Crafting the Perfect IELTS Writing Task 2 Argument

IELTS Writing Task 2 is the essay portion of the Writing section — worth double the marks of Task 1 and assessed on four equally weighted criteria: Task Response, Coherence & Cohesion, Lexical Resource, and Grammatical Range & Accuracy. You have 60 minutes total for both tasks, so most test-takers allocate roughly 40 minutes here.

What separates a Band 6 essay from a Band 7 or 8 is not vocabulary size or grammar perfection alone. It is the quality of the argument itself — how clearly you take a position, how well you support it, and how honestly you engage with the opposing view. This post walks you through exactly how to do that.

Understand What "Task Response" Actually Demands

The first criterion — Task Response — is the one most candidates underestimate. The official descriptor for Band 7 says the candidate "addresses all parts of the task" and "presents a clear position throughout." Band 6 drops to "addresses all parts of the task although some parts may be more fully covered than others."

That gap is significant. A common mistake is writing a lot without actually answering the question. IELTS Task 2 prompts come in several types — opinion essays, discussion essays, problem-solution essays, and two-part question essays. Each type has a different implicit contract with the examiner.

For an opinion essay ("To what extent do you agree or disagree?"), the examiner expects you to commit to a position clearly in the introduction and maintain it throughout. Hedging your way through the entire essay — "on one hand... on the other hand... it is difficult to say" — without ever landing on a view will cost you marks on Task Response.

For a discussion essay ("Discuss both views and give your own opinion"), you are expected to present both sides and state your own view. Omitting the personal opinion is a partial answer, which pulls your Task Response score down.

Know the question type before you write a single word of your essay.

Build Your Argument Around a Clear Thesis

Every strong Task 2 essay has a thesis — a sentence in the introduction that tells the examiner exactly what you think and, ideally, why. This is not optional; it is the backbone of Task Response.

A weak thesis restates the question:

"This essay will discuss whether governments should invest in public transport."

A strong thesis takes a position and signals the reasoning:

"While private vehicle ownership offers convenience, governments should prioritise public transport investment because it addresses congestion and environmental damage at a systemic level."

Notice that the strong version does two things: it acknowledges the opposing side briefly ("while private vehicle ownership offers convenience") and it commits to a clear stance with a reason. This sets up the entire essay and makes it easy for the examiner to track your argument.

Structure Your Body Paragraphs with PEEL

Each body paragraph should do one job well. The PEEL structure — Point, Evidence, Explanation, Link — is a reliable way to ensure every paragraph actually develops an argument rather than just listing ideas.

• Point: State the claim of this paragraph clearly in the first sentence.
• Evidence: Support it with a reason, example, or data. You do not need real statistics — plausible, logical examples work perfectly.
• Explanation: Explain why the evidence supports your point. This is the step most candidates skip, and skipping it is exactly what keeps essays at Band 6.
• Link: Connect back to your thesis or signal the next paragraph.

Here is how this looks in practice for the public transport argument:

"Investing in public transport reduces urban congestion in ways that individual car ownership cannot. When a city expands its metro or bus network, a single vehicle can carry hundreds of passengers who might otherwise each drive separately, removing a proportionate number of cars from the road. Without this systemic approach, encouraging car ownership simply transfers the congestion problem rather than solving it. This is why infrastructure-level investment is more effective than individual-level incentives."

The explanation sentence — "Without this systemic approach..." — is what lifts this paragraph above a simple assertion.

How to Present a Balanced Viewpoint Without Losing Your Position

A common fear among test-takers is that acknowledging the other side will weaken their argument. In academic writing, the opposite is true. Engaging with a counterargument and then refuting it actually strengthens your position because it shows you have considered the full picture.

The key is to present the concession honestly, then pivot with a rebuttal that explains why your position still holds.

A weak concession just lists the opposing view and moves on:

"Some people think private cars are more convenient. However, public transport is better."

A strong concession engages with the logic of the opposing view before dismantling it:

"Proponents of private vehicle use argue that cars offer door-to-door flexibility that public transport cannot replicate, particularly in rural or suburban areas where routes are sparse. This is a legitimate concern. However, the solution is not to abandon public investment but to design smarter networks — integrating buses, bike-sharing, and rail — that extend reach without requiring private vehicles as the default."

