Cal. Rev. & Tax. Code § 25134 : CALIFORNIA REVENUE AND TAXATION CODE — OTHER TAXES — CORPORATION TAX LAW — ALLOCATION OF INCOME — UNIFORM DIVISION OF INCOME FOR TAX PURPOSES ACT — Sales factor TEXT PDF The sales factor is a fraction, the numerator of which is the total sales of the taxpayer in this state during the taxable year, and the denominator of which is the total sales of the taxpayer everywhere during the taxable year. Ca. Rev. and Tax. Code § 25134 Amended by Stats 2000 ch 862 (AB 1843), s 225, eff. 1/1/2001.