Australia's Ageing Problem and Why It Still Needs Skilled Workers From Abroad
News · 2026-09-25 · 4 min read
Every time Australia releases a big economic forecast, the migration argument flares up again. The newest Intergenerational Report is no different. But if you are a South African tradesperson or professional actually planning the move, the shouting matters far less than a quieter point hidden in the figures.
Migrant numbers hardly touch personal wealth
This is the bit most reports skipped. Take in 185,000 migrants a year or 285,000, and the economic share of the average Australian barely moves. Treasury's modelling puts the gap in GDP per capita by 2066 at roughly $400. In an economy producing about $150,000 a year per person, that is close to nothing. If the claim that migrants water down prosperity was going to appear anywhere in the data, it would have been here. It did not.
The real fight is over paying for an older country
Where the figures do shift is in Australia's ability to pay its own way. Fewer migrants make for a smaller economy overall, with national growth dropping from about 1.6% to 1.3%, and an older population ageing faster and carrying a heavier bill.
The old-age dependency ratio counts retirees for every 100 people of working age. It sits at about 27 now and is forecast to reach anywhere from 38 to 43 by 2066, depending on how migration is set. More migration does not stop the country getting older; Australia ages regardless. What it does is ease the pressure, because migrants tend to arrive in their working years and widen the tax base that pays for pensions, healthcare and the NDIS.
Politicians tend to step around this. The question is not really whether each Australian ends up richer or poorer with more or fewer arrivals. The question is who pays for a population that keeps getting older: today's workers through heavier taxes, migrants through their work and their taxes, or later governments through extra borrowing. On the low-migration track, gross debt as a share of GDP was projected to climb by about 4.8 percentage points.
Output per worker moves the needle most
The finding that should have made headlines got the least attention: changes in productivity count for far more than changes in migration. Treasury tested productivity growth from 0.8% to 1.6% of GDP. At the top of that range, income per capita rises by tens of thousands of dollars and government debt almost vanishes.
So the migration totals everyone argues about are a second-tier lever. The main one is how well the current and future workforce, migrants among them, really performs. That changes the whole debate. It is less about how many people arrive and more about what sort of economy they walk into, and how fast it can put their skills to work.
Reading this as someone getting ready to go
None of this is bad news for you. If anything, it points the other way. The data shows Australia's long-run finances leaning more and more on steady migration, not in spite of economic strain but because of it. In the government's own modelling, skilled migrants of working age help fix an ageing problem that will stay put no matter who wins the argument.
Be ready for the rules to keep changing with the political mood. Net migration targets are already being brought down towards 225,000 by 2028. Yet the population maths means the need for working-age people is not going anywhere; it is what keeps the system afloat. For South Africans looking at sponsored jobs for South African tradespeople, that means getting your trade certificate, skills assessment paperwork and an IELTS or PTE score sorted early, so you are ready when the right role opens.
What to keep in mind
There is no single correct population figure for Australia. There is a growing gap between an older population and the workforce needed to carry it, and migration is one of only a few ways to narrow it, with productivity growth the other big one. Reports such as the IGR are not so much a forecast as a warning about where things go if nobody acts. One demographer summed it up well: the best result for a report like this is that its gloomiest projections never happen, because they pushed leaders to change course in time.
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