New 401(k) Contribution Limits for 2026: IRS Updates, Catch-Up Rules, and Employer Impact

2026 IRS 401(k) Contribution Limits: What Changed

The IRS raised the main 401(k) limits for 2026 in Notice 2025-67. The increases are modest, in line with a year of cooler inflation, but they compound: someone contributing the maximum every year is now allowed roughly a thousand dollars more of tax-advantaged room than in 2025, before any employer match.

2026 Employee 401(k) Contribution Limit

The elective deferral limit — the amount you can contribute from your own salary — is $24,500 for 2026, up from $23,500 in 2025. That figure covers traditional pre-tax and Roth 401(k) contributions combined. Splitting your contributions between the two does not give you two separate limits, which is the single most common misreading of this number.

The same $24,500 applies to 403(b) plans, most 457(b) plans, and the federal Thrift Savings Plan.

Catch-Up Contributions at 50 and Over in 2026

If you are 50 or older at any point during 2026, you can add a catch-up contribution of $8,000, up from $7,500 in 2025. That brings your personal ceiling to $32,500.

Eligibility runs on the calendar year rather than your birthday. Turning 50 in December still gives you the full catch-up for that year.

The Ages 60–63 Super Catch-Up

SECURE 2.0 created a larger catch-up for a narrow age band. If you are 60, 61, 62 or 63 during 2026, your catch-up is $11,250 instead of $8,000, lifting your personal ceiling to $35,750. This amount did not change from 2025.

Note the band closes. At 64 you revert to the standard $8,000 catch-up, so the window is four years wide and worth planning around rather than discovering late. Offering it is also optional for the plan sponsor — confirm with your provider that yours has adopted it before budgeting on the higher figure.

Employer Match and Total 401(k) Contribution Limits for 2026

Everything landing in your account in one year — your deferrals, the employer match, profit sharing and any after-tax contributions — is capped at $72,000 for 2026, up from $70,000. Catch-up contributions sit outside that cap, so the practical ceilings are $80,000 at 50 and over and $83,250 for the 60–63 band.

One limit that gets overlooked: only the first $360,000 of compensation counts for 2026, up from $350,000. A match expressed as a percentage of salary stops accruing above that line regardless of what you actually earn.

The Roth Catch-Up Rule Takes Effect in 2026

This is the change that actually matters this year, and it is a rule change rather than a number. Under section 603 of SECURE 2.0, higher earners can no longer make catch-up contributions on a pre-tax basis. Those contributions must be designated Roth — taxed now, withdrawn tax-free later.

The requirement was originally due in 2024. IRS Notice 2023-62 granted an administrative transition period, and that period ended on 31 December 2025. The rule is live for 2026 contributions.

Who the Rule Captures

It applies if your prior-year wages from the employer sponsoring the plan exceeded $150,000. Three details decide more cases than the headline number does.

• It reads prior-year wages. Your 2026 catch-up treatment is set by what you earned in 2025, not by what you earn during 2026.
• It reads wages from that employer. Change jobs and the clock effectively resets, because the new sponsor has no prior-year wages for you.
• It reads FICA wages, not total compensation. Self-employed people with no such wages fall outside the rule entirely.

If Your Plan Has No Roth Option

Then affected participants cannot make catch-up contributions at all. The rule does not convert their contributions or fall back to pre-tax treatment — it removes the option. For a plan with older, well-paid participants, adding a Roth feature stops being a nice-to-have and becomes the thing standing between those employees and $8,000 of annual retirement room.

What Employers Should Settle Before January

Treasury and the IRS issued final regulations in late 2025, and those regulations generally apply to contributions in taxable years beginning after 31 December 2026 — in other words, from 2027. For 2026 itself, plans may implement the requirement using a reasonable, good-faith interpretation of the statute.

That is a genuine grace period on the mechanics, not on the requirement. The statute applies now; the detailed rules become binding a year later. Certain governmental plans and plans under a collective bargaining agreement get a later applicability date again, so check which category yours falls into rather than assuming the general date.

2025 vs 2026: What Actually Moved

Contribution Type	2025 Limit	2026 Limit	Change
Employee elective deferral	$23,500	$24,500	+$1,000
Catch-up, age 50+	$7,500	$8,000	+$500
Catch-up, ages 60–63	$11,250	$11,250	No change
Total annual additions	$70,000	$72,000	+$2,000
Total including age-50 catch-up	$77,500	$80,000	+$2,500
Total for ages 60–63	$81,250	$83,250	+$2,000
Annual compensation limit	$350,000	$360,000	+$10,000
IRA contribution limit	$7,000	$7,500	+$500
IRA catch-up, age 50+	$1,000	$1,100	+$100

The IRA catch-up moving at all is the quiet news in that table. It sat at $1,000 for close to two decades because it was not indexed to inflation; SECURE 2.0 indexed it, and 2026 is the first year the adjustment produced an actual increase.

What the Higher Limits Are Worth

Tax Savings: Traditional vs Roth

Contributing to a traditional 401(k) reduces your taxable income in the year you contribute. Maxing out at $24,500 in the 24% federal bracket defers roughly $5,880 in federal tax; in the 32% bracket, roughly $7,840. State income tax, where it applies, adds to both.

