Schedule A for itemised deductions, B for interest and dividends, C for self-employment income, D for capital gains, and E for partnership and S-Corp income, among others.
Which you file depends on your income sources. An owner with a K-1 and stock sales typically files D and E. Our guide to the 1040 schedules covers each one.
Inkle Tax prepares and files US federal and state returns for your company.