IELTS Academic Guides

IELTS Academic Writing Task 1: structure and language

By PreparaioEditorial team & sourcesUpdated

Academic Writing Task 1 asks you to describe visual information — a line or bar chart, pie chart, table, process diagram, or map — in at least 150 words. You have 20 minutes and you are marked on Task Achievement, Coherence and Cohesion, Lexical Resource, and Grammatical Range and Accuracy.

Contents

What Task 1 really asks for

You are not asked for an opinion and not asked to explain why. You are asked to describe what the visual shows. The clearest response paraphrases the prompt in one sentence, gives an overview of the key features, and then supports that overview with grouped comparisons or ordered process steps.

A defensible four-paragraph structure

One sentence introduction (paraphrase the prompt), one overview paragraph (two or three key trends, no numbers), two body paragraphs (grouped detail with specific numbers or stages). This structure works for every visual type.

  • Intro — paraphrase the visual and time frame.
  • Overview — 2 to 3 sentences highlighting the biggest trends or most striking features.
  • Body 1 — one group of items or one half of a process.
  • Body 2 — the other group or the remainder of the process.

Maps and processes

For maps, describe changes between two states with prepositions of place (to the north of, adjacent to, replaced by) and passive verbs (was constructed, was demolished, has been converted). For processes, use sequencing (first, subsequently, finally) and passive voice (the mixture is heated, the product is packaged).

A realistic 20-minute plan

Two minutes to read and plan (identify the two or three key features). Fifteen minutes to write. Three minutes to edit — check word count, articles, verb tenses (past for historical data, present for general, future for projections).

Frequently asked questions

How strict is the 150-word minimum?

You lose marks below 150. Aim for 160 to 180 for a safety margin; going far above wastes time better spent on Task 2.

Should I include every number in the chart?

No. Choose representative data points that support the overview. Overloading the response with numbers reduces clarity.

Is the overview required?

Yes. An explicit overview is a scoring feature under Task Achievement — its absence caps the band.

Sources & currency

Exam version
IELTS Academic, as of 2026
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2026-07-31

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The hard exam facts in this article were verified against the official primary sources linked below on the date shown. This is not a review by an examination body and does not replace information from your test centre. Fees, dates and local procedures are set by the test centres themselves.

Official primary sources

  • IELTS Academic format – WritingIELTS Partners (British Council, IDP, Cambridge) · ielts.org · official primary source · checked on
  • IELTS scoring in detailIELTS Partners (British Council, IDP, Cambridge) · ielts.org · official primary source · checked on

More on IELTS Academic

Guides to the IELTS Academic exam: format, band descriptors, Reading and Listening strategy, Writing Task 1/2, Speaking Parts 1–3, and study plans.

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