How do I setup payroll, for a sole proprietorship LLC? No EIN, just SSN. No state (CA) employer number to enter. IRS and CA withholding should be zero, right?
Sole proprietors and LLC members are NEVER on payroll. Your own work is not compensatable as a businesscexpense and your business profit or loss is passed through to you and reported on your personal returns.
Your "pay" is considered an advance against the pass through profits and is called member draw, an equity account.
You only need payroll if you have actual employees, which does not count yourself. And if you have even 1 real employee you do need a FEIN.
CA may be different, and LLC is a state designation, but the sole purpose of a LLC is liability protection of personal assets and a LLC is a new entity and even a single member LLC should have a EIN separate from SS for this protection and separation from your personal stuff