What Is a 401(k) Catch-Up Contribution?

Research. Education. Perspective.

A 401(k) catch-up contribution is an additional employee elective deferral that an eligible older participant can make above the ordinary annual employee deferral limit when the plan permits catch-up contributions.

For 2026, three numbers matter most for a typical 401(k) participant:

• ordinary employee elective-deferral limit: $24,500
• general age-50-plus catch-up limit: $8,000
• higher catch-up limit for participants attaining ages 60 through 63: $11,250.^[1][2][3]

SECURE 2.0 also changes the tax character of catch-up contributions for certain higher-wage participants beginning in 2026.

That Roth rule is easy to misunderstand because the statute begins operating before the final regulations become generally applicable.

Key Takeaways

• A participant who is age 50 or older by the end of 2026 can generally be eligible for catch-up contributions if the plan permits them.^[1]
• The general 2026 catch-up limit for most 401(k), 403(b), governmental 457 plans and the federal Thrift Savings Plan is $8,000.^[1][2]
• Combined with the ordinary $24,500 employee limit, that can allow up to $32,500 of employee elective deferrals in 2026.^[2]
• Participants who attain age 60, 61, 62 or 63 during 2026 can have a higher catch-up limit of $11,250.^[1][2][3]
• The $11,250 amount replaces the ordinary $8,000 catch-up for those ages; the two amounts are not added together.
• A qualifying age-60-to-63 participant can therefore potentially defer up to $35,750 in 2026.
• Beginning in 2026, the statutory Roth catch-up rule generally requires certain catch-up contributions to be Roth when prior-year FICA wages from the sponsoring employer exceed $150,000 for the 2026 determination.^[1][3][5]
• The final Roth catch-up regulations generally become applicable in 2027, while permitting earlier implementation using a reasonable, good-faith interpretation of the statute.^[5][6]
• Catch-up contributions generally are not included in the basic section 415(c) annual-additions limit.^[4][9]

What Is a Catch-Up Contribution?

> ROIStreet Definition > > A catch-up contribution is an additional elective deferral that an eligible older participant can make above an otherwise applicable retirement-plan contribution limit, subject to the plan and federal rules.

The catch-up does not replace the ordinary employee contribution limit.

For a participant eligible for the general age-50-plus catch-up in 2026:

$24,500 regular deferral + $8,000 catch-up = $32,500

For a participant eligible for the higher age-60-to-63 catch-up:

$24,500 + $11,250 = $35,750

Who Is Eligible for the General Age-50 Catch-Up?

IRS guidance states that a participant in an eligible plan can make catch-up contributions if the participant is age 50 or older by the end of the calendar year and the plan permits catch-up contributions.^[1]

Someone who turns 50 later during 2026 can therefore potentially qualify for the 2026 catch-up.

The plan's own contribution procedures still apply.

2026 Catch-Up Limits by Age

These figures apply to most 401(k), 403(b), governmental 457 plans and the federal Thrift Savings Plan for 2026.^[1][2]

Compensation and plan limits can still constrain actual contributions.

Why Ages 60 Through 63 Are Different

SECURE 2.0 created a higher catch-up limit for participants who attain ages 60 through 63 during the calendar year.^[1][2]

For 2026, that amount is:

$11,250

rather than the general:

$8,000

catch-up.^[1][2][3]

The larger amount is a replacement limit, not a second layer.

Example: Participant Age 55

Assume:

• age during 2026: 55
• plan permits catch-up contributions
• compensation is sufficient

Ordinary employee deferral:

$24,500

General catch-up:

$8,000

Potential total:

$32,500

Example: Participant Age 62

Assume the participant attains age 62 during 2026.

Ordinary employee deferral:

$24,500

Higher catch-up:

$11,250

Potential total:

$35,750

What Happens at Age 64?

The higher limit applies only when the participant attains age 60, 61, 62 or 63 during the calendar year.^[1]

Someone who turns 64 during 2026 generally returns to the ordinary age-50-plus catch-up of:

$8,000

That creates a four-year enhanced-catch-up window.

Catch-Up Contributions Are Elective Deferrals

Catch-up contributions are employee elective deferrals.^[1]

They are not:

• employer matches
• profit-sharing contributions
• rollovers
• IRA contributions
• voluntary after-tax contributions used for a mega backdoor Roth

This distinction matters because the contribution limits apply differently to each source.

Does a Plan Have to Offer Catch-Up Contributions?

The plan must permit catch-up contributions before the participant can make them.

Federal law determines the permissible tax treatment and limits, while the plan determines how the participant makes the payroll election.

