Aon (AON) Change in Taxes (2009 - 2026)

Aon's Change in Taxes history runs 18 years deep, the most recent figure standing at $243.0 million for Q1 2026.

• On a quarterly basis, Change in Taxes rose 59.87% year-over-year to $243.0 million in Q1 2026; TTM through Mar 2026 was $205.0 million, a 1963.64% increase from a year earlier, with the FY2025 full-year figure at $114.0 million, changed N/A from the prior year.
• Change in Taxes eased to $243.0 million in Q1 2026 per AON's latest filing, from $255.0 million in the prior quarter.
• Across five years, Change in Taxes topped out at $255.0 million in Q4 2025 and bottomed at -$225.0 million in Q2 2025.
• The 5-year median for Change in Taxes is $80.0 million (2022), against an average of $43.9 million.
• Across the five-year window, Change in Taxes jumped 600.0% in 2023 and slumped 3680.0% in 2024, its largest moves.
• Year by year, Change in Taxes stood at $80.0 million in 2022, then surged by 45.0% to $116.0 million in 2023, then advanced by 2.59% to $119.0 million in 2024, then soared by 114.29% to $255.0 million in 2025, then slipped by 4.71% to $243.0 million in 2026.
• Per Business Quant, the three latest AON Change in Taxes figures stand at $243.0 million (Q1 2026), $255.0 million (Q4 2025), and -$68.0 million (Q3 2025).