Pension debt is money a public employer owes to its pension fund because it did not contribute enough in past years

When you see "pension debt" listed on Transparent California, it refers to unfunded liabilities — the gap between what a public agency (usually a city, county, or school district) promised to pay its current and retired employees in pensions, and how much money the pension fund actually has set aside to cover those promises.

Think of it this way: a city promises a police officer a pension of $50,000 per year for life. The pension fund calculates it needs $1 million today to pay that promise. If the fund only has $800,000, the $200,000 gap is part of the unfunded liability. That gap is what shows up as pension debt on Transparent California.

Pension debt does not appear as a single bill the employer owes today. Instead, it accumulates over time because the employer did not set aside enough money when employees were working. The employer now has to pay it back through higher contributions to the pension fund in future years — money that comes from taxpayers, not from the pension fund's investments.

Key Takeaways

  • Pension debt is the shortfall between what a public employer promised in pensions and what the pension fund has saved to pay those promises.
  • Transparent California shows pension debt as part of a city or county's long-term financial obligations, not as a current bill due.
  • The employer pays down pension debt by making larger contributions to the pension fund each year, which increases the cost of government services.
  • Pension debt varies widely by agency and by which pension system they use — CalPERS, CalSTRS, or a local system — because each has different assumptions about investment returns and employee lifespans.
  • A single agency may show multiple pension debts if it participates in more than one pension fund.

How pension debt appears on Transparent California

Transparent California pulls financial data from public records that cities and counties file with the state. When you look up an agency, you will see pension debt listed under liabilities or long-term obligations — usually broken down by which pension system the agency belongs to.

The most common pension systems in California are CalPERS (California Public Employees' Retirement System) and CalSTRS (California State Teachers' Retirement System). Larger cities and counties may also have their own local pension systems. Each system calculates its own unfunded liability, so a single city might show pension debt to CalPERS, CalSTRS, and a local system all at once.

The number you see is usually stated in millions of dollars and represents the employer's share of the unfunded liability — not the total unfunded liability of the entire pension system. For example, if CalPERS has a $100 billion unfunded liability statewide, a single city's share might be $50 million.

Why pension debt exists and keeps growing

Pension debt builds up for several reasons. When the stock market performs poorly, pension fund investments lose value, and the fund falls further behind on what it promised to pay. When employees live longer than expected, the fund has to pay pensions for more years than it budgeted. When an employer grants a pension increase — a raise to the benefit amount — without setting aside extra money, the unfunded liability jumps immediately.

In California, many public agencies also made contribution decisions in the 1990s and 2000s based on the assumption that pension fund investments would return 8% or more per year. When returns fell short, the gap widened. Some agencies also took contribution holidays — years when they did not contribute to the pension fund at all — because they thought the fund was overfunded. When the market turned down, those decisions left the fund short.

Pension debt does not shrink on its own. The employer has to pay it down by contributing more money to the pension fund each year. Those contributions come from the agency's operating budget, which means less money for schools, roads, police, or other services — or higher taxes and fees to cover the gap.

How employers pay down pension debt

Public agencies reduce pension debt by making larger annual contributions to their pension fund. The contribution amount is set by the pension system's actuary — a specialist who calculates how much money the fund needs to cover all promised benefits.

The actuary looks at how many employees the agency has, how much they earn, how long they are expected to live in retirement, and how much the pension fund's investments are expected to earn. Based on those numbers, the actuary tells the agency: "You need to contribute X% of payroll this year." If the fund is underfunded, that percentage is higher than it would be if the fund were fully funded.

Some pension systems allow employers to make extra payments to reduce unfunded liability faster. CalPERS, for example, lets agencies make lump-sum payments. But most agencies cannot afford to do this because their budgets are already tight. Instead, they pay the required contribution each year and hope investment returns improve.

What pension debt means for taxpayers and service users

Pension debt affects you because it is a claim on public money. When a city or county has to pay $10 million more to its pension fund because of unfunded liability, that is $10 million that cannot go to fixing potholes, hiring teachers, or maintaining parks. The agency either has to cut services, raise taxes or fees, or both.

Pension debt also makes it harder for public agencies to respond to emergencies or unexpected costs. An agency with high pension debt has less flexibility in its budget because a large portion of its revenue is already committed to pension contributions.

Over time, pension debt can affect the financial health of a city or county. Agencies with very high unfunded liabilities sometimes face credit downgrades, which makes it more expensive to borrow money for infrastructure projects. In extreme cases, unfunded pension liabilities have contributed to municipal bankruptcies.

How to read pension debt numbers on Transparent California

When you look up an agency on Transparent California, the pension debt figure is usually listed as a single number in millions of dollars. To understand what that number means, you need context.

Compare the pension debt to the agency's annual budget. If a city has a $100 million annual budget and $50 million in unfunded pension liability, that is a significant burden. If a large county has a $5 billion budget and $200 million in unfunded liability, the burden is smaller relative to the agency's size.

You can also look at the trend over time. If you check the same agency's data year after year, you can see whether pension debt is growing or shrinking. Growing debt usually means the fund's investments are underperforming or the agency is not contributing enough. Shrinking debt means the agency is paying it down faster than new liabilities are building up.

Keep in mind that the number on Transparent California is a snapshot from a specific year — usually one or two years old — because public agencies file their financial reports on a delay. The actual current unfunded liability may be different.

Differences between pension systems and their debt levels

CalPERS and CalSTRS calculate unfunded liability differently, so comparing pension debt across agencies can be misleading if they use different systems. CalPERS serves police, firefighters, and general public employees. CalSTRS serves teachers. Some large cities and counties run their own pension systems.

Each system has its own assumptions about how long retirees will live, what investment returns will be, and how much employees will earn over their careers. A system that assumes lower investment returns will show higher unfunded liability than a system with more optimistic assumptions — even if both systems are equally well-funded in reality.

CalPERS has been gradually lowering its assumed investment return rate from 7.5% to 6.8% over several years, which has increased the unfunded liability figures for all CalPERS employers. This does not mean the funds got worse — it means the calculation became more conservative and realistic.

Frequently Asked Questions

Is pension debt the same as the pension fund's total unfunded liability?

No. The total unfunded liability is what the entire pension system owes. Pension debt on Transparent California is usually just one employer's share of that liability. For example, CalPERS has a statewide unfunded liability of tens of billions of dollars, but each city or county shows only its own portion.

Can pension debt be forgiven or written off?

No. Pension debt represents a legal obligation to employees who earned their pensions through work. The employer cannot simply cancel it. The only way to reduce pension debt is to contribute more money to the pension fund or to change future pension benefits for new employees — which many California agencies have done by moving new hires to lower-benefit pension tiers.

Does a high pension debt number mean the city or county is in financial trouble?

Not necessarily. A large agency with a big budget can carry significant pension debt without crisis. A small agency with the same dollar amount of debt might struggle more. The key is the ratio of pension debt to annual budget and whether the agency is paying it down over time or letting it grow.

Why do some agencies have pension debt and others do not?

Agencies with fully funded pension systems show little or no unfunded liability. This usually happens when the agency made consistent contributions over many years, the pension fund's investments performed well, or the agency has fewer retirees relative to active employees. Newer agencies or those that granted large pension increases without funding them typically show higher debt.

Will pension debt ever go away?

Yes, but it takes decades. Agencies pay down unfunded liability through annual contributions, and as the fund's investments earn returns, the gap closes. However, new liabilities can build up if employees live longer than expected or if the market performs poorly, so the process is ongoing rather than a one-time fix.