Short answer: Choose the One Skill Retake when exactly one skill fell short, your original test was computer-delivered, you are within 60 days, and your organisation accepts it.
Choose a full retake when two or more skills need to rise, your English has improved overall, or the retake is not an option (UKVI, paper-based, or outside the window).
If you have missed your target, the first decision is which kind of resit to take. This guide compares the two so you can choose with confidence. For the underlying rules, see our full One Skill Retake guide.
The core difference
A One Skill Retake (OSR) lets you resit a single skill — Listening, Reading, Writing, or Speaking — and combine that new score with your three original scores on a fresh Test Report Form. A full retake means sitting all four skills again from scratch.
The OSR is narrower and usually cheaper; the full retake is broader and gives every section a chance to move. Crucially, after an OSR your original TRF remains valid, so if the retake score is lower you simply keep using the original result.
When the One Skill Retake wins
The OSR is built for the classic near-miss: three skills comfortably at target and one half a band short.
In that situation it is the cheaper, lower-risk option — you protect three good scores instead of putting them back on the line, and you can pour all of your preparation into the single weak skill.
This profile is especially common among immigration candidates, because points systems in countries like Australia and Canada reward the minimum band, not the average, so one weak section caps the whole profile.
When a full retake is the better choice
A full retake makes more sense when more than one skill needs to rise, or when your English has genuinely improved since the last test and a fresh sitting could lift every section.
It is also the only option in several cases: for IELTS for UKVI (where the OSR is not available), for candidates whose original test was paper-based, and once the 60-day OSR window has closed.
A decision table
| Your situation | Better option |
|---|---|
| One skill 0.5 below target, other three at or above | One Skill Retake |
| Two or more skills below target | Full retake |
| Your English has clearly improved across all skills | Full retake |
| Score is for a UK visa (UKVI) | Full retake |
| Original test was paper-based | Full retake |
| More than 60 days since your test | Full retake |
| Receiving organisation does not accept the One Skill Retake | Full retake |
How to prepare, whichever you choose
Start by modelling exactly which section scores you need with our band score calculator, so the target is concrete. Then train the specific gaps: drill your weakest reading question types with AI reading practice and check real essays with the AI Writing Checker.
Whether you resit one skill or four, the winning approach is the same — diagnose the cause of the lost marks, train that cause, and verify the improvement before test day.