please note that box 1 may not reflect your actual annual salary. certain fringe benefits are treated as a reduction of taxable wages in box 1. certain other fringe benefits cn add to your taxable wages in box 1. even if you have none of these box 1 might not be your true annual salary, this could depend on when you actually are paid. for example a 2023 bonus might be paid by the employer early in 2024 so will be in box 1 in 2024 not 2023.