IELTS Writing Band Descriptors Explained Simply

The IELTS writing band descriptors are the official scoring rubric that every examiner uses to assess your essay. They are publicly available on the IELTS website. And yet, most candidates have never read them — or if they have, they found them confusing.

That is a problem, because the band descriptors are not mysterious. They are a checklist. If you know exactly what the examiner is looking for at each band level, you can target your practice to hit those benchmarks. If you do not know, you are guessing.

This guide translates the official band descriptors into plain English for all four criteria at Bands 5, 6, 7, and 8. No jargon. No ambiguity. Just a clear explanation of what each score means and what you need to do to reach it.

How IELTS Writing Is Scored

Your essay is assessed on four criteria, each worth 25% of your Writing score:

1. Task Achievement (Task 2) / Task Response (Task 1)
2. Coherence & Cohesion
3. Lexical Resource
4. Grammatical Range and Accuracy

Each criterion is scored independently from Band 0 to Band 9. Your overall Writing score is the average of the four, rounded to the nearest half band.

This means you can score differently on each criterion. For example, you might get 7.0 for Coherence & Cohesion but 6.0 for Lexical Resource. Your overall score would be influenced by both.

It also means that improving one criterion from 6.0 to 7.0 only raises your overall score by 0.25 (before rounding). To make a full-band improvement, you typically need to improve across multiple criteria.

Criterion 1: Task Achievement

Task Achievement measures whether you actually answered the question, how well you developed your ideas, and whether your position is clear.

Band 5

• Addresses the task only partially
• Position is not always clear
• Main ideas are limited and may lack development
• There may be irrelevant detail

In plain English: You wrote about the topic, but you did not fully answer the question. Your opinion is unclear or inconsistent. Your ideas are present but thin.

Band 6

• Addresses all parts of the task, though some may be less developed
• Presents a relevant position, but conclusions may be unclear
• Presents relevant main ideas but some are inadequately developed

In plain English: You answered the question and stated your opinion. Your ideas are relevant but not fully developed. You explained what you think but not always why.

Band 7

• Addresses all parts of the task
• Presents a clear position throughout
• Presents, extends, and supports main ideas
• May over-generalise or lack focus in places

In plain English: You answered the question completely and your position is clear from start to finish. Each main idea is developed with reasoning and evidence. Minor weaknesses in focus are acceptable.

Band 8

• Sufficiently addresses all parts of the task
• Presents a well-developed response with relevant, extended, and supported ideas

In plain English: Your response is thorough and convincing. Every idea is fully developed with clear reasoning and strong evidence. The essay feels complete and purposeful.

Biggest myth: "I need to have a strong opinion to score well." Not true. You can partially agree, see merit in both sides, or propose a middle ground — as long as your position is clear and consistent. Vague hedging is the problem, not balanced views.

For a focused guide on this criterion, read how to develop a strong IELTS argument.

Criterion 2: Coherence & Cohesion

Coherence & Cohesion measures how well your ideas are organised and connected. Coherence is about logical flow. Cohesion is about the language that links sentences and paragraphs.

Band 5

• Information is organised but lacks overall progression
• Inadequate or overuse of cohesive devices
• May not write in paragraphs, or paragraphing is not logical

In plain English: Your essay has some structure but it is hard to follow. You either use too many linking words or too few. Your paragraphing is inconsistent.

Band 6

• Arranges information coherently with clear progression
• Uses cohesive devices effectively, but cohesion may be faulty or mechanical
• May not always use referencing clearly

In plain English: Your essay is organised and has a recognisable structure. You use linking words, but sometimes they feel forced or are used incorrectly. Some sentences do not connect smoothly.

Band 7

• Logically organises information and ideas
• Uses a range of cohesive devices appropriately
• Presents a clear central topic within each paragraph

In plain English: Your ideas flow logically from one to the next. You use linking words, reference words, and logical connections flexibly. Each paragraph has one clear topic.

Band 8

• Sequences information and ideas logically
• Manages all aspects of cohesion well
• Uses paragraphing sufficiently and appropriately

In plain English: Your essay reads effortlessly. Ideas are sequenced perfectly, transitions are smooth, and every paragraph serves a clear purpose.

Biggest myth: "More linking words = higher score." Wrong. The Band 7 descriptor says "appropriately," and Band 5 specifically penalises "overuse." Three well-placed connectors beat ten mechanical ones.

