How does Lacerte calculate the Schedule M-1?

The Form 1120 Schedule M-1, line 1, net income per books, is calculated as follows:

• Schedule M-1, line 10 (income or loss from page 1, line 28)
• + Schedule M-1, Lines 7 & 8 (increases)
• -  Schedule M-1, Lines 2-5 (decreases)
• = Schedule M-1, Line 1 (net income per books)

Lacerte will automatically generate most increases and decreases based on your entries throughout the return that indicate a difference between book and tax amounts. 

If you need to enter an M-1 adjustment manually, or override an automatic increase or decrease:

1. Go to Screen 39.1, Schedule M-1 (Book-Tax Adjustments).
2. To alter the M-1, line 2, enter an amount in Federal income tax (automatic if accruing).
3. To alter the M-1, line 3, enter an amount in Excess of capital losses over capital gains [O].
4. To alter the M-1, line 4, enter an amount in the Income Subject to Tax Not Recorded on Books subsection.
5. To alter the M-1, line 5, enter an amount in the Expenses Recorded on Books not Included on this Return subsection.
6. To alter the M-1, line 7, enter an amount in the Income Recorded on Books not Included on this Return subsection.
7. To alter the M-1, line 8, enter an amount in the Deductions not Charged Against Book Income subsection.

The Form 1120S Schedule M-1, line 1, net income per books, is calculated as follows:

• Schedule M-1, line 8 (income or loss from Schedule K, line 18)
• + Schedule M-1, Lines 5 & 6 (increases)
• -  Schedule M-1, Lines 2 & 3 (decreases)
• = Schedule M-1, Line 1 (net income per books)

Lacerte will automatically generate most increases and decreases based on your entries throughout the return that indicate a difference between book and tax amounts. 

If you need to enter an M-1 adjustment manually, or override an automatic increase or decrease:

1. Go to Screen 31.1, Schedule M-1.
2. To alter the M-1, line 2, enter an amount in the Income on Schedule K Not Recorded on Books section.
3. To alter the M-1, line 3, enter an amount in the Expenses Recorded on Books not Included on Schedule K section.
4. To alter the M-1, line 5, enter an amount in the Income Recorded on Books not Included on Schedule K section. 
5. To alter M-1, line 6, enter an amount in the Deductions on Schedule K not Charged Against Book Income section.

The Form 1065 Schedule M-1, line 1, net income per books, is calculated as follows:

• Schedule M-1, line 9 (income or loss from Form 1065, page 5, line 1)
• + Schedule M-1, Lines 6 & 7 (increases)
• -  Schedule M-1, Lines 2-4 (decreases)
• = Schedule M-1, Line 1 (net income per books)

Lacerte will automatically generate most increases and decreases based on your entries throughout the return that indicate a difference between book and tax amounts. 

If you need to enter an M-1 adjustment manually, or override an automatic increase or decrease:

1. Go to Screen 27.1, Schedule M-1.
2. To alter the M-1, line 2, enter an amount in the Income on Schedule K Not Recorded on Books section.
3. To alter the M-1, line 3, see here.
4. To alter the M-1, line 4, enter an amount in the Expenses Recorded on Books not Included on Schedule K section.
5. To alter the M-1, line 6, enter an amount in the Income Recorded on Books not Included on Schedule K section. 
6. To alter M-1, line 7, enter an amount in the Deductions on Schedule K not Charged Against Book Income section.