You don't get a 1040. You enter your W2 into Turbo Tax which fills out the 1040 tax return for you that you efile or mail to the IRS.
Before filing, You can preview the 1040 or print the whole return
https://ttlc.intuit.com/community/accessing/help/how-do-i-preview-my-turbotax-online-return-before-f...
