Conn. Gen. Stat. § 12-62x
Sec. 12-62x. Optional regional property tax base revenue sharing: Administrative auditor.
(b) The administrative auditor shall utilize the staff and facilities of the planning region. The planning region shall be reimbursed for the marginal expenses incurred by its staff by contribution from each other municipality in the planning region in an amount which bears the same proportion of the total expenses as the population of such municipality bears to the total population of the planning region. The administrative auditor shall annually, on or before February first, certify the amount of total expenses for the preceding calendar year, and the share of each municipality, to the treasurer or other fiscal officer of each municipality within the planning region. Payment shall be made by the treasurer or other fiscal officer of each municipality to the treasurer or other fiscal officer of the planning region on or before the succeeding March first.