There's been a constant dripfeed of budget news from Treasurer Jim Chalmers over the past week - but in less than 12 hours, the full economic blueprint will be unveiled.

This morning's pre-budget installment is confirming a second consecutive surplus of $9.3 billion by the end of June - but after that successive deficits that will be bigger than expected six months ago.

It's perhaps the biggest bet Treasurer Jim Chalmers is making in tomorrow night's budget. Updated forecasts in the budget papers will see inflation slowing faster than expected and back within the Reserve Bank's 2 to 3 percent target band by the end of the year. But the Reserve Bank isn't so optimistic and issued an inflation alert just last week.

Reporter: Peter Ryan, Senior Business Correspondent

Featured: Michele Bullock, Reserve Bank governor; Katy Gallagher, Finance Minister; Jame Hulme, Shadow finance minister; Stephen Koukoulas, economist

It's perhaps the biggest bet Treasurer Jim Chalmers is making in tomorrow night's federal budget.

Updated forecasts in the budget papers will see inflation slowing faster than expected .. and back within the Reserve Bank's 2 to 3 percent target band by the end of the year.

That's the forecast from Treasury - but the Reserve Bank isn't so optimistic.

Bonza CEO and founder Tim Jordan has apologised to staff, suppliers and passengers for the airline's collapse.

Hall Chadwick administrator Jovan Singh has told a creditors' meeting in Sydney that talks are underway with about 20 interested parties in a bid to rescue or restructure Bonza.

A senate inquiry has recommended that young Australians should be able to access some or all of their superannuation to buy a home.

The inquiry's interim report has been opposed by government members on the committee who warn that tapping super would only push up house prices and untimately force more Australians on to the aged pension.

I speak with committee chairman, NSW Liberal senator Andrew Bragg.

Super Members Council warns allowing Australians to access their superannuation to buy a home could cost taxpayers a trillion dollars by the end of the century with more people forced on to the aged pension. But NSW Liberal senator Andrew Bragg argues borrowers should be able to tap their super for a home if they want, rather than having their retirement nest up tied up for decades.

Reporter: Peter Ryan, Senior Business Correspondent

Featured: Andrew Bragg, NSW Liberal senator

There's been another warning that inflation remains a major risk to the global economy.

The timely reminder from the International Monetary Fund comes less than a week out from Australia's federal budget and alarm from the Reserve Bank that inflation is a real and present danger.

Also the Super Members Council warns early access to superannuation for home ownership could cost taxpayer a trillion dollars by the end of the century.

The hope of any interest rate cut this year appears to be fading after Reserve Bank governor Michele Bullock warned stubborn inflation might force an interest rate hike.

In response to a question from the ABC, Ms Bullock confirmed the RBA board did discuss the option of raising rates but decided to hold off despite evidence that inflation is hotter than expected.

It's a big day for anyone with a home loan who are no doubt watching for any sign of any interest rates relief.

The Reserve Bank will deliver it's latest rates decision this afternoon - but rather than signalling a rate cut, the Board is likely to warn another rate hike might be back on the agenda.

Qantas will pay a $100 million civil penalty after admitting it sold fares for flights it had already decided to cancel. The remarkable admission that it misled travellers means Qantas will also have to shell out another $20 million to compensate 78,000 customers hurt by the cancellations.

Reporter: Peter Ryan, Senior Business Correspondent

Featured: Gina Cass-Gottlieb, ACCC chair; Vanessa Hudson, Qantas chief executive; Michael Kaine, national secretary, Transport Workers Union