Every IELTS candidate knows the core numbers: 150 words for Writing Task 1 and 250 words for Writing Task 2. But what actually happens if you fall short, or if you write significantly more?
As a former examiner, I see widespread confusion about these limits. Let's break down the rules, the penalties, and the tactical "sweet spots" to maximize your band score.
What happens if I write 155 words on IELTS Writing Task 1?
The direct answer is: nothing bad. You are safe.
Writing 155 words on Task 1 is perfectly fine. In fact, it is in the ideal range. The rule states that you should write at least 150 words. Anything above 150 words will not receive a penalty for length. Writing 155 words means you have met the minimum requirement and likely presented a concise, well-structured summary without unnecessary padding.
Is there an official penalty for writing under 150 or 250 words?
Historically, examiners applied a direct "Underlength Penalty" which deducted marks from the Task Achievement (Task 1) or Task Response (Task 2) criteria. In recent years, while the explicit penalty structure has changed, the outcome remains the same: if you write under 150/250 words, you will lose marks.
Why? Because it is mathematically and linguistically very difficult to satisfy all descriptor criteria in fewer words. If you write 130 words for Task 1, you have likely omitted crucial data trends or failed to write a complete overview. If you write 220 words for Task 2, your arguments are likely underdeveloped. Consequently, your score for Task Achievement/Response will drop, capping your overall writing band.
The IELTS Writing "Sweet Spot"
You should aim for the following ranges to ensure full development without running out of time:
| Task | Official minimum | Target "sweet spot" |
|---|---|---|
| Writing Task 1 | 150 words | 160 – 190 words |
| Writing Task 2 | 250 words | 260 – 290 words |
Writing significantly more (e.g., 350+ words on Task 2) does not earn extra marks. Instead, it increases your chances of making grammatical mistakes, reduces coherence, and leaves you with no time to proofread. Focus on quality, structure, and error-free expression rather than sheer volume.
For official information on task response and band descriptors, consult the Official IELTS Writing Task 2 Descriptors or download the British Council Writing Practice Guide.