Question: Can I still make journal entries into a month that is NOT closed, but has a reconciled bank statement?
Answer: You can make a journal entry that has a bank account as one of the distributions, to a current or prior accounting period even though the bank reconciliation is reconciled. The journal entries will appear in the next bank reconciliation that is created.
For example, the August bank reconciliation is reconciled:
A journal entry made in September dated August was created:
On the next bank reconciliation you will see the journal entry, in this case it is JE 235: