If your Box 1, W-2 amount is less than your
salary, it is because you have pre-tax deductions from your salary under one or
more employer plans. If you are not sure
about your Box 1 amount, your payroll department can provide the details of the
calculation of your Box 1 amount. Both your pre-tax health insurance and your
401(k) would reduce your Box 1 amount compared to your gross salary.
