It depends. If you truly could be claimed as a dependent, then no, the stimulus would not be available. If you do not qualify as their dependent, then you could file an amended return to correct this input.
Please check your Form 1040 on line 9. If it is any number other than $12,200, then you were filed as a dependent. For the stimulus payment, if the person was claimed or could be claimed as a dependent, they are not eligible.
Confirm with 2019 Publication 501 Dependents, Standard Deduction, and Filing Information on page 4 and page 11 to determine if you are or are not qualified to be a dependent. For a simpler list, click: Who can I claim as a dependent?
If you need to file an amended return, yes, TurboTax can help. Depending on your income level, you may be able to file for free. Check out this article: What's the difference between IRS Free File Program and Free Edition? to see if you qualify for the Free File program.
Otherwise, click the link to go to the TurboTax website. Click sign in to create your account.
In either case, for instructions on how to file an amended return that was filed elsewhere, see this article with step by step instructions to convert to TurboTax for filing an amended return.
You will pay once (if applicable) for the amended return at the point of selecting paper filing (as opposed to e-filing) the original return.
Then, trigger the amendment following the article here: How to amend (change or correct) a return you already filed. I always recommend sending the return(s) via certified mail so that it is traced.
In the meantime, you can visit the following links for the most recent updates:
IRS Coronavirus Tax ReliefTurboTax
Corona Virus Tax Center Updates
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