401(k) Contribution Limits 2026: Elective Deferrals, Catch-Up & Total Contribution Cap
This guide maps searches like annual contribution limit 401k, 401k max contribution calculator, max out 401k calculator, and 401k required minimum distribution calculator confusion (RMD is withdrawal-phase, not contribution-phase) to the correct IRS concepts. We do not embed unverified 2026 dollar amounts—limits are announced by the IRS; use this page for structure, then confirm figures on IRS.gov.
Why Limits Matter for Every 401k Calculator on This Site
Elective deferrals cannot exceed the IRS cap
When you type a high deferral percentage, real payroll systems stop at legal and plan limits. Our 401k calculator does not auto-cap every edge case—mentally compare your modeled deferrals to official limits.
Catch-up contributions after age 50
Participants 50+ may contribute above the base deferral limit within IRS rules—verify the exact catch-up dollar amount annually.
Total contributions (Section 415(c) framework)
A separate limit applies to total annual additions (employee + employer + forfeitures allocated, depending on plan)—high earners may still hit this cap before hitting only the deferral limit.
Elective Deferral Limit (402(g) Context)
Traditional vs. Roth deferrals share one employee limit
The combined elective deferrals to traditional and Roth 401(k) in a year generally share a single dollar cap—plan text and IRS rules govern specifics.
Where to read the official table
Search IRS.gov for retirement plan contribution and benefit limits for the relevant year; bookmark the COLA table when published.
Catch-Up Contributions (Age 50+)
Catch-up allows additional elective deferrals beyond the standard limit for eligible participants—confirm eligibility age and amount each year.
Interaction with plan design
Your plan must permit catch-up; payroll must implement correct split between regular and catch-up tracking.
Employer Match, Nonelective, and Profit-Sharing (Conceptual)
Employer deposits are not employee elective deferrals but feed into total contribution tests. Model employer formulas with our 401k calculator with match; remember real life may include vesting schedules.
ADP, ACP, and Highly Compensated Employees (Awareness Only)
Why your allowed deferral might be reduced mid-year
Plans must satisfy nondiscrimination tests or use safe harbor designs. HCEs may see refunds or limits if tests fail—calculators on this site generally ignore testing mechanics.
How to Use Our Calculators Once You Know Your Limit
- 401k calculator — project balance with sliders + chart
- 401k estimator calculator — compact estimate
- 401k contribution paycheck calculator
- 401k calculator with match — employer additions vs. deferrals
- Early withdrawal calculator — distribution phase (separate topic)
Related Blog Articles (Limits in Context)
- Roth vs. traditional 401(k) — shared elective deferral bucket
- Catch-up contributions (age 50+) — extra deferrals beyond base limit
- Mega backdoor Roth — total contribution limit (415(c)) context
- Maximize employer match — deferrals vs. employer dollars
- Solo 401(k) for self-employed — deferrals + profit-sharing awareness
- Part-time eligibility (long-term) — when you may join the plan (separate from dollar limits)
- SEP / SIMPLE vs. 401(k) — small-business plan types next to deferral caps
- All articles
Authority, Updates, and YMYL Disclosure
We prioritize linking to IRS retirement plans over citing unverified numbers. .
Common misconceptions
“Only my elective deferrals count toward ‘the limit’”
There is an employee deferral limit (402(g) framework), and a separate total additions limit (415(c) framework) that can bind high earners when employer contributions are large—two different stories.
“If I’m 50+, the extra amount is a separate account”
Catch-up is an additional deferral type within the same plan account for most participants—payroll must track regular vs. catch-up buckets correctly.
“Blog tables replace my Summary Plan Description”
Plans may impose lower caps, different match formulas, or mid-year true-ups—SPD and notices win over generic education pages.
FAQ
Does this page list the exact 2026 dollar limit?
No—publish the authoritative figure only after IRS release. Use our tools with verified caps from IRS.gov.
What about SEP IRA or Solo 401(k)?
Different plans, different limits—search for solo 401k or SEP rules separately; this page focuses on workplace 401(k) framing.
Checklist: confirming limits for your situation
- Pull your last pay stub: YTD deferrals vs. intended annual election.
- Compare to the IRS deferral + catch-up figures for the tax year (not last year’s blog screenshot).
- Ask HR whether your plan imposes lower limits or true-up rules for bonuses.
- If you changed jobs mid-year, aggregate deferrals across all 401(k) plans for the year.