Has anyone had their refund significantly reduced and the reasons given did not seem possible or correct?

[jenj-bliss]

Reasons given that the information given did not match the IRS's records but my returns have not changed for many years.

[fanfare]

The problem with the IRS letter is it is confusing, and only lists possible reasons for your adjustment,

not the actual reason in your situation.

[NCperson]

however, in most cases, but not all cases, the reason for the adjustment is going to point towards a) stumulus and b) child tax credits.  

if the IRS beleives you already received your 3rd stimulus (and you had an amount on Line 30). there is going to be an adjustment

if the IRS belives you already received advance child tax payments and yoy failed to  aclnowledge that on your tax return, there is going to be an adjustment.