During the 4th qtr '09, I wrote payroll liability checks after each payroll. I found out my boss never took them to the bank. I need to void these checks. They will not be replaced just yet. What date do I use to as the void date: the orig date of the checks (in 2009) or my most recent unreconciled bank statement (3/31/10)? All 2009 federal 941 reports have been filed with balances due that we will pay later. These liabilites have to go back into the general ledger so they'll be there when we finally pay the taxes. I have not closed the year 2009. All bank recs have been done.