Now that you have the input, read the instructions for the form:

https://www.ftb.ca.gov/file/business/credits/small-business-hiring-credit.html

How to claim

• File your income tax return.
• Include form FTB 3866, Main Street Small Business Hiring Credit (coming soon), to claim the credit.
  • Provide the confirmation number (received from CDTFA on your Tentative Credit Reservation) when claiming these credits.
  • Use credit code 240 when claiming the credit.
• Visit Instructions for FTB 3866 for more information.
• Unused credits may be carried over for 5 years or until exhausted.