Why your tax refund might be smaller this year 01:34. But you'll also need to use additional schedules to calculate certain sources of income to list on Schedule 1.

Schedule C allows you to calculate your net business profit or loss, which then flows through to your individual 1040 tax return. Advertisement Article continues below this ad ...

A copy of your 2019 or 2020 schedule C 2019 1099-Misc received for box 7 or 2020 1099-NEC received for box 7 Invoice, bank statement or a book of records that establishes you are self-employed.