If you already filed your tax return the only way to change that is to prepare a Form 1040X to amend your return. But you should not send it in until your original return has been fully processed by the IRS. If you amend to change your answer as to whether you can be someone else's dependent, that question is in My Info.
Did you answer the question incorrectly and cause someone else's e-file to be rejected? If so, they have to print sign and mail their return now. They cannot e-file this year. The only way to claim you on a tax return now is by paper filing.
How do I amend my 2019 TurboTax Online return?
A 1040X cannot be e-filed. It must be printed and mailed. It will take about 4 months for the IRS to process an amended return. It is a good idea to use a mailing service that will track it, like UPS or certified mail, so you will know it was received.
Wait about 3 weeks from mailing and you can check the status of your amended return:
https://www.irs.gov/Filing/Individuals/Amended-Returns-(Form-1040-X)/Wheres-My-Amended-Return-1
https://www.irs.gov/filing/individuals/amended-returns-form-1040-x/amended-return-frequently-asked-q...
https://ttlc.intuit.com/questions/1908543-do-i-need-to-amend
Although the above tells you it takes about four months for the IRS to process an amended return, it is currently taking a lot longer during the pandemic. So if you amend now in August, be pleasantly surprised if the IRS processes it in 2020.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
