IELTS Writing Task 1 Academic requires candidates to describe visual data in at least 150 words in approximately 20 minutes. It contributes one-third of the overall Writing band score. The four marking criteria — Task Achievement, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy — are equally weighted at 25% each. The single most important feature for any response scoring above Band 6 is the overview paragraph: two sentences summarising the 2–3 most striking trends without quoting specific figures. Every sample answer in this guide targets Band 8, with inline annotations identifying the features that earn marks in each criterion.
1. What Task 1 Academic Requires
Before examining sample responses, it is important to understand what the examiner is looking for. Task 1 Academic is not a comprehension exercise — it is a writing task that assesses how precisely and coherently you can summarise and compare data using academic English.
- Minimum 150 words — responses under 150 words are penalised under Task Achievement. Most Band 8 responses are 175–200 words.
- 20 minutes — this leaves 40 minutes for Task 2, which is worth twice as much. Time discipline is essential.
- Four criteria, equally weighted — Task Achievement (TA), Coherence and Cohesion (CC), Lexical Resource (LR), and Grammatical Range and Accuracy (GR) each contribute 25% to the Task 1 band score.
- Overview paragraph — this is the element that most distinguishes Band 6 from Band 7+. It must summarise 2–3 key trends at a high level, without copying the chart title and without citing specific data figures.
- No personal opinion — Task 1 Academic is strictly objective. First-person evaluative language ("I think this is alarming") is penalised under Task Achievement.
The recommended paragraph structure for all chart types is: Introduction (paraphrase the chart title) → Overview (2 sentences, key trends) → Body Paragraph 1 (first group of data) → Body Paragraph 2 (second group of data). For process diagrams, the body covers each stage sequentially rather than grouping data by comparison.
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Try AI Writing Evaluator2. Bar Chart Sample Answer (Band 8)
Chart description: A bar chart compares the percentage of households with internet access in five countries (UK, South Korea, India, Nigeria, and Brazil) in 2010 and 2022.
Read the full Band 8 response below. Inline annotations in brackets identify the features being demonstrated: [TA] Task Achievement, [LR] Lexical Resource, [GR] Grammatical Range, [CC] Coherence and Cohesion.
The bar chart illustrates the proportion of households with internet access across five countries — the United Kingdom, South Korea, India, Nigeria, and Brazil — for the years 2010 and 2022. [TA: paraphrased title without copying]
Overall, internet access rose across all five nations over the twelve-year period. South Korea recorded the highest levels of connectivity throughout, whilst Nigeria, despite having the lowest access in both years, demonstrated the most dramatic proportional increase of the group. [TA: clear overview; two key trends; no figures]
In 2010, South Korea led all five countries with approximately 95% of households connected, a figure that rose only marginally to 99% by 2022, suggesting near-universal saturation. [LR: "saturation", "marginally"] The United Kingdom also recorded high connectivity, increasing from roughly 73% to 93% — a marked increase of 20 percentage points. [LR: "a marked increase"]
By contrast, India, Brazil, and Nigeria all reported considerably lower levels of access in 2010, at approximately 15%, 35%, and 8% respectively. [CC: "By contrast" — logical transition between groups] By 2022, Brazil had grown to around 80%, while India reached approximately 55%. The most notable growth, however, was in Nigeria, where the figure for household internet access rose to approximately 45% — representing approximately double the rate of India in 2010 and surpassing it as the fastest-growing nation in proportional terms. [GR: subordinate clause; comparative structure; precise qualification]
Word count: 188
Key language for bar charts
- "a marked increase" — describes a significant, clearly visible rise
- "the figure for X stood at" — introduces a precise data point naturally
- "by contrast" — signals a shift to an opposing or different group
- "approximately double" — comparative language for proportional growth
- "marginally higher than" — precise qualification for small differences
Examiner commentary: This response earns Band 8 because the overview correctly identifies two high-level trends (universal growth; South Korea highest throughout) without data figures, satisfying Task Achievement at the highest level. The body paragraphs group countries logically by access level rather than listing each country individually, demonstrating the organisational skill rewarded under Coherence and Cohesion. Precise language choices such as "near-universal saturation" and "proportional terms" reflect the Lexical Resource expected at Band 8. For further practice, visit the bar chart practice section.
