Statewide:

Governor Newsom from California signed an Executive Order that authorizes (does not command them to but allows for) regional governments to stop evictions for renters and homeowners and delay foreclosures for Californians affected by COVID-19. (The order does not relieve a tenant from the responsibility to pay rent, or restrict the landlord’s ability to recover rent that is due.) Eviction protections are in effect through May 31, 2020, unless stretched.

https://www.gov.ca.gov/2020/03/16/governor-newsom-issues-executive-order-to-protect-renters-and-homeowners-during-covid-19-pandemic/
https://www.gov.ca.gov/wp-content/uploads/2020/03/3.16.20-Executive-Order.pdf

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Los Angeles:
The Mayor of Los Angeles issued emergency moratoriums on evictions of household and commercial tenants in the City of Los Angeles during the local emergency period, if the tenant can show an inability to pay rent due to circumstances related to the COVID-19 pandemic.

https://www.lamayor.org/mayor-garcetti-orders-new-restrictions-evictions-announces-indefinite-moratorium-water-and-power

San Francisco:
Mayor Breed from San Francisco announced an Executive Order imposing a temporary moratorium on eviction for non-payment of rent by household tenants directly impacted by the coronavirus crisis.

https://sf.gov/news/about-citys-temporary-moratorium-evictions

San Diego:
The City Council from San Diego announced plans to take immediate action on a temporary eviction moratorium to give relief to residents and businesses facing financial difficulty related to the COVID-19 outbreak.

https://www.sandiego.gov/mayor/news/releases/mayor-council-president-take-aggressive-steps-provide-eviction-relief

Santa Clara:
The City Council from Santa Clara announced a statute establishing a temporary 45-day moratorium on evictions for the non-payment of rent and no-fault evictions for household tenants with incomes affected by the coronavirus.

https://santaclara.legistar.com/LegislationDetail.aspx?ID=4400605&GUID=6684BF19-DA21-44A4-A607-996E2C477808&Options=&Search=

Los Angeles: Los Angeles County property owners affected by the COVID-19 virus may have late penalties canceled if they are incapable of paying their property taxes by the April 10 deadline. LA County has no authority to extend the April 10 deadline, however, beginning on April 11, the day after property taxes are due, people […]