Yes, you would enter 0 in that first field. The second field should have all your self-employment income. Your confusion is totally understandable, and to make it worse different states have different rules for what is considered sourced in their state. For California purposes, a nonresident has California sourced income from:
- Services performed in California
- Rent from real property located in California
- The sale or transfer of real California property
- Income from a California business, trade or profession (as in a business based in California)