3. Line Graph Sample Answer (Band 8)
Chart description: A line graph shows changes in average monthly temperatures (°C) in London, Cairo, and Sydney from January to December.
The line graph depicts average monthly temperatures in degrees Celsius recorded across twelve months for three cities: London, Cairo, and Sydney. [TA: clear paraphrase of chart description]
Overall, Cairo consistently recorded the highest temperatures throughout the year, while London and Sydney displayed broadly inverse patterns relative to one another, which reflects the differing seasons of the northern and southern hemispheres. [TA: two key observations; no data figures; explains WHY Sydney is inverse]
Cairo's temperatures rose steadily from approximately 13°C in January, peaked at around 35°C in July and August, before declining gradually towards the end of the year. [LR: "rose steadily", "peaked at", "declining gradually"] London followed a similar seasonal pattern, albeit at significantly lower temperatures, fluctuating between approximately 4°C in January and a summer high of around 18°C in July. [GR: concessive adverbial; comparative structure]
Sydney, by contrast, followed an inverse pattern to London, beginning the year at approximately 25°C in January — its warmest point — before falling to a winter low of around 12°C in July, after which temperatures climbed steadily back towards the year's end. [CC: logical contrast with previous paragraph; cohesive reference to "inverse pattern" introduced in overview] Temperatures in Sydney remained relatively stable between April and August, fluctuating between 12°C and 16°C, before rising again in the final quarter.
Word count: 191
Key language for line graphs
- "rose steadily" — gradual, consistent upward movement
- "peaked at" — reached the highest point before declining
- "remained relatively stable" — little change over a period
- "fluctuated between" — irregular movement within a range
- "followed an inverse pattern" — moved in the opposite direction to another variable
Examiner commentary: The key Band 8 feature here is the explanation of Sydney's inverse pattern in the overview — this demonstrates analytical understanding rather than mechanical data reporting. Using cohesive reference ("inverse pattern" appears in both the overview and the body paragraph for Sydney) demonstrates the Coherence and Cohesion skill assessed at Band 8. Practise line graph responses in the line graph practice section.
4. Pie Chart Sample Answer (Band 8)
Chart description: Two pie charts showing household spending categories in Australia in 1990 and 2020.
The two pie charts compare the distribution of household expenditure across several categories in Australia in 1990 and 2020. [TA: "distribution of expenditure" — precise paraphrase]
Overall, housing and transport became considerably more prominent categories of household spending over the three decades, whilst food and clothing declined in their proportional share. [TA: identifies the key changes between the two charts; no figures; clear overview]
In terms of categories that grew in proportion, housing accounted for nearly half of all household spending in 2020 at 45%, a considerable rise from 30% in 1990. [LR: "accounted for nearly half", "a considerable rise"] Transport similarly saw a significant increase, rising from a modest proportion of 8% to 18%, making it the second largest category in 2020. Healthcare, though remaining a small share, grew from 3% to 7% over the same period. [GR: concessive clause — "though remaining a small share"]
Conversely, food declined from representing the largest share in 1990 at 35% to just 20% in 2020. [CC: "Conversely" — signals shift to decreasing categories] Clothing also declined, from 14% to 5%, while entertainment expenditure remained broadly stable, decreasing only marginally from 10% to 5% over the thirty-year period. The data suggest a shift in Australian household priorities towards accommodation and mobility at the expense of food and clothing. [TA: interpretive closing sentence — summarises trend without exceeding task scope]
Word count: 186
Key language for pie charts
- "accounted for nearly half" — proportion language without exact figure
- "the largest share" — identifies the dominant category
- "a modest proportion of" — signals a small percentage precisely
- "saw a considerable rise" — verb-based reporting phrase for increases
- "declined from X to Y" — clear, direct reporting of a decrease with data
Examiner commentary: The closing interpretive sentence ("The data suggest a shift in Australian household priorities") is a Band 8 feature — it frames the data meaningfully without straying into personal opinion. The grouping of categories into those that increased and those that decreased demonstrates organisational skill at the highest level. Explore more examples in the pie chart practice section.
