Pass Through Entity Tax Payments (PTET)
Below is the link to pay the PTET tax:
Below are screen shots of most of what you will need to enter.
Enter your entity type & CA entity ID (this can be found on the first page of your CA return or can be found on by searching your entity's name on the CA Secretary of State's website - https://bizfileonline.sos.ca.gov/search/business).
Select Form Number (Corporations is Form, 100, 100S, or 100X)
Click Pass-Through Entity Elective Tax
Enter beginning year start & end dates that you are paying for & the amount I told you to pay (most likely not $1,000).