Your Qualified Business, ordinary business income/loss

[Plarka]

I'm not sure what numbers to put in these fields, and I don't know how I knew what to do last year, or remember what I did!  I'm a single member filing as S Corp. I pay myself a reasonable salary.  Is this the total revenue my company took in? Or is it profit after expenses? Or something else?

[ThomasM125]

I believe you mean your Qualified Business Income (QBI). For the most part, it would be your net business income, after expenses. You would need to add back any dividends, capital gain/losses, non-business interest or foreign income reported on your business tax return, which is rare.

[Plarka]

Would I also subtract the salary I paid myself, and payroll taxes?

[Plarka]

Or, if I subtract the salary, that includes the payroll taxes, so I wouldn't also subtract that, right?

[DaveF1006]

Yes, your salary, including payroll taxes, is subtracted as an expense that will reduce your net income.

@Plarka