[Code of Federal Regulations]
[Title 26, Volume 5]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.411(a)-5]

[Page 590-593]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.411(a)-5  Service included in determination of nonforfeitable 
percentage.

    (a) In general. Under section 411(a)(4), for purposes of determining 
the nonforfeitable percentage of an employee's right to his employer-
derived accrued benefit under section 411(a)(2) and Sec. 1.411(a)-3, 
all of an employee's years of service with an employer or employers 
maintaining the plan shall be taken into account except that years of 
service described in paragraph (b) of this section may be disregarded.
    (b) Certain service. For purposes of paragraph (a) of this section, 
the following years of service may be disregarded:
    (1) Service before age 22. (i) In the case of a plan which satisfies 
the requirements of section 411(a)(2) (A) or (B) (relating to 10-year 
vesting and 5-15-year vesting, respectively), a year of service 
completed by an employee before he attains age 22.
    (ii) In the case of a plan which does not satisfy the requirements 
of section 411(a)(2) (A) or (B), a year of service completed by an 
employee before he attains age 22 if the employee is not a participant 
(for purposes of section 410) in the plan at any time during such year.
    (iii) For purposes of this subparagraph in the case of a plan 
utilizing computation periods, service during a computation period 
described in section 411(a)(5)(A) within which the employee attains age 
22 may not be disregarded. In the case of a plan utilizing the elapsed 
time method described in Sec. 1.410(a)-7, service on or after the date 
on which the employee attains age 22 may not be disregarded.
    (2) Contributory plans. In the case of a plan utilizing computation 
periods, a year of service completed by an employee under a plan which 
requires mandatory contributions (within the meaning of section 
411(c)(2)(C) and Sec. 1.411(c)-1(c)(4)) to be made by the employee for 
such year, if the employee

[[Page 591]]

does not participate for such year solely because of his failure to make 
all mandatory contributions to the plan for such year. If the employee 
contributes any part of the mandatory contributions for the year, such 
year may not be excluded by reason of this subparagraph. In the case of 
a plan utilizing the elapsed time method described in Sec. 1.410(a)-7, 
the service which may be disregarded is the period with respect to which 
the mandatory contribution is not made.
    (3) Plan not maintained--(i) In general. An employee's years of 
service with an employer during any period for which the employer did 
not maintain the plan or a predecessor plan may be disregarded for 
purposes of section 411(a)(2). Paragraph (b)(3)(ii) of this section 
provides rules regarding the period prior to the adoption of a plan. 
Paragraph (b)(3)(iii) of this section provides rules regarding the 
period after the termination of a plan. Paragraph (b)(3)(iv) of this 
section provides rules regarding employers who have certain 
relationships with other employers maintaining the plan.
    (ii) Period prior to adoption. The period for which a plan is not 
maintained by an employer includes the period before the plan was 
established. For purposes of this subdivision, a plan is established on 
the first day of the plan year in which the plan is adopted even though 
the plan is adopted after such first day. Except as provided in 
paragraph (b)(3)(iv) of this section if an employer adopts a plan which 
has previously been established by another employer or group of 
employers, the plan is not maintained by the adopting employer prior to 
the first day of the plan year in which the plan is adopted by the 
adopting employer. In the case of a transfer of assets or liabilities 
(including a merger or consolidation) involving two plans maintained by 
a single employer, the successor (or transferee) plan is treated as if 
it was established at the same time as the date of the establishment of 
the earliest component plan. In the case of a plan merger, 
consolidation, or transfer of plan assets or liabilities involving plans 
of two or more employers, the successor plan is treated as if it were 
established on each of the separate dates on which such component plan 
was established for the employees of each employer. Thus, for example, 
if employer A establishes a plan January 1, 1970, and employer B 
establishes a plan January 1, 1980, and the plans were subsequently 
merged, then the merged plan would be treated as if it were in existence 
on January 1, 1970, with respect to A's employees and as if it were in 
existence on January 1, 1980, with respect to B's employees.
    (iii) Period after termination or withdrawal. The period for which a 
plan is not maintained by an employer includes the period after the plan 
is terminated. For purposes of this section, a plan is terminated at the 
date there is a termination of the plan within the meaning of section 
411(d)(3)(A) and the regulations thereunder. Notwithstanding the 
preceding sentence, if contributions to or under a plan are made after 
termination, the plan is treated as being maintained until such 
contributions cease, whether or not accruals are made after such 
termination. If, after termination of a plan in circumstances under 
which the employer may be liable to the Pension Benefit Guaranty 
Corporation under section 4062 of the Act, employer contributions are 
made to or under the plan to fund benefits accrued at the time of 
termination, such contributions shall, for purposes of this paragraph, 
be deemed to be payments in satisfaction of employer liability to such 
Corporation rather than contributions to or under the plan. In the case 
of a plan maintained by more than one employer, the period for which the 
plan is not maintained by the withdrawing employer includes the period 
after the withdrawal from the plan.
    (iv) Certain employers. For purposes of this subparagraph--
    (A) Predecessor employers. Service with a predecessor employer who 
maintained the plan of the current employer is treated as service with 
such current employer (see section 414(a)(1) and the regulations 
thereunder), and certain service with a predecessor employer who did not 
maintain the plan of the current employer is treated as service with the 
current employer (see section 414(a)(2) and the regulations thereunder).

