IMF Cuts Australia's 2027 Growth Outlook on Interest-Rate Risk

The International Monetary Fund has cut its forecast for Australia's real GDP growth in 2027 to 1.6%, down 0.1 percentage points, tied to a higher chance of another Reserve Bank of Australia interest rate rise. It expects the economy to expand by 1.9% in 2026. The Guardian

Real GDP means growth after adjusting for inflation. The Fund said the RBA may need to tighten further to contain price pressures. Inflation, a sustained rise in prices, remains the central challenge, it said. Weak productivity growth is constraining potential output, or how much the economy can produce without pushing prices up.

The warning extends to energy. Further large increases in global energy prices could create stronger second-round effects, when high energy costs feed into other prices and wages, and lift inflation expectations. That development, it said, would warrant additional monetary tightening, or higher interest rates.

The statement was issued as a concluding assessment after annual consultations with officials from Australian Treasury, the RBA and the Australian Prudential Regulation Authority. In it, the Fund called on federal and state governments to restrain spending and adopt more disciplined budgets to contain debt and support the RBA's disinflation effort, its push to bring inflation down.

On housing, the Fund said recent declines in house prices had done little to resolve unaffordability. It said recent changes to capital gains taxation and negative gearing, tax rules that affect property investors, can reduce housing-related distortions.

The Australia review sits within a softer global outlook. In July the Fund lowered its forecast for 2026 global growth to 3.0%. Reuters In April it had cut its 2026 projection for emerging market and developing economies to 3.9% from 4.2% in January. Reuters An earlier April 2025 forecast had downgraded 2025 U.S. growth by 0.9 percentage points to 1.8%. Reuters Its country page lists Australian consumer price growth at 4.0% in 2026 and population at 28.077 million. IMF

The broader context here is the balance between government budgets and interest-rate policy when inflation has not yet settled and underlying growth is weak. The Fund is describing a narrow path. Fiscal restraint would reduce the burden on monetary policy. Looser budgets would do the opposite.

Looking at what this means for policymakers, the sequencing matters. If inflation expectations drift higher on energy pass-through, the RBA faces a choice between tolerating persistent inflation and tightening into soft growth. That tradeoff is sharper when productivity is weak, because supply cannot absorb demand without price pressure. In that framework, budget discipline is not only debt management. It helps tighten financial conditions without placing the full adjustment on borrowers.

In my view, the housing language deserves close attention. The Fund separates short-term price adjustment from structural affordability, and points to tax treatment rather than interest rates as the lever for distortions. Changes to capital gains taxation and negative gearing belong to budget and structural policy, not monetary policy. Whether Canberra and the states use them with discipline will shape how much further the RBA must go.