Except as provided, the California Constitution requires that all property be taxed in proportion to its full value and assessed at the same percentage of fair market value. The tax imposed pursuant to these provisions is commonly referred to as an ad valorem property tax. Existing property tax law, in accordance with the California Constitution, provides for a “welfare exemption” for property used exclusively for religious, hospital, scientific, or charitable purposes and that is owned or operated by certain types of nonprofit entities, if certain qualifying criteria are met. Under existing property tax law, property that meets these requirements that is used exclusively for rental housing and related facilities is entitled to a partial exemption, equal to that percentage of the value of the property that is equal to the percentage that the number of units serving lower income households represents of the total number of residential units, in any year that any of certain criteria apply.

Existing law imposes various penalties and costs for delinquent payment of real property taxes. Existing law provides that a property owner is not liable for interest or penalties, and prohibits the tax collector from taking or continuing any collection action, with respect to ad valorem property taxes levied upon a property if, annually while receiving the benefit, the facilities are in the course of construction, as defined, and the property owner supplies evidence to the tax collector that the property owner has submitted to the county assessor an application for an exemption pursuant to the above-described partial welfare exemption, except as provided, and that the property received a specified reservation of tax credits or award of funds. Existing law makes this benefit applicable to property tax installments that are due and payable from December 10, 2025, to April 10, 2031.