IELTS Writing Task 1 Pie Chart: Structure, Language and Model Answer

In this guide

1. 1What Is the IELTS Writing Task 1 Pie Chart Task?
2. 2A Sample IELTS Writing Task 1 Pie Chart Question
3. 3How to Plan and Structure Your Pie Chart Report
4. 4Useful Language for Describing Pie Charts
5. 5A High-Scoring Model Answer
6. 6Why the Model Answer Works
7. 7Common Mistakes That Lower the Band
8. 8How to Practise and Key Takeaways

Pie charts are a common visual in IELTS Academic Writing Task 1, and knowing how to tackle them confidently can make a real difference to your score. In this guide, you will find everything you need to write a clear, well-organised IELTS Writing Task 1 pie chart report: what the task expects, a sample question, a step-by-step planning method, useful language, a full model answer, and an explanation of why that answer works. You will also learn about the most frequent mistakes and how to avoid them.

What Is the IELTS Writing Task 1 Pie Chart Task?

The IELTS Writing test lasts 60 minutes and contains two tasks. Task 1 in the Academic module asks you to write a factual report of at least 150 words based on visual information, and you should spend about 20 minutes on it. Task 2 is a 250-word essay that you should spend about 40 minutes on; it counts twice as much as Task 1, so managing your time well is essential. Writing fewer than 150 words for Task 1 will lose you marks under Task Achievement.

A pie chart question falls under Academic Task 1 only. Pie charts illustrate proportions of a whole, and you will often see two or three pies side by side. The extra pies let you compare data across different times (e.g., years) or different groups (e.g., age groups or countries). Your job is to select and report the main features, not to list every detail, and you must never include personal opinions or reasons that are not shown in the data.

The examiner assesses your report against four criteria, each worth 25% of your Task 1 score:

• Task Achievement: how well you summarise the key features and present a clear overview.
• Coherence and Cohesion: how logically your ideas flow and how well you use paragraphing and linking.
• Lexical Resource: the range and accuracy of your vocabulary, especially your ability to describe proportions and comparisons.
• Grammatical Range and Accuracy: your use of a variety of sentence structures with few errors.

An overview paragraph that identifies the most significant trends or differences is essential. Without one, your Task Achievement band will be limited, no matter how good the rest of your report is.

A Sample IELTS Writing Task 1 Pie Chart Question

Below is a typical question. The data is presented as a table so you can see the figures clearly, just as you would interpret them from the pies.

You should spend about 20 minutes on this task.

The pie charts below show the percentage of household energy usage by purpose in a European country in 2000 and 2020.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Write at least 150 words.

Note: The figures for 2000 and 2020 each add up to 100%.

How to Plan and Structure Your Pie Chart Report

Spend the first three to four minutes planning. Read the question carefully, study the pies (or the data table), and decide what the most important messages are. For this question, the key points are:

• In both years, heating was the largest category, but its share fell sharply.
• Appliances and the new “other” category grew noticeably.
• Water heating, lighting and cooking changed little.

Your report should follow a clear four-paragraph structure. Here is a plan you can adapt to any pie chart task:

Grouping data is a skill that examiners reward. Avoid writing one paragraph per pie or one paragraph per category; instead, find patterns. For the sample question, you could group the categories that decreased (heating, water heating, lighting) in Body 1 and those that increased or appeared (appliances, cooking, other) in Body 2.

Useful Language for Describing Pie Charts

Using a range of accurate vocabulary for proportions and changes is essential for a high Lexical Resource score. The tables below give you flexible options. Remember: the goal is to sound natural, not to force in a memorised list.

Vocabulary for Proportions

Verbs and Phrases for Describing Data

Comparison Language

When you practise, try to combine proportion language with change language in a single sentence. For example: “The proportion of energy used for heating fell sharply from just under half in 2000 to almost a third in 2020.”

A High-Scoring Model Answer

The pie charts compare the percentage of household energy consumed for six different purposes in a particular European country in the years 2000 and 2020.

Overall, heating was the dominant use of energy in both years, although its share declined considerably. Meanwhile, the proportion of energy used for appliances rose substantially, and a new category labelled “other” appeared in 2020. The remaining purposes experienced relatively minor changes.

In 2000, heating accounted for 48% of household energy usage, the largest share by a wide margin. However, by 2020 this figure had dropped to 30%. Water heating and lighting also saw decreases, though far less dramatic ones: water heating fell from 22% to 18%, while lighting edged down from 9% to 8%.

By contrast, the percentage of energy consumed by appliances grew markedly, rising from 15% in 2000 to 27% in 2020, making it the second largest category. Cooking remained a small but stable share, increasing marginally from 6% to 7%. Notably, a category that did not exist in 2000—other uses—made up 10% of energy consumption in 2020.

