(a) The tax referred to in Section 183.03(a) and (b) shall first be levied, collected and paid with respect to the salaries, wages, bonuses, incentive payments, commissions, fees or other compensation earned on and after October 1, 1968.
(b) The tax referred to in Section 183.04(b), (c) and (d) with respect to net profits of trades, businesses, professions, enterprises, undertakings and other activities shall first be levied, collected and paid with respect to such net profits earned or accrued (in accordance with the regular accounting system of the taxpayer as approved by the Director of Internal Revenue) from and after October 1, 1968.
(Res. 128. Passed 9-3-68.)