Yes, most large bank branches in the United States are open on Christmas Eve in 2021, however, some branches may have shortend hours and some may be closed.
**Holidays may affect normal hours of operation
Christmas Eve bank availabity can be tricky in 2021 since it falls on a Saturday. Most big banks appear to be open on Christmas Eve with varying hours. Smaller banks may choose not to be open that day. Banks in the United States will be closed on Christmas Day 2021