The IRS can take up to 16 weeks for a mailed return. They are basing the stimulus payments off of 2019 tax filings. However, if the 2019 return is not yet on file, they will defer to your 2018 tax return.
The IRS has created a Get My Payment portal to track the progress of these payments for taxpayers. It is expected to be available beginning April 17, 2020.
Could I use the non-filer option to keep that from happening?
No, you should not use the non-file option. When you use that, you are actually filing a return with zero income and refund or tax liability. If you have already mailed your return and it is in the system, the non-file option will be rejected.
For mailed paper returns: If you filed a paper return, please allow 4 weeks before checking the status. Refund processing time is 6 to 8 weeks from the date the IRS receives your tax return.
So I won’t qualify for the stimulus check because last year on my taxes I was qualified as a dependent but not this year. Am I correct? Even though my parents didn’t claim me on their taxes that they already received?
If you didn't file your 2019 return in time for the IRS to review it for the stimulus, then you can still receive it in 2021 when you file your 2020 return. The stimulus is actually an ADVANCE on a credit on your 2020 return.