For a complete breakdown, see Coherence & Cohesion: what examiners look for.

Criterion 3: Lexical Resource

Lexical Resource measures your vocabulary range, precision, and ability to paraphrase. It is NOT about using the biggest words you know.

Band 5

• Limited range of vocabulary
• May make noticeable errors in spelling and word formation
• Errors may cause difficulty for the reader

In plain English: You use basic vocabulary that sometimes does not fit the context. Spelling and word-choice errors are frequent enough to be distracting.

Band 6

• Adequate range for the task
• Attempts less common vocabulary but with some inaccuracy
• Errors in spelling and word formation do not impede communication

In plain English: You have enough vocabulary to discuss the topic. You try to use some less common words but sometimes get them wrong. Your mistakes do not stop the reader from understanding you.

Band 7

• Sufficient range to allow flexibility and precision
• Uses less common lexical items with some awareness of style and collocation
• May produce occasional errors in word choice or spelling

In plain English: You choose words that are precise for the context. You use some sophisticated vocabulary naturally — not forced. You understand which words go together (collocations). Occasional errors are fine.

Band 8

• Wide range of vocabulary fluently and flexibly
• Skilfully uses uncommon lexical items
• Rare errors in spelling or word formation

In plain English: You write with the vocabulary of an educated native speaker. Word choice is natural, precise, and varied. Errors are extremely rare.

Biggest myth: "I need big words to score high." Absolutely not. Using "plethora" incorrectly scores lower than using "many" correctly. Precision and natural usage matter more than word length. "Implement" is better than "do" not because it is longer, but because it is more precise.

For practical vocabulary strategies, see how to improve your IELTS lexical resource.

Criterion 4: Grammatical Range and Accuracy

This criterion measures the variety of sentence structures you use and how accurately you use them. Range and accuracy are weighted equally.

Band 5

• Uses only a limited range of structures
• Attempts complex sentences but with limited accuracy
• Frequent grammatical errors may cause difficulty

In plain English: Most of your sentences are simple (Subject + Verb + Object). When you try complex structures, they often have errors. Grammar mistakes are noticeable and sometimes confusing.

Band 6

• Uses a mix of simple and complex sentence forms
• Makes some errors but they rarely reduce communication

In plain English: You use some complex sentences alongside simple ones. You make errors but they do not stop the reader from understanding. Your grammar is safe but not ambitious.

Band 7

• Uses a variety of complex structures
• Produces frequent error-free sentences
• Good control of grammar and punctuation

In plain English: You confidently use different types of complex structures — relative clauses, conditionals, participle phrases, passive constructions. Most of your sentences are error-free. You take controlled risks.

Band 8

• Uses a wide range of structures
• The majority of sentences are error-free
• Only very occasional errors or inappropriacies

In plain English: Your grammar is near-flawless with a wide variety of structures used naturally. Errors are rare and minor.

Biggest myth: "I should avoid complex sentences to avoid errors." This is a Band 6 strategy. The examiner rewards range — the ability to use different structures. Playing it safe with only simple sentences caps your score. The goal is to attempt complex structures and get them right, not to avoid them entirely.

For the most impactful errors to fix, see common grammar mistakes in IELTS writing.

How the Criteria Interact

Understanding the criteria individually is important, but understanding how they interact is what separates strategic preparation from random practice.

Task Achievement and Coherence & Cohesion are closely linked. A well-developed argument (TA) naturally leads to better logical flow (CC). If your ideas are clear and well-supported, they almost organise themselves.

Lexical Resource and Grammatical Range work together. Precise vocabulary often appears in complex grammatical structures. "The government should allocate a larger proportion of the budget to healthcare" uses both precise vocabulary ("allocate," "proportion") and complex grammar (passive construction with infinitive).

The weakest criterion limits your overall score. If you have 7.0 in three criteria but 5.5 in one, your overall score will be pulled down significantly. Focus on bringing your weakest criterion up rather than pushing your strongest criterion higher.

Quick Reference: What Each Band Level Feels Like

Band	How the essay reads
5	"I can see the ideas but they are confusing and underdeveloped."
6	"I understand what you mean, but you could say it better."
7	"Clear, well-supported, and mostly precise. A few rough edges."
8	"This reads like a well-educated native speaker wrote it."

See Your Scores Across All 4 Criteria

Submit your essay and get a detailed band score for Task Achievement, Coherence & Cohesion, Lexical Resource, and Grammar — with specific feedback for each.

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