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Pennsylvania SERS Class AA

This page documents how FinZot models the Pennsylvania SERS Class AA defined benefit pension plan.

Who this plan covers: General members of Pennsylvania State Employees’ Retirement System, class-aa variant, before January 1, 2011: first became a SERS member (pre-July 2001 members only if they elected AA).

Employee contributions are the portion of salary that the employee pays into the pension fund.

FieldValue
Contribution Rate6.25% of salary
Tax TreatmentPre-tax (reduces taxable income)

Vesting determines when an employee has earned the right to receive pension benefits. The following formula must evaluate to TRUE for the employee to be vested:

OR(service_credits >= 5, AND(separation_age >= 60, service_credits >= 3))

Retirement eligibility determines when an employee can begin receiving pension payouts. The following formula must evaluate to TRUE:

OR(service_credits >= 5, AND(commencement_age >= 60, service_credits >= 3))

Formula Variables:

  • service_credits: Years of credited service
  • commencement_age: Age when pension payments commence

The annual pension benefit is calculated as:

Annual Benefit = Final Compensation × Benefit Factor × Service Credits

Final compensation is the salary figure used in the benefit calculation, typically an average of the employee’s highest-earning years.

FieldValue
MethodHighest Any Years
Years Averaged3

The benefit factor is a percentage multiplier that typically varies based on retirement age. Higher ages generally yield higher factors.

MIN(1 / MAX(1, service_credits), 0.025 * MIN(1, POWER(2.718281828459045, - 0.8247761 +(commencement_age_months - 540) / 300 *(1.248601 +(commencement_age_months - 540) / 300 *(0.1577279 +(commencement_age_months - 540) / 300 *(0.07113545 +(commencement_age_months - 540) / 300 *(0.02423279 +(commencement_age_months - 540) / 300 *(0.004210645))))) -(MIN(60, commencement_age + 35 - service_credits) - 60) *(0.06153907 +(MIN(60, commencement_age + 35 - service_credits) - 60) *(0.0005528055 +(MIN(60, commencement_age + 35 - service_credits) - 60) *(0.000008038706))))))

Formula Variables:

  • commencement_age: Age when pension payments commence
  • service_credits: Years of credited service

The COLA formula determines how pension benefits grow over time after retirement to keep pace with inflation.

current_pension_benefit

Formula Variables:

  • initial_pension_benefit: The annual benefit amount at retirement
  • years_since_retirement: Number of years since retirement began

Pension payouts from this plan are taxable as ordinary income.

Pennsylvania SERS Class AA members generally pay into Social Security alongside the pension, so a job with this plan is treated as covered and earns Social Security credits normally.


Note: FinZot’s pension estimates are for planning purposes only and may not reflect all plan provisions. For official benefit estimates, contact your plan administrator.