IELTS pie chart Task 1: proportion language, Band 9

A pie chart looks like the friendliest figure in Academic Writing Task 1. Everything is a percentage, the segments are already sorted by size, and there is no axis to misread. Then the reports come back at Band 6, usually for the same two reasons: the writer lists all seven segments in order like a shopping list, and the language never moves past "X was 25%."

This is a guide to the pie chart specifically: what the overview has to name, the proportion language that carries your Lexical Resource mark, how the task changes when there are two pies instead of one, and a Band 9 model with the reasons it scores. It sits under the Writing Task 1 guide and the seven chart types; here we go deep on this one.

One pie or two: check before you plan

The first decision costs nothing and changes the whole report.

A single pie is a snapshot. Nothing moves, so there is no trend to describe. You are comparing the sizes of segments against each other at one moment, which makes this a comparison task like a static bar chart. The overview names the largest and smallest segment and any striking split.

Two or more pies almost always show the same categories at different dates, and that changes the job. Now the story is what shifted between them. The overview names the direction of the biggest changes rather than only the sizes, and the body pairs each category across the two charts rather than describing one pie fully and then the other. That pairing is the single most common structural fix I would make to a Band 6 two-pie report: it reads as one comparison instead of two separate descriptions.

Tense follows the same check. A pie labelled with a past year is past simple. An undated pie describing a general situation is present simple. Two pies across a finished period are past simple throughout, with the change expressed by the verb ("rose from 12% to 28%").

What a pie chart overview must name

Write it or accept a Band 5. The Academic Task Achievement descriptor first mentions an overview at Band 6, "a relevant overview is attempted," and Band 5 describes the report without one, "there may be a tendency to focus on details" instead of the bigger picture. One or two sentences, opening with "Overall," and no specific figures.

For a single pie, the overview names which segment dominates and which is marginal. For two pies, it names what changed most and in which direction. Something like: "Overall, housing remained the largest single expense in both years and grew its share further, while the proportion spent on food fell sharply and the other categories changed comparatively little." No numbers, and yet an examiner reading only that sentence knows the shape of the data. That is the Band 6 checkpoint cleared in one line.

Proportion language is where the marks are

A pie chart is made of proportions, so the vocabulary you use for proportions is doing most of the work on Lexical Resource. Writing "was 25%" seven times is the flat version. There are three ways to say the same fact, and mixing them is what shows range.

Verbs of proportion: accounted for, made up, comprised, represented, constituted. "Rent accounted for 32% of spending."

Fractions and approximations: a quarter, a third, half, two-thirds, three-quarters, just over, just under, nearly, roughly. "Rent made up just under a third of spending." Fractions are the move most candidates skip, and they read as more fluent than a bare percentage repeated.

Comparative proportion: twice as large a share as, half the proportion of, the largest share, the smallest proportion. "Housing took twice the share that transport did."

For two pies, add change language on top: rose from 18% to 25%, fell by 7 percentage points, more than doubled, remained unchanged at 15%. One precision note that separates careful writers: a move from 18% to 25% is a rise of 7 percentage points, not 7 percent. Writing "rose by 7%" is a different claim (7% of 18 is about 1.3 points). Examiners are not marking your statistics, but the phrase "percentage points" is accurate and reads as controlled use of language, which is exactly what Grammatical Range and Accuracy and Lexical Resource reward.

Group the small segments

The Band 8 Task Achievement line is "key features are skilfully selected," and on a pie chart selection means deciding what not to write about.

A chart with seven segments does not want seven sentences. Take the two or three that carry the story and give them detail, then handle the rest together: "the remaining four categories each accounted for under 8%." That single clause disposes of half the chart accurately, costs you eleven words, and demonstrates the selection the descriptor asks for. A report that walks through every segment in descending order has selected nothing, which is what the Band 5 "focus on details" line describes.

One accuracy check while you group: the segments of a single pie sum to 100%. If your figures add to 94% or 108%, you have misread the chart, and an examiner who notices sees a data error rather than a rounding quirk.

The four paragraphs

• Introduction. One sentence. Paraphrase the chart's title, with what is measured, the units (percentages), and the categories or years. Do not copy the prompt; a copied sentence earns nothing toward your count.
• Overview. One or two sentences, starting "Overall," naming the dominant segment and the standout feature or change. No figures.
• Body paragraph one. The largest segments, or for two pies the categories that changed most, with supporting percentages.
• Body paragraph two. The rest, with the small segments grouped.

Aim for 150 to 190 words in about 20 minutes, because Task 2 carries twice the weight and needs the other 40.

