Limitation on deductions where combination of defined contribution plan and defined benefit plan

If amounts are deductible under the foregoing paragraphs of this subsection (other than paragraph (5)) in connection with 1 or more defined contribution plans and 1 or more defined benefit plans or in connection with trusts or plans described in 2 or more of such paragraphs, the total amount deductible in a taxable year under such plans shall not exceed the greater of—

(i) 25 percent of the compensation otherwise paid or accrued during the taxable year to the beneficiaries under such plans, or

(ii) the amount of contributions made to or under the defined benefit plans to the extent such contributions do not exceed the amount of employer contributions necessary to satisfy the minimum funding standard provided by section 412 with respect to any such defined benefit plans for the plan year which ends with or within such taxable year (or for any prior plan year).

A defined contribution plan which is a pension plan shall not be treated as failing to provide definitely determinable benefits merely by limiting employer contributions to amounts deductible under this section. In the case of a defined benefit plan which is a single employer plan, the amount necessary to satisfy the minimum funding standard provided by section 412 shall not be less than the excess (if any) of the plan’s funding target (as defined in section 430(d)(1)) over the value of the plan’s assets (as determined under section 430(g)(3)).

Any amount paid under the plans in any taxable year in excess of the limitation of subparagraph (A) shall be deductible in the succeeding taxable years in order of time, but the amount so deductible under this subparagraph in any 1 such succeeding taxable year together with the amount allowable under subparagraph (A) shall not exceed 25 percent of the compensation otherwise paid or accrued during such taxable year to the beneficiaries under the plans.

(i) Beneficiary test This paragraph shall not have the effect of reducing the amount otherwise deductible under paragraphs (1), (2), and (3), if no employee is a beneficiary under more than 1 trust or under a trust and an annuity plan.

(ii) Elective deferrals If, in connection with 1 or more defined contribution plans and 1 or more defined benefit plans, no amounts (other than elective deferrals (as defined in section 402(g)(3))) are contributed to any of the defined contribution plans for the taxable year, then subparagraph (A) shall not apply with respect to any of such defined contribution plans and defined benefit plans.

(iii) Limitation In the case of employer contributions to 1 or more defined contribution plans— (I) if such contributions do not exceed 6 percent of the compensation otherwise paid or accrued during the taxable year to the beneficiaries under such plans, this paragraph shall not apply to such contributions or to employer contributions to the defined benefit plans to which this paragraph would otherwise apply by reason of contributions to the defined contribution plans, and (II) if such contributions exceed 6 percent of such compensation, this paragraph shall be applied by only taking into account such contributions to the extent of such excess.

For purposes of this clause, amounts carried over from preceding taxable years under subparagraph (B) shall be treated as employer contributions to 1 or more defined contributions plans to the extent attributable to employer contributions to such plans in such preceding taxable years.

(iv) Guaranteed plans In applying this paragraph, any single-employer plan covered under section 4021 of the Employee Retirement Income Security Act of 1974 shall not be taken into account.

(v) Multiemployer plans In applying this paragraph, any multiemployer plan shall not be taken into account.

For purposes of this paragraph, a plan described in section 412(e)(3) shall be treated as a defined benefit plan.