Why an Underwater Welder Salary Can Sit Well Above the National Line
If you’re looking at an underwater welder salary, you’ll quickly notice that the figure can vary dramatically depending on whether the work is inshore or offshore. Unlike many occupations where a single national average gives a fair benchmark, underwater welding is governed by a specific industrial award that builds in extra payments for the demanding nature of the job. This means the pay can sit far above the national full-time average of $2,083.70 per week ($108,352 per year) reported by the ABS in its Average Weekly Earnings survey for May 2026.
The Award That Sets the Floor
The Professional Diving Industry Award 2020 (MA000108) is the legally binding minimum for most underwater welders, who are classified as Hyperbaric Welders under the award. The award distinguishes between inshore and offshore work, and the difference in minimum pay is substantial.
For inshore hyperbaric welders, the minimum weekly rate for a full-time employee is $1,406.50, or $37.01 per hour. That’s below the national full-time average, but inshore work often involves shorter projects and less extreme conditions.
For offshore hyperbaric welders, the award prescribes a total weekly rate that includes an aggregate factor of 116% on top of the minimum weekly rate. The total weekly rate is $2,878.63, which equates to $75.75 per hour. This rate is designed to cover the various rosters, overtime, penalties, and the nature of offshore work. At 38 ordinary hours per week, that works out to about $149,689 per year – well above the national average.
How the National Average Compares
The ABS Average Weekly Earnings figure of $2,083.70 per week (seasonally adjusted, full-time adult ordinary time) is a useful line in the sand. It represents the typical earnings across all industries and occupations. For an offshore hyperbaric welder, the award minimum is about 38% higher. Even the inshore rate, while lower, is still above the national minimum wage of $1,004.90 per week ($52,255 per year) set by Fair Work from 1 July 2026.
It’s important to note that the award rates are minimums. Many underwater welders with experience or working on complex projects may earn more. However, there is no published median for this occupation, so the award is the only reliable public benchmark.
State Differences Also Matter
Even within the same award, where you work can affect your take-home pay because of state-based tax rates and cost of living. The national full-time average itself varies by state. For example, the ACT has the highest state average at $119,090 per year, while Tasmania is the lowest at $96,008. An offshore hyperbaric welder based in Western Australia (state average $115,825) might find their award pay stacks up differently against local earnings than one based in Tasmania.
Place a salary on the line to see how any figure compares to the national average, or explore How the figures are set for more on the methodology behind the ABS and Fair Work data.
Tax and Take-Home Pay
For the 2026–27 income year, the tax-free threshold is $18,200, with marginal rates of 15% up to $45,000, 30% to $135,000, 37% to $190,000, and 45% above that. The Medicare levy of 2% applies before any reductions. An offshore hyperbaric welder earning $149,689 would fall into the 30% bracket (plus Medicare), so the effective tax rate is moderate. Inshore welders earning around $73,138 per year ($1,406.50 × 52) would be in the 30% bracket as well, but with a lower overall tax bill.
What the Data Doesn’t Tell You
The ABS does not publish a median weekly earnings figure for underwater welders at the six-digit ANZSCO level. The Jobs and Skills Australia profile for Welders (First Class) also shows median earnings as not available. This means the award minimums are the only authoritative numbers you can rely on without commissioning a custom survey.
For a broader view of how different occupations stack up, see the Job medians page, which includes medians for many roles from the ABS Employee Earnings and Hours survey (August 2025). The all-employees median is $74,100 per year, and the full-time median is $90,532.
Key Takeaways
- Underwater welder salary is set by the Professional Diving Industry Award.
- Offshore hyperbaric welders have a minimum total weekly rate of $2,878.63 ($149,689/year), well above the national full-time average.
- Inshore hyperbaric welders earn a minimum of $1,406.50 per week ($73,138/year), below the national average but above the minimum wage.
- No median earnings are published for this specific occupation.
- State averages and tax brackets affect real take-home pay.
If you’re considering a career in underwater welding, the award provides a clear floor, but actual earnings can vary with experience, project type, and location. Use the States and territories page to see how your state’s average compares, and remember that the national line is just one reference point.