Printable VS. Online Form
The biggest difference between the online and printable 8949 Form is that the online form can be automatically filled out and submitted. The printable form can only be filled out by hand and then mailed in.
There are a few key differences between the printable and online document. The online form is interactive, meaning you can enter your information directly into the form and the software will automatically calculate the totals for you. The printable form is a PDF that you must print and fill out by hand. The totals on the printable form will not be automatically calculated, so you will need to manually enter the totals for each section.