RTC §24654: (a) Section 448 of the Internal Revenue Code, relating to limitation on use of cash method of accounting, shall apply, except as otherwise provided.

(a) Section 448 of the Internal Revenue Code, relating to limitation on use of cash method of accounting, shall apply, except as otherwise provided. (b) For purposes of applying Section 448 of the Internal Revenue Code, Sections 801(d)(2), 801(d)(3), and 801(d)(5) of the Tax Reform Act of 1986 (Public Law 99-514), as modified by Section 1008(a) of Public Law 100-647, shall apply to each taxable year beginning on or after January 1, 1987. (c) (1) For taxable years beginning on or after January 1, 2019, the amendments made by Section 13102(a) of the Tax Cuts and Jobs Act (Public Law 115-97) to Section 448 of the Internal Revenue Code, relating to limitation on use of cash method of accounting, shall apply, except as otherwise provided. (2) (A) Any change in method of accounting made pursuant to this subdivision shall be treated for purposes of applying Section 24721, as initiated by the taxpayer and made with the consent of the Franchise Tax Board. (B) Section 13102(e)(1) of the Tax Cuts and Jobs Act (Public Law 115-97) does not apply to this subdivision. (C) Notwithstanding subparagraph (B), a taxpayer may elect to apply the provisions of this subdivision to taxable years beginning on or after January 1, 2018, and before January 1, 2019.