Follow these steps to calculate the vehicle expenses amount to report on Line 9 of Schedule C:
From within your TaxAct return (Online or Desktop) click Federal. On smaller devices, click the menu icon in the upper left-hand corner, then select Federal
Under Federal Quick Q&A Topics, click Business Income to expand the category and then click Business income or loss from a sole proprietorship (scroll down if necessary)
Click +Add Schedule C to create a new copy of Schedule C.
Continue through the screens until you reach Business Income - Expenses, click Yes and then click Continue
On the next screen titled Would you like to review vehicle expenses for this business? click Yes.
If you have not entered any vehicle information, click Continue or if you have entered vehicle information click add to add another vehicle or click review to review information for a vehicle already entered.
On the screen titled Depreciation and Vehicle Expenses, the Asset Type must be either a Car or Light Truck/SUV to be able to enter the vehicle miles driven on the following screen to calculate the standard mileage rate
Continue the Q&A process to enter information and when you reach the screen Vehicles - Actual or Standard, you can select the method you prefer to use