No notices received about 2019 return. The amounts client was due for Stimulus 1 and 2 were correct and  were received by direct deposit. Stimulus 3 was received in early 3/21 ( 2020 return was filed on 4/10/21 ).The client's income was lower in 2021 than 2020 so it seems the IRS would know the taxpayer received the correct amount. There has been no dependent changes either. The other thing that makes me feel like it is an error is that the IRS sent a paper check for this latest payment. I efile this client and he makes all estimated payments through EFTPS.

I have not seen anything posted from the IRS that overpayments need to be returned but this the agency that has yet to process over 35 million 2020 returns.