Three Tax Administration Trends from the IOTA General Assembly

The Intra-European Organisation of Tax Administration’s (IOTA) 30th General Assembly conference brought together tax authorities, international organisations, industry groups, and technology providers to discuss the future of tax administration. This year's event in Budapest featured attendees from organisations including the Organisation for Economic Co-operation and Development (OECD), International Monetary Fund (IMF), United Nations (UN), and tax administrations across Europe. Conversations centered on one dominant theme: how technology, AI in particular, is reshaping compliance, service delivery, and tax administration modernisation. Beyond the discussions on tax administration modernisation, the conference surfaced several trends that tax leaders should be watching closely. Here are three takeaways that stood out: 

1. Tax authorities are accelerating their AI journey: AI was the core theme throughout the conference. Tax authorities discussed applications ranging from compliance monitoring and risk management to fraud detection, audit selection, and taxpayer services. What was particularly notable was the similarity between the challenges tax authorities and taxpayers are working through. Conversations frequently touched on governance, workforce readiness, training, adoption, and responsible use of AI. These are many of the same considerations companies face as they evaluate how to incorporate AI into their own tax and finance functions. The result is a tax environment where governments and businesses are increasingly leveraging similar technologies to improve efficiency, decision-making, and compliance outcomes.
2. The shift toward proactive compliance continues: Another clear theme was the move toward earlier visibility into tax data and compliance activity. Discussions highlighted growing interest in real-time reporting, continuous controls, and more targeted interventions that help tax authorities identify and resolve potential issues sooner. For businesses, this trend reinforces the importance of treating compliance as an ongoing process rather than a point-in-time exercise. As digital reporting requirements expand and expectations evolve, organisations will benefit from processes and technologies that support timely reporting, stronger controls, and greater transparency across transactions.
3. Data remains the foundation: While AI dominated many conversations, discussions consistently returned to a more fundamental requirement: data. Tax authorities repeatedly identified data quality, accessibility, and governance as critical enablers of modernisation efforts and AI adoption. That message applies equally to taxpayers. Advanced technology can help automate processes and generate insights, but reliable outcomes depend on trusted information. Organisations looking to expand their use of AI should view data readiness as a prerequisite, not a parallel initiative.

Across all three themes, one message remained consistent: data sits at the center of modernisation efforts. Discussions on AI adoption, proactive compliance, and digital transformation repeatedly pointed to the importance of accessible, trustworthy, and well-governed information. Tax authorities view data as a foundational requirement for achieving their modernisation goals, and taxpayers face a similar imperative as they prepare for the next phase of digital tax administration. 

The conversations in Budapest reflected a global tax ecosystem focused on improving compliance, increasing efficiency, and making better use of technology. Organisations that invest in strong data foundations, sound governance practices tax automation and deep tax expertise will be best positioned as these trends continue to evolve.