(a) (1) Notwithstanding any other provision of law, for the 1990–91 fiscal year, for the purposes of the computations required by Section 96.1 or its predecessor section, the amount of property tax presumed to have been received by the county in the prior year shall be increased by the amount of 1989–90 property tax administrative costs proportionately attributable to incorporated cities as determined pursuant to paragraph (2).

(2) The auditor shall determine the 1989–90 fiscal year property tax administrative costs proportionately attributable to incorporated cities by adding the 1989–90 fiscal year property tax-related costs of the assessor, tax collector, and auditor, including applicable administrative overhead costs as permitted by federal Office of Management and Budget Circular A-87 standards, and multiplying the sum of those amounts by the ratio of property tax revenue received by all incorporated cities divided by the total property tax revenue for all local jurisdictions in the county for that fiscal year.

(3) The county shall use the additional revenue received pursuant to this subdivision only to fund the actual costs of assessing, collecting, and allocating property taxes. At least once each fiscal year, the county auditor shall report the amount of these actual costs and allowable overhead costs to the legislative body and any other jurisdiction or person that requests the information. To the extent that actual costs for assessing, collecting, and allocating property taxes plus allowable overhead costs are less than the amount determined pursuant to paragraph (2), the county auditor shall apportion the difference to each incorporated city as otherwise required by this section.

(4) The county may retain up to one-half of any increased property tax allocation to which a jurisdiction may be otherwise entitled, until the county receives its additional revenues pursuant to this subdivision.

(5) It is the intent of the Legislature in enacting this subdivision to recognize that since the approval of Article XIII A of the California Constitution by the voters, county governments have borne an unfair and disproportionate part of the financial burden of assessing, collecting, and allocating property tax revenues for cities. It is further the intent of the Legislature that the adjustments provided for by this subdivision shall constitute charges by a county for the assessment, collection, and allocation of property taxes and shall not exceed the actual costs reasonably borne by a county for those activities.

(b) If so directed by the board of supervisors, the auditor shall determine the 1989–90 fiscal year property tax administrative costs proportionately attributable to local jurisdictions other than the county or city and county, and cities, by adding the property tax-related costs of the assessor, tax collector, and auditor, including applicable administrative overhead costs as permitted by federal Office of Management and Budget Circular A-87 standards, and multiplying the sum of those amounts by the ratio of property tax revenue received by jurisdictions other than the county, city and county, and cities, divided by the total property tax received by all local jurisdictions in the county for that fiscal year. Notwithstanding any other provision of law, this amount may be calculated for each fiscal year commencing with the 1989–90 fiscal year, and the auditor shall, commencing in the 1990–91 fiscal year, if so directed by the board of supervisors, submit an invoice to these jurisdictions for services rendered in the prior fiscal year.

(c) Notwithstanding subdivision (b), no invoice as described in that subdivision shall be submitted to any school district, community college district, or county office of education, nor shall any of those entities be required to pay any invoice, for property tax administrative costs for services rendered in the 1990–91 fiscal year, or in any subsequent fiscal year. This subdivision shall not be construed to prevent the auditor of any county from collecting from school districts, community college districts, and county offices of education, in accordance with subdivision (b), property tax administrative costs for services rendered to those entities in the 1989–90 fiscal year.

(Amended by Stats. 2006, Ch. 538, Sec. 607. Effective January 1, 2007.)