Alternative methods of meeting nondiscrimination requirements

A cash or deferred arrangement shall be treated as meeting the requirements of paragraph (3)(A)(ii) if such arrangement—

(i) meets the contribution requirements of subparagraph (B) and the notice requirements of subparagraph (D), or

(ii) meets the contribution requirements of subparagraph (C).

(i) In general The requirements of this subparagraph are met if, under the arrangement, the employer makes matching contributions on behalf of each employee who is not a highly compensated employee in an amount equal to— (I) 100 percent of the elective contributions of the employee to the extent such elective contributions do not exceed 3 percent of the employee’s compensation, and (II) 50 percent of the elective contributions of the employee to the extent that such elective contributions exceed 3 percent but do not exceed 5 percent of the employee’s compensation.

(ii) Rate for highly compensated employees The requirements of this subparagraph are not met if, under the arrangement, the rate of matching contribution with respect to any elective contribution of a highly compensated employee at any rate of elective contribution is greater than that with respect to an employee who is not a highly compensated employee.

(iii) Alternative plan designs If the rate of any matching contribution with respect to any rate of elective contribution is not equal to the percentage required under clause (i), an arrangement shall not be treated as failing to meet the requirements of clause (i) if— (I) the rate of an employer’s matching contribution does not increase as an employee’s rate of elective contributions increase, and (II) the aggregate amount of matching contributions at such rate of elective contribution is at least equal to the aggregate amount of matching contributions which would be made if matching contributions were made on the basis of the percentages described in clause (i).

The requirements of this subparagraph are met if, under the arrangement, the employer is required, without regard to whether the employee makes an elective contribution or employee contribution, to make a contribution to a defined contribution plan on behalf of each employee who is not a highly compensated employee and who is eligible to participate in the arrangement in an amount equal to at least 3 percent of the employee’s compensation.

An arrangement meets the requirements of this paragraph if, under the arrangement, each employee eligible to participate is, within a reasonable period before any year, given written notice of the employee’s rights and obligations under the arrangement which—

(i) is sufficiently accurate and comprehensive to apprise the employee of such rights and obligations, and

(ii) is written in a manner calculated to be understood by the average employee eligible to participate.

(i) Withdrawal and vesting restrictions An arrangement shall not be treated as meeting the requirements of subparagraph (B) or (C) of this paragraph unless the requirements of subparagraphs (B) and (C) of paragraph (2) are met with respect to all employer contributions (including matching contributions) taken into account in determining whether the requirements of subparagraphs (B) and (C) of this paragraph are met.

(ii) Social security and similar contributions not taken into account An arrangement shall not be treated as meeting the requirements of subparagraph (B) or (C) unless such requirements are met without regard to subsection ( l ), and, for purposes of subsection ( l ), employer contributions under subparagraph (B) or (C) shall not be taken into account.

(i) In general Except as provided in clause (ii), a plan may be amended after the beginning of a plan year to provide that the requirements of subparagraph (C) shall apply to the arrangement for the plan year, but only if the amendment is adopted— (I) at any time before the 30th day before the close of the plan year, or (II) at any time before the last day under paragraph (8)(A) for distributing excess contributions for the plan year.

(ii) Exception where plan provided for matching contributions Clause (i) shall not apply to any plan year if the plan provided at any time during the plan year that the requirements of subparagraph (B) or paragraph (13)(D)(i)(I) applied to the plan year.

(iii) 4-percent contribution requirement Clause (i)(II) shall not apply to an arrangement unless the amount of the contributions described in subparagraph (C) which the employer is required to make under the arrangement for the plan year with respect to any employee is an amount equal to at least 4 percent of the employee’s compensation.