Pension Income

How it works

A defined benefit plan promises a benefit, not a balance. The formula is typically years of service multiplied by a percentage multiplied by a final-average or career-average pay figure, or in many union plans a flat dollar amount per year of service. The employer's trust, not the participant, carries the investment risk: contributions and trust returns fund the promise, and any funding shortfall is the sponsor's obligation to make up, not the retiree's.

Vesting schedules decide whether an accrual survives leaving the employer before retirement. ERISA caps how long private-sector vesting can take; state and local government plans set their own schedules, often longer. The benefit is payable at the plan's normal retirement age; commencing early applies a permanent actuarial reduction, and some plans instead increase the amount for delaying.

The payment form is elected once, at commencement, and is generally irrevocable. Single life pays the most per month and stops at death. Joint and survivor at 50%, 75% or 100% pays less but continues to a spouse. Life with a period certain guarantees a minimum number of payments regardless of when death occurs. Federal law makes a joint and survivor annuity the default for a married participant, and waiving it requires the spouse's written, witnessed or notarized consent.

Lump-sum offers, where available, are priced from IRS-prescribed segment rates and mortality tables, so higher prescribed rates convert the same promised benefit into a smaller lump sum. Private single-employer plans are insured by the PBGC up to a guarantee that varies by age and plan-termination year; multiemployer plans carry a separate, much lower guarantee. Government and church plans carry no PBGC insurance at all. Cash balance plans look like a 401(k) statement but are legally pensions, with the same spousal-consent rules. Payments arrive monthly, reported on Form 1099-R, with withholding elected on Form W-4P.

What it pays

The monthly amount comes from the plan formula, not from any market yield, and in most private plans it is fixed for life once set at commencement. Cost-of-living adjustments are common in public plans and rare in private ones; without one, inflation steadily erodes the real value of a nominal payment that never changes.

The survivor election is an explicit trade-off. A 100% joint-and-survivor option pays noticeably less per month than single life, and the gap widens with the age difference between spouses. A lump-sum election converts the stream into a balance that must be invested, shifting longevity risk and market risk from the plan's trust onto the retiree. Some plans offer a Social Security bridge or level-income option, paying more before a stated age and stepping down once Social Security is assumed to start.

The ultimate size of the benefit is set by years of credited service, the pay definition used in the formula (which may exclude bonuses or overtime), the plan's multiplier, and the actuarial reduction applied for commencing before normal retirement age.

Costs and taxes

There is no visible fee charged to the retiree; investment and administrative costs are absorbed inside the trust before any benefit is paid out. In the US, pension payments are ordinary income. Where the employee made after-tax contributions, part of each payment is a tax-free recovery of that basis, computed under the IRS Simplified Method and reflected in the taxable amount reported on Form 1099-R.

State treatment varies widely, from full exemption to full taxation, and some states exempt public pensions but not private ones. Federal law bars a state from taxing the pension of a former resident, so the state of residence when the payment is made generally controls. Pension income also counts toward provisional income for taxing Social Security benefits and toward the MAGI that sets Medicare IRMAA surcharges two years later.

A lump sum rolled directly into an IRA is not taxed at the time of the rollover; taken in cash it is fully taxable and subject to mandatory 20% federal withholding. Rules coordinating a non-covered public pension with Social Security have been changed by recent legislation, so current Social Security Administration guidance should be checked rather than older summaries. Where a plan is transferred to an insurer in a pension risk transfer, the PBGC guarantee is replaced by state insurance guaranty association coverage, with different limits.

Liquidity and time commitment

A pension in payment is not an asset that can be sold. The income stream belongs to the retiree; the capital standing behind it does not. The only liquidity events are a lump-sum window offered by the sponsor or a plan termination that converts benefits into annuities or lump sums, both decided by the sponsor, not the participant.

Sponsors periodically de-risk, either by offering a lump-sum window to former employees or by transferring obligations to an insurance company, and either move changes who stands behind the promise. Third parties advertise buying future pension payments for cash today; regulators have repeatedly characterized these arrangements as very high-cost loans in substance, not sales.

After commencement, ongoing effort is close to zero: confirm the deposit arrives, keep address and survivor information current, and reconcile the annual Form 1099-R against expectations.

How it goes wrong

Electing single life without absorbing that payments stop entirely at death is a common and irreversible error, leaving a surviving spouse with nothing from the plan. Commencing early for convenience locks in a permanent actuarial reduction that cannot later be undone. Planning around a fixed nominal payment as though it were fixed in real terms, in a plan with no cost-of-living adjustment, understates how much purchasing power erodes over a multi-decade retirement.

Sponsor insolvency in an underfunded plan hands the obligation to the PBGC, which pays only up to its guarantee — a shortfall that can be material for higher earners. Multiemployer plan insolvency is worse still, since its guarantee structure is far lower than the single-employer one. Accepting a lump-sum window without examining the discount rate and mortality assumptions embedded in the offer can mean giving up value without realizing it.

Losing the record of after-tax employee contributions causes the entire payment to be treated as taxable when part of it should be a tax-free return of basis. Relocating to a state that taxes pension income after budgeting on a state that exempts it changes the math after the decision is already made. Treating a cash balance statement as a fully owned account, rather than a pension subject to distribution rules and spousal consent, leads to the same irreversible-election mistakes as a traditional plan.