The rate increase will take effect in two stages: a $1.00 increase on July 1, 2014, to $9.00 an hour, and another $1.00 increase on January 1, 2016, to $10.00 an hour. The last time California increased its minimum wage was on January 1, 2007.he rate increase will take effect in two stages: a $1.00 increase on July 1, 2014, to $9.00 an hour, and another $1.00 increase on January 1, 2016, to $10.00 an hour. The last time California increased its minimum wage was on January 1, 2007.