I forgot to add form 1099r before e-filing my taxes. What did I do?

[ThomasM · Accepted solution]

If you already filed and forgot a 1099-R, then you'll have to file an amended return (1040X).  You can do this in TurboTax but you'll need to wait until IRS processes your original return and issues any refund.  Then you can prepare the amendment and add the missing information.

IRS only accepts amended returns on paper, so you'll print, sign, and mail it.

Here's a link to the TurboTax support page for amended returns, which will get you started:  https://turbotax.intuit.com/tax-tools/tax-tips/IRS-Tax-Return/Amending-Your-Income-Tax-Return/INF120...