The Roth Catch-Up Rule Just Took Your Deduction: SECURE 2.0 in 2026

I've spent a lot of this blog telling people to max out pre-tax accounts when they can. So I want to be straight with you about a rule that quietly flips that advice for a specific group of people this year — and only for a slice of their contributions.

As of this year, a provision of the SECURE 2.0 Act of 2022 has finally taken effect: high earners aged 50 and older can no longer make catch-up contributions to a workplace retirement plan on a pre-tax basis. Those dollars must go in as Roth. The Treasury and IRS issued the final regulations on September 15, 2025, and the rule has applied since January 1, 2026.

Let me walk through who this actually touches, because the headlines are making it sound universal. It isn't.

What actually changed

Normally you get to choose whether your 401(k) contributions are pre-tax (deduct now, pay tax in retirement) or Roth (pay tax now, withdraw tax-free later). SECURE 2.0 removes that choice for one narrow population and one narrow bucket of money: catch-up contributions made by higher earners.

The mechanics for 2026:

• The regular elective deferral limit is $24,500.
• The catch-up limit for those 50+ is an additional $8,000.
• For people who turn 60, 61, 62, or 63 during 2026, the "super catch-up" is $11,250.

If you're a high earner, that catch-up portion — the $8,000 or $11,250 — is where the new rule bites. Your first $24,500 can still be pre-tax if you want. Only the catch-up dollars are forced into Roth.

Who the rule actually hits

You are subject to the mandatory Roth catch-up in 2026 if all of these are true:

1. You are age 50 or older in 2026.
2. You want to make catch-up contributions at all (it's optional — if you don't do catch-up, none of this matters).
3. Your FICA wages from the employer sponsoring the plan were more than $150,000 in 2025.

That last number is the one everybody gets wrong, so let's dwell on it.

Three income numbers that are not the same

Here is where I have to flag something, because this is exactly the kind of place people misread their own situation. There are three different income figures floating around this topic, and they measure genuinely different things:

• $150,000 in FICA wages — the threshold for the mandatory Roth catch-up. FICA wages are the Social Security/Medicare wages on your W-2, roughly Box 3/Box 5. Note that pre-tax 401(k) contributions still count as FICA wages, so deferring into your 401(k) does not lower this number.
• $160,000 highly-compensated-employee (HCE) threshold — a different line used for nondiscrimination testing. Being an HCE is not what triggers the Roth catch-up rule.
• Adjusted gross income (AGI) — what most people think of as "income." It's irrelevant to this rule.

The statute originally wrote $145,000. The IRS indexed it to $150,000 for 2026 in Notice 2025-67 on November 13, 2025. So if you read an older article citing $145,000, it isn't wrong — it's just out of date.

A practical wrinkle: the test is per-employer. If you changed jobs mid-2025 and earned under $150,000 with the plan's employer that year, you can be a very high lifetime earner and still not be caught in 2026.

The math: what you lose, what you gain

Losing the upfront deduction stings most in a high bracket. Say you're in the 32% federal bracket and you make an $8,000 catch-up. As pre-tax, that would have cut your current tax bill by $2,560. Forced into Roth, you pay that $2,560 now.

But that's not the whole story, and anyone who tells you this is purely a tax hike is being lazy. Roth dollars grow tax-free and come out tax-free. They also don't trigger required minimum distributions, and qualified Roth withdrawals don't push up your Medicare IRMAA surcharges or the taxation of your Social Security benefits.

Estimate your exposure

The estimator above lets you plug in your age, prior-year FICA wages, catch-up amount, and marginal bracket to see (a) whether you're subject to the rule and (b) the upfront tax you'd pay on Roth versus pre-tax. It's an estimate, not tax advice.

If you want the broader Roth-versus-pre-tax framing, I laid out the trade-off in my earlier piece on Roth IRA vs. Traditional IRA, and the general policy backdrop for why these limits keep rising with inflation is in understanding Federal Reserve policy.

Here's What I'd Actually Do

1. Pull your 2025 W-2 and find your FICA (Social Security) wages. If they're at or below $150,000 with your plan's employer, you're not affected in 2026 — stop worrying.
2. If you're over the line, confirm your plan actually offers Roth. This is the real landmine. If it doesn't, your catch-up could be blocked entirely until the employer amends the plan (amendments are due by December 31, 2026).
3. Don't stop doing catch-up just because it's now Roth. Losing tax-free growth to avoid a Roth label is almost always the wrong trade.
4. Fund the base $24,500 pre-tax if you want the deduction. Only the catch-up is forced to Roth; the base deferral choice is still yours.
5. If you're self-employed with a solo 401(k) and only K-1/Schedule C income, ignore all of this — you have no FICA wages, so pre-tax catch-up remains available.
6. Revisit in November, when the IRS releases 2027 limits and the indexed threshold moves again.

This is educational content, not financial or tax advice. I'm a researcher, not your advisor, and I don't know your plan's specific provisions or your tax situation. Rules and indexed thresholds change. Talk to your plan administrator or a licensed tax professional before making changes to your contributions. See the full disclaimer.