What is IELTS Writing Task 1?
IELTS Academic Writing Task 1 is the first writing task in the IELTS Academic test.
You must summarise, compare and analyse visual information such as a graph, chart, table, map or process diagram.
You should write at least 150 words and complete the task in around 20 minutes.
To achieve a Band 7 or higher, you need to identify and describe the main features of the visual information rather than every detail.
A successful IELTS Academic Writing Task 1 response should:
- identify 3 key features
- summarise the most important information
- analyse trends and comparisons rather than list numbers
- use the correct tense throughout
- include relevant supporting data
- use a range of linking words naturally
- describe changes, trends and comparisons accurately
- use formal academic language
- paraphrase the question in the introduction
- provide a clear overview of the main trends or features
If you’re new to IELTS Academic Writing Task 1, start by learning how to describe different question types:
- 📉 Line graphs: describing trends and changes over time
- 📊 Bar charts: comparing data at a single point in time
What types of questions appear in IELTS Writing Task 1?
In IELTS Academic Writing Task 1, you are asked to describe, summarise and analyse visual information.
Task 1 questions generally fall into 6 main categories:
📈 Line Graphs
Line graphs show how data changes over time. They are one of the most common Task 1 question types and you usually need to describe trends, increases, decreases and fluctuations.
📊 Bar Charts
Bar charts compare data across different categories. They may show information from a single point in time (static) or changes over a period (dynamic).
🟢 Pie Charts
Pie charts illustrate proportions or percentages that make up a whole. You may be given one chart or several charts to compare.
Tables
Tables present numerical information in rows and columns.
Multiple-Charts Questions
Sometimes IELTS combines two or more visual sources, such as a bar chart and a pie chart or a table and a line graph. In these questions, you need to identify connections between the different pieces of information and compare them effectively.
♻️ Process and Cycle Diagrams
Process and cycle diagrams show how something is made, how a system works, or how a natural cycle operates. Unlike graphs and charts, they focus on stages and sequences rather than numerical data.
Example: The process of making sugar from sugar cane, and natural cycles such as the water cycle or the life cycle of a butterfly 🦋.
🗺️ Maps
Map questions show changes to a place over time or compare two different locations. You need to describe developments, additions, removals and changes in layout.
Which question type is most common?
Most IELTS Academic Writing Task 1 questions involve graphs, charts or tables that contain numerical data. However, process diagrams and maps also appear regularly, so it is important to be familiar with all six question types.
Regardless of the question type, the examiner is looking for the same key skills: identifying the main features, selecting relevant information, making comparisons and presenting your ideas clearly in formal academic English.
How is IELTS Writing Task 1 assessed?
IELTS Writing Task 1 is assessed using four criteria: Task Achievement, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy. Each criterion contributes 25% of your score.
What is Task Achievement?
Task Achievement measures how effectively you answer the question. You must identify the key features, provide a clear overview and support your observations with relevant data. Candidates often lose marks by describing every detail or failing to highlight the main trends and comparisons.
What is Coherence and Cohesion?
Coherence and Cohesion refers to the organisation of your answer. Your ideas should be grouped logically into paragraphs, and relationships between ideas should be clear. Effective linking words can help guide the reader, but they should be used naturally rather than excessively.
What is Lexical Resource?
Lexical Resource assesses your vocabulary. Higher-scoring candidates use a range of precise language to describe trends, comparisons and data. Repeating the same words and phrases throughout your response can limit your score.
What is Grammatical Range and Accuracy?
Grammatical Range and Accuracy measures both the variety and accuracy of your grammar. A Band 7+ response typically contains a mix of simple and complex sentence structures, with few errors that affect communication. Choosing the correct tense is particularly important in Task 1, as many questions involve describing changes over time.
What Is the best structure for IELTS Writing Task 1?
The best IELTS Writing Task 1 structure consists of 3 paragraphs: an introduction with an overview, plus two body paragraphs. This simple structure makes your response easy to follow and ensures you cover all the key information.
