Australia's HECS made student loans repay through income, not fixed installments

In 1989 Australia introduced the Higher Education Contribution Scheme, the first broadly-based income-contingent loan for university charges anywhere in the world. A government committee had recommended user-pays higher education with repayments collected through the tax system.

Students pay nothing upfront; the debt is repaid only once income passes a threshold, with repayments collected by the tax office as a percentage of earnings. Because repayment depends on income, low earners are protected and there is no collateral to sell on default.

The design solved two problems at once: it moved the cost of higher education from general taxpayers to graduates without blocking access, and it made the loan safe for the government to hold — the same reason the scheme was copied internationally.

Repay through the tax system, only when income allows

Income-contingent repayment eliminates the default problem that makes unsecured student loans risky.

The tax system collects repayments cheaply and automatically, with no new bureaucracy.

No upfront fees keep access open, while the threshold protects low earners from unpayable bills.

The government holds the debt as a financial asset, so funding became a loan portfolio rather than a grant line.

Collect the loan through the system that already knows income, and tie repayment to ability to pay: the design removes default risk, preserves access, and makes the subsidy self-targeting.

HECS was later expanded and renamed HELP, and similar income-contingent schemes were adopted in New Zealand, South Africa, the UK and beyond. By 2017 outstanding Australian student debt was around A$52 billion, and policy debates continued over thresholds, fees and the true value of the loan book.