The 2016 online editions have closed for the 2016 tax season to make way for the 2017 online editions.
If you want to use TurboTax ,you will have to purchase and download one of the 2016 desktop editions from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
Or you could purchase the 2016 TurboTax software from a reputable online retailer, such as Amazon, which may be at a lower price.
A 2016 tax return can only be printed and mailed, it cannot be e-filed.
Free federal forms, schedules and instructions are available on the IRS website - https://www.irs.gov/forms-instructions
