W2 - Medicaid Waiver Payments

I have a W2 from IHSS. I want to mail paper return to the IRS and California.

Box 1 = $0

Box 3 and 5 = $10,000

Box 16 = $0

 

Question 1: When I enter W2 Box 1 and Box 16 on 2022 Turbo Tax, should I enter $0 or $10,000 for form 1040 line 1a? 

 

Question 2: My W2 box 1 and Box 16 have $0. If I want to mail my returns to the IRS and California, do I have to submit or attach my W2 to my tax returns?