California Code, Revenue and Taxation Code - RTC § 17560

(d)(1) In the case of any installment obligation to which Section 453(l)(2)(B) of the Internal Revenue Code 2 applies, in lieu of the provisions of Section 453(l)(3)(A) of the Internal Revenue Code, the tax imposed under Section 17041 or 17048 for any taxable year for which payment is received on that obligation shall be increased by the amount of interest determined in the manner provided under Section 453(l)(3)(B) of the Internal Revenue Code.

(2) The provisions of Sections 10202 and 10204 of Public Law 100-203 are modified to provide for each of the following:

(e)(1) In the case of any installment obligation to which Section 453A of the Internal Revenue Code applies and which is outstanding as of the close of the taxable year, in lieu of the provisions of Section 453A(c)(1) of the Internal Revenue Code, the tax imposed by Section 17041 or 17048 for the taxable year shall be increased by the amount of interest determined in the manner provided under Section 453A(c)(2) of the Internal Revenue Code.

(2) The provisions of Section 453A(c)(3)(B) of the Internal Revenue Code, relating to the maximum rate used in calculating the deferred tax liability, are modified to refer to the maximum rate of tax imposed under Section 17041 in lieu of the maximum rate of tax imposed under Section 1 or 11 of the Internal Revenue Code.