Migration policy works best when selection and capacity move together.

The benefit side

A well-selected permanent program can raise labour supply, fill specific skills gaps, add tax revenue, and support export industries such as international education. Treasury's long-run modelling is useful here because it separates fiscal and GDP effects by migrant stream rather than treating every arrival as identical.

The simulator therefore gives weight to skilled-primary places and faster recognition of overseas qualifications. That does not imply family migration has no value; it keeps the measurable economic channel separate from social, humanitarian, and community goals.

Fiscal NPV and cohorts

NPV means net present value: a future stream of taxes paid and services used, converted into today's dollars. A cohort is the group being assessed together. Here, the permanent cohort means one annual permanent-program intake.

The formula is deliberately transparent: weighted lifetime fiscal value per migrant multiplied by permanent places. The weighted value uses the skilled-primary share, an assumed skilled-secondary share inside the Skill stream, and the remaining Family stream share.

The pressure side

Population growth becomes politically and economically fragile when it outruns housing delivery or concentrates heavily in already constrained cities. A national fiscal dividend can coexist with renters facing a local supply shock.

The model translates NOM into an estimated dwelling requirement and compares that with an annual homes-completed lever. It also treats student load, capital-city concentration, and total volume as pressure signals.

NOM, tourists, and temporary visas

Net overseas migration is not the same as border crossings. ABS uses the 12/16-month rule, so a temporary visa holder can count if they become a usual resident for migration measurement, while an ordinary short tourist visit does not count.

This matters because NOM is the simulator's population-pressure lever. It captures durable residence change, not every arrival at the airport.

International education exports

ABS records education-related travel exports as an annual balance-of-payments value. The $53.6B baseline is an economy-wide annual export number for 2024-25. It includes $23.5B in tuition fees and $29.9B in goods and services.

The denominator is the active student stock, not new arrivals. The Department of Education counted 551,717 international students studying in Australia in January 2026, which makes the baseline roughly $97k per active student per year. The student lever uses a dampened relationship, because a change in new arrivals does not instantly resize the whole sector.

Stress testing the settings

At low NOM and high building rates, the simulator tends to show capacity improving faster than demand. At very high NOM, even a strong skills mix can be overwhelmed by housing and city pressure unless construction also lifts.

These settings are not predictions. They show which assumptions are carrying a scenario, and where the trade-off changes direction.

What this is not

This is not a full macroeconomic model, a population forecast, or a ranking of visa categories. It is a transparent policy simulator designed to expose trade-offs and make the assumptions easy to challenge.