An eligible employee cannot independently deposit extra money into the 401(k) outside the plan's procedures.

What Makes a Deferral a Catch-Up?

The most familiar threshold is the annual employee elective-deferral limit.

For 2026, that basic limit is:

$24,500.^[2][4]

Eligible additional elective deferrals can then be treated as catch-up contributions up to the applicable catch-up ceiling.

In technical plan administration, catch-up treatment can also interact with other statutory or plan limits.

Catch-Up Contributions and the $72,000 Limit

For 2026, the general section 415(c) annual-additions limit is the lesser of:

• 100% of compensation, or
• $72,000.^[4][8]

Catch-up contributions generally are not counted in that basic annual-additions limit.^[4][9]

This can allow an eligible participant's total plan contributions to exceed $72,000.

Example: Age-55 Total Plan Contributions

Assume annual additions from ordinary employee and employer sources reach:

$72,000

An eligible age-55 participant can potentially add:

$8,000

of catch-up contributions.

Potential total:

$80,000

subject to all applicable rules.

Example: Age-62 Total Plan Contributions

If annual additions reach $72,000 and the participant qualifies for the higher catch-up:

$72,000 + $11,250 = $83,250

can be the conceptual total including catch-up contributions.

The 2026 Roth Catch-Up Rule

SECURE 2.0 added a Roth requirement for certain higher-wage catch-up participants.

Current IRS guidance says that, beginning in 2026, participants in plans with Roth features offering catch-up contributions generally must make catch-up contributions on a Roth basis when prior-year wages with the plan sponsor exceed the applicable threshold.^[1]

For the 2026 determination, that threshold is:

$150,000.^[3]

What Does Roth Catch-Up Mean?

A Roth catch-up contribution is included in current taxable income rather than made as a traditional pre-tax deferral.

The amount goes into the plan's designated Roth account.

The Roth rule changes the contribution's tax character, not its numerical limit.

For example, an affected 55-year-old still has an $8,000 catch-up ceiling.

The $150,000 Test Is Not Household Income

The Roth catch-up threshold is not based on:

• household income
• adjusted gross income
• modified adjusted gross income
• a spouse's wages
• investment income

It looks to relevant prior-year FICA wages from the employer sponsoring the plan.^[1][3][5]

That difference is fundamental.

Example: Above the Wage Threshold

Assume:

• age in 2026: 57
• relevant 2025 FICA wages from the sponsoring employer: $165,000
• plan supports catch-up and Roth contributions

The numerical catch-up limit is:

$8,000

The statutory 2026 Roth catch-up rule generally requires that catch-up amount to receive Roth treatment under the applicable plan administration.^[1][3]

Example: Household Income Is High but Employer Wages Are Not

Assume:

• participant age: 55
• relevant 2025 employer FICA wages: $120,000
• household income: $300,000

The $300,000 household-income figure does not itself trigger the Roth catch-up requirement.

The relevant employer wage amount is below the 2026 $150,000 threshold.

What If There Were No Prior-Year Wages From That Employer?

The Roth catch-up rule is tied to prior-year wages from the sponsoring employer.

The final regulations address technical circumstances involving employees who did not receive the relevant wages from that employer, transfers among certain related employers and similar payroll situations.^[5][6]

Those situations should be resolved by the plan administrator rather than by substituting household income for the statutory wage measure.

Why 2026 and 2027 Both Appear in IRS Guidance

The timing can look contradictory unless two separate concepts are kept apart.

The SECURE 2.0 statutory Roth catch-up requirement becomes relevant in 2026 after the administrative transition period ended December 31, 2025.^[1][5][7]

Treasury and IRS also state that the detailed final regulations generally apply to taxable years beginning after December 31, 2026—generally 2027.^[5]

Before that general applicability date, plans can implement the statute using a reasonable, good-faith interpretation.^[5]

What the 2027 Date Does Not Mean

It does not mean there is no Roth catch-up requirement in 2026.

Current IRS participant guidance expressly describes the Roth catch-up rule as beginning in 2026 for affected participants.^[1]

The 2027 date refers to when the detailed final regulations generally become mandatory.

Does the Plan Need a Roth Feature?

The Roth catch-up rule interacts with whether the plan offers designated Roth contributions.

IRS guidance specifically describes the requirement in plans with Roth features that offer catch-up contributions.^[1]

The final regulations address administration, including deemed Roth elections and correction mechanisms.^[5][6]

Participants affected in 2026 should follow current plan and payroll instructions.

