Use Current Date To Change A Value In Records

I have a db that is a checkbook register. I use a field in each transaction record to tell whether the transaction is current or is a future transaction (if it is in the future then it doesn't yet affect my balance). For instance, if the item is not scheduled to be paid for two weeks (I schedule payments with online banking), I check the "future item" box, then that record for that item isn't included in the report that tells me my current balance. How can I automatically take away that check mark on records when the date in that record becomes todays date (or before today)? Because at that point it is no longer a "future" transaction but is current. I could do this manually but it seems like there should be a way to do it automatically.