CU 42240 — Structural steel erection services
ACC files this unit under Construction, in the group “Building Structure Services”, in levy risk group 328.
The work this unit covers
- Metal silo erection
- Metal storage tank erection
- Reinforcing steel erection
- Structural steel erection
- Truss or joist, steel, erection
- Welding work on construction projects
Levy rate, 2026-27
| Employer / self-employed (CoverPlus) | $2.25 per $100 of liable earnings |
|---|---|
| Experience Rating programme rate | $2.412 |
| CoverPlus Extra (standard) | $3.05 |
| CoverPlus Extra (lower weekly compensation) | $2.92 |
| At the 2026-27 maximum liable income ($156,641) | $3,524 a year |
Per $100 of liable earnings, GST-exclusive, as ACC publishes them; the Working Safer and Earners' levies are separate flat levies and are not included.
Rate history
| Levy year | Rate per $100 | Change |
|---|---|---|
| 2024-25 | $2.16 | — |
| 2025-26 | $2.31 | +$0.15 |
| 2026-27 | $2.25 | −$0.06 |
Commonly confused with
CU 27410 — Structural steel fabricating
Erection is the on-site half: putting up structural steel, reinforcing steel, silos, storage tanks, trusses and joists, and welding on construction projects. Fabricating is the workshop half — making girders, joists, prefabricated sections and welded mesh. ACC rates the two differently.
$2.25 against $1.48: $0.77 apart, CU 42240 dearer , $1,206 a year at the ceiling.
CU 42210 — Concreting services
Concreting covers concrete cutting, foundations, footpaths, kerbs and guttering. Structural steel erection puts up the steel frame. On a site where both happen, they remain separate units of work.
$2.25 against $1.76: $0.49 apart, CU 42240 dearer , $768 a year at the ceiling.
CU 42595 — Construction services and property developers
Erecting structural steel is doing the work. Construction services covers a business that subcontracts the trades out and coordinates the job instead.
$2.25 against $0.4: $1.85 apart, CU 42240 dearer , $2,898 a year at the ceiling.
Also in risk group 328
- CU 42230 — Roofing services · $2.25
BIC codes that map here
ACC assessors work from Business Industry Classification codes. These are the codes that land on CU 42240:
| E322405 | Steel fixing services |
|---|---|
| E322410 | Storage tank erection – metal |
| E322420 | Structural steel erection |
| E322430 | Welding work on construction projects |
Changing a BIC code takes two agencies, not one.
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Run the ACC levy checkSource: ACC Levy Guidebook 2026-27. Extracted 2026-08-06. Maximum liable income from ACC — calculate your levies. All 537 classification units.