If a business employs non-exempt employees, it must comply with the federal, state, and local minimum wage laws. California's state minimum wage since January 1, 2023 is $15.50 for all employers regardless of size.
In addition to the state minimum wages, employers must comply with the local ordinances. Employers must check each locality where they do business or have their employees work from. This may be especially relevant for those who have employees working from various places.
For example, in Northern California, beginning July 1, 2023:
There are some employees who are exempt from the minimum wage law, such as executive, administrative, and professional workers, outside salespersons, or computer programmers. If your business employs only exempt employees, the minimum wage requirements do not apply, but it is important to correctly classify each employee as exempt.