I filed my tax refund for 2018 in Jan. 2019, was accepted in the same month. I have Amended my return on June 5, 2019, and I still have not recieved my refund yet. What's the hold up?
It can take the IRS up to 16 weeks to process an amended return. An amended return cannot be efiled. I will presume you mailed your amended return to the IRS. TurboTax does not mail it for you.
It should show up in this IRS tool. Do you see info on your amended return there?
Were you due a Federal refund with the original return you filed in January? If so, did you ever receive it prior to amending the return, or did you amend the return before you got the original refund?
Only the IRS will know what all they are doing with your return. In my comment above, you will see the steps to phone them, if necessary, but it's too soon to phone about an amended return. They might be able to tell you something about the original return if you never received an original refund.