An IELTS writing task 1 bar chart asks Academic candidates to describe the information in a chart in at least 150 words, written in full sentences in an academic or semi-formal style, within the 20 minutes or so that the 60-minute Writing paper allows for Task 1. Examiners read for a sound selection of key features, a clear overview and accurate comparisons, so the answer reports the main patterns in the data and leaves out reasons or opinions. Bar charts appear as single, grouped or stacked versions, and each calls for a slightly different plan.
The same four published criteria mark every Task 1 response, which means a routine of reading the chart, writing a paraphrased introduction, an overview and two grouped body paragraphs, and then checking the draft against those criteria tends to carry over from one chart to the next. The model answer on this page uses a grouped bar chart with every figure given in the task wording, so each comparison can be traced back to the data.
What does a bar chart task look like in Academic Writing Task 1?
A bar chart task in Academic Writing Task 1 asks for a written summary of one chart, using at least 150 words and taking no more than about 20 minutes of the 60-minute Writing paper. The task sets one or more graphs, charts or tables, or a diagram of an object, device, process or event, and a bar chart belongs to the first group. Answers must use full sentences in an academic or semi-formal, neutral style, and notes or bullet points are inappropriate.
Task 1 is an information-transfer task that relates narrowly to the factual content of the chart, so the response reports what the bars show and leaves out speculation about causes. Each task is assessed independently, and Task 2 carries more weight in marking than Task 1, which affects how long a 150-word answer deserves.
What is the difference between single, grouped and stacked bar charts?
A single bar chart shows one measure across several categories, a grouped bar chart places two or more bars side by side within each category, and a stacked bar chart splits each bar into segments that add up to a total. Horizontal and vertical layouts are read in the same way, so the orientation changes nothing about the plan.
Before writing, identify the topic, the place, the time and the unit of measurement from the title, axes and legend, then note the highest and lowest bars and any marked change. With a single chart, ranking the categories gives the structure. With a grouped chart, the comparison between series inside each category, and the change between them, carries the message. For a stacked chart, describe the totals first and then the segments that drive the differences.
IELTS Preparation tutors
Mark
Master TutorI have thirty years in education, including Head of English at an independent school and GCSE and A-Level examiner. I teach English, Literature, Language, Creative Writing and Critical Thinking, ages four to eighteen. I start from what a student can already do and adapt my methods to them.
Enquire about this tutor
Johanna
Expert TutorI have two decades' teaching experience in English Literature, English Language and Philosophy, and hold a PhD in English Literature. I teach GCSE, A-Level, Oxbridge entrance and UCAS personal statements. My approach is person-centred, working through dialogue and ongoing assessment.
Enquire about this tutor
Owen
Expert TutorI gained an MA and MPhil at Girton College, Cambridge, and am a British Council certified counsellor. I specialise in Oxbridge preparation and university admissions, and teach A-Level English Literature, French and German, using the discursive, oral-first style of an Oxbridge supervision.
Enquire about this tutorHow do you decide whether to group by category or by time?
Group by time when the main message is change across dates, and group by category when the main message is how items differ at one point or between two dates. Charts show either change over time or differences without a time element, and each needs a different approach, with trend verbs for the first and comparatives and superlatives for the second.
To decide, draft both plans in one line each and choose the one in which each body paragraph supports one sentence of the overview. Group items that behave in a similar way, for instance one paragraph for the categories that rose and one for those that fell, because similar items allow more comparison and contrast language. A plan that needs a third body paragraph to hold leftover items usually signals that the grouping needs rethinking.
How do you write the overview, comparisons and superlatives?
The overview is a short statement of the main features of the chart, written without specific figures and placed either at the end of the introduction or after the body paragraphs, with only one overview in the answer. Only one overview is needed, and choosing two or three main points keeps it short. It usually names the largest category, the clearest change or the sharpest contrast, and opens with a marker such as overall or in general.
Comparatives and superlatives then carry the body paragraphs: higher than, twice as high as, the largest share, the smallest figure, the second highest. Contrast and sequence markers such as whereas, while, in contrast and respectively keep the comparisons linked, and trend verbs such as rise, climb, fall, decline, remain stable and fluctuate suit charts that run across dates. Degree adverbs such as sharply, gradually and slightly show how large a change is.
How do you use approximation language and how many figures should you quote?
Approximation phrases such as just under, just over, roughly a third, about double and approximately a fifth suit values that sit between gridlines, whilst exact figures suit the values that carry the main points. Fractions and multiples such as a quarter, three-quarters, doubled and tripled compress a comparison into a few words and show the examiner a range of expression.
Task Achievement rewards selecting key features, giving sufficient detail to illustrate them and reporting figures accurately, so the answer quotes figures where the chart presents them and concentrates on the main differences or changes instead of every bar. A workable pattern quotes the highest and lowest values, the largest change and the pairs that anchor each comparison, and uses approximation for the remaining values.
Model answer: Model answer for a grouped bar chart on household spending
Task: You should spend no more than 20 minutes on this task.
The grouped bar chart shows the percentage of household spending that went on four categories in one northern European country at the start and at the end of a 20-year period. At the start: housing 28 per cent, food 22 per cent, transport 15 per cent, leisure 9 per cent. At the end: housing 33 per cent, food 16 per cent, transport 14 per cent, leisure 13 per cent.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
"The bar chart compares the percentage of household spending allocated to housing, food, transport and leisure in one northern European country at the start and at the end of a 20-year period.
"Housing accounted for the largest share in both years and grew further, whereas food was the only category to lose a notable share. Transport stayed almost level, and leisure gained ground.
"At the start, housing took 28 per cent of spending, followed by food at 22 per cent, just over a fifth of the total. Transport made up 15 per cent, whilst leisure, at 9 per cent, was the smallest item. By the end, housing had reached 33 per cent, roughly a third of all spending, and was about double the 16 per cent spent on food.
