In addition, Schedules M-1 and M-2, previously included in Form 1120-F, are now separate forms. Schedule M-1, Reconciliation of Income (Loss) per Books with Income per Return is used by corporations ...

In January, the Internal Revenue Service announced plans for a new schedule to accompany the Form 1120, U.S. Corporation Income Tax Return. Schedule M-3, Net Income (Loss) Reconciliation for ...

Reason for M-1 As a schedule, the M-1 is an additional attachment to Form 1120S. All companies meeting certain income levels must include this completed schedule.

How to Compute Schedule M-2. IRS Form 1120-F, a corporate tax return, is made up of two schedules: M-1 and M-2. Schedule M-1 is reconciliation of income per books -- income before taxes as shown ...