Word count: 184

Why the Model Answer Works

Task Achievement The introduction paraphrases the question without copying it. The overview clearly identifies the most significant features: heating’s dominance and decline, the rise of appliances, and the appearance of the “other” category. The body paragraphs group data logically and support every statement with accurate figures from the charts.

Coherence and Cohesion The report follows the four-paragraph plan exactly. Linking words such as “however,” “meanwhile,” and “by contrast” guide the reader without being overused. Information flows smoothly from the overview to the details, and within each body paragraph, ideas are connected through referencing (“this figure,” “the remaining purposes”).

Lexical Resource The answer uses a wide range of vocabulary for proportions and changes: “the dominant use,” “declined considerably,” “rose substantially,” “far less dramatic,” “edged down,” “grew markedly,” “a small but stable share.” It avoids repeating the same structures and employs synonyms effectively (“accounted for,” “made up,” “consumed”).

Grammatical Range and Accuracy Sentences vary in length and complexity. The report includes complex structures (“although its share declined considerably,” “making it the second largest category,” “a category that did not exist in 2000”) alongside simpler statements. There are no grammatical errors, and punctuation is used correctly throughout.

Common Mistakes That Lower the Band

• Writing without an overview: This is the most damaging error. Without an overview paragraph that highlights the main trends, your Task Achievement score cannot go above Band 5.
• Listing every percentage: A report that simply describes each slice one by one reads like a list, not a summary. Examiners look for grouping and selection of key features.
• Including personal opinions or reasons: Phrases like “I think this is because of new technology” or “The government should encourage less heating” are irrelevant and will lower your score.
• Using the wrong tense: If the charts show past years, use the past simple. If they show a future projection, use “is predicted to” or “is expected to.” Mixing tenses incorrectly confuses the reader.
• Copying the question wording: Paraphrasing is essential. If you copy whole phrases from the task, the examiner will not count those words, and your Lexical Resource score may suffer.
• Overusing linking words: Starting every sentence with “Furthermore,” “Moreover,” or “In addition” sounds mechanical. Use a mix of cohesive devices and rely on logical paragraphing instead.
• Misreading the data: Always check that percentages add up to 100% for each pie and that you have not confused categories. A single data error can hurt your Task Achievement score.
• Writing too few words: A report under 150 words will be penalised. Aim for 170–200 words to give yourself enough space to describe the data without being repetitive.

How to Practise and Key Takeaways

Regular, focused practice is the best way to improve. Work with real IELTS-style pie chart questions, time yourself strictly for 20 minutes, and then review your report against the four band descriptors. Pay special attention to whether your overview really captures the main message and whether you have grouped data effectively. For structured feedback and targeted lessons, you can practise with IELTS Writing lessons.

• Always include a clear overview that identifies the largest and smallest shares and the most important changes.
• Group data into logical paragraphs rather than describing each pie separately.
• Use a variety of proportion and change language, but keep it natural.
• Check that all percentages in your report match the data exactly.
• Manage your time: 3–4 minutes to plan, 12–13 minutes to write, and 2–3 minutes to check for errors.
• Read high-scoring model answers to internalise good structure and vocabulary, then write your own without looking at the model.

If you found this guide useful, you may also want to explore our other Task 1 resources: IELTS Academic Writing Task 1 line graphs, IELTS Academic Writing Task 1 bar charts, and all IELTS Writing task types.

Frequently asked questions

How do I write an overview for an IELTS pie chart?

An overview should summarise the most important trends without specific data. Look for the largest and smallest categories overall, and identify the biggest changes between the pies. For example, you might state which category dominated in both years and which ones increased or decreased the most. Keep it to two or three sentences.

What vocabulary should I use to describe proportions in a pie chart?

Use a range of expressions to avoid repetition. Options include 'a quarter,' 'just under a third,' 'the majority,' 'a small fraction,' and verbs like 'accounted for,' 'made up,' and 'constituted.' Match the language to the exact percentage: for example, 48% can be 'nearly half,' while 27% is 'just over a quarter.'

Can I write one body paragraph per pie chart?

It is better to group information by category or trend rather than by pie. For instance, you could describe categories that increased in one paragraph and those that decreased in another. This shows the examiner you can compare data across the charts, which is a key skill for a higher score.

How many words should my IELTS pie chart report be?

The minimum is 150 words, but a strong report usually falls between 170 and 200 words. This gives you enough space to include an introduction, a clear overview, and two body paragraphs with well-selected data, without becoming repetitive or running out of time.

What is the difference between a pie chart task and a bar chart task in IELTS?

Both tasks require you to summarise and compare data, but pie charts specifically show proportions of a whole. You must focus on shares and percentages, often comparing how these shares change over time or between groups. Bar charts can show a wider variety of data, such as totals or rankings, and may not always add up to 100%.