"Food fell by six percentage points, the largest single change shown, whereas transport slipped marginally from 15 to 14 per cent. Leisure rose from 9 to 13 per cent, which cut its gap with transport to a single percentage point, although it remained the smallest of the four categories.
What this model answer does:
- Task Achievement: the overview contains no figures and names the two clearest features, the leading position of housing and the fall in food.
- Task Achievement: figures are selected for the largest, smallest and most changed categories, and approximations such as just over a fifth and roughly a third replace repeated exact values.
- Coherence and Cohesion: each paragraph has one job, with the introduction paraphrasing the task, the overview summarising, and the body paragraphs ordered by size at the start, then by the end position and the changes.
- Lexical Resource: synonyms such as share, spending, accounted for and took avoid repeating the question wording, and comparison words such as whereas, double and gap show range.
- Grammatical Range and Accuracy: simple, compound and complex sentences are mixed, including relative clauses and contrast clauses.
What are the common mistakes in a bar chart answer?
Answers lose marks when they describe every figure, leave out an overview, put figures in the overview, or offer reasons for the trends. The Task Achievement criterion asks for identifiable trends, principal changes or differences to be highlighted instead of mechanical description reporting detail, so most errors come from reporting too much and comparing too little. Each one can be removed during practice by checking a draft against the list below.
- Describing every bar in turn as a robotic list of figures
- Giving an overview that contains figures, or several overviews
- Explaining why a trend happened, which lies outside the given data
- Copying the wording of the question in the introduction instead of paraphrasing it
- Using notes or bullet points inside the answer
- Writing fewer than 150 words, or confusing percentages with absolute numbers
How should you practise and check a bar chart answer?
Practise in the order the answer is built: read the chart and note the topic, place, time and unit; write a paraphrased introduction; write an overview with no figures; plan two body paragraphs by grouping similar items; and only then add comparison and approximation language. Writing each stage separately for several charts builds speed before the full task is attempted under the 20-minute limit.
Once a full answer can be written within about 20 minutes, mark each draft against the four published criteria, reading it once for each and noting one change to make in the next practice answer. Using a different chart type each time, from single to grouped to stacked, builds the planning habits that every type shares.
- Task Achievement: key features selected, enough detail to illustrate them, figures reported accurately, comparisons made, at least 150 words
- Coherence and Cohesion: logical paragraphing, information sequenced within and across paragraphs, reference words and connectors used flexibly
- Lexical Resource: a range of general words and synonyms, precise word choice, accurate spelling and word formation
- Grammatical Range and Accuracy: a mix of simple, compound and complex sentences, accurate punctuation, few errors that affect meaning
Related guides
- What is IELTS? Format, versions and scoring
- IELTS Speaking band descriptors
- IELTS Writing Task 1 (Academic)
- Task 1 line graph model answer
- Task 1 pie chart model answer
- Task 1 table model answer
- Task 1 process diagram model answer
English tuition for adults with Taylor Tuition
Adults who come to us for English usually know the situation they need it for, whether that is a job, a test or daily life in the UK, so lessons start with a level check against the CEFR scale and are then built around the tasks the learner actually faces.
English for adults is taught one-to-one or in small groups, at every level from beginner (CEFR A1) to proficient (C2), online or in person in central London. Fees start from £50 per 50-minute session and depend on tutor level, there is no registration fee and the initial consultation is free. Employers can book programmes for staff and are invoiced directly.
Read more about our IELTS preparation tutors, or send an enquiry and we will come back with tutor recommendations.
Frequently asked questions
- Do you need a conclusion in an IELTS Task 1 bar chart answer?
- The published Task Achievement criteria list selecting key features, providing sufficient detail, reporting figures accurately, comparing or contrasting, and an appropriate format, and none of them names a conclusion. The overview already performs the summarising job, so any closing sentence is optional and should add no new figures. Time saved by skipping it is usually better spent checking that each comparison matches the chart.
- Can you use bullet points or notes in a bar chart answer?
- Answers must be written in full sentences, and notes or bullet points are inappropriate. Scripts may be penalised if they are not written as full, connected text. A brief plan can be jotted before writing, but the answer itself should be continuous paragraphs: an introduction, an overview and body paragraphs that group the data.
- How is Task 1 weighted compared with Task 2?
- Each task is assessed independently, and Task 2 carries more weight in marking than Task 1. Task 1 is marked on Task Achievement, Coherence and Cohesion, Lexical Resource and Grammatical Range and Accuracy, whereas Task 2 uses Task Response in place of Task Achievement. A finished Task 1 answer within about 20 minutes leaves the rest of the 60 minutes for Task 2.
- Should you explain why the bars change?
- Task 1 relates narrowly to the factual content of the chart, so reasons for a trend fall outside what is assessed. A sentence claiming that rents rose because of population growth adds an outside claim, whereas a sentence stating that housing rose from 28 to 33 per cent reports the data. Keep every sentence traceable to a bar, a label or an axis.
- How should the introduction be worded for a bar chart?
- A single sentence paraphrasing the prompt is enough, stating what the chart shows, where and when, with verbs such as shows, illustrates, gives or compares. Lexical Resource includes the range of general words, such as synonyms that avoid repetition, so changing percentage of spending to share of the household budget demonstrates that range at the start of the answer.
Enquire about IELTS preparation
Start your enquiryHow Taylor Tuition can help
Expert, one-to-one support from specialist tutors.
Editorial Notice
We use automated research tools to help collate and maintain information across our website. While each post is reviewed before publication, some details may be incomplete or inaccurate.
Taylor Tuition
Educational Consultancy
Contributing expert insights on education, exam preparation, and effective learning strategies to help students reach their full potential.