Thomson Reuters has acquired tax automation startup SafeSend for $600 million in an all-cash deal. SafeSend, known for its AI-driven platform that streamlines tax document management, is used by 70% of the top 100 U.S. accounting firms. The acquisition aims to enhance Thomson Reuters' tax software offerings and improve automation in tax workflows, while SafeSend will remain available as a standalone product. This move aligns with Thomson Reuters' ongoing investment in AI technologies.