What should I write in the introduction?
Your introduction should paraphrase (rewrite) the question by describing what the graph, chart, table, map or diagram shows. Keep it brief—one sentence is usually enough.
What should I write in the OVERVIEW?
The overview summarises the main trends, differences or stages without including too much data. This is the most important part of your response because it shows the examiner that you understand the information as a whole.
What should I include in the body paragraphs?
Your body paragraphs should describe the most important features of the data and support your observations with relevant figures. Rather than describing every number, focus on the key trends, comparisons and changes that help the reader understand the information.
Paragraph 1: Introduction and Overview
Paragraph 2: Key Features Group 1
Paragraph 3: Key Features Group 2
How do you write an introduction for IELTS Writing Task 1?
The purpose of the introduction is simply to tell the reader what the visual information shows. You do this by paraphrasing the question rather than copying it directly. Keep your introduction brief – one sentence is usually enough.
How do you paraphrase the question?
To paraphrase the question, replace some words with suitable synonyms or change the sentence structure while keeping the same meaning.
For example, instead of writing “The chart shows…”, you could write “The chart gives information about…” or “The chart compares…”.
What should you avoid in the introduction?
Try not to copy the question word-for-word, adding unnecessary details, or including your opinions. You should also avoid describing trends or data at this stage, as these belong in the overview and body paragraphs.
What is an overview in IELTS Writing Task 1?
An overview is a short summary of the main trends, features or stages shown in the graph, chart, table, map or process diagram.
Why is the overview so important?
The overview shows that you can identify the main features of the data. A clear overview helps the examiner see that you understand the information rather than simply describing individual numbers.
How long should the overview be?
One or two sentences long. It should be concise and focus only on the most significant trends, differences or changes.
What makes a strong overview?
A strong overview highlights the most important information in a clear and general way. For example, you might identify the highest and lowest figures, the overall trend, or the most significant change shown in the visual.
What are common overview mistakes?
Common mistakes include listing specific data, describing too many details, or simply repeating information from the introduction. Another frequent error is focusing on minor features instead of the main trends or comparisons.
What TENSES should you use in IELTS Writing Task 1?
Many Task 1 questions describe events in the past, but some require the present tense or future forms. Choosing the correct tense is important because grammatical accuracy contributes to your overall band score.
When should you use the Past Simple?
Use the Past Simple when the data relates to a completed period in the past, such as a graph showing information from 2000 to 2020. This is the most common tense used in IELTS Writing Task 1.
Read my complete guide to using the Past Simple in IELTS.
When should you use the Present Simple?
Use the Present Simple when the information is generally true or when no time period is given. For example, a process diagram showing how coffee is produced would normally be described using the Present Simple.
Read my complete guide to using the Present Simple in IELTS.
When should you use future forms?
Use future forms when the chart includes predictions, projections or forecast data. In these cases, you may need language such as will increase, is expected to rise or is projected to fall.
Read my complete guide to describing future trends in IELTS Writing Task 1.
How should you use numbers and data in IELTS Writing Task 1?
Numbers and data are very important in IELTS Writing Task 1, but they should support your analysis rather than dominate it.
The examiner wants to see that you can identify patterns, trends and comparisons, not simply copy figures from the chart or graph.
How much data should you include?
Include enough data to support your main points, but avoid mentioning every figure. Focus on the numbers that illustrate the most important trends, comparisons or changes.
When should you ’round’ numbers up or down?
It’s often helpful to round numbers when exact figures are not important. Using expressions such as approximately, around, about, just over and just under can make your writing easier to read and more natural.
How can you compare figures effectively?
Rather than listing numbers, try to explain what they show. For example, instead of stating two separate figures, you could highlight the difference between them or explain how one value was twice as high as the other. This demonstrates analysis and helps the reader understand the significance of the data.
How do you analyse data instead of listing numbers?
Instead of describing every number, focus on what the data shows. Look for the most important trends, significant changes and key comparisons, then use data to support your observations.
