NO. You cannot wait and use a 2019 W-2 on a 2020 tax return next year. You will now have to wait for your 2019 return to be fully processed and then amend it to add the extra income.
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
https://ttlc.intuit.com/questions/3318997-how-does-the-refund-math-work-on-amendments
The 1040X becomes available later in February, so you have to wait for it. If your return is still being processed now, it would not be a good idea to amend yet anyhow. Sending in an amended return while they are still processing your original return could cause confusion that would delay your refund for months.
Check back later for the 1040X. AFTER your return has been fully processed.
**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.**
