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Here’s the big change, in one sentence: if you’re 50 or older and earned more than $150,000 last year, your 401(k) catch-up contributions now have to go into a Roth account instead of pre-tax – whether you want them to or not.
This rule took effect January 1, 2026, after a two-year administrative transition period gave employers and plan providers more time to prepare. If you’re not there yet – younger, or not making anywhere near $150,000 – this might feel like someone else’s problem. But it’s still worth knowing now, especially if your income rises later or you help a parent manage retirement savings.
There’s a second change bundled into this too: a bigger “super” catch-up limit for people turning 60 to 63. Let me walk through both 401(k) catch-up rules, in plain language, and what you’d actually need to do about either one.
If you haven’t read our base guide yet, What Is a 401(k)? covers the fundamentals this post builds on.
Quick Answer: Starting in 2026, catch-up contributions must generally be made as Roth contributions if you earned more than $150,000 in prior-year FICA wages from the employer sponsoring your plan. The normal 2026 catch-up limit is $8,000, while participants who turn 60, 61, 62, or 63 during the year may contribute up to $11,250 if their plan permits the higher limit.
- Over $150,000 in 2025 FICA wages: 2026 catch-up contributions generally must be Roth
- Turning 60-63 in 2026: catch-up limit may increase to $11,250
- No Roth catch-up capability in the plan: affected high earners may be unable to make catch-up contributions
2026 Catch-Up Contribution Numbers at a Glance
| Who | 2026 Catch-Up Limit | Tax Treatment |
|---|---|---|
| Age 50-59, or 64+ | $8,000 | Pre-tax or Roth (your choice, if under $150K threshold) |
| Age 60-63 (“super catch-up”) | $11,250 | Pre-tax or Roth (your choice, if under $150K threshold) |
| Age 50+ with more than $150,000 in prior-year FICA wages from the plan-sponsoring employer | Applicable age-based limit | Roth catch-up required |
The base 401(k) contribution limit for everyone in 2026 is $24,500. Catch-up contributions are added on top of that – so someone 60 to 63 who’s also over the income threshold could contribute up to $35,750 total, all of the catch-up portion going into Roth.
The Roth Rule for High Earners, Explained Simply
Before this year, anyone 50 or older could choose whether their catch-up contributions went in pre-tax (lowering their taxable income now) or Roth (paying tax now, tax-free later). Starting in 2026, that choice disappears for one group of people.
If your FICA wages – the earnings shown in Box 3 of your W-2 – were over $150,000 in 2025, every dollar of your catch-up contribution in 2026 has to go into a Roth account. Not most of it. All of it.
A few details worth knowing:
- The $150,000 threshold looks at wages from the employer sponsoring your plan specifically – not your total household income, and not investment income
- If you didn’t receive FICA wages from that employer in the prior year – for example, because you’re a new hire – the Roth catch-up requirement may not apply to you for that year
- It’s based on the prior year. Your 2025 W-2 decides your status for 2026
- Your regular contributions – the ones up to the normal $24,500 limit – are unaffected. This rule only touches the catch-up portion
- If your employer’s plan doesn’t offer a Roth option at all, high earners simply can’t make catch-up contributions until the plan adds one
The practical effect: you lose the upfront tax deduction on that portion of your savings. At a 24% federal marginal tax rate, contributing the full $11,250 as Roth instead of pre-tax could mean roughly $2,700 more in current federal taxable income, before considering state taxes or other factors. In exchange, qualified Roth withdrawals – including the investment growth – can be tax-free in retirement, the same trade-off behind any Roth account.
The Super Catch-Up for Ages 60-63
This part is good news, and it applies regardless of income.
If you turn 60, 61, 62, or 63 at any point during 2026, your catch-up limit jumps to $11,250 instead of the standard $8,000 – an extra $3,250 you can put away in your final working years before it drops back to the regular catch-up amount at 64.
Two catches worth knowing. First, this feature is optional for employers – your plan has to specifically offer it, so check with your plan administrator rather than assuming it’s automatic. Second, if you’re also a high earner under the rule above, this larger $11,250 catch-up has to go into Roth too – the two rules stack on top of each other rather than canceling out.
Why This Isn’t Really About Beginners – But Still Matters
Here’s the honest part: if you’re in your 20s or 30s and building your first portfolio, this specific rule almost certainly doesn’t apply to you yet. $150,000 in wages and being 50+ are both a ways off for most beginner investors reading this site.
So why cover it at all? Two reasons. If you’re building toward a career where six figures is realistic, knowing this rule exists now means it won’t blindside you later – you’ll already understand why your catch-up options look different when you get there. And if you’re helping a parent or older family member think through their retirement plan, this is exactly the kind of change that catches people off guard mid-career, when they’re not expecting their 401(k) paperwork to change.
If you’re earlier in your investing journey, your priorities are usually simpler: capture the full employer match first, build an emergency fund, and gradually increase your regular contribution rate long before catch-up contributions become relevant at all.
What to Actually Do If This Applies to You
If you’re 50 or older and think you might be near the $150,000 threshold, check Box 3 of your 2025 W-2 – that’s the actual number that decides your status, not your salary or your take-home pay.
Then confirm two things with your plan administrator: whether the plan supports Roth catch-up contributions, and whether it allows the higher age 60-63 catch-up limit. Plan design and implementation can vary, so neither feature should be assumed from the general IRS limits alone.
If your plan doesn’t have a Roth option yet and you’re a high earner, don’t just skip your catch-up contribution and move on. Ask HR directly. Many plans are still updating their systems and formal plan documents – the general amendment deadline may extend through December 31, 2026 – but the operational Roth catch-up rules already apply in 2026. For the official rule text, see the IRS page on catch-up contributions.
FAQ
A. No. It only applies to catch-up contributions – the amount above the standard $24,500 limit for 2026. Your regular contributions can still be pre-tax or Roth, whichever your plan allows.
A. Specifically your FICA wages from the employer sponsoring your 401(k) plan, as shown in Box 3 of your W-2 – not your household income, not investment income, and not wages from a different employer.
A. If you’re a high earner under this rule and your plan has no Roth option, you currently cannot make catch-up contributions at all until your employer adds one. Plans have until the end of 2026 to formally amend their documents.
A. No. The age 60-63 super catch-up is specific to employer plans like 401(k)s, 403(b)s, and governmental 457(b)s. IRA catch-up contributions follow their own separate, smaller limit.
A. The rule generally looks at prior-year FICA wages from the employer sponsoring your current plan. If you had no FICA wages from that employer in 2025, the mandatory Roth catch-up rule may not apply to your 2026 contributions under that plan. Confirm the treatment with your plan administrator, since multi-employer situations can get complicated.
The Bottom Line
Two real changes landed in 401(k) catch-up contributions this year: a bigger super catch-up for ages 60-63, and a mandatory Roth requirement for anyone 50+ who earned over $150,000 last year. Neither one is optional once it applies to you.
If you’re not close to either threshold yet, you don’t need to do anything today – just file this away. If you are, the two things worth doing this month are checking your actual 2025 Box 3 wages and confirming your plan’s Roth and super catch-up options directly with HR, rather than assuming either one is automatic.
For the fundamentals this builds on, see What Is a 401(k)? and How to Maximize Your 401(k).
Disclaimer: This article is for educational purposes only and does not constitute personalized financial, legal, or tax advice. Retirement plan rules, contribution limits, and thresholds are subject to change and to plan-specific variation. Verify current requirements with the IRS and your own plan administrator before making contribution decisions. Consult a qualified financial or tax professional to discuss your specific situation.