You can file a tax return for a tax refund at any time on or before 3 years from the due date of the tax return. For tax year 2016 you can file for a tax refund on or before April 15, 2020. For a withdrawal from an IRA you should have received a Form 1099-R from the plan administrator showing the amount withdrawn and the federal income taxes withheld. You need to report the tax data from that form 1099-R on the 2016 tax return.
Income received in one tax year can only be reported on a tax return for that tax year, not on a future year tax return.
Using TurboTax you would have to purchase and download one of the 2016 desktop editions from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
A 2016 tax return can only be printed and mailed, it cannot be e-filed.
Or you can get free forms, schedules and instructions from the IRS website - https://apps.irs.gov/app/picklist/list/priorFormPublication.html
