Australian Businesses Are Spending More On Tech Than Ever. So Why Are So Many Falling Behind?

Australia is investing record amounts into technology. But an increasing share of that spend is going towards maintaining legacy systems, patching ageing infrastructure and managing technical debt rather than driving innovation. And in 2026, that distinction carries a cost previous generation of leaders never had to account for: an AI interest rate.

As AI gets layered onto tech stacks that have not been updated or maintained meaningfully in years, what looks like innovation is often compounding the problem. Legacy debt now actively undermines the ability to deliver impact. You get faster answers to the wrong questions and confident outputs built on shaky foundations. Yet these hidden costs rarely feature in boardroom conversations.

The debt nobody is pricing correctly

Organisations that clearly understand the modernisation problem are still stalling. They have budget conversations, bring in consultants, build roadmaps and twelve months later, little has changed. That is a leadership and execution failure.

Especially as the risk does not show up in most technology audits. If technical debt is the principal amount of sub-optimal architecture, you owe your codebase, the AI interest rate is the compounding cost of managing it.

The challenge facing Australia is about implementing AI with consistent governance, trusted data and architecture that supports scale. When data infrastructure is fragmented or poorly governed, AI does not resolve that. It amplifies it. The longer organisations wait, the more compounding works against them.

The numbers show this. Avanade’s Trendlines Report found that four in five business leaders in Australia are concerned about losing competitive advantage without rapid AI adoption and 86 per cent expect to increase AI project budgets by up to 50 per cent. Yet the majority (94 per cent) are still fast-tracking legacy system modernisation, a signal that the foundations are not ready for what’s being built on top of them.

Three things separating the organisations getting this right

Across Australian enterprises, the difference between organisations that modernise successfully and those that stall rarely comes down to the technology stack. It comes down to three things.

The first is prioritising outcomes over architecture. The organisations making real progress are pragmatic about business value above engineering perfection. They ask what needs to be true for an initiative to change a commercial outcome and work backwards from there. The ones that stall spend months debating ideal architecture for a problem they do not truly understand.

The second, decoupling the team, not just the code. The difference is rarely the technology or who has the most advanced AI models. But is the leadership team willing to remove complexity rather than adding to it? Migrating to a cloud-native architecture does not fix teams that do not share data. A modern system built on an outdated infrastructure only results in a faster, more expensive siloed mess. That shift requires decisive leadership, not a platform change. The winners don’t just break the monolith; they break the siloed culture that sustained it.

The third is treating Data as a Currency, not a clean-up job. Most organisations measure data by the cost of collecting and storing it. The ones successful at modernising measure it by the value it generates. If data quality cannot be tied to an outcome the executive table cares about, it will always be deprioritised. The organisations getting this right connect every data investment to a revenue, risk or customer that business leaders would recognise.

Responsibility and accountability matter more than ever

The shared responsibility model for modernisation rarely works because in practice it results in a shared permission to defer. Everyone is accountable, so no one actually is. What works is a named individual at the executive level with an explicit mandate and real authority over strategy decisions.

Not a committee or a steering group with rotating membership. One person whose professional stake is tied to the outcome, with a mandate anchored in strategy rather than governance frameworks. It is also the one person who has been given explicit permission to make decisions that may not pay off in this financial year. It comes from board-level conviction that modernisation is a value-creation lever, not a cost line.

For leaders, the message is clear – modernisation is no longer a back-office technology issue. It now sits at the heart of enabling business resilience, growth and competitiveness.

Every single delay adds cost, complexity and constraint. It narrows what organisations can do with AI before they have even begun to scale it. The winners will not be the companies with the most pilots or the boldest announcements. They will be the ones prepared to do the harder, less glamorous work of fixing the foundations.

So, the practical question for every executive team is this: where is your legacy debt already limiting growth and who is accountable for paying it down before AI simply makes the gap wider?

Rucha Sawant is Regional Practices Lead for Avanade Australia.

Last Updated on July 9, 2026 by Rucha Sawant