Workers saving for retirement through a 401(k) can set aside up to $24,500 starting January 1, 2026, a $1,000 increase over the $23,500 cap that applied in 2025. The IRA contribution limit also rises, climbing to $7,500 from $7,000. The figures, published by the IRS in Notice 2025-67, affect tens of millions of savers across traditional and Roth accounts, but the real gap between these two savings vehicles has less to do with the statutory numbers than with what happens after the money goes in.
Why the $24,500 cap changes the math for 401(k) savers
The headline numbers tell a straightforward story: 401(k) participants can now defer $24,500 of their own pay, while IRA holders are capped at $7,500. That is a $17,000 difference in annual contribution room. But the more consequential factor is the employer match that only 401(k) plans offer. When a company matches 50 cents on the dollar up to 6% of salary, a worker earning $80,000 who maxes out contributions collects an additional $2,400 in free money each year. IRA savers have no equivalent benefit. Over a decade of compounding, that match advantage can produce a six-figure gap in account balances between two workers in the same income band, even if both hit their respective caps every year.
The 2026 increase, while modest in isolation, compounds that divergence. Each additional dollar a 401(k) participant defers is potentially eligible for matching, magnifying the statutory bump beyond its face value. IRA savers, by contrast, gain $500 in new contribution room with no matching multiplier. The structural tilt toward workplace plans grows wider with every cost-of-living adjustment.
Tax treatment adds another layer to the comparison. Traditional 401(k) contributions reduce current taxable income, while Roth 401(k) deferrals are made with after-tax dollars but can be withdrawn tax-free in retirement if rules are met. IRAs offer the same basic menu of traditional and Roth options, yet the much smaller annual cap limits how much income workers can shield or shift between tax years. For high earners who can afford to save aggressively, the higher 401(k) ceiling increasingly becomes the primary tool for long-term tax planning.
IRS guidance and the numbers behind the 2026 limits
The IRS released the 2026 figures through its official newsroom bulletin, confirming that the basic limit on elective deferrals under Internal Revenue Code Section 402(g) is $24,500 in 2026, up from $23,500 in 2025. The same release set the annual IRA contribution limit at $7,500, up from $7,000. Both figures apply to traditional and Roth versions of each account type, subject to the usual income-based eligibility rules for deducting or making Roth IRA contributions.
The authoritative legal text appears in Notice 2025-67, published in Internal Revenue Bulletin 2025-49. That document lays out the full schedule of cost-of-living adjustments for retirement plan dollar limitations, including thresholds for 403(b) plans, defined-benefit pensions, and the compensation caps used in nondiscrimination testing. The elective deferral figure of $24,500 is carried consistently through the tables, providing the formal basis for plan sponsors to update their documents and payroll systems ahead of the 2026 plan year.
More context comes from the IRS compilation of COLA increases, which tracks how retirement plan limits move over time with inflation. The 2026 bump follows the same statutory formula that has governed prior adjustments, reflecting changes in the cost-of-living index rounded to the nearest $500 increment. While that rounding can make some years’ increases appear lumpy, the long-run pattern is clear: gradual, inflation-linked expansion of tax-advantaged saving room.
What the new limits mean for savers
For workers already maxing out their 401(k), the higher ceiling is a simple invitation to save more in a familiar vehicle. Someone contributing the full $24,500 in 2026, with a 4% employer match on an $80,000 salary, could see a total of $27,700 flow into the plan over the year. By contrast, a saver limited to a $7,500 IRA contribution would need substantial taxable investing on top of that to keep pace with the combined power of higher deferrals and employer dollars in a workplace plan.
Those not yet hitting the cap can use the new limits as a planning benchmark rather than an all-or-nothing target. Incremental increases-such as raising deferrals by one percentage point of pay each year-can gradually close the gap between current savings and the maximum allowed, especially when automated through payroll. Even modest boosts, when paired with an employer match and decades of compounding, can materially improve retirement readiness.
Ultimately, the 2026 changes underscore a familiar but often overlooked reality: tax rules do not just set ceilings; they shape behavior. By continuing to widen the numerical distance between 401(k) and IRA contribution limits, the system steers long-term savers toward employer-sponsored plans. Understanding that design-and taking full advantage of it where possible-may matter more for retirement outcomes than the specific dollar amount of any single year’s adjustment.
