Accrued Pension Liability on the Government Balance Sheet

A public pension plan promises a retired teacher $3,000 per month for life. That obligation exists today, yet the government may not have set aside the money to pay it. How should accountants measure and display this liability? Government accrued pension liability on the balance sheet hinges on a single contentious choice: the discount rate used to convert future pension payments into today’s dollars. Change the rate by one percentage point, and the reported liability swings by trillions.

The pension promise and the balance sheet problem

A public employee works for 30 years and retires with a pension of $4,000 per month for an expected 25-year retirement. The government promised this. From an economic standpoint, the government has a liability: an obligation to pay out cash in the future based on past work performed.

Yet this liability does not appear on most public-sector balance sheets the way a municipal bond does. Why? Pensions are often accounted for separately, in the financial statements’ notes or in “required supplementary information” rather than as a line item in the primary balance sheet. This off-balance-sheet treatment is a legacy of how governments report finances — not fraud, but a distinct framework that can obscure the true scale of future obligations.

When a liability does appear on the balance sheet, its size depends critically on how future payments are translated into today’s dollars. This is where the discount rate enters.

The discount-rate problem

To measure a pension liability, an actuary must:

1. Estimate all future pension payments (decades of monthly checks to thousands of retirees)
2. Discount those payments to present value using a discount rate
3. Sum the present values

The discount rate is a financial assumption about how to value a future obligation. It reflects the return the pension plan expects to earn on invested assets. A high discount rate assumes the plan’s investments will grow at a high rate, so less cash is needed today to fund future payments. A low discount rate assumes lower investment growth, so more cash is needed today.

Here is the tension: What is the right discount rate?

One school argues that pension liabilities should be discounted at a low, risk-free rate — the yield on a 30-year Treasury bond, perhaps 2.5%. This reflects the government’s cost of borrowing and ensures the liability is measured conservatively. If invested assets fail to earn the high-growth assumption, the government will face a shortfall.

The other school argues that pension liabilities should be discounted at the expected return on the plan’s invested assets — often 7% to 8% per annum. The logic is that pension-plan assets are invested in stocks and bonds expected to return 7–8%, so a 7–8% discount rate is appropriate. This lower liability reflects confidence in asset growth.

The difference is vast. A $100 billion stream of future pension payments, discounted at 7%, might be valued at $40 billion. Discounted at 2.5%, it might be valued at $80 billion. The same obligation, two vastly different reported sizes.

Why governments choose higher discount rates

Most public pension plans in the U.S. use an assumed return of 7% to 7.5% on their portfolios. This is not a market reality — long-term historical stock returns have averaged about 10%, but bond yields are lower, and modern diversified portfolios likely earn closer to 5–6% in a low-interest environment. But many plans stick with 7% or above.

Why? Political and financial incentives. A higher discount rate makes the unfunded pension liability appear smaller. A smaller reported liability means:

• The government can report a healthier balance sheet to investors and taxpayers
• Annual required employer contributions (the annual cash the government must add to the pension fund) appear lower
• Legislators face less pressure to cut benefits or raise taxes to fund the shortfall

Overstating expected returns and using a high discount rate is sometimes called “pension accounting optimism” or “assumption creep.” Over decades, it allows the true scale of underfunding to fester out of sight.

Present value and the pension obligation

Here is a concrete example. Suppose a retiree is entitled to $2,000 per month starting today, for 20 years (240 payments). The nominal cost is $480,000. But what is the present value?

At a 7% discount rate, the present value is roughly $270,000. At a 2.5% discount rate, the present value is roughly $410,000. The 4.5 percentage-point difference in discount rate creates a $140,000 gap in the measured liability — and that is for a single retiree. Scale this to a plan with 500,000 retirees, and the difference is tens of billions.

The discount rate choice is not merely an accounting quirk; it determines the reported financial health of the government and shapes tax and benefit policy.

Funded ratio and underfunding

A pension plan’s funded ratio is assets held in the pension trust divided by the accrued liability (measured at the plan’s chosen discount rate). A 100% funded ratio means the plan has enough assets to pay all promised benefits. A 70% funded ratio means a 30% shortfall.

Many public pension plans in the U.S. are underfunded: their assets are worth less than the present value of their liabilities. This means future employer contributions (and potentially benefit cuts) will be needed to cover the gap. If a plan is 70% funded with a $100 billion liability, it needs $30 billion in additional funding over time.

The underfunding is not always visible to ordinary citizens. A city’s general balance sheet may not show the pension liability clearly. The liability lives in actuarial valuations, audited financial statements, and footnotes that few read. Yet it represents a real obligation that future taxpayers will face.

Accounting standards and required contributions

The Governmental Accounting Standards Board (GASB) sets the rules for how governments report pension obligations. GASB requires disclosure of the accrued pension liability in the notes to the financial statements and in “required supplementary information” (RSI). The RSI shows the funded ratio, the unfunded actuarial liability, and trends over time.

Separately, actuarial standards require the plan to calculate the “annual required contribution” (ARC) or the employer’s required contribution — the annual cash payment needed to amortize the unfunded liability over a period (often 30 years) and to accrue benefits earned in the current year. This is the cash the government must budget for and pay into the pension fund.

If a government underfunds its contributions (pays less than the ARC), the unfunded liability grows. This is common: many states and municipalities have contributed less than the ARC for years, allowing underfunding to compound.

Market value vs. smoothed values

Pension-plan assets are valued either at market (fair value) or at smoothed values. Smoothed values average market prices over several years, dampening the impact of year-to-year market swings. A plan with smoothed values may report $50 billion in assets even if the market value is $48 billion.

Smoothing can obscure the severity of underfunding in down markets and reduce the reported need for employer contributions in recession years. A spike in contributions after a market crash can strain government budgets. However, it also prevents over-reactive cuts to contributions in up markets.

Off-balance-sheet liability and transparency

The fact that pension liabilities do not always appear on the primary balance sheet is a source of controversy. Critics argue it conceals the true size of government obligations from taxpayers and elected officials. Proponents note that pension plans are separate entities with separate financial statements, and that the primary balance sheet would become unwieldy if all future obligations appeared there.

The trend, driven by GASB and by increasing scrutiny from credit-rating agencies and bond investors, is toward greater transparency. Audited financial statements now require clear disclosure of the accrued pension liability and the discount-rate assumption. Credit-rating agencies adjust governments’ ratings for unfunded pension liabilities when they assess creditworthiness.

Comparison to private-sector pensions

In the private sector, pension liabilities are measured using discount rates tied to high-quality corporate bond yields (approximately 4–5% currently). This is more conservative than the 7% assumption common in public pensions. Private employers are required to fund their pension obligations annually, and underfunding can trigger Pension Benefit Guaranty Corporation (PBGC) intervention.

Public-sector pensions have more latitude. Many underfunded public plans are allowed to operate with contribution policies that do not fully amortize the liability, relying on future investment returns and future contributions. This works if returns materialize; it fails if returns disappoint or if budget pressure prevents contributions from rising.

See also