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Costco Wholesale (COST) Tax Rate (2016 - 2026)

Costco Wholesale's Tax Rate history spans 18 years, with the latest figure at 25.21% for Q1 2026.

  • For Q1 2026, Tax Rate fell 97.0% year-over-year to 25.21%; the TTM value through Feb 2026 reached 24.97%, up 24.0%, while the annual FY2025 figure was 25.13%, 77.0% up from the prior year.
  • Tax Rate reached 25.21% in Q1 2026 per COST's latest filing, up from 22.53% in the prior quarter.
  • In the past five years, Tax Rate ranged from a high of 27.1% in Q3 2023 to a low of 22.03% in Q4 2024.
  • Average Tax Rate over 5 years is 24.99%, with a median of 25.36% recorded in 2022.
  • Peak YoY movement for Tax Rate: plummeted -399bps in 2024, then skyrocketed 409bps in 2025.
  • A 5-year view of Tax Rate shows it stood at 22.94% in 2022, then rose by 7bps to 24.55% in 2023, then fell by -10bps to 22.03% in 2024, then grew by 2bps to 22.53% in 2025, then rose by 12bps to 25.21% in 2026.
  • Per Business Quant, the three most recent readings for COST's Tax Rate are 25.21% (Q1 2026), 22.53% (Q4 2025), and 25.64% (Q3 2025).