If you checked the box, on your return, that says you can be claimed as a dependent; you will not be getting a stimulus check. The IRS will not be checking to see if you were actually claimed.
This question has come up lot, here in this forum, and what is not clear is: what happens if you file an amended return to uncheck that box.
But, if you don't get it this year, you'll get it next year (if you still qualify). Under the CARES Act, if you are claimed as a dependent (or qualify to be claimed) on someone else’s return you cannot receive a stimulus check, in 2020. If you could be claimed as a dependent for 2019, but will not be for 2020, you will most likely get it in 2021.
"In essence, the stimulus check acts as an advance of your 2020 income tax refund. This means when you prepare your 2020 income tax return, there will be a line to include the section 6428 credit. The credit on your 2020 return is subtracted by any amount received as a stimulus check in 2020. If the amount you received as a stimulus check is less than the credit you are due, the difference will be included as part of your 2020 refund. If you have been overpaid by receiving the stimulus check, however, you will not be required to return any excess amount".
