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Exam ALTAM · Pension Benefit Structures · Tutorial 318 of 999

Accrual, Entitlement, and Payment Dates

Learn to trace pension accrual, vesting, commencement, payment due dates, and actual payment dates without treating them as the same event.

Intermediate 11 min read

What You'll Learn

  • Distinguish benefit accrual from vesting and legal entitlement.
  • Identify how plan rules establish a vesting date and a pension commencement date.
  • Trace when a pension installment becomes due and when it is actually paid.
  • Apply service, age, and payment-frequency rules to a member’s timeline.
  • Detect errors caused by moving an entitlement or payment date to the wrong event.

Why Dates Must Be Kept Separate

Pension provisions often describe several events using similar language: a member earns benefit through service, satisfies a vesting condition, becomes eligible to start a pension, and receives payments. These events may occur years apart. Treating them as one date can misstate both the member’s legal rights and the pension cash flows.

The exact result depends on the plan’s wording. For example, a plan may credit benefit at each year-end, vest a member after five completed years of service, allow pension commencement at age 65, make installments due monthly in arrears, and issue each installment several days after its due date. A sound analysis records each rule separately before calculating dates.

Definition: Accrual is the earning or crediting of pension benefit through service or another plan-defined measure. Vesting is the point at which a member’s accrued benefit becomes nonforfeitable under the plan. Entitlement is the member’s legal right to a benefit under the plan rules; the right may be conditional on an event such as reaching a specified age. A benefit is payable on the date an installment is due under the plan’s payment terms. The payment date is when the money is actually transferred.

These terms require care. Some plan documents use “payable” to mean that a member has become eligible to commence a pension, while others use it for the date an installment is due. In a calculation, state the meaning being used and distinguish commencement eligibility from installment due dates. Also distinguish a benefit accrued during service from a vested right to retain that benefit after leaving employment.

A Practical Timeline Method

Start with the plan provisions, not with the date that seems most important in the member’s story. Extract each condition and identify what event it controls. A retirement date, for example, may stop further service accrual but need not be the vesting date or the first payment date.

1
Record the accrual rule.
Identify when service is credited, the benefit formula, and the date at which any salary or service measure is determined.
2
Apply vesting and entitlement conditions.
Determine when each condition is first met. If vesting occurs after a specified period of service, locate the completion date for that period rather than substituting a later termination date.
3
Determine commencement eligibility.
Apply the plan’s age, retirement, election, or other conditions to identify when the member can start the benefit.
4
Trace installments.
Use the stated payment frequency and whether payments are in advance or in arrears to find when each installment is due. Then apply any separate administrative delay to find the actual payment date.

The method avoids assuming that the end of employment creates a right that already arose earlier, or that an eligibility date is also a cash-payment date. If the plan uses a special anniversary convention, inclusive service rule, or administrative timetable, use that explicit rule. If it is not specified, state the date convention assumed rather than implying that the plan has settled it.

Worked Timelines

Worked Example: Vesting Occurs Before Termination

A hypothetical plan credits a pension of 1.25% of pensionable salary for each completed calendar year of service. Salary is fixed at $48,000 for this example. The member starts service on January 1, 2010. The plan provides that the member is vested after completing five years of service, with each calendar year completed at its close. The member leaves employment on December 31, 2021. Determine the vesting date, the accrued annual pension at termination, and the distinction between those dates.

Assumptions. The member remains in service through December 31, 2021, and has no breaks in service. The five-year requirement is measured by completed calendar years, so the fifth year is completed at the close of December 31, 2014. The member is alive throughout the stated period. There is no interest discounting or random timing model: this is a deterministic benefit calculation, not a present-value calculation.

Step 1: Calculate pension credited for one year. The annual accrual rate is 1.25% of $48,000:

$$ 0.0125 \times \$48{,}000 = \$600 $$

Thus each completed service year adds $600 per year to the stated annual pension.

Step 2: Locate vesting. The member completes service years 2010, 2011, 2012, 2013, and 2014 at the close of December 31, 2014. The five-year vesting condition is therefore met on that date under the stated convention. The member’s benefit remains vested when employment ends on December 31, 2021.

Step 3: Count accrued years through termination. The service years are 2010 through 2021 inclusive:

$$ 2021 - 2010 + 1 = 12 \text{ completed years} $$

Step 4: Calculate the accrued annual pension.

$$ 12 \times \$600 = \$7{,}200 \text{ per year} $$

The member has an accrued annual pension of $7,200 at termination, and that benefit is vested. The vesting date is not the termination date: the member first satisfied the five-year condition at the close of 2014. The benefit can remain deferred after termination; this example does not assume that it is immediately in payment.

Check. Five service years through 2014 establish vesting; twelve service years through 2021 produce twelve annual credits of $600, totaling $7,200. A common mistake is to say vesting first occurs on December 31, 2021 merely because that is the termination date. The plan’s five-year condition was met earlier.

Worked Example: A Vesting Anniversary and a Later Termination

A hypothetical plan provides a deferred annual pension credit of $500 for each completed service year and vests a member on the fifth anniversary of the service start date. A member begins service on January 1, 2010, completes service through December 31, 2021, and then terminates. The plan treats the fifth anniversary, January 1, 2015, as the vesting date. Find the annual pension accrued at termination and identify the dates of accrual, vesting, and termination.

Assumptions. Every calendar year from 2010 through 2021 counts as a completed service year; no service is interrupted. The member remains alive through termination. The $500 annual credit is deterministic, with no interest or mortality adjustment in this calculation.

Step 1: Establish the vesting date. Five years after January 1, 2010 is January 1, 2015. The member’s right becomes vested on that anniversary under the stated rule. This is not delayed until termination in 2021.

