Recovery rebate credit work sheet listed one number on line 21 that the IRS owes me based on line 11 adjusted gross income. Turbo tax computed the results on line 21 and the IRS said the amount was incorrect based on my adjusted gross income was above the married couple amount (it is on the work sheet - the only thing I can think of is that one organization is wrong and the other is right. However the difference owed is not worth the argument with the IRS.