How to Max Out a 401(k) as an ITIN Holder

Last updated: May 29, 2026
By Miguel Garcia

2026 401(k) Contribution Limits

Employee Deferrals (What You Contribute)

• Under 50: $24,500/year ($2,042/month)
• Age 50+: $24,500 + $8,000 catch-up = $32,500/year
• Age 60–63 (with plan approval): $24,500 + $11,250 super catch-up = $35,750/year

Combined Limit (Employee + Employer)

• Overall annual limit: $72,000 (employee + employer contributions combined)
• With standard catch-up (50+): $80,000
• With super catch-up (60–63): $83,250

Most ITIN holders aren't hitting the combined limit — they're focused on getting to the employee deferrals limit ($24,500) while capturing the employer match.

Why Max Out a 401(k)?

Reason 1: Employer Match Is Free Money

If your employer matches 3% of salary, that's instant 3% return on your contribution. You're not "investing" that match — your employer is handing it to you. Pass it up and you're leaving free cash on the table.

Common match structures:

• 100% match on first 3% of salary (most common)
• 50% match on first 6% of salary
• Dollar-for-dollar up to a cap

Never pass up the match. Even if you can only afford 3% of salary, hit that number to capture the full match. Then reassess.

Reason 2: Tax-Deferred Growth

Every dollar in your 401(k) grows tax-free until retirement. A $24,500 contribution at 7% annual growth becomes $428,000 over 30 years. In a taxable brokerage account, you'd owe capital gains tax every year, cutting that number by 15–25%.

Reason 3: Reduces Your Current-Year Taxes

401(k) contributions reduce your taxable income dollar-for-dollar. A $24,500 contribution at a 22% tax bracket saves you $5,390 in federal taxes. That's money back in your pocket right now.

How to Max Out: The Monthly Math

If You Earn $60,000/Year

• Gross monthly: $5,000
• Monthly 401(k) target: $2,042
• As % of gross: 40.8%
• After-tax take-home (assume 25% total tax): $3,750/month
• 401(k) as % of after-tax: 54.5%

Reality check: Contributing 40% of gross to a 401(k) is aggressive for a $60k earner. This is a stretch goal, not the starting point.

If You Earn $100,000/Year

• Gross monthly: $8,333
• Monthly 401(k) target: $2,042
• As % of gross: 24.5%
• After-tax take-home (assume 25% total tax): $6,250/month
• 401(k) as % of after-tax: 32.7%

Realistic for $100k: Maxing out means living on ~67% of your current after-tax income. This is achievable if budgeting is tight but doable.

If You Earn $150,000/Year

• Gross monthly: $12,500
• Monthly 401(k) target: $2,042
• As % of gross: 16.3%
• After-tax take-home (assume 28% total tax): $9,000/month
• 401(k) as % of after-tax: 22.7%

Comfortable for $150k+: At this income, maxing out $24,500 becomes routine while still maintaining a solid living standard.

If You Can't Max Out ($24,500)

Most people can't hit $24,500. Here's the priority order:

Step 1: Capture the Full Employer Match (Non-negotiable)

If your employer offers a 3% match, contribute at least 3% of salary. This is free money. There's no second priority until you've locked this in.

Step 2: Max Out Your Roth IRA ($7,500 in 2026)

After getting the match, if you have cash left over, contribute to a Roth IRA. Why? Tax-free growth is better than tax-deferred. Your $7,500 Roth grows tax-free forever. Your $7,500 in a 401(k) is taxed as ordinary income when you withdraw.

For ITIN holders: You can open and max out a Roth IRA at Fidelity or Schwab. This is fully available to you.

Step 3: Max Out the 401(k) After Maxing the Roth

Once you've hit the Roth IRA limit ($7,500), return to your 401(k) and contribute the rest up to $24,500. You'll hit the 401(k) limit first because it's larger, but the priority order matters for tax efficiency.

Step 4: Taxable Brokerage (If You Still Have Cash)

Once both 401(k) and Roth are maxed, invest in a taxable brokerage account at Fidelity. You'll pay capital gains tax, but this is step 4 for a reason — tax-advantaged accounts come first.

Special Consideration: Highly Compensated Employees (HCEs)

If you earned more than $160,000 in 2025, you're classified as an HCE for 2026 nondiscrimination testing. Here's what that means:

What Is Nondiscrimination Testing?

The IRS requires that 401(k) plans don't disproportionately benefit HCEs (high earners) over regular employees. If your plan fails this test, your employer may be forced to return excess contributions to you as a "corrective distribution."

The Risk

If your plan fails and you're an HCE, you could receive a check for excess contributions (with earnings) that gets added to your income for that tax year. You owe taxes on both the contribution and the earnings. This happens only if the plan fails — most plans pass.

What You Should Do

Ask your HR department: "Does our plan pass nondiscrimination testing?" If they say yes, don't worry. If they say "sometimes we have corrective distributions," you know the risk exists. Monitor your plan documentation in March (the correction deadline).

For ITIN Holders: What You Need to Know

Can You Participate?

Yes. ITIN holders can fully participate in employer 401(k) plans. Your employer will accept your ITIN for plan administration. You're protected under ERISA (Employee Retirement Income Security Act) regardless of immigration status.

Can You Contribute the Full $24,500?

Yes. There are no ITIN-specific limits on 401(k) contributions. You can max out just like any other employee.

Important: Withdrawal Complications

Here's where ITIN holders face a unique issue: When you retire and want to access your 401(k), the plan trustee will require identification. Since an ITIN is not the same as an SSN, some plans have had trouble processing withdrawals or rollovers for ITIN holders. This is not a deal-breaker, but it's worth being aware of. Confirm with your plan administrator that they can handle ITIN-based withdrawals when you're near retirement.

Your Strategy

Max out your 401(k) now. The growth advantage is too big to pass up. When you retire, work with your plan administrator early to sort out the withdrawal mechanics. Most plans can handle ITIN withdrawals — it just requires a phone call and extra documentation.

Step-by-Step: Getting to $24,500

Month 1

1. Log into your 401(k) plan (via your employer's website or the plan's portal)
2. Find the "contribution election" or "salary deferral" setting
3. Calculate: $24,500 ÷ 12 months = $2,042/month (or 26 paychecks if bi-weekly)
4. Set your contribution percentage (divide $2,042 by your gross monthly pay)

Months 2–12

Check your pay stub each month to confirm the $2,042 (or equivalent) is being deducted. Verify that your employer match is being deposited. Don't think about it — let payroll automation handle it.

December/January

Log back in. Confirm you hit (or nearly hit) $24,500. If you're ahead of pace, reduce contributions in December to avoid overage penalties. If you're behind, increase contributions in later months to catch up (most plans allow this).

Common Mistakes to Avoid

• Stopping contributions mid-year to "save money." The tax savings and match make up for the monthly cash flow hit.
• Contributing to 401(k) instead of capturing the employer match first. Match is free. Always prioritize it.
• Not understanding your plan's investment options. Ask HR which funds offer low fees (expense ratio under 0.20%). Avoid target-date funds for ITIN holders — manage allocation yourself.
• Assuming you can "catch up" later. You can't. The $24,500 limit is per calendar year. If you contribute $15,000 in 2026, you've lost $9,500 forever.

Frequently Asked Questions