All investment earnings on money included within a public deposit of a subdivision and belonging to undivided tax funds shall, except as otherwise expressly provided by law, be apportioned by the auditor pro rata among the separate funds or taxing districts in the proportions in which they are entitled to receive distribution of such undivided tax funds, due allowance being made for sums transferred in advance of settlements. All investment earnings from other moneys deposited by a treasurer, which by reason of being custodial funds, or funds belonging in the treasury of a taxing, assessment, or other district of which the treasurer is acting as ex officio treasurer, or for any other reason, do not belong in the treasury of the state or subdivision shall, except as provided in O.R.C. §135.351, be apportioned among and credited to the funds to which the principal sums of such deposits or investments belong. All other investment earnings, except as provided in O.R.C. §135.351 and by resolution adopted pursuant to O.R.C. §3315.01 or O.R.C. §3375.391, shall be credited to the general fund of the county, municipal corporation, township, taxing district, assessment district, or other local authority to which the principal sum thereof belongs. (Res. 15-04. Passed 5-21-15.)