1. Why 0.5 of a band can decide your invitation

Express Entry's skill-transferability factors pay up to 50 points for "education + first-official-language proficiency" and up to 50 more for "foreign work experience + language proficiency" — and both max out only at CLB 9 in all four abilities (IELTS GT: Listening 8.0, Reading 7.0, Writing 7.0, Speaking 7.0 — the "8777").

Example: a candidate with CLB 8 in one ability and CLB 9 in the other three gets partial language transferability points. Crossing that one ability to CLB 9 can add 25 points per sub-factor, up to 50 combined — for one 0.5-band lift in one skill. That is a better return than most people get from a second degree or another year of work experience.

2. The rounding rule that decides your re-test target

Your overall IELTS band is the average of the four abilities, rounded to the nearest half band:

  • 6.25 → 6.5, 6.75 → 7.0, 7.25 → 7.5, 7.75 → 8.0

This means a single ability lifted by 0.5 can flip your overall band if you sit near a rounding boundary — and each ability's own score is what the CLB conversion reads. Always check your Test Report Form per-skill: the retake decision is made per ability, not on the overall number.

3. The retake decision rule

Retake only if ALL three are true: 1. The gap is ≤ 0.5 band in one or two abilities. A 1.5-band gap across three skills is not a retake — it's a prep problem. Re-sit after proper study, not sooner. 2. You know the points delta. Look up exactly how many CRS points that 0.5 buys (CLB 8→9 with a degree, or CLB 7→8 for the first-official-language factor). If it buys fewer than ~10 points, the money and risk probably aren't worth it. 3. You can name the mechanical fix. Not "study harder" — a concrete, drillable cause: running out of time in Reading Section 3, hedging every Speaking answer into band-6 territory, no overview in Task 1. If you can't name it, you can't fix it in 4 weeks.

4. The 4–6 week retake drill plan

  • Week 1: autopsy. Re-read your score descriptors against your memory of test day. 80% of retakers improve on the same one or two mechanical issues identified here.
  • Weeks 2–4: single-skill block. Train ONLY the gap abilities — alternating days if there are two. Full timed mocks every Saturday to keep the other skills warm.
  • Week 5 (if booked at 6): taper. No new techniques; timed practice at exam pace only.
  • Skip general vocabulary lists. Retake prep is error elimination, not knowledge building.

5. The cost math

A General Training sitting in Canada costs roughly CA$300 (check current fees before booking). That is ~CA$300 for up to 50 CRS points — about CA$6–12 per point. Compare that with any other points-earning option: an extra year of skilled work buys fewer points per dollar and costs a year. When the gap is small and mechanical, the re-test is the highest-ROI move in Express Entry. When the gap is large or unidentified, it is the most expensive way to learn nothing.

6. Honest caveats

  • This math assumes the rest of your profile stays constant; verify your full CRS breakdown before booking.
  • Scores on this site are practice estimates, not predictions of official results.
  • A retake can also score lower. The decision rule above is the entire risk control.