I use the H&R Block software...and when you enter a 1099 it asks which copy of the schedule C you would like to apply it to, and lists ones you have created. (option #1)
I have one for my MS business and another for my main career, and it's easy to just apply the 1099 to the appropriate business. If you have just one business, it will be even easier.
I use the H&R Block software....
When H&R asks "when did you first use vehicle for this business" do they mean ever?