Be careful with putting in $0, as sometimes your AGI is already updated.
Unfortunately, the IRS doesn't bother sending you notifications or confirmations on what it actually is so you have to check yourself (which is a pain for young people who are doing taxes for the first time, like myself). If they do, it's not intuitive how to set those notifications.
TurboTax prompts you sometimes (as it did for me) to put $0 and I was rejected twice. Also, they're phone and email notifications don't come in at the same time, causing even more confusion on if you're returns were accepted or not. Just a reminder that I won't be using their services again, and I recommend anyone to do the same. Highly recommend FreeTaxUSA
