Tag Archive for: government spending

3 percent of GDP for defence is no stretch. We did 2.9 percent in the Cold War

Australia has plenty of room to spend more on defence. History shows that 2.9 percent of GDP is no great burden in ordinary times, so pushing spending to 3.0 percent in dangerous times is very achievable.

Budget watchers are quick to cite difficulties amid current pressures on revenue and expenditure. But historical data is more revealing than a nearsighted view down in the weeds of fiscal policy.

Australia just isn’t trying. For all the talk of deteriorating strategic circumstances, the defence share of GDP has been flat for half a decade, wandering between 1.9 and 2.0 percent.

The issues holding Australia back from spending more on its defence are largely political rather than economic.

The 2020 Strategic Defence Update identified an increase in geopolitical risks in our region and noted the possibility of Australia becoming involved in a major conflict without the formerly assumed 10-year warning time. As a result, successive Australian governments have made announcements about lifting defence spending through initiatives such as equipping the army with long-range missiles, expansion of the navy’s surface fleet and, most dramatically, AUKUS.

However, in terms of GDP, the proportion of total economic output that goes into current defence spending per year has not increased in recent years. It continues to hover around 1.9–2.0 percent of GDP. As shown in the chart below, Australia’s average defence spending as proportion of GDP since the Cold War ended has been 1.9 percent.

On 5 March, Elbridge Colby, head of policy at the US Department of Defense, called for Australia to spend 3.0 percent of GDP on defence. Various Australian defence and security figures, including former chief of the Australian Defence Force Angus Houston and former secretary of home affairs Mike Pezzullo have similarly called for defence spending to be lifted to 3.0 percent of GDP.

Economics writer David Uren recently explained that to lift defence spending to 3.0 percent, Australia would have to either take on additional debt, increase taxes or reallocate money from elsewhere in the government budget. All three of these options would be politically difficult.

While this is a point well made, the details of fiscal policy that usually absorb us become less useful for assessing the defence budget as we move into more unstable and dangerous times. History shows us that sustaining 3.0 percent of GDP spending over a period of time is quite achievable for Australia. The most recent example of this is the Cold War, particularly up until the 1970s.

Sources: SIPRI Military Expenditure Index and Australian government projections

As the chart shows, Australia could sustain average defence spending of 2.9 percent of GDP through the Cold War over 40 years from 1950 to 1991. (The Stockholm International Peace Research Institute dataset which the chart is based on only goes back as far as 1950, not quite the beginning of the Cold War.) This is very close to the 3.0 percent currently being advocated for. During the Cold War, Australia responded to the threat of communism expanding into South-East Asia by maintaining significant forces and often deploying these into various conflicts across our region.

This contrasts with the post-Cold War period from 1992 until now, where defence spending has averaged 1.9 percent of GDP. After the collapse of the Soviet Union, the United States and its Western allies quickly reduced military spending, enjoying a peace dividend due to reduced global geopolitical tensions. From 1986 to 1996, Australian defence spending dropped 0.6 of a percentage point from 2.5 percent to 1.9 percent of GDP. Over the next few years, defence spending remained consistently below 2.0 percent, even during the years of Australia’s involvement in the global war on terror and peacekeeping operations in our region. In 2013, defence spending reached its lowest share of GDP since 1938, just 1.6 percent of GDP.

The years since have seen great increase in geopolitical tensions, both in our region and globally. Yet defence spending as a proportion of GDP has increased only moderately and slowly since 2013, sitting at 2.0 percent in 2025. Under the government’s projections, spending will continue to slowly increase to 2.3 percent by 2033–34.

This is too little, too late. Under current budget restrictions, new defence announcements largely rely on cannibalising existing funding from sources declared to be of lesser priority, rather than on new funding. A recent example of this is the Redback Infantry Fighting Vehicle, which was cut from 450 vehicles to 129 vehicles, at a much higher per-unit cost.