5. Table Sample Answer (Band 8)
Table description: A table shows population (millions), GDP per capita (USD), and literacy rate (%) for five countries: Japan, Brazil, South Africa, India, and Sweden.
The table presents data on three economic and social indicators — population size, GDP per capita, and literacy rate — for five countries: Japan, Brazil, South Africa, India, and Sweden. [TA: precise paraphrase listing the three variables]
Overall, Sweden and Japan led the group in terms of both GDP per capita and literacy rate, whilst India recorded the largest population. South Africa and India presented contrasting profiles despite relatively comparable population sizes, with Sweden emerging as the strongest performer across all three indicators. [TA: two clear trends; no figures; comparisons identified]
While Sweden led the group with a GDP per capita of approximately $55,000 and a near-perfect literacy rate of 99%, Japan recorded comparable figures — $42,000 and 99% respectively — making these two nations the highest performers across the table. [GR: complex comparative sentence with subordinate clause] Brazil occupied a middle position, with a GDP per capita of $9,500 and a literacy rate of 93%. [LR: "occupied a middle position" — analytical phrasing]
At the other end of the spectrum, India recorded a GDP per capita of just $2,100 and a literacy rate of 77%, despite having by far the largest population at 1,420 million. [LR: "at the other end of the spectrum"] The most notable difference between India and South Africa — both lower-income economies — was in population, where South Africa's 60 million was considerably smaller. Compared to India, South Africa's GDP per capita of $6,200 and literacy rate of 87% placed it closer to Brazil in economic terms. [CC: comparison linking three countries across two paragraphs]
Word count: 194
Key language for tables
- "in terms of" — introduces the criterion of comparison
- "compared to" — signals a direct cross-country or cross-category comparison
- "the most notable difference" — draws attention to the key contrast
- "while X led the group with" — introduces the top-performing data point
- "at the other end of the spectrum" — transitions to the lowest-performing data
Examiner commentary: Tables tempt candidates into listing every data point in sequence, which scores no higher than Band 5 for Coherence and Cohesion. This Band 8 response avoids that trap by grouping countries into high-performers, mid-range, and lower-income categories. The overview correctly identifies that Sweden and Japan lead across multiple indicators — a multi-variable observation that demonstrates the sophisticated data reading expected at Band 8.
6. Process Diagram Sample Answer (Band 8)
Process description: A diagram illustrates the process of water purification from river intake to household supply, involving six distinct stages.
