend), Body (2–3 paragraphs describing key data, comparisons and patterns), Conclusion (recap the main takeaway). Use the overview paragraph to signal what you will describe in the body — examiners reward this 'roadmap'.

Vocabulary and language for Task 1

Use present simple and passive voice (the highest point is reached, there was a rise in). Master trend verbs: increase, decrease, fluctuate, plateau, peak, plummet. Use comparison language: whereas, in contrast, compared to. Avoid repetition by using synonyms. Precision matters more than complexity.

Common traps and how to avoid them

Do not add opinion or interpretation beyond what the data shows. Do not repeat the same figures. Do not use the same sentence structure repeatedly — vary your syntax. On length: 150 words is a MINIMUM, not a target, and there is no upper limit and no penalty for exceeding one — the widely repeated claim that examiners deduct marks for long answers is simply false. What long answers actually cost you is accuracy and time, since every extra sentence is another chance to make an error and Task 2 is worth twice as much. Aim for roughly 160–190 words because that is enough to cover the features properly and still leave Task 2 its 40 minutes, not because a longer answer is punished.

What the overview paragraph is really for

The overview is the single highest-value paragraph in Task 1 and the one most often missing. Task Achievement explicitly requires you to select and report the main features, and an answer that lists every number without ever saying what the data does as a whole is capped no matter how accurate the figures are. Write it as two sentences with no numbers at all: the overall direction or the biggest contrast, and the most striking exception. Numbers belong in the body paragraphs, where you are proving what the overview claimed. A useful test: if someone read only your overview, would they know the story of the chart? If not, you have written an introduction twice.

Choosing what to leave out

Most candidates lose marks by including too much rather than too little. A chart with twelve data points does not need twelve sentences; it needs the highest, the lowest, the crossover, the anomaly and the trend they belong to. Selecting is part of what is being assessed — 'select and report the main features' means the examiner is judging your choices, not just your accuracy. Before writing, mark the three or four features you would mention if you had to describe the chart out loud in twenty seconds, and build the body around those. Everything else is supporting detail or should be dropped.

Letters in General Training Task 1

General Training candidates write a letter instead, and the criteria differ in one decisive way: tone. The prompt tells you who the recipient is, and that dictates register — formal for an unknown official, semi-formal for a known colleague, informal for a friend. Mixing registers is the most common cause of a capped band here: 'Dear Sir or Madam' followed by contractions and chatty phrasing reads as a candidate who has not understood the task. Cover all three bullet points, give each its own paragraph, and use a sign-off that matches the greeting — 'Yours faithfully' with 'Dear Sir or Madam', 'Yours sincerely' when you named the person.

Letter vs Report (Academic vs General)

Academic Task 1 is always a visual; General uses formal letters or semi-formal emails instead. For letters, follow a clear structure: address the recipient, state your purpose, explain your points, and close politely. Formal letters need appropriate greetings and sign-offs.

Band 7 and 8 checklist

Accurate task response (all data covered, within word count), clear organisation (logical flow, linked paragraphs), sophisticated vocabulary (synonyms, precise phrases), grammatically accurate (varied structures, correct tenses). Use the free Writing Checker to refine your responses.

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