A pension annuity is not the same as a retail annuity you purchase from an insurance company. It is the income stream that a defined benefit (DB) pension plan pays you — the monthly payment you earned through years of employment. Understanding how that payment is calculated, what options you have at retirement, and who protects it if the plan fails are essential before you finalize any pension election.
How Pension Annuity Payments Are Calculated
Most defined benefit pension plans use a standard formula:
Monthly benefit = Years of service x Final average salary x Accrual rate
Example:
- 28 years of service
- Final 3-year average salary: $75,000
- Plan accrual rate: 1.5%/year
Monthly benefit = 28 x $75,000 x 0.015 = $31,500/year = $2,625/month
Accrual rates by type:
| Plan type | Typical accrual rate |
|---|---|
| Private sector DB plan | 1.0%–1.5%/year |
| Government/public plan | 1.5%–2.5%/year |
| Military retirement | 2.5%/year (for 20-year threshold) |
The “final average salary” is typically your highest 3 or 5 consecutive years, not just your last year.
Survivor Annuity Options
At retirement, you choose how your pension benefit is structured. The decision is usually irrevocable.
| Option | Your monthly benefit | What spouse receives after your death |
|---|---|---|
| Single life annuity | Maximum amount | Nothing |
| 50% joint and survivor | Reduced | 50% of your reduced benefit |
| 75% joint and survivor | More reduced | 75% of your reduced benefit |
| 100% joint and survivor | Most reduced | 100% of your reduced benefit |
| Period certain (e.g., 10-year) | Reduced | Remaining payments if you die within 10 years |
Federal law (ERISA): Married workers in private pension plans must elect a qualified joint and survivor annuity (QJSA) — at least 50% survivor benefit — unless the spouse consents in writing to waive it.
The reduction amount depends on the age difference between spouses. A 5-year age difference typically results in a 5–10% reduction in monthly benefit to fund the survivor option.
Cost-of-Living Adjustments (COLA)
Private sector pensions: Most do not include automatic cost-of-living adjustments. Your monthly payment in 2026 is the same in 2046 in nominal terms — meaning inflation erodes purchasing power over time.
Government and public pensions: Many include COLA provisions, either tied to CPI or a fixed annual increase (e.g., 2–3%/year). Federal employees (FERS/CSRS) receive CPI-based COLA. State and local plans vary significantly.
Impact of no COLA: At 3% annual inflation, a $3,000/month pension in 2026 has the purchasing power of approximately $1,814/month in 2046 — a 40% real reduction over 20 years.
PBGC Protection for Private Pensions
The Pension Benefit Guaranty Corporation (PBGC) is a federal agency that insures private-sector defined benefit pensions if the employer becomes insolvent or the plan is terminated.
2026 maximum PBGC guarantee:
| Retirement age | Maximum monthly guarantee (single life) |
|---|---|
| 65 | ~$7,362.50/month ($88,350/year) |
| 62 | ~$5,889/month |
| 60 | ~$4,786/month |
| 55 | ~$3,313/month |
Amounts are reduced for younger retirees and for joint-life elections.
Important: PBGC only covers private-sector plans. Federal, state, and local government pensions are not covered by PBGC — they are backed by the government entity.
Pension vs Lump Sum: The Key Question
Most pension plans offer a lump sum option at retirement. The choice between lump sum and annuity is significant and often irreversible.
Choose the annuity (monthly payments) when:
- You are in good health and expect to live into your mid-80s or longer
- You lack other guaranteed income sources
- Your spouse needs survivor income
- You are not confident managing a large lump sum
Choose the lump sum when:
- You are in poor health (shorter life expectancy)
- You have a financially sophisticated plan for the lump sum
- Your spouse has independent income and does not need the survivor benefit
- The implied rate of return on the annuity is low compared to conservative investment alternatives
Pension annuities are covered in the annuities hub alongside all other annuity types. Compare with the individual product in what is a pension annuity, and understand how pensions work at the workplace retirement plans hub.
The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy