Annually, the city auditor shall certify to the county auditor all uncertified installments of assessments which are to be extended upon the tax lists of the municipality for the current year in the manner provided in section 40-24-12. The annual certification shall continue until the amount of moneys on deposit in the fund established pursuant to section 40-24-18 is sufficient to cover outstanding principal of and interest on any obligations issued to fund such projects, and in addition thereto, to repay the city for any payments made by the city to fund deficiencies in the fund established pursuant to section 40-24-18.