An occupational pension is a retirement plan your employer sponsors to help you build income for life after work. It holds contributions in a tax-advantaged trust, lets the money grow for decades, and pays it out when you retire. The two main types are defined benefit plans, which promise a specific monthly check for life, and defined contribution plans like the 401(k), where your retirement income depends on how much goes in and how the investments perform. Federal law under ERISA and the Internal Revenue Code sets strict rules for how these plans are funded, managed, and protected.
The Two Types and Who Carries the Risk
The single most important thing to know about your plan is which type it is, because that determines who is on the hook if investments go sideways.
A defined benefit plan promises you a specific monthly payment at retirement, calculated from a formula that typically uses your final average salary, your years of service, and a fixed multiplier. If the formula is 1.5% × years of service × final average salary, and you worked 30 years earning an average of $80,000 near the end, your annual pension would be $36,000. The employer bears all the investment risk. Actuaries calculate how much the plan needs today to cover every promised future payment, and the employer must contribute enough each year to meet that funding target.1Office of the Law Revision Counsel. 26 U.S. Code 430 – Minimum Funding Standards for Single-Employer Defined Benefit Pension Plans If investments underperform, the employer writes a bigger check. Your promised benefit stays the same. Benefits are almost always paid as a lifetime annuity, and married participants are automatically offered a joint-and-survivor annuity that continues paying a reduced amount to the surviving spouse.2Internal Revenue Service. When Can a Retirement Plan Distribute Benefits? DB plans remain common in government and unionized industries.
A defined contribution plan flips the structure. Nobody promises you a specific payment. You and your employer contribute money to an individual account in your name, you choose how it’s invested from a menu of funds, and your retirement income depends entirely on how much accumulates. You carry the investment risk. A strong market grows your balance; a downturn shrinks it, and your employer has no obligation to make up the difference. At retirement, the balance is yours to take as a lump sum, in periodic withdrawals, or as an annuity you purchase.2Internal Revenue Service. When Can a Retirement Plan Distribute Benefits?
How the Money Goes In
Occupational pensions are funded from three sources: your contributions, your employer’s contributions, and investment returns on the pooled money. The balance among the three depends on the plan type.
In a DB plan, the employer is legally required to contribute enough each year to meet the plan’s actuarially determined funding obligations.3Office of the Law Revision Counsel. 29 U.S. Code 1082 – Minimum Funding Standards Most DB plans are funded entirely by the employer, though some require employee contributions as well.
In a 401(k) or similar DC plan, your contributions come primarily through salary deferrals withheld from your paycheck before federal income tax is calculated, reducing your current taxable income.4Internal Revenue Service. 401(k) Plan Overview For 2026, the IRS caps those deferrals at $24,500. Workers aged 50 and older can contribute an additional $8,000 in catch-up contributions, and under a SECURE 2.0 provision, workers who turn 60, 61, 62, or 63 during the year can defer an extra $11,250 instead.5Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 That enhanced window disappears once you turn 64, so it’s worth paying attention to if you’re in that age range.
Employer money in a DC plan usually takes the form of a match tied to how much you defer. A common formula pays 50 cents on every dollar you contribute, up to 6% of your salary. If you contribute nothing, the match is zero. That’s money left on the table.
All plan assets must be held in a trust that is legally separate from the employer’s business.6Office of the Law Revision Counsel. 29 U.S. Code 1103 – Establishment of Trust If your employer goes bankrupt, creditors cannot reach the pension fund. The trustee manages the assets solely for the benefit of participants. Investment fees, administrative fees, and transaction fees are deducted from your account, and federal rules require the plan to disclose them to you at least annually. Reviewing those disclosures once a year is worth the few minutes, because high fees compound against you just as powerfully as returns compound for you.
When the Employer’s Money Becomes Yours
Your own contributions are 100% yours from day one. You can never lose them, even if you quit tomorrow.7Internal Revenue Service. Retirement Topics – Vesting Vesting rules apply only to what the employer puts in, whether that’s a 401(k) match or an accrued benefit in a DB plan.
Federal law gives employers two vesting structures to choose from:8Office of the Law Revision Counsel. 26 U.S. Code 411 – Minimum Vesting Standards
- Cliff vesting: you own 0% of employer contributions until you complete three years of service, at which point you become 100% vested all at once.
- Graded vesting: you vest incrementally over six years — 20% after two years, 40% after three, 60% after four, 80% after five, and 100% after six.
Employers can always vest you faster than the law requires, and many do. If you’re thinking about leaving a job, check your vesting schedule first. Walking away six months before you hit the next step can cost thousands in forfeited employer contributions.
Spousal Rights
If you’re married and enrolled in a defined benefit plan, your spouse has legal protections built into the plan itself. The default form of payment is a qualified joint and survivor annuity, which pays a reduced monthly amount during your lifetime and continues paying your surviving spouse after you die.9eCFR. 26 CFR 1.401(a)-20 – Requirements of Qualified Joint and Survivor Annuity You cannot switch to a single-life annuity or lump sum without your spouse’s written consent, witnessed by a notary or plan representative.