Step 2: Count the completed years at termination.

$$ 2010, 2011, \ldots, 2021 \quad\Longrightarrow\quad 2021 - 2010 + 1 = 12 \text{ years} $$

Step 3: Add the annual credits.

$$ 12 \times \$500 = \$6{,}000 \text{ per year} $$

The annual pension accrued by termination is $6,000. Credits accrue as each service year is completed; the nonforfeitable right is established when the vesting condition is met in 2015; employment terminates in 2021. Each date answers a different question.

Check. The six service years from 2010 through 2015 do not replace the full twelve-year count: the member continues earning credits after vesting while in service. Conversely, the later termination date does not reset the vesting date. The method is to apply the accrual rule over all credited years and the vesting rule at the first date its condition is satisfied.

Worked Example: Commencement, Installment Due Date, and Actual Payment

A hypothetical vested member retires from employment on May 31, 2025, after accruing a pension of $1,800 per month. The member turns age 65 on October 1, 2025. The plan allows commencement on the first day of the month after both retirement and age 65 have occurred. It pays monthly in arrears: each installment is due on the last day of the month it covers, and the administrator transfers it on the 10th of the following month. Find the commencement date, the first installment’s coverage month, due date, and actual payment date.

Assumptions. The member is alive on all dates through the first payment. The stated monthly amount is already determined; no interest, mortality probability, or benefit adjustment is being calculated. The plan’s payment dates are applied exactly as given.

Step 1: Find when both commencement conditions are satisfied. Retirement occurs on May 31, 2025, and age 65 is reached on October 1, 2025. Both conditions have occurred by October 1. The first day of a month after both events is November 1, 2025, so the pension commences then.

Step 2: Identify the first month covered. Since the commencement date is November 1, the first monthly installment covers November 2025. The monthly amount is $1,800.

Step 3: Find when that installment is due. Payments are in arrears, so the November installment is due at the end of November:

$$ \text{Installment due date} = \text{November 30, 2025} $$

Step 4: Find the actual transfer date. The administrator transfers the installment on the 10th of the following month. Therefore, the first $1,800 payment is actually transferred on December 10, 2025.

Check. November 1 is the commencement date, November 30 is the first installment’s due date, and December 10 is its actual payment date. A common error is to treat retirement on May 31 as the payment start date, or to pay the first arrears installment on November 1. Neither follows the plan’s age condition and arrears rule.

Why the Date Separation Matters

Accrual determines what benefit has been earned under the formula. Vesting determines whether that accrued benefit can be forfeited on leaving service. Commencement eligibility determines when the member may begin receiving it. The installment schedule determines when amounts fall due, and administration determines when funds are transferred. These distinctions matter in benefit statements, termination calculations, member communications, and cash-flow projections.

A useful consistency check is to ask four separate questions: What service has been credited? When did the member first satisfy the vesting conditions? When are all conditions for starting the pension satisfied? For each installment, when is it due and when is it paid? If a single date is being used to answer all four, the plan terms should be checked again.

Key takeaway: A member can accrue benefits before becoming vested, become vested before terminating employment, become eligible to commence a pension later still, and receive each installment after its due date. Determine each date from the rule that governs that specific event.

Common Exam Traps

  • Using termination as the vesting date. Apply the vesting service requirement to find the first date it is met. If a member starts January 1, 2010 and vests after five completed years, vesting occurs by the five-year anniversary in 2015, subject to the plan’s service-date convention. A 2021 termination does not make 2021 the original vesting date.
  • Stopping accrual at vesting. Vesting makes an accrued right nonforfeitable; it does not necessarily stop future benefit accrual while the member remains in service.
  • Equating commencement with payment. A pension can commence on the first day of a month while the first arrears installment is due at month-end and paid later.
  • Ignoring the plan’s date convention. “Five years of service” may be defined by completed years, an anniversary, or another rule. Use the plan wording and state any necessary assumption.
  • Confusing a right to a deferred benefit with a current installment. A vested member may have a legal right to a future pension without having a pension installment currently due.

Check Your Understanding

For each problem, trace the relevant dates from the stated hypothetical plan rules. Assume no unstated service breaks or payment delays.

  1. A plan credits $700 of annual pension for each completed calendar year and vests after three completed years. Service begins January 1, 2022 and continues through December 31, 2026. When does vesting first occur, and what annual pension is accrued at termination? (Answer: Vesting occurs at the close of December 31, 2024; accrued annual pension is $3,500.)
  2. A member starts service on July 1, 2018. A plan vests on the fifth anniversary of service and the member terminates on June 30, 2025. State the vesting date and explain whether termination is the first vesting date. (Answer: Vesting occurs July 1, 2023; no, the June 30, 2025 termination is later.)
  3. A vested member retires on September 30, 2026, and reaches the plan’s commencement age on February 1, 2027. The plan starts pensions on the first day of the month after both events have occurred. What is the commencement date? (Answer: March 1, 2027.)
  4. A pension commences on April 1, 2028. Installments are $1,250 monthly in arrears, due on the last day of each coverage month and transferred on the 5th of the next month. State the coverage month, due date, and actual payment date for the first installment. (Answer: April 2028; April 30, 2028; May 5, 2028.)
  5. A plan credits $400 of annual pension for each completed service year, vests after four years, and starts a pension on the first month after retirement and age 65 have both occurred. A member serves from January 1, 2020 through December 31, 2026, retires that day, and turns 65 on August 15, 2028. Find the accrued annual pension at termination, vesting date, and commencement date. (Answer: $2,800 per year; vested at the close of December 31, 2023; commencement is September 1, 2028.)
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