the amount for which such taxable property or services would have been sold to the general public. (3) Taxable amount If the employee discount amount exceeds 20 percent of the price that the taxable property or services would have been sold to the general public, then the sale of such taxable property or services by the employer shall be deemed the conversion of such taxable property or services to personal use and tax shall be imposed on the taxable employee discount amount. The taxable employee discount amount shall be— (A) the employee discount amount, minus (B) 20 percent of the amount for which said taxable property or services would have been sold to the general public. (h) Saturday, Sunday, or Legal Holiday When the last day prescribed for performing any act required by this subtitle falls on a Saturday, Sunday, or legal holiday (in the jurisdiction where the return is to be filed), the performance of such act shall be considered timely if it is performed on the next day which is not a Saturday, Sunday, or legal holiday (in the jurisdiction where the return is to be filed). 902. Transition matters (a) Inventory (1) Qualified inventory Inventory held by a trade or business on the close of business on December 31, 2018, shall be qualified inventory if it is sold— (A) before December 31, 2019, (B) by a registered person, and (C) subject to the tax imposed by section 101. (2) Costs For purposes of this section, qualified inventory shall have the cost that it had for Federal income tax purposes for the trade or business as of December 31, 2018 (including any amounts capitalized by reason of section 263A of the Internal Revenue Code of 1986 as in effect on December 31, 2018). (3) Transitional inventory credit The trade or business which held the qualified inventory on the close of business on December 31, 2018, shall be entitled to a transitional inventory credit equal to the cost of the qualified inventory (determined in accordance with paragraph (2)) times the rate of tax imposed by section 101. (4) Timing of