California Revenue & Taxation Code
Cal. Rev. & Tax. Code § 6055
# (a)
A retailer is relieved from liability for sales tax that became due and payable, insofar as the measure of the tax is represented by accounts that have been found to be worthless and charged off for income tax purposes by the retailer or, if the retailer is not required to file income tax returns, charged off in accordance with generally accepted accounting principles. A retailer that has previously paid the tax may, under rules and regulations prescribed by the department, take as a deduction the amount found worthless and charged off by the retailer. If these accounts are thereafter in whole or in part collected by the retailer, the amount collected shall be included in the first return filed after the collection and the tax shall be paid with the return.
# (b)
This section shall become operative on January 1, 2028.
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