Use Form 4562 to:
Who Must File Form 4562
If you are an employee deducting job-related vehicle expenses using either the standard mileage rate or actual expenses, use Form 2106, Employee Business Expenses, or Form 2106-EZ, Unreimbursed Employee Business Expenses, for this purpose.
File a separate Form 4562 for each business or activity on your return for which Form 4562 is required. If you need more space, attach additional sheets. However, complete only one Part I in its entirety when computing your section 179 expense deduction. See the instructions for line 12, later.