(1) The association must establish and maintain its accounts and records in a manner that will enable it to credit assessments for common expenses and specially allocated expenses, including allocations to reserves, and other income to the association, and to charge expenditures, to the account of the appropriate units in accordance with the provisions of the declaration.

(2) To assure that the unit owners are correctly assessed for the actual expenses of the association, the accounts of the association must be reconciled at least annually unless the board determines that a reconciliation would not result in a material savings to any unit owner. Unless provided otherwise in the declaration, any surplus funds of the association remaining after the payment of or provision for common expenses and any prepayment of reserves must be paid annually to the unit owners in proportion to their common expense liabilities or credited to them to reduce their future common expense assessments.