California Code, Unemployment Insurance Code - UIC § 928.5

(a) Any employer contributions under a qualified cash or deferred arrangement, as defined by Section 401(k) of the Internal Revenue Code, to the extent the amount is excluded from the gross income of the employee under Section 402(e)(3) of the Internal Revenue Code.

(b) Any amount treated as an employer contribution under a state pickup plan as defined by Section 414(h)(2) of the Internal Revenue Code, only if the payments are made pursuant to a salary reduction arrangement.

(c) Any amount deferred under a nonqualified deferred compensation plan shall be taken into account, for purposes of this article, on the later of the following:

(d) Any amount taken into account as “wages” by reason of subdivision (c), and the income attributable thereto, shall be taxed only once and shall not thereafter be treated as “wages” for purposes of this article.

(e) For the purposes of this section, the term “nonqualified deferred compensation plan” means any plan or arrangement for deferral of compensation other than a plan described under Section 934.