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AI-enabled tax transformation

Testing the water

The tax ecosystem stands at a critical juncture where artificial intelligence (AI) has moved from boardroom speculation to operational necessity. AI investments are outpacing other technologies as tax departments seek to streamline compliance and unlock data-driven insights. While AI offers transformative potential in automating routine tasks and enhancing strategic tax planning, tax leaders face significant challenges including data quality concerns, talent gaps, and building trust in AI-driven decisions.  This article explores how tax departments are using AI and what they can (and arguably should) do today.

AI in Tax today: Advantage or hype?

Artificial intelligence (AI) has transitioned from a futuristic concept to an expected component of today's business landscape. In 2024 in the US alone, AI attracted investment three times greater than Cloud computing (the next most heavily funded sector) attracted a mere decade earlier. By 2026, the total US investment pledged from the US technology giants such as Microsoft, Apple, and OpenAI for AI infrastructure reached US$425 billion and is expected to be US$1.4 trillion over the next four years (Fig 1).

Figure 1. Investment in AI is outpacing past technology wave

AI can help streamline manual processes performing initial document reviews and analysis of complex scenarios (e.g., due diligence, controversy, employment status), data review and classification, or preparation for compliance returns. While human validation is always required, AI can increase efficiency and focus. However, current efficiency gains are a drop in the ocean compared to the hoped for untapped possibilities of AI. The transformative potential of AI in generating data-driven insights, for strategic decision-making, and allowing for quicker responses to market shifts, remains largely unrealized. Tax leaders face challenges like evolving regulations, talent shortages, and the need for real-time data access, making AI tools essential for maintaining compliance and efficiency.  Some companies are looking to outsourcing as a way to gain access to AI-powered solutions without the need for massive capital expenditure and the ongoing cost of upgrades as the technology evolves. In this way tax leaders can embrace AI strategically, focusing on demonstrable business outcomes.

What Tax leaders can (and arguably should) do now

Notwithstanding the hype , many tax departments remain hesitant about embracing AI, caught between the excitement of technological innovation and resistance to change. Tax leaders, understandably wary of potential pitfalls (as inaccuracy and data security chief among them), are carefully weighing the risks against the promise of AI-powered efficiency. Many companies have started simply with gaining familiarity with AI tools, from leveraging generative AI to boost productivity, to automating data-intensive tasks. According to Deloitte’s Tax Transformation Trends research, 21% of tax leaders are testing the water by prioritizing the automation of routine data tasks using AI (Fig. 2). Some have already started experimenting with more strategic tasks for AI such as tax planning enhancement (10%) and identifying tax risks and opportunities (8%).

Figure 2. Priorities for AI use in the tax department

With so much choice in AI tools on the market, and more being developed by the day, it’s important not to forget first principles and have clarity about the business or tax department objectives. Success factors could include streamlined compliance, enhanced insights, reduced costs, or improved accuracy. Clearly defined goals clarify the evaluation criteria for AI tool functionality. Typically, it is important to integrate AI tools into the operations where people spend their time. Also consider integrating data flows from Systems of Record/Enterprise Resource Planning systems and boundary systems into AI tools. For example, 46% of the survey respondents already enhanced their ERP systems with AI-driven tax analysis tools, and a further 44% plan to do so (Fig 3).

By prioritizing demonstrable business outcomes, tax departments can effectively leverage AI to achieve strategic goals.

Figure 3. Changes already made or planning to be made to ERP systems

With the right quality of data, AI can process information much faster than it can when dealing with poor data, providing quicker insights and allowing for more timely business decision-making. This necessitates a well-defined data strategy and approach, which is crucial for understanding what data should and could be used to advance AI-fueled business outcomes. This strategy must also take into account data privacy and confidentiality, clearly defining what data is crucial for your tax process flows and identifying the systems that house that data. By meticulously preparing and cleaning tax data, a tax leader can unlock accurate insights, improve efficiency, and reduce risk.

By meticulously preparing and cleaning tax data, a tax leader can unlock accurate insights, improve efficiency, and reduce risk.

The greatest barrier to AI adoption in tax departments is trust, with 77% of tax leaders requiring 90% or higher accuracy before entrusting AI with their tax processes. This reflects the exacting and regulated nature of tax, its impact on the business, and a need for greater transparency and confidence in AI’s capabilities.

Beyond trust issues, other factors are preventing tax leaders from diving in headfirst (Fig 4). These include budget constraints (cited by 45% of Deloitte’s survey respondents), limited AI expertise within teams (36%), and a lack of a clear AI strategy (33%). Furthermore, concerns about data security and privacy (30%) and insufficient support from company leadership (28%) are significant hurdles.

While there aren't any quick fixes, these issues are solvable. A cautious approach is to start small, learn quickly, and build confidence along the way. Crucially, a programmatic and thoughtful deployment strategy, focused on solving core business problems, yields better engagement and ROI than simply introducing tools without clear guidance.

Figure 4. Factors holding tax leaders back from implementing AI

For most organizations outside of the AI industry itself, AI is new territory. A barrier to implementation (figure 5) is limited AI expertise in the team, and 45% of Tax Transformation Trends 2025 survey respondents identified AI-related skills as their greatest need in the next one to two years. In addition, 94% of respondents believed AI skills will be essential within the next four to five years (Fig. 5). In a bid to improve their tax teams' technological expertise, 53% of respondents said they are actively recruiting digitally native talent skilled in technology and AI. To address challenges, basic first steps should therefore include defining the outcomes you want to achieve with AI and planning to bring new skills into the team.

Given the wide distribution of tax work and stakeholders who will have a broader enterprise view on the specialist or supporting functions, talent strategy, and skillsets, fostering close collaboration with Finance and IT is essential for better use of AI across the enterprise.

Figure 5. The importance of AI skills in Tax

What’s next?

Whether through outsourcing, shared services, or partnerships, there are ways to get started while building a longer-term strategy. The message is clear: embrace AI or risk being left behind. But adoption doesn’t mean going all-in overnight or doing it alone.

The AI landscape is noisy, and new tools are emerging constantly, each promising more than the last. It’s tempting to wait for clarity but waiting too long could mean falling behind. Tax departments have an opportunity to achieve the ambition of being a strategic business partner; evolving from compliance enforcers to invaluable advisers, contributing significantly to overall business success. The next step? Determine what business issue you are trying to solve and then develop a robust strategic roadmap to define your goals for AI implementation and measuring success.

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