Section 16185 - Period used in computation of tax(a)General rule.--Every period in which a person engages in business shall be subject to the tax imposed under this act. Every person subject to the payment of the tax imposed under this act shall compute the person's taxable receipts using the receipts received for the tax measurement year ending in the tax year. Every person subject to the payment of the tax imposed under this act shall compute the person's net income using the net income for the tax measurement year ending in the tax year.(b)Certain new business.--Every person engaging in business who does not have a tax measurement year ending in the tax year shall file a return stating that no tax is due for the tax year.(c)Terminating businesses.--Every person that has terminated the person's business during the tax year shall compute its receipts and net income using the period which begins on the beginning date of the tax measurement year ending in the tax year and which ends on the date the business is terminated.(d)Changes in tax measurement year.--The collector shall prescribe regulations to ensure that every person that changes the person's tax measurement year, including a person that may have multiple tax measurement years within a tax year, shall pay the tax hereby imposed for all periods in business. 1984, May 30, P.L. 345, No. 69, § 5, imd. effective. Amended 2002, Dec. 30, P.L. 2089, No. 237, § 2, imd. effective.