File a C-3 report for each bank deposit made in the previous month and a C-4 report that covers the previous calendar month.  (February and April ballot measure committees have different reporting deadlines.)

Date: 
Repeats every month on the 10 of February, March, April, May until Fri May 10 2019 except Sun Feb 10 2019, Sun Mar 10 2019. Also includes Mon Feb 11 2019, Mon Mar 11 2019.
January 10, 2019
February 11, 2019
March 11, 2019
April 10, 2019
May 10, 2019