Most 401(k) plans are not subject to the automatic survivor annuity rules, but your spouse is still the default beneficiary of your account under federal law. Naming someone else requires your spouse’s signed consent. Divorce changes the picture: a qualified domestic relations order can assign part of your pension to a former spouse, and a new spouse’s rights attach only to whatever benefit remains.
Taking the Money Out
You can generally take distributions from an occupational pension without penalty once you reach age 59½.10Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions Your plan document may also set a normal retirement age — often 65 — at which full benefits become available.
Withdrawals before 59½ are hit with a 10% additional tax on top of ordinary income tax, unless you qualify for an exception. The most useful exceptions for employer plans include:
- Separation from service at 55 or older. If you leave your job during or after the year you turn 55, you can take distributions from that employer’s plan penalty-free. Public safety employees of state or local governments get this break starting at age 50.11Internal Revenue Service. Topic No. 558, Additional Tax on Early Distributions from Retirement Plans Other Than IRAs
- Unreimbursed medical expenses exceeding 7.5% of your adjusted gross income.
- Emergency personal expenses. Under SECURE 2.0, you can withdraw up to $1,000 once per calendar year for an unforeseeable personal or family emergency without the penalty.
- Substantially equal periodic payments based on your life expectancy, which you must continue for at least five years or until age 59½, whichever comes later.
One common misconception: the $10,000 first-time homebuyer exception applies only to IRAs, not to employer plans like a 401(k) or traditional pension.10Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
If your contributions went in pre-tax, every dollar that comes out is taxed as ordinary income.12Internal Revenue Service. Topic No. 410, Pensions and Annuities That applies to DB pension checks and DC withdrawals alike. The plan administrator withholds federal income tax and reports the distribution on Form 1099-R, which you’ll need at tax time.13Internal Revenue Service. About Form 1099-R After-tax contributions and Roth amounts rolled into the plan come out tax-free because the plan tracks your “basis.”
Required Minimum Distributions
The government doesn’t let you defer taxes forever. Starting at age 73, you must begin taking required minimum distributions from your retirement accounts each year.14Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs Under SECURE 2.0, the starting age increases to 75 for people born after 1959. Your first RMD is due by April 1 of the year after you reach the applicable age; every subsequent RMD is due by December 31.
There’s a valuable exception for employer plans. If you’re still working at the company that sponsors the plan and you own 5% or less of the business, you can delay RMDs from that specific plan until you actually retire. This doesn’t help with IRAs or plans from former employers, but it’s useful for people working past 73.
Missing an RMD used to trigger a 50% penalty on the shortfall. SECURE 2.0 reduced that to 25%, and to 10% if you correct the mistake within two years. Still steep enough to mark the deadline on a calendar.
Federal Insurance and What It Doesn’t Cover
The Pension Benefit Guaranty Corporation insures most private-sector defined benefit plans. If your employer’s pension plan runs out of money or terminates without enough assets to cover promised benefits, the PBGC pays a guaranteed portion of what you were owed.15Pension Benefit Guaranty Corporation. PBGC Pension Insurance: We’ve Got You Covered For 2026, the maximum monthly guarantee for someone starting benefits at age 65 is $7,789.77 as a straight-life annuity or $7,010.79 as a joint-and-50%-survivor annuity. These caps are lower if you begin benefits before 65 and higher if you start later.16Pension Benefit Guaranty Corporation. Maximum Monthly Guarantee Tables Most retirees fall well within these limits.
PBGC does not cover defined contribution plans like 401(k)s, profit-sharing plans, IRAs, or government and religious organization pensions. With a 401(k), your account balance is already held in a separate trust and belongs to you individually, so there’s nothing for PBGC to insure. The risk in a DC plan isn’t employer insolvency; it’s investment performance.
What to Do With Your Plan When You Leave a Job
When you leave an employer, you have several options for handling your vested balance. The right one depends on the fees, investment choices, and flexibility of each path.
- Leave the money in your former employer’s plan. Your balance stays invested and keeps growing tax-deferred. This makes sense when the old plan has low fees or strong investment choices you can’t match elsewhere.
- Roll it into your new employer’s plan, if the new plan accepts incoming rollovers. The transfer must go directly from one plan trustee to the other. If the check passes through your hands instead, the old plan is required to withhold 20% for federal income tax, and you’ll have to come up with that 20% from other funds to complete the rollover or face taxes and potential penalties on the shortfall.17Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
- Roll it into an IRA. This gives you the widest range of investment options and full control over fees. A direct rollover to a traditional IRA avoids the 20% withholding and preserves the tax deferral. A rollover to a Roth IRA is allowed, but the taxable portion becomes income in the year of conversion.
Whichever option you choose, the former plan files a Form 1099-R reporting the distribution to the IRS.13Internal Revenue Service. About Form 1099-R A direct rollover is coded differently than a cash distribution, so check that the 1099-R reflects what actually happened. Errors here can trigger an IRS notice.
If your former employer terminates the plan entirely, all participants become 100% vested regardless of how long they worked there.18Internal Revenue Service. Terminating a Retirement Plan The plan must distribute all assets, usually within 12 months of the termination date, and you’ll receive a rollover notice explaining your options and the tax consequences of each.