Defined Contribution Plans: 2026 Limits, Vesting, and Withdrawals

A defined contribution plan is an employer-sponsored retirement account that you fund through payroll deferrals, often with employer matching or profit-sharing added on top, where the eventual payout depends on how much went in and how the investments performed rather than on any promised benefit. Unlike a pension, the investment risk sits with you. For 2026, you can defer up to $24,500 of your salary into most workplace plans, and total contributions from all sources can reach $72,000.¹

Which Plan You Have Depends on Where You Work

Private for-profit employers typically sponsor 401(k) plans, the most common arrangement in the country. Public schools, colleges, and 501(c)(3) charities offer 403(b) plans, which mirror 401(k) contribution limits and tax treatment but sit inside a different regulatory framework.²

State and local government employees and workers at certain tax-exempt organizations get 457(b) plans.³ A significant advantage: the 10% early withdrawal penalty that applies to 401(k) and 403(b) distributions before age 59½ does not apply to governmental 457(b) plans. If your government employer offers both a 457(b) and a 401(k) or 403(b), you can contribute the maximum deferral to each plan separately.

Smaller employers and the self-employed have their own options. A SEP IRA lets an employer (including a self-employed individual) contribute up to the lesser of 25% of compensation or $72,000 for 2026, with no employee salary deferral component.⁴⁵⁶ A Solo 401(k) works for self-employed people with no employees other than a spouse: you contribute as employee (up to $24,500) and as employer (up to 25% of compensation), all subject to the $72,000 total addition cap. Once a Solo 401(k) holds $250,000 or more, you must file Form 5500-EZ annually.⁷

2026 Contribution Limits

The IRS resets these numbers each year for inflation, and going over triggers penalty taxes.

Elective Deferral Limit

You can defer up to $24,500 from your paycheck into a 401(k), 403(b), governmental 457(b), or the federal Thrift Savings Plan in 2026.¹ SIMPLE IRA participants have a separate, lower cap of $17,000.⁶

Total Annual Addition Limit

Everything going into the account in a single year (your deferrals plus employer match plus profit sharing) cannot exceed the lesser of 100% of your compensation or $72,000.⁶ Catch-up contributions sit on top of this cap and don’t count against it.

Catch-Up Contributions

Turning 50 or older during 2026 unlocks an extra $8,000 beyond the standard $24,500 deferral, bringing your personal maximum to $32,500 in a 401(k), 403(b), or governmental 457(b).¹ SIMPLE IRA catch-ups are $4,000.⁶

SECURE 2.0 added a super catch-up starting in 2025 for participants who turn 60, 61, 62, or 63 during the calendar year. For 2026, that higher limit is $11,250 in a 401(k), 403(b), or governmental 457(b), pushing the personal deferral maximum to $35,750. SIMPLE participants in that age band get a $5,250 super catch-up.⁶ Once you turn 64, you drop back to the standard $8,000 catch-up.

Traditional vs. Roth Tax Treatment

Most defined contribution plans let you choose the tax track. Traditional contributions come out of your paycheck before income taxes are calculated, which lowers this year’s taxable income. Investments grow tax-deferred, and every dollar you withdraw in retirement is taxed as ordinary income. Roth contributions are made with after-tax money; qualified withdrawals (both original contributions and all investment growth) come out completely tax-free. To qualify, the Roth account must have been open at least five years and you must be at least 59½, disabled, or deceased.

There is no income limit for Roth contributions inside an employer plan, unlike a Roth IRA. That makes in-plan Roth one of the few direct routes for high earners.

Mandatory Roth Catch-Up for High Earners in 2026

Starting in 2026, if you earned more than $145,000 in FICA wages from your employer in the prior year (this threshold indexes for inflation), your catch-up contributions must go into a Roth account. Pre-tax catch-ups are off the table above that wage.⁸ If your plan doesn’t offer a Roth option, you cannot make catch-up contributions at all. Participants earning below the threshold can still pick either flavor.

