Business & farm

Enter the one business in your federal return - that information will carry over to both of your "part-year resident" returns, and you will be able to allocate how much of the total is reported to each state.

In the state tax programs for GA and CO, you will have an interview screen that allows you to allocate the business income from your federal return. You will have to calculate how much of that business income was allocable ("earned") to CO and how much was allocable to GA. Enter the appropriate amounts in each state tax interview income allocation screen.

Here is what the GA allocation screen looks like: