California Code, Code of Civil Procedure - CCP § 1522

No service, handling, maintenance or other charge or fee of any kind which is imposed because of the inactive or unclaimed status contemplated by this chapter, may be deducted or withheld from any property subject to escheat under this chapter, unless specifically permitted by this chapter.

Even when specifically permitted by this chapter, such charges or fees may not be excluded, withheld or deducted from property subject to this chapter if, under its policy or procedure, the holder would not have excluded, withheld or deducted such charges or fees in the event the property had been claimed by the owner prior to being reported or remitted to the Controller.