Is Traditional Catch-Up Still Possible?

For participants who are not subject to the mandatory Roth catch-up rule, tax-treatment choices depend on the plan.

A plan can offer traditional and designated Roth elective deferrals.

The important distinction is between:

• mandatory Roth treatment for an affected catch-up participant, and
• elective Roth treatment where the participant remains eligible to choose.

Employer Matching and Catch-Up Contributions

Employer matching contributions are not themselves catch-up contributions.

Whether an employer matches catch-up deferrals depends on the plan's matching formula.

An employee should not assume that catch-up contributions:

• automatically receive a match, or
• are automatically excluded from matching.

The plan controls.

Catch-Up vs. Mega Backdoor Roth Contributions

These are different contribution sources.

Catch-up contribution

• employee elective deferral
• requires age eligibility
• has an age-based annual limit
• generally sits outside the basic section 415(c) annual-additions cap

Voluntary after-tax contribution

• separate non-Roth contribution source
• depends on plan design
• generally uses section 415(c) annual-additions room
• can be part of a mega backdoor Roth strategy

A participant can potentially encounter both in the same plan.

Catch-Up Contribution vs. Roth Conversion

A required Roth catch-up is also not a Roth conversion.

A catch-up contribution sends new compensation into the plan.

A Roth conversion or in-plan Roth rollover changes the tax character of existing retirement assets.

The terms should not be used interchangeably.

SIMPLE 401(k) Catch-Up Limits Are Different

SIMPLE plans use lower catch-up limits.

For 2026, IRS guidance states that SIMPLE plans generally use:

• $4,000 ordinary age-50-plus catch-up
• $5,250 higher catch-up for participants attaining ages 60 through 63.^[1][4]

A participant should first identify the exact plan type.

403(b) Plans Have Another Special Catch-Up

Certain 403(b) participants with at least 15 years of service can have access to a separate special service-based catch-up rule.

That is not an ordinary 401(k) provision.

A 403(b) participant can therefore need a more specialized calculation.

Multiple Employer Plans

Employee elective-deferral limits can interact across multiple retirement plans.

An employee generally should not assume each unrelated account automatically provides a separate full section 402(g) limit.

The analysis can become more complex when:

• multiple employers are involved
• a SIMPLE plan is involved
• plan types differ
• age-based catch-up eligibility applies

Accurate year-to-date payroll records matter.

Solo 401(k) Catch-Up Contributions

A one-participant 401(k), often called a solo 401(k), can also permit eligible catch-up contributions.

IRS guidance explains that the plan's overall contribution limit applies without counting catch-up contributions.^[9]

That can allow an eligible owner-participant to contribute above the basic annual-additions ceiling, subject to compensation and plan rules.

Common Catch-Up Contribution Mistakes

Adding $8,000 and $11,250 together

The higher age-60-to-63 amount replaces the ordinary age-50-plus catch-up.

Assuming the enhanced limit continues at 64

It does not. The special window covers ages attained 60 through 63.

Using household income for the Roth test

The 2026 rule uses specified prior-year employer FICA wages.

Treating the 2027 final-regulation date as a delay of the statute

The statutory Roth catch-up rule matters in 2026; the detailed final regulations generally become applicable in 2027.^[1][5]

Counting catch-ups inside the $72,000 basic annual-additions limit

Catch-up contributions generally sit outside it.

Confusing catch-up with voluntary after-tax contributions

They serve different purposes and use different limit systems.

Worked Example: Turning 50 Late in the Year

Assume the participant turns:

50 on December 20, 2026

Because the participant is age 50 by the end of the calendar year, the person can generally be eligible for the 2026 age-50 catch-up if the plan permits it.^[1]

The participant does not need to have been age 50 for all of 2026.

Worked Example: Turning 60

Assume the participant turns:

60 in November 2026

The participant is within the special age band.

Potential employee elective deferrals:

$24,500 + $11,250 = $35,750

subject to compensation and plan rules.

Worked Example: Turning 64

Assume the participant begins the year at age 63 and turns:

64 in October 2026

The participant attains age 64 during the calendar year, so the higher age-60-to-63 catch-up does not apply.

Potential employee elective deferrals under the general catch-up:

$24,500 + $8,000 = $32,500

Worked Example: Roth Catch-Up

Assume:

• participant age in 2026: 61
• relevant 2025 FICA wages from the plan sponsor: $175,000
• plan permits catch-up and Roth contributions

Applicable numerical catch-up limit:

$11,250

Because the participant's relevant prior-year wages exceed the $150,000 threshold, the statutory Roth catch-up rule generally applies to that catch-up contribution for 2026.^[1][3][5]

A Catch-Up Contribution Checklist

1. What age will the participant attain during the year?

This determines whether the ordinary or higher catch-up limit applies.

