Download the PDF of your tax return to include all forms and worksheets. The bank routing and account number will be shown on the Filing Instructions and on the Federal Information worksheet (Info Wks) in Part V of the worksheet.
When you sign onto to your online account using the exact same user ID you used to create, complete and file the 2016 tax return you will land on the Welcome Home screen. Click on My TurboTax at the top left of the program screen. This will take you to the 2016 Timeline. Under the section Some things you can do: Click on Download all forms and worksheets.