Automatic Enrollment in Newer Plans

Any 401(k) or 403(b) plan established after December 29, 2022 must automatically enroll eligible employees at a default rate between 3% and 10% of pay, escalating one percentage point per year until it reaches at least 10% (and no more than 15%). You can opt out or change your rate at any time. Plans that existed before that date are grandfathered, and businesses with 10 or fewer employees are exempt.

Vesting of Employer Contributions

Money you defer from your own paycheck is yours immediately. Employer contributions vest on a schedule, and if you leave before you’re fully vested, you forfeit the unvested portion. Federal law allows employers two standard structures for matching contributions:⁹

Cliff vesting: 0% ownership until you hit three years of service, then 100% all at once.
Graded vesting: at least 20% after two years, 40% after three, 60% after four, 80% after five, and 100% after six.¹⁰

Some employer money vests immediately by law. Safe harbor 401(k) matches, SIMPLE 401(k) matches, and any qualified matching contributions (QMACs) used to satisfy nondiscrimination testing are 100% vested when made. A QACA safe harbor plan may instead use a two-year cliff. Full vesting is also required when a participant hits normal retirement age or the plan terminates.¹¹

Early Withdrawals and Penalty Exceptions

The tax code enforces the “retirement” part with a 10% additional tax on distributions taken before age 59½, on top of the ordinary income tax you already owe.¹² After 59½ you can take distributions freely, though pre-tax dollars remain taxable.

Several exceptions waive the 10% penalty (the distribution is generally still taxed as income):¹²

Separation from service in or after the year you turn 55 (age 50 for public safety employees of state or local governments), applied to that employer’s plan.
Total and permanent disability.
Death; beneficiaries owe no penalty.
Substantially equal periodic payments calculated under IRS-approved methods, taken at least annually.
Unreimbursed medical expenses exceeding 7.5% of adjusted gross income.
Distributions to a former spouse or dependent under a qualified domestic relations order.
Qualified reservist distributions.
Distributions resulting from an IRS levy on the plan.
Up to $5,000 per child for qualified birth or adoption expenses.
Up to $22,000 for economic losses from a federally declared disaster.
Distributions to a participant certified by a physician as terminally ill.
Up to the lesser of $10,000 or 50% of the account balance for victims of domestic abuse by a spouse or partner.
One emergency personal expense distribution per calendar year, capped at the lesser of $1,000 or the vested balance minus $1,000; a second requires either repayment of the first or a three-year wait.

Governmental 457(b) plans are exempt from the 10% penalty entirely, regardless of age. The exceptions above matter most for 401(k), 403(b), and IRA holders.

Borrowing From the Plan

Many 401(k) and 403(b) plans allow loans, though offering them is optional. Where available, the maximum is the lesser of 50% of your vested balance or $50,000, with repayment through substantially equal payments made at least quarterly over five years (longer if the loan bought your primary residence).¹³¹⁴ The catch: if you leave the job with a loan outstanding, most plans demand quick repayment, and any unpaid balance becomes a taxable distribution subject to the 10% penalty if you’re under 59½. One safety net exists. If the plan offsets your account balance to cover the unpaid loan after a job separation or plan termination, you have until the tax filing deadline (with extensions) to roll that offset amount into another retirement account.

Required Minimum Distributions

The IRS won’t let money sit in a tax-deferred account forever. Required minimum distributions kick in at an age set by your birth year:¹⁵

Born 1951 through 1959: RMDs begin at 73.
Born 1960 or later: RMDs begin at 75.

Your first RMD is due by April 1 of the year after you reach the applicable age. Every RMD after that is due by December 31. Delaying the first one to April means two distributions in a single tax year, which can push you into a higher bracket, so most people take the first in the year they turn 73 or 75.

