• AutoZone average pre-tax profit margin for 2023 was 18.19%, a 4.11% decline from 2022.
• AutoZone average pre-tax profit margin for 2022 was 18.97%, a 1.39% decline from 2021.
• AutoZone average pre-tax profit margin for 2021 was 18.71%, a 8.72% increase from 2020.

Pre-tax profit margin can be defined as earnings before taxes as a portion of total revenue.