[[Page 592]]

    (B) Related employers. Service with an employer is treated as 
service for certain related employers for the period during which the 
employers are related. These related employers include members of a 
controlled group of corporations (within the meaning of section 1563(a), 
determined without regard to subsections (a)(4) and (e)(3) (C) thereof) 
and trades or businesses (whether or not incorporated) which are under 
common control (see section 414 (b) and (c) and 29 CFR Part 2530, 
Department of Labor regulations relating to minimum standards for 
employee pension benefits plans).
    (C) Plan maintained by more than one employer. Service with an 
employer who maintains a plan is treated as service for each other 
employer who maintains that plan for the period during which the 
employers are maintaining the plan (see section 413 (b)(4) and (c)(3) 
and 29 CFR Part 2530, Department of Labor regulations relating to 
minimum standards for employee pension benefit plans).
    (v) Predecessor plan--(A) General rule. In the case of an employee 
who was covered by a predecessor plan, the time the successor of such 
plan is maintained for such employee includes the time the predecessor 
plan was maintained if, as of the later of the time the predecessor plan 
is terminated or the successor plan is established, the employee's years 
of service under the predecessor plan are not equalled or exceeded by 
the aggregate number of consecutive 1-year breaks in service occuring 
after such years of service. Years of service and breaks in service, 
without regard to whether the employee has nonforfeitable rights under 
the predecessor plan, are determined under section 411(a) (5) and (6) 
except that years between the termination date of the predecessor plan 
and the date of establishment of the successor plan do not count as 
years of service.
    (B) Definition of predecessor plan. For purposes of this section, 
if--
    (1) An employer establishes a retirement plan (within the meaning of 
section 7476(d)) qualified under subchapter D of chapter 1 of the Code 
within the 5-year period immediately preceding or following the date 
another such plan terminates, and
    (2) The other plan is terminated during a plan year to which this 
section applies.

The terminated plan is a predecessor plan with respect to such other 
plan.
    (C) Example. The rules provided by this subparagraph are illustrated 
by the following example:

