Ernst & Young LLP is developing a generative AI tool for tax professionals that's meant to automate repetitive data work and make tax planning more efficient.

The Big Four company is investing $1.4 billion into gen AI globally. Other Big Four firms have made similar pledges. The investments are in part a bet that the technology can fill in some gaps from the longstanding accounting shortage.

But implementing the technology in tax departments is difficult, in part because of how often policies change and the vast amount of data. Daren Campbell, leader of EY Americas Tax Technology and Transformation team, gave Bloomberg Tax an inside look at how his team seeks to overcome these challenges, where the technology is today, and what's next.

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