2. What is the ordinary employee limit?

For 2026: $24,500.

3. Does the plan permit catch-up contributions?

The feature must exist in the plan.

4. Which catch-up amount applies?

For 2026: $8,000 generally, or $11,250 for ages 60 through 63.

5. What were the relevant prior-year employer FICA wages?

This can determine mandatory Roth treatment.

6. What Roth feature and payroll process does the plan use?

Review current plan notices and elections.

7. Does the employer match catch-up deferrals?

Check the actual match formula.

8. Are voluntary after-tax contributions also being made?

Do not combine them with the catch-up category.

9. Is the account actually a SIMPLE 401(k) or a 403(b)?

Different rules can apply.

10. Are multiple plans involved?

Coordinate employee deferrals across the applicable plans.

Frequently Asked Questions

What is the 401(k) catch-up limit for 2026?

The general age-50-plus catch-up limit for most 401(k) plans is $8,000.^[1][2]

How much can someone age 50 or older contribute in 2026?

A participant eligible for the general catch-up can potentially make $32,500 of employee elective deferrals: $24,500 ordinary plus $8,000 catch-up.^[2]

What is the age-60-to-63 catch-up limit?

For 2026, it is $11,250.^[1][2][3]

Does a 62-year-old get both catch-up amounts?

No. The $11,250 higher amount replaces the $8,000 general catch-up.

What happens when someone turns 64?

The participant generally returns to the ordinary age-50-plus catch-up limit. For 2026, that is $8,000.^[1]

What is the 2026 Roth catch-up wage threshold?

The prior-year wage threshold used for the 2026 statutory Roth catch-up determination is $150,000.^[3]

Is the threshold based on household income?

No. It is based on relevant prior-year FICA wages from the sponsoring employer.^[1][3][5]

Do the final Roth catch-up regulations begin in 2026 or 2027?

The statutory requirement is relevant in 2026 after transition relief ended. The final regulations generally apply for taxable years beginning after December 31, 2026, while earlier implementation can use a reasonable, good-faith interpretation.^[5][7]

Do catch-up contributions count toward the $72,000 annual-additions limit?

Generally no.^[4][9]

Are SIMPLE 401(k) catch-up limits the same?

No. For 2026, SIMPLE plans generally use a $4,000 age-50-plus catch-up and a $5,250 higher catch-up for ages 60 through 63.^[1][4]

The Bottom Line

A 401(k) catch-up contribution lets eligible older participants defer more than the ordinary employee limit.

For 2026:

• ordinary employee elective-deferral limit: $24,500
• general catch-up for age 50 and older: $8,000
• higher catch-up for participants attaining ages 60 through 63: $11,250

That produces potential employee-deferral totals of:

• $32,500 under the general age-50-plus catch-up
• $35,750 under the age-60-to-63 catch-up

SECURE 2.0 adds another layer.

For 2026, participants above the applicable $150,000 prior-year employer FICA-wage threshold generally face the statutory Roth catch-up requirement.

The detailed final regulations generally become applicable in 2027, but current IRS guidance makes clear that the 2026 statutory rule still matters.

The practical analysis therefore has three parts:

1. Which age-based catch-up limit applies?
2. Does the plan permit the contribution?
3. Must the catch-up be Roth because of the prior-year wage test?

Keeping those questions separate makes the 2026 catch-up rules much easier to understand.

Sources & References

1. IRS: Retirement topics — Catch-up contributions
2. IRS: 401(k) limit increases to $24,500 for 2026
3. IRS Notice 2025-67: 2026 retirement-plan and IRA amounts
4. IRS: 401(k) and profit-sharing plan contribution limits
5. IRS: Final regulations on the Roth catch-up rule
6. IRS: Final catch-up regulations — Internal Revenue Bulletin 2025-40
7. IRS Notice 2023-62: Roth catch-up administrative transition period
8. IRS: COLA increases for retirement-plan dollar limitations
9. IRS: One-participant 401(k) plans

Educational Disclaimer

ROIStreet publishes educational content intended to help readers understand workplace retirement-plan contribution rules. Nothing in this article is personalized investment, tax, legal or financial advice, or a recommendation to make traditional or Roth catch-up contributions. Plan terms, age, compensation, prior-year wages, employer structure and payroll administration can materially change the result.

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