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Aon (AON) Operating Expenses (2016 - 2025)

Aon (AON) has 17 years of Operating Expenses data on record, last reported at $3.1 billion in Q4 2025.

  • For Q4 2025, Operating Expenses rose 1.18% year-over-year to $3.1 billion; the TTM value through Dec 2025 reached $12.8 billion, up 8.21%, while the annual FY2025 figure was $12.8 billion, 8.21% up from the prior year.
  • Operating Expenses reached $3.1 billion in Q4 2025 per AON's latest filing, down from $3.2 billion in the prior quarter.
  • Across five years, Operating Expenses topped out at $3.5 billion in Q3 2021 and bottomed at $2.1 billion in Q4 2021.
  • Average Operating Expenses over 5 years is $2.7 billion, with a median of $2.5 billion recorded in 2023.
  • Peak YoY movement for Operating Expenses: surged 80.2% in 2021, then plummeted 39.88% in 2022.
  • A 5-year view of Operating Expenses shows it stood at $2.1 billion in 2021, then increased by 0.57% to $2.1 billion in 2022, then rose by 22.57% to $2.6 billion in 2023, then rose by 17.72% to $3.1 billion in 2024, then grew by 1.18% to $3.1 billion in 2025.
  • Per Business Quant database, its latest 3 readings for Operating Expenses were $3.1 billion in Q4 2025, $3.2 billion in Q3 2025, and $3.3 billion in Q2 2025.