The diagram illustrates the sequential stages involved in purifying river water for domestic use, from the initial intake of raw water to its final distribution to households. [TA: states start point, end point, and purpose]
Overall, the process is linear rather than cyclical and comprises six distinct stages, beginning with the extraction of water from a natural source and culminating in treated water being delivered to residential properties. [TA: overview identifies linear/cyclical nature and total stages — the two required elements]
In the first stage, raw water is pumped from a river using a motorised intake pump and directed into a screening chamber, where large particles such as leaves, sediment, and debris are removed through a series of mesh filters. [GR: passive voice; relative clause; complex noun phrase] Subsequently, the pre-filtered water passes through a sedimentation tank, where it is allowed to settle under gravity so that finer suspended particles sink to the bottom and are periodically removed as sludge. [LR: "sedimentation", "suspended particles", "sludge"]
At the next stage, the clarified water is then treated with chlorine to eliminate harmful bacteria and pathogens. [CC: "at the next stage" — sequencing language maintains cohesion] It subsequently passes through a filtration bed composed of layers of sand and gravel, which removes any remaining fine impurities. In the penultimate stage, a second chemical treatment is applied to adjust the pH balance of the water to meet safety standards. Finally, the purified water is stored in a covered reservoir before being distributed through underground pipes to supply individual households. [GR: "before being distributed" — non-finite clause; passive throughout maintains academic register]
Word count: 193
Key language for process diagrams
- "is pumped from" — passive voice; introduces the first action
- "subsequently passes through" — sequencing with passive voice
- "at the next stage" — cohesive device for stage-by-stage progression
- "is then treated with" — introduces a treatment or transformation step
- "the final product is distributed" — closes the process at the output stage
Examiner commentary: Process diagrams are the chart type most commonly handled poorly by candidates who panic at the lack of numerical data. This response demonstrates that Band 8 is achieved not through data analysis but through accurate sequencing, consistent passive voice, and subject-specific vocabulary. The overview correctly states that the process is linear and names the number of stages — both are required elements. Candidates who write "there are stages in the process" without specifying the number fail to demonstrate the overview-writing skill.
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Try AI Writing Evaluator7. The Overview Paragraph: Why It Determines Your Band
The overview paragraph is the single feature most strongly correlated with Task Achievement scores above Band 6. Many candidates understand its importance in theory but write an overview that is, in practice, no more than a paraphrase of the chart title. The comparison below illustrates the distinction clearly.
Weak Band 5-6 Overview
"The bar chart shows information about internet access in five countries. The data is shown for 2010 and 2022."
Why this fails: It merely restates what the chart title already says. There is no trend identified, no comparison made, and no high-level summary. This response cannot exceed Band 5 for Task Achievement regardless of the vocabulary or grammar used elsewhere.
Strong Band 8 Overview
"Overall, internet access increased across all five nations over the twelve-year period, with South Korea recording the highest levels throughout, whilst Nigeria, despite having the lowest access, showed the most dramatic proportional growth."
Why this works: It identifies two distinct key trends at a high level (universal growth; South Korea highest; Nigeria most dramatic growth). It uses no specific figures. It sets up the body paragraphs by establishing the two natural groupings: high-access countries and lower-access countries.
Overview Writing Rule
Every Task 1 Academic response requires an overview. Write it as your second paragraph, immediately after the introduction. Limit it to two sentences maximum. Never include specific data figures in the overview.
Additional guidance on paraphrasing introductions, selecting key features, and structuring body paragraphs is available in the Writing Phrase Bank and the full IELTS Writing Guide.
Frequently Asked Questions
How long should an IELTS Writing Task 1 Academic response be?
The minimum is 150 words. Most Band 8 responses are 175–200 words. Going beyond 220 words risks running over the 20-minute time limit. Quality of feature selection matters more than word count — padding with repeated data does not improve scores.
Do I need to give my opinion in Task 1 Academic?
No. Task 1 Academic requires objective description of data only. Phrases such as "I think this is concerning" or "In my opinion" are inappropriate and may be penalised under Task Achievement for being outside the task requirements.
What is the most common reason Task 1 responses score Band 5 or below?
Absence of a clear overview paragraph. Without one, a response cannot exceed Band 5 for Task Achievement regardless of language quality. Many candidates begin by paraphrasing the chart title (which is not an overview) and then list every data point without selecting key trends.
Can I write Task 1 before Task 2?
Yes — there is no prescribed order. However, the recommended approach is Task 1 first (20 minutes), then Task 2 (40 minutes). Completing Task 2 first risks insufficient time for Task 1, which is penalised as an incomplete response.
How do I write about a process diagram without specialist knowledge?
Process diagrams test language, not subject knowledge. Focus on: passive voice ("raw water is filtered through"), sequencing language ("subsequently", "at the following stage", "finally"), and an overview stating how many stages the process has and what it produces or achieves.