Roth contributions invert the trade. You pay the tax now and withdraw tax-free in retirement, which wins if you expect a higher rate later than the one you face today. The honest answer for most people is that neither is obviously right, which is an argument for holding some of each rather than for agonising over the split.

Adjusting Your Contributions for 2026

Most payroll systems express contributions as a percentage of pay, not a dollar amount, so last year’s percentage will not reach this year’s limit. Recalculate it in January.

Front-loading carries a trap worth knowing about. If your employer matches per pay period rather than truing up at year end, hitting $24,500 by September stops the match for the remaining months — and you forfeit the match on those periods entirely. Ask which method your plan uses before accelerating.

If you are close to 60, map the four-year super catch-up window now. Someone who uses all four years contributes $13,000 more than someone who discovers it at 62.

How Employers Should Prepare for 2026

1. Update the payroll caps. $24,500, $8,000, $11,250, $72,000 and the $360,000 compensation limit all need changing, and the compensation limit is the one most often missed.
2. Identify who the Roth catch-up rule captures. Pull 2025 FICA wages by employee against the $150,000 threshold. This is a payroll query, not a benefits one, and it needs running before the first January payroll.
3. Confirm your plan has a Roth feature. If it does not, affected participants lose catch-up contributions entirely. Amending the plan takes longer than most sponsors expect.
4. Tell affected employees before they are surprised. Someone who has contributed pre-tax for a decade will notice the change in their net pay and should hear why from you first.
5. Check whether you offer the 60–63 catch-up at all. It is optional, and participants frequently assume it is automatic.
6. Decide your good-faith position for 2026 and write it down. The final regulations do not bind until 2027, so document the interpretation you adopted and why.

Conclusion

The 2026 numbers are a routine inflation adjustment: $1,000 more of deferral room, $500 more of catch-up, $2,000 more in the combined cap. Worth capturing, not worth restructuring your finances over.

The Roth catch-up requirement is the part that deserves attention. It changes who can contribute how, it lands on exactly the employees with the most at stake, and for plans without a Roth option it removes catch-up contributions rather than merely re-labelling them. If you handle one item from this page before January, make it the wage query against the $150,000 threshold.

Figures are drawn from IRS Notice 2025-67 and the final catch-up regulations issued in 2025. This is general information rather than tax advice — confirm your own position with a qualified adviser.

The Other 2026 Limits Worth Knowing

The 401(k) deferral limit gets the headlines, but several neighbouring thresholds moved too, and they decide more real-world outcomes than the headline number does.

SIMPLE Plans

Employees at smaller companies on a SIMPLE IRA can defer $17,000 in 2026, up from $16,500. Certain plans qualify for a higher limit of $18,100. The age-50 catch-up rises to $4,000 from $3,500, and the 60–63 catch-up holds at $5,250.

Traditional IRA Deduction Phase-Outs

You can always contribute to a traditional IRA; whether you can deduct it is the part that phases out once you are covered by a workplace plan. For 2026 the deduction phases out between $81,000 and $91,000 for single filers, up from $79,000–$89,000, and between $129,000 and $149,000 for married couples filing jointly, up from $126,000–$146,000.

Roth IRA Income Limits

Roth IRA eligibility phases out between $153,000 and $168,000 for single filers and between $242,000 and $252,000 for married couples filing jointly. Worth separating from the Roth 401(k), which has no income limit at all — a distinction that catches out plenty of high earners who assume they are locked out of Roth entirely.

The Saver’s Credit

Lower and middle-income savers can claim a credit worth up to half of what they contribute. The 2026 income ceilings are $80,500 for married couples filing jointly, $60,375 for heads of household and $40,250 for single filers. It is one of the most under-claimed provisions in the code, largely because the people eligible for it are the least likely to be working with an adviser.

Where the 2026 Increase Sits Historically

The deferral limit has moved from $22,500 in 2023 to $23,000 in 2024, $23,500 in 2025 and $24,500 in 2026. The 2023–24 jump was the inflation spike working through the indexing formula; the two increases since have been smaller and steadier.

The practical consequence is that a percentage-based contribution election drifts further from the cap every year. Someone who set 10% of salary in 2023 and never revisited it has been leaving room on the table for three consecutive years, which is why the January recalculation is worth putting in a calendar rather than trusting to memory.

Five Ways People Lose Contribution Room

• Changing jobs mid-year. The $24,500 limit is yours, not each employer’s. Two payroll systems have no visibility of each other, so the total is your responsibility to track — this is the most common route to an excess contribution.
• Front-loading against a per-pay-period match. Hitting the cap early stops the match for the remaining periods unless your plan trues up at year end.
• Assuming the 60–63 catch-up is automatic. It is optional for the sponsor, and plenty of plans have not adopted it.
• Missing the compensation cap. Above $360,000, a percentage-based match stops accruing, so high earners who model their match as a flat percentage overestimate it.
• Treating Roth and traditional as separate limits. They share one $24,500 ceiling.

2026 401(k) Contribution FAQs