How do you describe significant changes?
Significant changes are usually the largest increases, decreases or fluctuations in the data. Rather than simply stating the figures, explain the change. For example, it is often more effective to say that a figure doubled or fell sharply than to list two separate numbers.
How do you explain trends?
A trend is the general direction of change over time. When describing trends, focus on the overall pattern rather than every movement. Ask yourself whether the data shows an increase, a decrease, stability or fluctuations, and summarise this clearly.
How do you compare different categories?
Comparisons help the reader understand relationships between different figures. Look for similarities and differences, such as the highest and lowest values or categories that followed a similar pattern. Expressions such as more than, less than, twice as many and similar to can help you make comparisons effectively.
What vocabulary do you need for IELTS Writing Task 1?
To get a high score in IELTS Writing Task 1, you need a range of vocabulary for describing trends, changes and comparisons.
How do you describe increases?
When a figure rises, you can use verbs such as increase, grow, rise and climb. You can also use noun phrases such as an increase, a rise or a growth in.
How do you describe decreases?
When a figure falls, useful verbs include decrease, decline, drop and fall. Noun phrases such as a decrease, a decline and a drop in can also help you vary your language.
How do you describe stability?
If a figure remains unchanged, you can use expressions such as remain stable, stay constant or remain unchanged.
How do you describe fluctuations?
When data rises and falls repeatedly, you can say that it fluctuated. You can also use phrases such as showed some fluctuation or experienced ups and downs to describe changing patterns.
How do you describe comparisons?
Comparisons are essential in Task 1. Useful expressions include higher than, lower than, similar to, twice as much as and three times as many as.
What linking words should you use in IELTS Writing Task 1?
Linking words help connect your ideas and make your writing easier to follow. However, in Task 1, they should be used naturally to show relationships between trends, comparisons and data rather than simply to demonstrate vocabulary.
Which linking words sound natural?
Useful linking words include while, whereas, although, in contrast, by comparison, meanwhile and similarly. These expressions are particularly helpful when comparing figures or describing different trends within the same chart or graph.
Which linking words should you avoid overusing?
Avoid starting every sentence with words such as besides, moreover or furthermore. While these can be useful occasionally, overusing them can make your writing sound unnatural.
What are the most common IELTS Writing Task 1 mistakes?
The most common mistakes involve focusing too much on detail, missing key features, or using the wrong style of writing.
Is it a mistake to describe every number?
Yes. The examiner can already see the data, so there is no need to mention every figure. Instead, focus on the most important trends, changes and comparisons, using data to support your observations.
Is it a mistake to omit the overview?
Yes. The overview is one of the most important parts of your response because it summarises the main features of the visual information. Without a clear overview, it is difficult to achieve a high Task Achievement score.
Is it a mistake to give your opinion?
Yes. Task 1 is a factual report, not an essay. Your job is to describe and analyse the information presented, not to explain why something happened or give your personal views.
Is it a mistake to use informal language?
Yes. IELTS Writing Task 1 requires a formal academic style. Avoid contractions, slang and conversational expressions, and use precise language to describe trends, comparisons and data.
How can you improve your IELTS Writing Task 1 score?
Key takeaways
To achieve a high score in IELTS Writing Task 1:
- identify the key features before you start writing
- write a clear overview
- focus on trends and comparisons, not every number
- support your ideas with relevant data
- use a range of vocabulary accurately
- choose the correct tense
- organise your answer into clear paragraphs
With consistent practice and the right approach, a Band 7+ score is an achievable goal for many IELTS candidates.
Frequently asked questions about IELTS Writing Task 1
Here are answers to some of the questions students ask most often.
How many words should IELTS Writing Task 1 be?
The minimum word count is 150 words. In practice, most strong responses are between 160 and 200 words, which gives you enough space to develop your ideas without including unnecessary details.
Can I write more than 150 words?
Yes. There is no upper word limit. However, writing significantly more than necessary can increase the chance of making mistakes and may leave you with less time for Task 2.
