Once you're logged into your return, click on Federal Taxes, then Deductions & Credits, then scroll down to the lower half of the page and you'll see a variety of headings (you may need to click on Skip to see all tax breaks to open the lower part of the page). Then click on Education, and select Expenses & Scholarships (Form 1098-T). Then follow the prompts and TurboTax will ask you the appropriate questions and allow you to enter the information.