After you file

@dzc5386 - there are two types of errors

 

1) the calculations in the software are wrong - TT guarentees they are accurate otherwise, they pay any interest and penalties on your behalf under their guarentee

 

2) the taxpayer entered something incorrectly - TT does not guarentee this

 

either type or error can cause the tax return to be incorrect 

 

Let's focus on 2) 

 

what is it spefically stated in the letter? one of the issues that typically surfaces on these adjustments on these boards is is the stimulus / recovery rebate credit.  

 

1) what is the EXACT amount of th adjustment the IRS made

2) what is on line 30 of Form 1040? 

 

There was a point in the interview process where TT asked how much you received for each of the 1st two stimulus payments.  If you entered a number that does not match the IRS records, the IRS will adjust the difference.   Is that what happened?