Quick Answer
At 50+, your 401(k) catch-up limit increases from $24,500 to $32,500 — per IRS catch-up contribution rules. At ages 60–63, it jumps further to $35,750. ITIN holders contribute through any employer that offers a 401(k) — no SSN required for participation, only a valid tax ID.
What Are the 2026 401(k) Catch-Up Limits?
| Age Group | Annual Limit | What This Adds |
|---|---|---|
| Under 50 | $24,500 | Base limit only |
| Age 50–59, 64+ | $32,500 | +$8,000 catch-up |
| Age 60–63 (new) | $35,750 | +$11,250 super catch-up |
How Much Extra Can I Contribute After Age 50?
How Much Extra Can You Contribute?
Once you turn 50, you can contribute an additional $8,000 per year to your 401(k), bringing your total from $24,500 to $32,500 — that's $667 per month in catch-up contributions alone, on top of any employer match. ITIN holders are fully eligible; age, not immigration status, is what matters.
What It Means in 30 Years
If you're 50 and contribute an extra $8,000/year for 15 years (until 65) at 7% annual growth, that $120,000 in extra contributions grows to $287,000. That's the power of compound growth in your final working years.
Who Qualifies?
You must be 50 years old by December 31 of the plan year. If you turn 50 on December 31, 2026, you qualify for catch-up contributions starting in 2027 (the plan year that includes when you turned 50).
ITIN Holders and Catch-Up Eligibility
ITIN holders are fully eligible for catch-up contributions. Your immigration status does not affect age-based eligibility. If you're 50+ and your employer offers a 401(k), you can contribute the full catch-up amount.
What Is the Super Catch-Up for Ages 60–63?
What Changed?
Starting in 2026, SECURE Act 2.0 introduced a new "super catch-up" provision. Workers aged 60, 61, 62, and 63 can now contribute $11,250 per year in catch-up contributions instead of the standard $8,000. This is an additional $3,250 per year for this narrow age window.
Your Contribution Path by Age
- Age 50-59: $24,500 + $8,000 = $32,500/year
- Age 60-63: $24,500 + $11,250 = $35,750/year (if your plan offers it)
- Age 64+: Back to $24,500 + $8,000 = $32,500/year
Critical: Not All Plans Offer Super Catch-Up Yet
The super catch-up is optional for employers. While many large companies have implemented it, some plans have not. Ask your HR department if your plan offers the age 60-63 super catch-up. If they say no, you can only contribute the standard $8,000 catch-up even if you're 60-63.
The Time Window Is Narrow
Super catch-up only applies from age 60 to 63. The year you turn 64, you revert to the standard $8,000 catch-up. This is a 4-year window, so if you're eligible, use it aggressively.
How Does the 2026 Roth Catch-Up Rule Affect High Earners?
If You Earned Over $150,000 Last Year
Starting in 2026, there's a new rule: if you earned more than $150,000 in FICA wages in the prior year, your catch-up contributions must be made to a Roth 401(k) (after-tax), not as traditional (pre-tax) contributions.
What This Means
Your catch-up dollars don't reduce your current-year taxable income — they're funded with after-tax money. However, they grow tax-free and can be withdrawn tax-free in retirement (assuming you meet Roth holding period rules).
Example
If you earn $180,000 and contribute $8,000 catch-up:
- Under old rules: $8,000 reduces your taxable income by $8,000 (saves ~$2,240 in taxes at 28% rate)
- Under 2026 rules: $8,000 is after-tax, no tax savings now — but grows tax-free forever
The tradeoff: you lose the immediate tax deduction, but you gain tax-free growth and withdrawals in retirement. For most high earners, Roth growth is the better deal long-term.
How Should Immigrants Use Catch-Up Contributions?
Scenario: Started Working at 35 (ITIN Available)
- Age 35-50: Contribute $15,000/year to 401(k) and Roth IRA
- Age 50-60: Contribute $32,500 to 401(k), plus $8,500 to Roth IRA (including catch-up)
- Age 60-65: Contribute $35,750 to 401(k) (super catch-up), plus $8,500 to Roth IRA
- Total extra during catch-up window (age 50-65): ~$195,000 beyond base contributions
Why This Matters
You spent ages 35-50 building your career and ITIN account access. Now, ages 50-65, you're at peak earnings but running out of time. Catch-up contributions let you compress retirement savings. You can retire at 65 with a reasonable nest egg despite the 15-year late start.
What Are the Tax Benefits of Catch-Up Contributions?
Reduces Current-Year Taxes (Unless You're Above $150k)
Catch-up contributions cut current-year taxes and grow tax-deferred. An $8,000 traditional 401(k) catch-up saves $1,760 per year in federal taxes at the 22% bracket ($1,920 at 24%), and over 15 years that adds up to $26,400–$28,800 before state taxes. The breakdown for earners under $150,000:
- At 22% tax bracket: saves $1,760/year in federal taxes
- At 24% tax bracket: saves $1,920/year
Over 15 years of catch-up, that's $26,400–$28,800 in tax savings (before state taxes). That's real money.
Tax-Deferred Growth
Every dollar you contribute grows tax-free until retirement. At 7% annual growth over 15 years, $120,000 in catch-up contributions becomes $287,000. In a taxable account, you'd owe capital gains tax annually, losing 15–25% of that growth.
What Else Should ITIN Holders Know About Catch-Up Contributions?
Four details trip people up: you don't need to max the $24,500 base before adding catch-up, the 401(k) and IRA limits stack to $41,000 per year at age 50+, plans that lack a catch-up option can usually add it through HR, and contributions stop once you stop working.
Do I Have to Max Out the Base $24,500 Before Catch-Up?
No. You can contribute catch-up without maxing the base. If you can only afford $28,000/year at age 50, you can put $24,500 in the base limit and $3,500 in catch-up. That counts.
Can I Do Both Catch-Up and IRA Catch-Up?
Yes. 401(k) and IRA contribution limits are separate. At age 50+, you can contribute:
- $32,500 to your 401(k) (including $8,000 catch-up)
- $8,500 to a Roth or Traditional IRA (including $1,000 IRA catch-up)
- Total: $41,000/year
What If My Plan Doesn't Offer Catch-Up?
Most plans offer standard catch-up ($8,000 at 50+). If yours doesn't, ask HR to implement it — it's easy for plan administrators to set up. If they refuse, focus on maxing your 401(k) base and then maxing your IRA catch-up.
What Happens to Catch-Up After I Retire?
Once you stop working, you can't contribute anymore. Catch-up is only available while you're actively participating in the plan. So contribute aggressively while you're employed.