refund reduced by IRS

The IRS will be sending you a letter about this, so wait for it.  They do not notify TT.  Could you have made a data entry error, or forgotten to claim some income?  Or claimed the Recovery Rebate Credit for a stimulus payment that was already paid?

TT stands by its calculations, but is not responsible for user errors.

My mistake, we didn't get our second Stimulus until January 2021. TT was asking about 2020 Stimulus payments so naturally I was looking at our 2020 records. After I asked my question we received a letter from IRS explaining the mistake. TT will not answer your questions after they get their money. Thanks for your help.