Your EIN is necessary for several situations in running your business. You will need to use your EIN for certain tax forms, such as filing your tax returns for your business, and filling out W9 forms for clients (if you run a service business), and other forms related to managing payroll...
Gather Worksheets 1 to 3 to determine your losses through rental activity and commercial deductions. This will help you determine your gain to loss ratio. This is to determine if your losses through passive activity exceed your initial income. Write your figures into Part 1 on your 8582 tax fo...