Setting a specific date is not yet an option. I’ll pass this on for consideration, though. Currently, when setting a pending order (Stop, Limit or Stop-Limit) on the Invest or Stocks ISA, you have two options for setting an expiration:
End of day - the order will be cancelled if not executed by the end of the day on which you placed it.
Never - the order will remain pending unless it is filled or cancelled by yourself.