The 2026 401(k) Limit Raise, Priced Out: What an Extra $1,000 a Year Buys You
The IRS raised the 401(k) elective deferral limit for 2026 to $24,500 — $1,000 more than 2025. That sounds like a rounding error. Compounded for 30 years, it is not. Here is exactly what the new limits are worth, computed year by year.
In November 2025 the IRS announced the 2026 retirement plan limits (IR-2025-111). The headline number: the 401(k) elective deferral limit goes from $23,500 to $24,500. News coverage stops there. The useful question is what that extra $1,000 a year actually becomes by the time you retire — so we ran it through the same year-by-year engine that powers our 401(k) calculator, with every assumption shown.
The setup, so you can argue with it
All figures below assume: year-end contributions held at the legal maximum every year ($24,500 under the 2026 limit, $23,500 under the 2025 limit — no assumed growth in future limits, which the IRS adjusts by cost-of-living, not by your salary), a 7% nominal annual return, and fund fees of 0.35% deducted from the return each year (a 6.65% net growth rate, and a simplification — real funds vary year to year). Starting balance is zero. No employer match, so the limit change itself is isolated. Change any of these in the calculator and the whole table moves.
What maxing the 2026 limit looks like
| Horizon | You contributed | Balance at year-end | Growth share |
|---|---|---|---|
| 10 years | $245,000 | $332,958 | $87,958 |
| 20 years | $490,000 | $966,826 | $476,826 |
| 30 years | $735,000 | $2,173,548 | $1,438,548 |
Note the shape of that table: by 30 years, growth contributes more than your contributions — $1,438,548 of the $2,173,548 total. That is the actual argument for using the limit every year it is affordable: dollars put in early do the most work.
What the extra $1,000 (2026 vs 2025) is worth on its own
Run the identical scenario at the old $23,500 cap and the account ends at $2,084,832 instead of $2,173,548. The 2026 raise alone — a flat $1,000 more a year — adds $88,716 over 30 years. Of that, $30,000 is the extra principal you actually put in; the remaining $58,716 is thirty years of compounding on it. Fees matter here too: raise the expense ratio from 0.35% to 1% and the same contribution schedule ends at $1,936,926 — about 10.9% less, which is why the calculator exposes the fee field instead of hiding it.
The catch-up numbers are the sleeper story
The deferral limit got the headlines, but for people in their 50s and early 60s the catch-up rules are worth more. The standard 50+ catch-up rises from $7,500 in 2025 to $8,000 in 2026 — $8,000 a year for 15 years turns $120,000 of contributions into $195,695 at the same return. The SECURE 2.0 super catch-up works differently: it only applies in the years you turn 60, 61, 62, or 63, and its $11,250 replaces the standard catch-up rather than stacking on top — so for those four years the combined employee limit reaches $35,750. Four year-end contributions of $11,250 ($45,000 total) are worth $49,691 right after the fourth one, and about $100,890 if you value them at year 15 and leave them invested. If you are 59 and have been telling yourself it is too late, these rows are the rebuttal — run your own age and numbers in the 401(k) calculator.
What this does not tell you
A bigger 401(k) balance is not automatically a bigger retirement — that depends on what you withdraw and when, and every projected balance above is a hypothetical at an assumed return, not a prediction. The retirement withdrawal calculator models the spending side, and the 401(k) withdrawal calculator prices the tax — and, generally, the 10% additional tax — on taking money out before 59½, with exceptions such as the rule of 55. The 401(k) loan calculator is worth a look too: borrowing from your own balance has an opportunity cost that most loan pitches skip.
The bottom line
The 2026 raise is worth about $89,000 to a 30-year maxer — and the contribution rule behind it requires no market forecast at all, only the discipline to use it. The values, of course, assume returns; the rules are the part you control. One more 2026 wrinkle worth knowing: if your prior-year FICA wages from the plan sponsor exceeded $150,000, your catch-up contributions must now be Roth — the pre-tax catch-up door closes at higher incomes.
Frequently asked questions
What is the 401(k) contribution limit for 2026?
The elective deferral limit is $24,500, up from $23,500 in 2025 (IRS IR-2025-111, issued November 2025). If you are 50 or older you can add an $8,000 catch-up contribution (up from $7,500 in 2025), and in the years you turn 60–63, the SECURE 2.0 super catch-up replaces it with a higher $11,250 limit.
Is an extra $1,000 a year really worth five figures?
Yes — just under $89,000. Holding contributions at the legal maximum, $24,500 a year instead of $23,500 at a 7% return minus 0.35% in fund fees ends about $88,700 higher after 30 years ($2,173,548 vs $2,084,832). Of that gap, $30,000 is the extra principal and about $58,700 is growth.
Should I max the 401(k) before a Roth IRA?
Capture any employer match first — it is an immediate return no investment can reliably beat, though match formulas and vesting schedules vary by plan. After the match, the choice between pre-tax 401(k) and Roth IRA is about your tax rate now versus retirement; the Roth IRA calculator shows the long-run difference for your bracket.
What changed for catch-up contributions in 2026?
Two things. The standard 50+ catch-up rises from $7,500 to $8,000. And the SECURE 2.0 super catch-up — in effect since 2025 — lets people aged 60–63 defer $11,250 instead of the standard catch-up, so their combined employee limit reaches $35,750. Note: starting with 2026, catch-up contributions generally must be Roth if your prior-year FICA wages from that employer exceeded $150,000.
Do employer contributions count toward the $24,500?
No. The $24,500 is what you defer from your own paycheck. Employer matches and profit-sharing sit under a separate annual-additions cap — $72,000 for 2026 or 100% of your compensation, whichever is less — and catch-up contributions sit outside that cap.
Where can I run these numbers with my own salary?
The 401(k) calculator projects your balance year by year with your actual salary, deferral percentage, match rules, fees, and salary growth — and exports the full table as CSV. The retirement savings calculator does the same for mixed 401(k) + IRA plans.