Task Achievement, band by band

At Band 7, the Academic response "presents a clear overview, the data are appropriately categorised, and main trends or differences are identified": overview present, segments grouped sensibly, the key comparisons named. At Band 6, only "a relevant overview is attempted," and the categorisation is looser. At Band 5, "there may be a tendency to focus on details" with no bigger picture, which is the segment-by-segment list. The distance from 5 to 7 is the overview and the grouping, not the vocabulary, though the vocabulary is what then separates 7 from 8.

A Band 9 model, and why it works

Take a common prompt: "The pie charts below show the proportion of household spending by category in one country in 2000 and 2020."

The two pie charts compare how household spending in one country was divided among five categories in 2000 and in 2020, with all figures given as percentages.

Overall, housing remained the single largest area of expenditure in both years and grew its share further, while the proportion spent on food fell sharply. The remaining categories changed comparatively little.

Housing was already dominant in 2000, accounting for 30% of spending, and by 2020 it had risen to 38%, close to two-fifths of the total. Food moved in the opposite direction, falling from 25% to 16%, a drop of nine percentage points and the largest decline on either chart. Together these two categories made up more than half of all spending in both years.

The other three categories shifted far less. Transport edged up from 15% to 17%, while clothing slipped from 18% to 17%, leaving the two level by 2020. Leisure was the smallest category in both years, unchanged at 12%.

Read what the report does. The introduction paraphrases rather than copies. The overview names the dominant category, the biggest change and its direction, with no figures at all. Body one pairs the two categories that carry the story across both years, so the comparison is built in rather than left to the reader. Body two handles the three quieter categories briefly and closes on a genuine observation (transport and clothing converging), which is selection rather than listing. The proportion language varies: accounted for, rose to, two-fifths, made up, unchanged at, and "nine percentage points" used correctly. Both years' figures sum to 100%. Around 160 words, past simple throughout.

The mistakes that cap you

The segment-by-segment list is the most common: seven sentences in descending order, no grouping, no overview, which the "focus on details" line marks down. Missing the overview entirely is the Band 5 trap already covered. A subtler one is handling two pies in separate paragraphs, one chart each, because that hides the very comparison the task was built around. Then there is the vocabulary problem: if every segment gets "was X%", none of the proportion language ever appears, and Lexical Resource has nothing to reward. Finally, check your arithmetic. Figures that do not sum to 100% on a single pie read as a misread chart.

None of these is a grammar failure. They are decided while you plan, which is why the coherence and cohesion of a pie chart report comes from its grouping more than its linking words.

Drill it in five minutes

• The overview drill. Take one pie chart and write only the overview: two sentences, no figures, naming the dominant segment and the standout change. If you cannot do it without numbers, you are reading detail rather than shape.
• The three-ways drill. Take one segment and write it three ways: "accounted for 32%", "made up just under a third", "took twice the share of transport". Rotating those three forms across a report is most of your Lexical Resource mark on this task.
• The grouping drill. For a seven-segment chart, mark the two you will develop and write the one clause that disposes of the rest.

That's the idea behind IELTS Drills. Feedback comes back tagged to a single Band Descriptor, so when a Task 1 report lands at 6.5 you can see whether the half-band went on a missing overview, a listed set of segments, or thin proportion language, and drill that one in five minutes a day.

Frequently asked questions

How do I write an IELTS pie chart answer? Four paragraphs: a paraphrased introduction, an overview with no figures, and two body paragraphs that group segments rather than list them. Check first whether you have one pie (a comparison) or two (a change over time).

What vocabulary should I use for a pie chart? Rotate three families: proportion verbs (accounted for, made up, comprised), fractions and approximations (just under a third, two-fifths, roughly half), and comparative proportion (twice the share of, the smallest proportion). Repeating "was X%" is what holds Lexical Resource down.

Do I have to describe every segment? No, and doing so works against you. Develop the two or three that carry the story and group the rest in one clause, which is the "key features are skilfully selected" the higher bands reward.

What tense for a pie chart? Past simple for a stated past year or a finished period across two charts; present simple for an undated, general picture.

How do I handle two pie charts? Pair each category across both charts instead of describing one pie then the other, and let the overview name what changed most and in which direction.

Percent or percentage points? A move from 18% to 25% is a rise of seven percentage points. "Rose by 7%" means something different and smaller. Using the right one is a cheap accuracy win.

The bottom line

A pie chart rewards two decisions made before you write: whether you are describing one snapshot or a change between two, and which two or three segments actually carry the story. Get those right, add an overview with no figures, group the small segments into a single clause, and rotate proportion verbs with fractions instead of repeating percentages. For the other chart types and how each changes the overview, the chart-types guide has the map, alongside the line graph, bar chart, map, process diagram, table and combination deep dives. With IELTS Drills, the feedback tells you which axis is still costing you the 0.5, five minutes a day.