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MYEFO takes centre stage with Jim Chalmers set to unveil a smaller budget deficit

Economists are unlikely to be persuaded that a better-than-forecast deficit for 2025-26 confirms the budget is back on track.

Treasurer Jim Chalmers will face the spotlight for one of the final major economic announcements of the year — MYEFO. AAP Image/Mick Tsikas.

The federal government will end 2025 with one of the most critical economic events of the year — it's mid financial year budget update.

Here’s what you need to know about the key economic data releases this week.

Mid-year budget update

The release: Mid-Year Economic and Fiscal Outlook (MYEFO) 2025-26

When: Wednesday 17 December 2025

What we know: The federal government has already released some details about MYEFO ahead of time.

This includes a doubling in forecasted business investment for 2025-26 to 3%, from 1.5%, but a steady 1.5% forecast for 2026-27. Non-mining business investment forecasts were hiked to 4% from 1% for 2025-26 and 2%, up from 1%, in the following year.