The line must be this :
Debug.print "INSERT INTO tblTransactions ([Account1ID], [Account2ID], [TransactionDate], [TransactionType], [TransactionCategory], [Amount])" & _
" VALUES ( " & Me.[Account2ID] & " , " & Me.[Account1ID] & " , #" & Format(Me.[TransactionDate], "mm/dd/yyyy") & "# , '" &...