This approach scores well on Task Response (you addressed the opposing view) and on Coherence & Cohesion (your argument flows logically rather than just asserting).

Coherence & Cohesion: Signposting Is Not Just Linking Words

Many candidates treat Coherence & Cohesion as a checklist of linking words: "Furthermore," "In addition," "On the other hand." The official Band descriptors go much further. Band 7 requires that cohesive devices are used "flexibly" and that paragraphing is "sufficient and appropriate."

Flexibility means varying how you connect ideas — not just prepending a connector to every sentence. You can signal contrast by restructuring a sentence, not just by writing "However":

"Public transport reduces emissions. Private cars, by contrast, account for nearly a fifth of urban carbon output in many developed countries."

You can signal cause-and-effect through verb choice rather than a connector:

"Congestion pricing drives commuters toward public alternatives."

Paragraphing itself is a cohesion tool. Each paragraph should have one central idea, and the order of paragraphs should feel logical — not arbitrary. If your essay argues that public transport is better because of environmental and economic reasons, put the stronger argument last, not first. Readers (and examiners) remember endings.

Lexical Resource: Precision Beats Complexity

The Lexical Resource criterion rewards precision and range, not the longest words you know. The Band 7 descriptor asks for "sufficient range of vocabulary to allow some flexibility and precision" and "less common lexical items" used with "awareness of style and collocation."

Collocation is the practical target here. Using words that naturally go together signals a sophisticated command of English:

a marked increase in ridership

address a systemic problem

pose a significant challenge to urban planners

These are not rare words. They are common words used in the right combinations. Avoid forcing in complex vocabulary where simpler, precise language is more natural — examiners are trained to spot words that are technically correct but contextually awkward.

Also, vary your vocabulary across the essay. If you use "government" in paragraph two, use "authorities" or "policymakers" in paragraph three. This is not just about avoiding repetition — it demonstrates range.

Grammatical Range & Accuracy: Complexity With Control

Band 7 in Grammatical Range & Accuracy requires "a variety of complex structures" with "frequent error-free sentences." Band 8 ups this to "a wide range" with only "occasional errors."

The practical implication: do not write exclusively in simple sentences to avoid errors. Examiners are looking for evidence that you can handle complex grammar and control it. Mix sentence types deliberately.

A simple sentence for clarity:

"Public transport reduces emissions."

A complex sentence to show range:

"Because urban populations continue to grow, any city that fails to invest in scalable public transport infrastructure will face increasingly severe congestion and pollution crises within the next two decades."

If you are unsure about a grammatical structure, do not use it mid-argument where an error could confuse meaning. Use complex structures in supporting sentences where a mistake is less likely to derail the logic.

The Introduction and Conclusion: Short, Sharp, Functional

Your introduction needs two things: a paraphrase of the prompt and your thesis. That is it. Do not spend 100 words on background context — you have 250 words minimum to fill with actual argument.

Your conclusion should restate your position and summarise your main reasons without introducing new ideas. The examiner is checking that your position is consistent from start to finish. A conclusion that suddenly hedges — "Overall, both sides have merit" — after three paragraphs of strong argument creates an incoherent essay.

"In conclusion, while private vehicles offer individual flexibility, the systemic benefits of public transport investment — reduced congestion, lower emissions, and greater urban equity — make it the more rational priority for governments with limited infrastructure budgets."

This conclusion mirrors the thesis, references the body arguments, and closes with a clear stance. Clean and effective.

One Final Thought on Timing

Allocate your 40 minutes deliberately: 3–5 minutes planning (thesis, paragraph structure, key vocabulary), 30 minutes writing, 5 minutes reviewing for errors. The planning phase is where your argument is won or lost. A well-planned essay with a clear thesis and logical paragraph order will almost always outscore a longer essay written without a plan.

Task 2 rewards structured thinking expressed in accurate, varied English. Get the argument right first — the language will follow more naturally than you expect.