Are banks open today December 24? Christmas Eve is not a federal holiday. That mean banks are not closed. However, banks, malls, mass transit, and grocery stores are open but are subject to possible shorter hours.
Bank on non federal holidays may set their own operating hours. On December 25 the will be closed. But on December 24, it’s discretionary.
The decision is generally not branch by branch. If you are a customer of one banking institution, chances are all of its retail locations are open or closed today.
Post offices? They are open on the 24th, closed on the 25th.