Can I use bullet points?
No. IELTS Writing Task 1 should be written in full paragraphs. Bullet points are not appropriate for this task.
Can I give my opinion?
No. Task 1 is an objective summary of visual information. Your role is to describe and analyse the data, not to explain it or give your personal views.
Is the overview compulsory?
Yes. A clear overview is essential because it summarises the main features of the data. Without one, it is difficult to achieve a high score for Task Achievement.
Which is more important: Task 1 or Task 2?
Task 2 is worth twice as much as Task 1, so it has a greater impact on your overall Writing band score. However, a strong Task 1 response can still make a significant difference to your final result.
How much time should I spend on Task 1?
You should spend approximately 20 minutes on Task 1 and 40 minutes on Task 2. This allows you to divide your time in proportion to the marks available..
Extra Tips
How to reach the word count in 20 minutes
The instructions say you must write 150 words, but it’s better to write 160 – 200 words.
Don’t waste time counting words – practise writing 160 words minimum before the test.
How to paraphrase the question – 2 options
There are 2 main ways of paraphrasing the question
1. Replace certain words with synonyms that you feel confident with, for example:
- The chart shows average carbon dioxide emissions in the United Kingdom, Sweden, Italy and Portugal.
- The chart (compares, analyses, outlines, highlights, gives data on, provides an analysis of) CO2 emissions in four European countries.
2. Restructure the sentence.
Show the examiner you can use more complex structures by changing nouns into verbs, and using the PASSIVE form:
- The chart shows average carbon dioxide emissions in the United Kingdom, Sweden, Italy and Portugal.
- The chart examines how much CO2 was emitted in four European countries.
You can often group countries into regions e.g. in Italy, France, Spain and Poland = in 4 European countries or use the adjective form e.g. a university in the UK = a British University.
Vary the way you describe the time period e.g.
- from 1995 to 2015
- between 1995 and 2015
- over a 20-year period
- over two decades.
How to quickly find 3 key features.
If you’re doing the paper-based test, write on the Question Paper.
Draw quick arrows so you can easily see what went up/down.
Label the lines on a graph so you can see them more clearly.
Find
the highest/the lowest
the things that changed the most/the least
the things which are the same
the things which are different (What bucks the trend? What is the outlier?)
This should only take 2-3 minutes.
Find an ‘overall trend’, something which is very general and relates to the graph/chart as a whole (imagine you can’t see the numbers).
MOST graphs show changes over time (dynamic graphs), so you look at them horizontally ➡️ (e.g. sales increased/ decreased over a 10-year period).
But you also need to compare who had the highest/ lowest sales over the period – this is comparing vertically ⬇️.
How to decide what tense(s) you need.
Most dynamic graphs describe changes that took place in the PAST.
This means that you must put most of the verbs in the SIMPLE PAST.
However, sometimes you may need to make PREDICTIONS.
If you’re describing a graph that has no time marker (e.g. percentage of salt/fat in everyday food, location of world’s oil resources, poverty rates according to age/gender) choose the PRESENT SIMPLE.
How to include specific data
It is difficult for the reader to process a lot of numbers.
Your job is to summarise the data so that the reader doesn’t have to.
Do this by:
- rounding up wherever you can (use words like approximately, around, about, just over/under)
- putting numbers in brackets
- analysing information
There are many ways of describing and including data, for example:
- How to use ‘Twice as much/as many’.
How to avoid just listing numbers
Don’t describe every detail – the examiner can see the details. You need to analyse and make comparisons.
Which of these sentences is easier for the reader to follow and process?
(a) ‘Tourist numbers went up to 61,335 in 1982, then they went down to 51,345 in 1985, then they increased again to 111,372 in 1995 and then they fell to 69,999 in 2000’.
(b) In 1985 there were only around 50K visitors, but this figure had more than doubled a decade later.
Sentence (a) is actually quite difficult to read because there are too many numbers and no analysis. Sentence (b) makes far more sense to the reader.
