The next prime minister of Australia will inherit a bond market that is increasingly nervous about government spending, with yields on 10-year government bonds expected to climb as investors demand a credible plan for fiscal consolidation, economists have warned.
Bond Market Jitters
According to a new analysis by the Australian National University’s Crawford School of Public Policy, the yield on 10-year Australian government bonds could rise by as much as 50 basis points if the incoming government fails to outline a clear path to budget surplus. The analysis, led by Professor Warwick McKibbin, suggests that global investors are watching Australia’s fiscal trajectory closely, particularly after the pandemic-era spending binge.
“The bond market is not forgiving of governments that ignore fiscal reality,” Professor McKibbin said. “Whoever becomes prime minister must understand that credibility in fiscal policy is paramount to maintaining low borrowing costs.”
Fiscal Challenges Ahead
The warning comes as both major parties ramp up spending promises ahead of the election. The Coalition has pledged tax cuts and increased defence spending, while Labor has committed to significant investment in renewable energy and social services. The Parliamentary Budget Office estimates that the combined cost of these pledges could exceed $30 billion over the forward estimates, adding to the national debt which already stands at over $900 billion.
“The next prime minister will have to make some tough choices,” said Dr. Sarah Hunter, chief economist at KPMG Australia. “If they try to please everyone, the bond market will punish them with higher yields, which will ultimately hurt homeowners with mortgages.”
Impact on Households
Higher bond yields typically translate into higher mortgage rates, as banks pass on increased funding costs to borrowers. With household debt at record levels, a 50-basis-point rise in bond yields could add roughly $100 to monthly repayments on a $500,000 mortgage. This would exacerbate the cost-of-living crisis that is already a top concern for voters.
“The bond market is effectively voting on fiscal policy,” said Chris Richardson, an independent economist. “If the next government doesn't convince investors that it’s serious about debt reduction, the pain will be felt in every household with a mortgage.”
International Context
Australia is not alone in facing bond market scrutiny. The United Kingdom saw bond yields spike in 2022 after its mini-budget, forcing the government to reverse course. Similarly, the United States has seen yields rise amid concerns about the national debt. Australia’s relatively strong economic position, including low unemployment and high commodity prices, provides some buffer, but analysts warn it is not immune.
“We’ve been lucky so far because global investors still see Australia as a safe haven,” said Professor McKibbin. “But that can change quickly if the next prime minister appears fiscally irresponsible.”
What the Next PM Must Do
Economists recommend that the next prime minister commission an independent fiscal review within the first 100 days, similar to the one undertaken by the UK’s new Labour government in 2024. This review would provide a baseline for budget decisions and signal a commitment to transparency.
“A quick and credible fiscal review would go a long way to calming bond markets,” said Dr. Hunter. “It would show that the government is not just making promises it can’t keep.”
The warning from experts is clear: the next prime minister must balance election promises with fiscal reality, or risk higher borrowing costs that could slow the economy and hurt households.