If you’re still working and own less than 5% of the business, you can delay RMDs from your current employer’s plan until the year you actually retire. This exception applies only to that current plan, not to IRAs, SEP IRAs, SIMPLE IRAs, or plans from former employers. Missing an RMD costs a 25% excise tax on the shortfall, reduced to 10% if you fix the mistake within two years. Roth 401(k) accounts are no longer subject to lifetime RMDs starting in 2024, thanks to SECURE 2.0.¹⁵

Rollovers When You Change Jobs

Leaving a job means deciding what to do with the balance. A direct rollover sends the funds straight from the old plan to a new employer’s plan or an IRA; no tax is withheld and the money keeps growing tax-deferred.¹⁶

An indirect rollover hands you a check, and the plan is required to withhold 20% for federal income tax first.¹⁷ You then have 60 days to deposit the full original amount, including the 20% that was withheld, into an eligible retirement plan. If you deposit less, the shortfall is a taxable distribution and may trigger the early withdrawal penalty. Missing the 60-day window can sometimes be salvaged through IRS self-certification for qualifying hardships or a private letter ruling, but requesting a direct rollover from the start avoids the whole problem.

Beneficiaries, Spouses, and QDROs

Your retirement account passes according to the beneficiary designation on file with the plan, not according to your will. A form you filled out fifteen years ago can send money to an ex-spouse regardless of what your estate documents say. Review the designation after any major life event.

For married participants in an ERISA-covered plan, the surviving spouse is the automatic default beneficiary. Naming anyone else requires written spousal consent witnessed by a notary or plan representative.¹⁰ Without that waiver, the plan pays the spouse regardless of what the beneficiary form shows.

In divorce, retirement assets are split through a qualified domestic relations order. A QDRO is a court order directing the plan to pay a portion of the participant’s account to a former spouse, child, or other dependent.¹⁸ A former spouse receiving benefits under a QDRO can roll the funds into their own IRA tax-free. A divorce decree by itself won’t compel the plan administrator to split the account; a proper QDRO is required.

Creditor Protection

Money in a 401(k) or other ERISA-qualified plan gets broad federal protection from creditors. The Internal Revenue Code prohibits assignment or alienation of benefits, which generally keeps lawsuits and judgments away from the account.¹⁹ The main exceptions are QDROs in divorce and offsets tied to criminal convictions involving the plan.

IRA protection is weaker. In federal bankruptcy, traditional and Roth IRA assets (excluding rollovers from employer plans) are protected up to $1,711,975, a cap adjusted for inflation every three years.²⁰ Amounts rolled from a 401(k) into an IRA keep unlimited bankruptcy protection because they originated in an ERISA plan. Outside of bankruptcy, protection from ordinary creditor lawsuits varies significantly by state. If you have substantial IRA balances, your state’s specific rules matter.

1
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026
2
Internal Revenue Service. IRC 403(b) Tax-Sheltered Annuity Plans
3
Internal Revenue Service. IRC 457(b) Deferred Compensation Plans
4
Internal Revenue Service. SEP Contribution Limits (Including Grandfathered SARSEPs)
5
Internal Revenue Service. SIMPLE IRA Plan
6
Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs (Notice 2025-67)
7
Internal Revenue Service. One-Participant 401(k) Plans
8
Internal Revenue Service. Guidance on Section 603 of the SECURE 2.0 Act (Notice 2023-62)
9
Internal Revenue Service. Retirement Topics – Vesting
10
U.S. Department of Labor. FAQs About Retirement Plans and ERISA
11
Internal Revenue Service. Issue Snapshot – Vesting Schedules for Matching Contributions
12
Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
13
Internal Revenue Service. Retirement Topics – Plan Loans
14
Internal Revenue Service. Retirement Plans FAQs Regarding Loans
15
Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs
16
Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
17
Internal Revenue Service. Topic No. 413, Rollovers From Retirement Plans
18
Internal Revenue Service. Retirement Topics – QDRO: Qualified Domestic Relations Order
19
Office of the Law Revision Counsel. 26 U.S. Code 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans
20
Office of the Law Revision Counsel. 11 U.S. Code 522 – Exemptions