before the word "INTO"
SELECT [Plug for non Matches].[Employee Name], [Plug for non Matches].[eComp ID], [09 Total Comp (GBP)]*[Plug TCAvg] AS [Plug to TCAvg], [09 Total Comp (GBP)]*[Plug TCLQ] AS [Plug to TCLQ], [09 Total Comp (GBP)]*[Plug TCMed] AS [Plug to TCMed], [09 Total Comp (GBP)]*[Plug TCUQ] AS [Plug to TCUQ], [09 Total Comp (GBP)]*[Plug TC90] AS [Plug to TC90], [09 Salary GBP]*[Plug Sal Avg] AS [Plug to Sal Avg], [09 Salary GBP]*[Plug Sal LQ] AS [Plug to Sal LQ], [09 Salary GBP]*[Plug Sal Med] AS [Plug to Sal Med], [09 Salary GBP]*[Plug Sal UQ] AS [Plug to Sal UQ], [09 Salary GBP]*[Plug Sal 90] AS [Plug to Sal 90], [09 Total Bonus (GBP)]*[Plug Bonus Avg] AS [Plug to Bonus Avg], [09 Total Bonus (GBP)]*[Plug Bonus LQ] AS [Plug to Bonus LQ], [09 Total Bonus (GBP)]*[Plug Bonus Med] AS [Plug to Bonus Med], [09 Total Bonus (GBP)]*[Plug Bonus UQ] AS [Plug to Bonus UQ], [09 Total Bonus (GBP)]*[Plug Bonus 90] AS [Plug to Bonus 90], [10 Eva Salary (GBP)]*[Plug CYSal AVG] AS [Plug to CYSal Avg], [10 EVA Salary (GBP)]*[Plug CYSal LQ] AS [Plug to CYSal LQ], [10 Eva Salary (GBP)]*[Plug CYSal Med] AS [Plug to CYSal Med], [10 Eva Salary (GBP)]*[Plug CYSal UQ] AS [Plug to CYSal UQ], [10 Eva Salary (GBP)]*[Plug CYsal 90] AS [Plug to CYSal 90], 'Plug' AS [Plug or Match] INTO [Employees who have had Plug Applied]
FROM [Plug for non Matches] INNER JOIN [Reporting Extract] ON [Plug for non Matches].[eComp ID] = [Reporting Extract].[eComp ID];