(a) The county auditor-controller in each county in which a redevelopment agency exists shall establish in the county treasury a Special District Allocation Fund. The county auditor-controller shall deposit the following amounts into the fund out of each annual remittance by a city or county that includes a special district under this section paid pursuant to Section 34194 as follows:

1. (1) For the 2011–12 fiscal year, the amount shall be the city’s or county’s remittance amount multiplied by the ratio of four million three hundred thousand dollars ($4,300,000) to one billion seven hundred million dollars ($1,700,000,000).
2. (2) For the 2012–13 fiscal year and each fiscal year thereafter, the amount shall be the city’s or county’s remittance amount multiplied by the ratio of sixty million dollars ($60,000,000) to four hundred million dollars ($400,000,000).
3. (3) Amounts derived from the remittance payments of each city or county shall be maintained in separate accounts in the fund.

(b) On or before May 15 each year, the county auditor-controller shall make payments out of each account in the Special District Allocation Fund to each special district the boundaries of which include all or any portion of a redevelopment project area of the city’s or county’s redevelopment agency for special district services that the district determines further redevelopment purposes. Each special district shall receive a proportionate share of the total annual deposit in the account, determined as follows:

1. (1) For each special district, the auditor-controller shall determine the annual amount of tax increment revenue of the city’s or county’s redevelopment agency that is attributable to the special district. This amount shall be the amount of additional property tax revenue that the special district would have received in that year had property tax collected on incremental assessed value within the redevelopment project areas been allocated to the district under the property tax allocation laws then in effect. From this amount, the auditor-controller shall subtract any passthrough payments received in that year by the special district from the redevelopment agency.
2. (2) The county auditor-controller shall sum all of the annual amounts for individual special districts determined in paragraph (1).
3. (3) For each special district, the county auditor-controller shall calculate the ratio of the amount determined for that special district under paragraph (1) to the total amount determined in paragraph (2). This ratio shall be each special district’s proportion of the total payment from the account.