29 C.F.R. § 2510.3-102

(a) General rule. For purposes of subtitle A and parts 1 and 4 of subtitle B of title I of ERISA and section 4975 of the Internal Revenue Code only (but without any implication for and may not be relied upon to bar criminal prosecutions under 18 U.S.C. 664), the assets of the plan include amounts (other than union dues) that a participant or beneficiary pays to an employer, or amounts that a participant has withheld from his wages by an employer, for contribution to the plan as of the earliest date on which such contributions can reasonably be segregated from the employer's general assets.

(b) Maximum time period for pension benefit plans. With respect to an employee pension benefit plan as defined in section 3(2) of ERISA, in no event shall the date determined pursuant to paragraph (a) of this section occur later than the 15th business day of the month following the month in which the participant contribution amounts are received by the employer (in the case of amounts that a participant or beneficiary pays to an employer) or the 15th business day of the month following the month in which such amounts would otherwise have been payable to the participant in cash (in the case of amounts withheld by an employer from a participant's wages).

(c) Maximum time period for welfare benefit plans. With respect to an employee welfare benefit plan as defined in section 3(1) of ERISA, in no event shall the date determined pursuant to paragraph (a) of this section occur later than 90 days from the date on which the participant contribution amounts are received by the employer (in the case of amounts that a participant or beneficiary pays to an employer) or the date on which such amounts would otherwise have been payable to the participant in cash (in the case of amounts withheld by an employer from a participant's wages).

(d) Extension of maximum time period for pension plans.

(1) With respect to participant contributions received or withheld by the employer in a single month, the maximum time period provided under paragraph (b) of this section shall be extended for an additional 10 business days for an employer who—

(i) Provides a true and accurate written notice, distributed in a manner reasonably designed to reach all the plan participants within 5 business days after the end of such extension period, stating—

(A) That the employer elected to take such extension for that month;

(B) That the affected contributions have been transmitted to the plan; and

(C) With particularity, the reasons why the employer cannot reasonably segregate the participant contributions within the time period described in paragraph (b) of this section;

(ii) Prior to such extension period, obtains a performance bond or irrevocable letter of credit in favor of the plan and in an amount of not less than the total amount of participant contributions received or withheld by the employer in the previous month; and

(iii) Within 5 business days after the end of such extension period, provides a copy of the notice required under paragraph (d)(1)(i) of this section to the Secretary, along with a certification that such notice was provided to the participants and that the bond or letter of credit required under paragraph (d)(1)(ii) of this section was obtained.

(2) The performance bond or irrevocable letter of credit required in paragraph (d)(1)(ii) of this section shall be guaranteed by a bank or similar institution that is supervised by the Federal government or a State government and shall remain in effect for 3 months after the month in which the extension expires.

(3)

(i) An employer may not elect an extension under this paragraph (d) more than twice in any plan year unless the employer pays to the plan an amount representing interest on the participant contributions that were subject to all the extensions within such plan year.

(ii) The amount representing interest in paragraph (d)(3)(i) of this section shall be the greater of—

(A) The amount that otherwise would have been earned on the participant contributions from the date on which such contributions were paid to, or withheld by, the employer until such money is transmitted to the plan had such contributions been invested during such period in the investment alternative available under plan which had the highest rate of return; or

(B) Interest at a rate equal to the underpayment rate defined in section 6621(a)(2) of the Internal Revenue Code from the date on which such contributions were paid to, or withheld by, the employer until such money is fully restored to the plan.

(e) Definition. For purposes of this section, the term business day means any day other than a Saturday, Sunday or any day designated as a holiday by the Federal Government.

(f) Examples. The requirements of this section are illustrated by the following examples:

(1) Employer W is a small company with a small number of employees at a single payroll location. W maintains a plan under section 401(k) of the Code in which all of its employees participate. W's practice is to issue a single check to a trust that is maintained under the plan in the amount of the total withheld employee contributions within two business days of the date on which the employees are paid. In view of the relatively small number of employees and the fact that they are paid from a single location, W could reasonably be expected to transmit participant contributions to the trust within two days after the employee's wages are paid. Therefore, the assets of W's 401(k) plan include the participant contributions attributable to such pay periods as of the date two business days from the date the employee's wages are paid.

