OET Writing Retake Guide
Yes — you can retake only the Writing sub-test if you scored Grade C+ (300) or above, keeping your other scores through score combining. A single sub-test costs around USD 165, versus roughly USD 587 for a full sitting. Below: the combining rules by regulator, the eligibility and single-sitting caveats, why candidates fail Writing, and the four-to-eight-week plan that turns the resit into a pass.
Key takeaways
- You can retake just Writing. OET allows single sub-test retakes (~AUD/USD 165) — far cheaper than a full sitting (~AUD/USD 587).
- Score combining is accepted by the NMC, GMC, GPhC (6-month window) and AHPRA, MCNZ (12-month window).
- Wait 4–8 weeks before retaking. Booking too early almost always produces the same result.
- Five recurring failure patterns account for almost every Grade C result — and language ability is rarely one of them.
- Three to five corrected letters typically reveal the patterns blocking Grade B that are otherwise invisible to the writer.
Score Combining Rules by Regulator
Most regulators accept combined OET results across two sittings, which means you can retake only Writing and keep your other scores. The combining window varies by regulator.
Always confirm the current rules with your specific regulator. Combining requires every sub-test (across both sittings) to reach Grade B (350+).
Why Candidates Fail OET Writing — and What to Fix
Across 11,000+ corrected letters since 2014, the patterns are remarkably consistent. Almost no one fails Writing because of language ability. The five issues below account for the overwhelming majority of Grade C results.
Case-note over-inclusion
Including everything in the case notes rather than only what the recipient needs. Damages Content, Conciseness, and Organisation simultaneously. The fix: highlight what's relevant before writing — and accept that 'irrelevant' is a deliberate choice.
Missing or unclear purpose
Opening with patient demographics or clinical history rather than 'I am writing to refer/inform/request...'. The fix: every letter opens with action verb + patient + age + reason for writing. Always.
Register inconsistency
Starting formally and drifting into clinical shorthand or conversational phrasing. One informal paragraph in an otherwise formal letter pulls Genre & Style down by a full band. The fix: read your letter back as a whole, listening for tone shifts.
Bullet-listing case notes
Reproducing case notes as a list rather than weaving them into clinical prose. Examiners cannot reward Content or Organisation if the candidate hasn't actually composed a letter. The fix: paraphrase. Even strong terminology should sit in your own sentence structure.
Casual closings
'Thanks for your help' or 'Hope this is OK' — SMS register at the end of an otherwise formal letter. The fix: closing with a specific clinical action ('I would appreciate your assessment for consideration of joint replacement') keeps register consistent and earns Purpose marks.
The 4–8 Week Retake Plan
Most candidates moving from Grade C to Grade B see measurable improvement within 4–8 weeks of focused practice with feedback. The bottleneck is feedback quality, not practice volume.
Diagnose
Submit one letter for professional correction. Detailed feedback reveals which of the six criteria are blocking your Grade B — almost always one or two specific patterns, not all six.
Target the gap
Write 3–5 letters focused on the specific weakness. If your gap is case-note selection, every practice letter tests that one skill until it becomes automatic.
Generalise
Practise across all four letter types (referral, discharge, transfer, advice) and across multiple case scenarios. Submit at least one letter per letter type for correction.
Confirm under exam conditions
Sit two final letters under timed conditions and have them corrected. If both score Grade B, you are exam-ready. If one drops, the gap is timing or stamina, not skill.
The single biggest mistake on retake
Booking the retake too soon and writing more letters without expert correction. This produces the same result twice. The candidates who pass the second sitting almost always credit a small number of professionally corrected letters — typically three to five — for revealing the patterns that previously felt invisible.
View correction packagesRelated Guides
How to Get Grade B in OET Writing
Six-criteria breakdown and the four reasons most candidates miss Grade B.
4 Annotated Letter Samples
Three Grade B letters and one Grade C diagnostic letter — see exactly what separates them.
NMC OET Requirements
UK nurses — score combining, validity, exemptions.
AHPRA OET Requirements
Australian healthcare professionals — 12-month combining window in detail.
GMC English Requirements
UK doctors — OET vs IELTS 7.5 comparison.
OET Case Notes Practice
Three sample case-notes blocks plus the AI Case Note Generator.