Try to find quick ways of ANALYSING the numbers.
Look for numbers that halved, doubled, tripled, etc.
Look for places where you can show complex analysis e.g.
- (BEFORE) Numbers increased from 3000 visitors in 2000 to 12,000 visitors in 2005.
- (AFTER) There were four times as many visitors in 2005 as there were in 2000
- (OR) Tourist numbers increased fourfold.
Add some extra data if necessary e.g.
- …with 12,000 people visiting the town in 2005 compared to a quarter as many in 2000.
Get more advice on using with + ing verb here.
How to use natural linking words
But don’t start every sentence with ‘However’ ‘In addition’ ‘Nevertheless’ etc. Try to use more variety in your linking words e.g. even though, whereas, apart from.
Use expressions like these to introduce your paragraphs:
First paragraphs:
- Looking first of all at…
- Let us start with …
- Let us start by examining/ looking at …
These can be followed by either
1) a reference to the chart/graph/table that you are analysing
or
2) a reference to the particular aspect that you are analysing e.g. If we look first at the number of/percentage of/proportion of/expenditure on/forecasts for/the figures for etc, we can see that there was a significant increase.
Second Paragraphs
- Let us look now at…
- Looking more closely at …
- Turning now to…
All of these can be followed by either
1) a reference to the chart/graph/table that you are analysing
or
2) a reference to the particular aspect that you are analysing e.g. Turning now to the number of/percentage of/proportion of/expenditure on/forecasts for/the figures for etc, we can see that there was a significant increase.
How to use a variety of expressions to describe change.
If you are describing a DYNAMIC graph (the most common type), try to use a variety of language e.g.
(a) a simple verb + adverb collocation (It fell considerably)
(b) a more complex adjective + noun collocation (There was a considerable fall.)
(c) other phrases e.g. The town experienced/ saw/ underwent a number of changes
(d) prepositions e.g.
- There was an increase OF 20%.
- The number increased BY 20%.
- There was an increase IN sales.
Review all the prepositions relating to time periods:
- IN: months, years
- ON: days
- AT: times
- OVER: a 20-year period
- DURING: this period
IMPORTANT: DON’T give your opinion.
It is very tempting to give your opinion on why the changes happened, but don’t.
Don’t say why you think something happened – this will lose points in Task Achievement because it is considered to be subjective rather than objective.
e.g. if you notice that sales fell dramatically in 2008, DON’T say ‘this was probably due to the global financial crisis’.
Just report the facts.
Avoid any ’emotional’ language unless it is specifically stated in the graph.
e.g. Don’t say ‘50% of over 60s enjoyed/preferred going to the gym’ when the graph simply shows that ‘50% of over 60s WENT to the gym’.
What is the difference between the overview and the introduction?
The introduction simply says what the graph is about.
An overview is absolutely crucial for a minimum score of 6 in Task Achievement. It can be very general and does not need to include data/numbers/figures.
Try to see the ‘big picture’ (but don’t be afraid to say that there was no significant change, or no significant differences, or ‘no correlation between…’ if that is the big picture).
Always include a sentence beginning ‘Overall,…’
This can come at the start (in the introduction) or at the end as your final paragraph.
Try not to repeat information that you have already mentioned.
- You do not need to add data in the overview – in fact, it is better NOT to use data in the overview.
IMPORTANT: DON’T spend more than 20 minutes on Task 1
Task 2 is worth more than Task 1, so make sure that you stop after 20 minutes, and go on to Task 2.
My advice is:
- Plan* – 3 minutes
- Intro and Overview – 3 minutes
- Main Body – 12 minutes
- Edit* – 2 minutes
*Don’t skip the planning and editing
👉 Struggling with IELTS Academic Writing Task 1?
Learn the structures, vocabulary and strategies you need to describe graphs, charts, maps and processes with confidence.
👉 Want to know what is stopping you reaching Band 7?
Get expert feedback on your Writing Task 1 and find out exactly what to improve before your next test.
