How to amend a current year tax return
https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-turbotax-online-return/00/27577
The amended return is form 1040X and can only be mailed (not efiled) and will take 8-12 weeks or more to process. And they only send checks for amended returns, no direct deposit. You should also wait to amend your return until you get your original refund or your payment has cleared because the IRS might adjust your original return.
