Because the ERC was unexpectedly terminated a quarter early due to the enactment of the Infrastructure Investment and Jobs Act, employers must repay any erroneous advanced payments or adjust any reduced deposits. Employers must repay any advanced payments by the due date of their employment tax return that includes the fourth quarter of 2021 to avoid any penalties. Similarly, employers that reduced their deposit in regards to wages paid on or after October 1, 2021 in anticipation of the ERC they expected to claim must deposit those taxes by December 20, 2021.