    Example. (1) Employer X's qualified plan A terminated on January 1, 
1977, Employer X established qualified plan B on January 1, 1981. Under 
paragraph (b)(3)(v)(B) of this section, plan A is a predecessor plan 
with respect to plan B because plan B is established within the 5-year 
period immediately following the date plan A terminated.
    (2) Employee C was not covered by the A plan. Under the general rule 
in subdivision (v)(A) of this subparagraph, plan B is not maintained 
until January 1, 1981, with respect to Employee C.
    (3) Employee D was covered by the A plan. On December 31, 1976, D 
had 4 years of service. D had 4 consecutive 1-year breaks in service 
because, during the years between the termination of plan A and the 
establishment of plan B, he did not have more than 500 hours of service 
in any applicable computation period. Because D's consecutive 1-year 
breaks (4) equal his years of service prior to his breaks (4), plan B is 
not maintained until January 1, 1981, with respect to employee D.
    (4) Employee E was covered by the A plan. On December 31, 1975, E 
had 6 years of service. E had a 1-year break in service in 1976. E also 
had 4 consecutive 1-year breaks in service for the period between plan 
A's termination and plan B's establishment. Because E's years of service 
(6) are not less than his consecutive 1-year breaks (5), plan B is 
maintained for E as of the establishment date of plan A.

    (4) Break in service. A year of service which is not required to be 
taken into account by reason of a break in service (within the meaning 
of section 411(a)(6) and Sec. 1.411(a)-6)).
    (5) Service before January 1, 1971. A year of service completed by 
an employee prior to January 1, 1971, unless the employee completes at 
least 3 years of service at any time after December 31, 1970. For 
purposes of determining if an employee completes 3 years of service, 
whether or not consecutive, the exceptions of section 411(a)(4) are not 
applicable. For the meaning of the term ``year of service'', see 
regulations prescribed by the Secretary of Labor under 29 CFR Part 2530,

[[Page 593]]

relating to minimum standards for employee pension benefit plans.
    (6) Service before effective date. A year of service completed 
before the first plan year for which this section applies to the plan, 
if such service would have been disregarded under the plan rules 
relating to breaks in service (whether or not such rules are so 
designated in the plan) as such rules were in effect from time to time 
under the plan. For this purpose, plan rules which result in the loss of 
prior vesting or benefit accruals of an employee, or which deny an 
employee eligibility to participate, by reason of separation or failure 
to complete a required period of service within a specified priod of 
time (e.g., 300 hours in one year) will be considered break in service 
rules See Sec. 1.411(a)-9 for requirements relating to certain 
amendments to the break in service rules of a plan.
    (i) [Reserved]
    (ii) Examples. The rules of this subparagraph are illustrated by the 
following examples:

    Example 1. The A plan in 1971 provides for immediate participation 
and vesting at normal retirement age. Employees accrue a unit benefit 
based on their compensation in each year. The plan provides that if an 
employee is not employed on the last day of the calendar year, he loses 
all accrued benefits. The requirement of employment on the last day of 
the year is a break in service rule because employees can lose benefits 
by reason of their separation. Accordingly, in the case of employees who 
separate and do not return by the close of the year, service which is 
completed prior to separation may be disregarded.
    Example 2. The B plan in 1971 excludes from plan participation 
employees who work less than 1,200 hours per year. Because years of less 
than 1,200 hours are not taken into account under the B plan for 
eligibility to participate, such years are excluded under rules relating 
to breaks in service. Therefore, the years can be disregarded under this 
subparagraph.
    Example 3. The C plan in 1971 provides for immediate participation 
and provides accruals and vesting credit for 1,200 hours or more in a 
given year. The plan provides that if a participant works less than 300 
hours in a given year, he loses all prior vesting and benefit credits. 
The 300 hour rule is a break in service rule because the failure to 
complete 300 hours results in the loss of vesting and prior service 
credit. The 1,200 hour requirement is not a break in service rule 
because even though employees do not increase vesting or accrue benefits 
for service between 300 and 1,200 hours, they cannot lose prior vesting 
or benefits for such service. Accordingly, the C plan can disregard 
completed years only on account of less than 300 hours of service by an 
employee.

    (c) Special continuity rule for certain plans. For special rules for 
computing years of service in the case of a plan maintained by more than 
one employer, see 29 CFR Part 2530 (Department of Labor regulations 
relating to minimum standards for employee pension benefit plans).

(Sec. 411 (88 Stat. 901, 26 U.S.C. 411))

[T.D. 7501, 42 FR 42327, Aug. 23, 1977, as amended by T.D. 7703, 45 FR 
40985, June 17, 1980]