(2) Employer X is a large national corporation which sponsors a section 401(k) plan. X has several payroll centers and uses an outside payroll processing service to pay employee wages and process deductions. Each payroll center has a different pay period. Each center maintains separate accounts on its books for purposes of accounting for that center's payroll deductions and provides the outside payroll processor the data necessary to prepare employee paychecks and process deductions. The payroll processing service has adopted a procedure under which it issues the employees’ paychecks when due and deducts all payroll taxes and elective employee deductions. It deposits withheld income and employment payroll taxes within the time frame specified by 26 CFR 31.6302-1 and forwards a computer data tape representing the total payroll deductions for each employee, for a month's worth of pay periods, to a centralized location in X, within 4 days after the end of the month, where the data tape is checked for accuracy. A single checkrepresenting the aggregate participant contributions for the month is then issued to the plan by the employer. X has determined that this procedure, which takes up to 10 business days to complete, permits segregation of participant contributions at the earliest practicable time and avoids mistakes in the allocation of contribution amounts for each participant. Therefore, the assets of X's 401(k) plan would include the participant contributions no later than 10 business days after the end of the month.

(3) Assume the same facts as in paragraph (f)(2) of this section, except that X takes 30 days after receipt of the data tape to issue a check to the plan representing the aggregate participant contributions for the prior month. X believes that this procedure permits segregation of participant contributions at the earliest practicable time and avoids mistakes in the allocation of contribution amounts for each participant. Under paragraphs (a) and (b) of this section, the assets of the plan include the participant contributions as soon as X could reasonably be expected to segregate the contributions from its general assets, but in no event later than the 15th business day of the month following the month that a participant or beneficiary pays to an employer, or has withheld from his wages by an employer, money for contribution to the plan. The participant contributions become plan assets no later than that date.

(4) Employer Y is a medium-sized company which maintains a self-insured contributory group health plan. Several former employees have elected, pursuant to the provisions of ERISA section 602, 29 U.S.C. 1162, to pay Y for continuation of their coverage under the plan. These checks arrive at various times during the month and are deposited in the employer's general account at bank Z. Under paragraphs (a) and (b) of this section, the assets of the plan include the former employees’ payments as soon after the checks have cleared the bank as Y could reasonably be expected to segregate the payments from its general assets, but in no event later than the 90 days after a participant or beneficiary, including a former employee, pays to an employer, or has withheld from his wages by an employer, money for contribution to the plan.

(g) Effective date. This section is effective February 3, 1997.

(h) Applicability date for collectively-bargained plans.

(1) Paragraph (b) of this section applies to collectively bargained plans no sooner than the later of—

(i) February 3, 1997; or

(ii) The first day of the plan year that begins after the expiration of the last to expire of any applicable bargaining agreement in effect on August 7, 1996.

(2) Until paragraph (b) of this section applies to a collectively bargained plan, paragraph (c) of this section shall apply to such plan as if such plan were an employee welfare benefit plan.

(i) Optional postponement of applicability.

(1) The application of paragraph (b) of this section shall be postponed for up to an additional 90 days beyond the effective date described in paragraph (g) of this section for an employer who, prior to February 3, 1997—

(i) Provides a true and accurate written notice, distributed in a manner designed to reach all the plan participants before the end of February 3, 1997, stating—

(A) That the employer elected to postpone such applicability;

(B) The date that the postponement will expire; and

(C) With particularity the reasons why the employer cannot reasonably segregate the participant contributions within the time period described in paragraph (b) of this section, by February 3, 1997;

(ii) Obtains a performance bond or irrevocable letter of credit in favor of the plan and in an amount of not less than the total amount of participant contributions received or withheld by the employer in the previous 3 months;

(iii) Provides a copy of the notice required under paragraph (i)(1)(i) of this section to the Secretary, along with a certification that such notice was provided to the participants and that the bond or letter of credit required under paragraph (i)(1)(ii) of this section was obtained; and

(iv) For each month during which such postponement is in effect, provides a true and accurate written notice to the plan participants indicating the date on which the participant contributions received or withheld by the employer during such month were transmitted to the plan.

(2) The notice required in paragraph (i)(1)(iv) of this section shall be distributed in a manner reasonably designed to reach all the plan participants within 10 days after transmission of the affected participant contributions.

(3) The bond or letter of credit required under paragraph (i)(1)(ii) shall be guaranteed by a bank or similar institution that is supervised by the Federal government or a State government and shall remain in effect for 3 months after the month in which the postponement expires.

(4) During the period of any postponement of applicability with respect to a plan under this paragraph (i), paragraph (c) of this section shall apply to such plan as if such plan were an employee welfare benefit plan.

Definition of “plan assets”—participant contributions.