Just follow the steps below to file an amended return. There are also
directions on how to enter a 1099-R, after you've opened the amended
return you can use those to enter your form.
To File an Amended Return:
1. Wait for your return to be accepted or rejected by the IRS
2. Log into your account, and at your tax timeline select your "2016
Tax Year"
3. Select to "Amend (Change) 2016 return" and
follow the directions
Note: The amend form, Form 1040X for 2016, will be available in
mid-February.
https://ttlc.intuit.com/replies/3288565
To Enter Form 1099-R:
1. Select the Federal Taxes Tab
2. Select the Wages & Income Sub-Tab
3. Choose Explore On My Own
4. Scroll down the page which should now show a list of available areas to
visit
5. Under the Retirement Plans and Social Security section you
should now see the IRA, 401(k), Pension Withdrawals (1099-R) section.
You will want to select the Start option to the right.
For more information on the form 1099-r, select the
link below.
https://turbotax.intuit.com/tax-tools/tax-tips/IRS-Tax-Forms/When-to-Use-Tax-Form-1099-R--Distributi...