The proportion of GDP should only be used as a rough guide towards spending on defence. What the money is spent on is important. However, the risk to Australian national security was no greater in the Cold War than it is now, and was arguably much lower. The fact that Australia for several decades maintained defence spending at higher levels than now shows that the country is capable of doing the same again.

Australia’s international spending reveals uneven ambition

How Australia funds development and defence was front of mind before Tuesday’s federal budget. US President Donald Trump’s demands for a dramatic lift in allied military spending and brutal cuts to US foreign assistance meant that a discussion was unavoidable. The difficult politics of increasing defence spending in Europe continues, and the British government has cut aid to pay for a rise in its defence budget.

This is an important discussion, but we ought to be considering investment in Australia’s strategic posture as a whole.

One way to measure that is the overall level of international spending. Taken together, defence, foreign affairs and trade, aid, the intelligence community and international policing total $72.05 billion for 2025–26, which is about 9 percent of total federal spending.

This share of spending has been steady at a little less than 10 percent since 1999. Attention has understandably focused on a potential lift in the defence budget. But we should think more broadly: there is a strong case that the overall level of spending on tools of ‘statecraft’ needs to rise above its steady level.

Within that $72.05 billion, defence dominates at $58.99 billion. There has been some reprofiling across the forward estimates, but this is consistent with the existing trajectory.

Time will tell whether the Trump administration decides to make an issue of this level of spending, which still hovers around 2 percent of GDP. Time will also tell whether Defence’s ambitious acquisitions program is achievable without further increases.

The official development assistance budget is $5.10 billion. This is about the same as the 2024–25 budget, adjusted for inflation. From a global perspective, with aid spending in retreat in many countries, this is welcome.

We should all recognise the particularities of Australia’s strategic circumstances. One such feature is a neighbourhood of low-income and middle-income countries. Development assistance in this context is not altruism but a strategic necessity. It helps offset risks that are born of underdevelopment, and that directly threaten Australian interests.

Moreover, experts across Southeast Asia have been clear on how Australia should respond to US aid cuts: ensuring stability in existing programs is the top priority.

The foreign affairs and trade budget is $3.91 billion. Within this, the diplomatic or foreign policy operating budget is $1.76 billion. This is a narrower measure, constructed by James Wise and originally published by ASPI. It strips out administered spending and other costs, such as IT and infrastructure, to provide a reasonable measure of Australia’s spending on diplomacy.

As Development Intelligence Lab research has previously noted, of Australia’s relevant budgets over the past 25 years, investment in diplomacy has been the most inconsistent. Although there has been no dramatic cut, projected inflation-adjusted declines in both the overall foreign affairs and narrower diplomatic budgets out to 2028 are concerning.

Australia’s intelligence community will receive a modest real budget rise to $2.05 billion year-to-year (this number excludes the Australian Signals Directorate, which is budgeted under Defence). This tallies with the recently released Smith-Maude Review, which recommends continued investment in Australia’s intelligence agencies, with focus areas including the Office of National Intelligence’s capability as a coordinating agency.

Finally, the Australian Federal Police budget (excluding domestic policing functions) is $2.00 billion, a small real decline compared to the 2024–25 budget. With the federal police now central to high-profile components of Australia’s engagement in Southeast Asia and the Pacific, such as the Pacific Policing Initiative, we can expect the federal police’s international spending to remain significant.

In short, defence spending has been bumped but its trajectory remains essentially the same. Aid, diplomacy, the intelligence community and federal policing are all at about a steady state, with modest inflation adjusted declines across the forward estimates.

The good news is that Australia has not decided to rob Peter to pay Paul. Nonetheless, the big questions remain: in 2025, do we really think that these tools should receive the same share of federal budget they received in 1999?

Things weren’t simple in 1999, and they’ve only become more complex since then. The crisis surrounding East Timor’s independence and then the 9/11 attacks in 2001 marked the beginning of complicated decades for Australian defence and foreign policy.

But Australia is now grappling with how to respond to a fraught position between China and the United States, while also trying to find a durable place among a crowd of ambitious partner nations across Southeast Asia and the Pacific. We need to properly invest in a broad range of tools to navigate this.