What form must be completed for tax deductions related to business use of a vehicle?

The form that needs to be completed for tax deductions related to the business use of a vehicle is Form 4562. This form is specifically designed to report depreciation and amortization, including the business use of vehicles. Taxpayers who use a vehicle for both personal and business purposes must complete this form to differentiate and substantiate the deductions claimed for the business portion of vehicle expenses.

When filing for these deductions, it's essential to maintain accurate records of the vehicle's usage, including mileage logs, to support the claims made on Form 4562. This documentation helps ensure compliance with IRS regulations and substantiates the deductions taken.

Other forms listed serve different purposes. For instance, Form 1040 is the main individual income tax return. Schedule A is for itemizing deductions, while Schedule C is for reporting income and expenses from a sole proprietorship. While Schedule C pertains to business income, it does not specifically focus on the vehicle depreciation and expense deductions, which is why Form 4562 is the appropriate choice for this context.