Treatment of certain deferred compensation and salary reduction arrangements
(A) Certain employer contributions treated as compensation Nothing in any paragraph of this subsection (other than paragraph (2)) shall exclude from the term “compensation” any amount described in subparagraph (A) or (B) of section 3121(v)(1).
(B) Treatment of certain nonqualified deferred compensation The rules of section 3121(v)(2) which apply for purposes of chapter 21 shall also apply for purposes of this chapter.