A 2016 tax return can only be printed and mailed, it cannot be e-filed.
The IRS has a target of sending a tax refund after 21 days from the date it was accepted by the IRS. This is a target only and not a guarantee.
If you choose to use TurboTax to complete and file the 2016 tax return then you will need to purchase and download one of the 2016 desktop editions from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
