Annual Required Contribution (ARC)
The amount a pension plan sponsor should contribute each year to keep the plan on track toward full funding.
Annual Required Contribution (ARC) is a term from U.S. pension regulation and actuarial practice — typically a line item on IRS Form 5500, a concept in actuarial valuations, or a federal pension-insurance term from PBGC rules. The definition here is the practical participant-facing meaning, anchored in how the term actually appears in the data this site uses. Understanding Annual Required Contribution (ARC) is part of reading pension data defensibly. The underlying technical definition matters less than the participant-relevant interpretation: does this concept signal funded-status pressure, benefit-modification risk, or routine actuarial bookkeeping?
Each plan page on PensionWatch surfaces the Annual Required Contribution (ARC)-relevant numbers for that specific plan, so the general definition here translates into concrete data on the per-plan pages you actually use.
In Detail
The Annual Required Contribution, or Actuarially Determined Employer Contribution (ADEC) as it is now more commonly called, is the amount an actuary calculates a plan sponsor must contribute each year to fund promised benefits. It has two components: the normal cost (the cost of benefits earned in the current year) and the amortization payment (to pay down any existing unfunded liability). For private-sector plans, ERISA mandates minimum contributions that roughly correspond to the ARC, with penalties for underpayment. Public-sector plans have no federal funding mandate, the ARC is a recommendation, not a requirement.
This distinction is crucial because many government plan sponsors have a long history of contributing less than the full ARC, choosing to defer pension costs in favor of current spending on other priorities. When sponsors underpay the ARC, the unfunded liability grows both by the amount of the shortfall and by the assumed interest on that shortfall. This compounding effect means that years of underpayment can create a pension crisis that is far more expensive to resolve later. PensionRisk tracks whether plan sponsors are meeting their ARC as a key indicator of fiscal commitment to the pension system.
Frequently Asked Questions
What does Annual Required Contribution (ARC) mean in pension finance?
The amount a pension plan sponsor should contribute each year to keep the plan on track toward full funding.
Why does Annual Required Contribution (ARC) matter for my retirement?
The Annual Required Contribution, or Actuarially Determined Employer Contribution (ADEC) as it is now more commonly called, is the amount an actuary calculates a plan sponsor must contribute each year to fund promised benefits. It has two components: the normal cost (the cost of benefits earned in t...