@SeniorForester The difference is about $1,400. That is the amount of the 3rd Stimulus check.
Did you already get the Stimulus payment they sent out last year starting March 2021? Do you have 1,400 on 1040 line 30? You might have tried to claim it again. Line 30 is only if you didn't get the full amount or qualify for more.
Did you get IRS letter 6475 saying what they sent you? If you didn't get the IRS letter 6475 saying what they sent you then check your bank statements and check your IRS account to see when and what they sent you.
https://www.irs.gov/payments/your-online-account
If you didn't get the 3rd Stimulus check but the IRS shows they sent it to you then request a trace for a missing third Stimulus payment
https://www.irs.gov/newsroom/questions-and-answers-about-the-third-economic-impact-payment-topic-j-p...
