The New 401(k) Catch-Up Rule: Why a Forced Roth Could Be a Boon for Your Retirement

If there were ever a clear example of what critics might label "taxing the rich," the new 401(k) catch-up rule certainly qualifies. Under SECURE 2.0, and as of January 1, 2026, higher-income workers who want to make catch-up contributions are required to direct those dollars into Roth accounts, meaning they must pay taxes on that income today rather than receiving a deduction. For many high earners, that feels like a step backward. After all, the conventional wisdom for decades has been to defer taxes as long as possible. But when you zoom out and look at the full retirement picture, this rule may turn out to be one of those rare cases where a policy that stings in the short term delivers meaningful long-term benefits.

If this applies to you

For 2026, the Roth catch-up requirement kicks in if you earned more than $150,000 in FICA wages from your employer in 2025. The threshold is indexed for inflation and the rule applies to 401(k), 403(b) and governmental 457(b) plans. Below the threshold, nothing changes; pre-tax catch-ups remain available.

Why I suggest most clients to make the contribution anyway

The Roth 401(k) has been available for nearly two decades and high earners have always been free to direct catch-up contributions there. In practice, very few do. The immediate deduction feels concrete, the future tax savings feel abstract and the default is almost always to defer. What the new rule really does is take the choice off the table for the contributions where deferring is most likely to hurt — and quietly push high earners toward a position their future selves would have wanted them in anyway.

The real value of these Roth catch-up contributions shows up later in life, when required minimum distributions begin. Traditional retirement accounts eventually force retirees to pull money out, whether they need it or not, often pushing them into higher tax brackets in their 70s and beyond. Roth balances, by contrast, are not subject to RMDs during the owner's lifetime. That distinction matters.

Consider a hypothetical worker who makes Roth catch-up contributions from age 50 through 65. Over that span, it would not be unreasonable for them to contribute roughly $150,000 into Roth accounts. With investment growth, that balance could easily approach $200,000 by the time RMDs begin. Under current RMD rules, roughly 4% of a traditional IRA balance must be distributed at age 75. In this example, that would translate to about $8,000 per year. Except in this case, because the money sits in Roth, that $8,000 is not forced out, and it is not taxed. For someone in the 22% federal bracket, that alone represents about $1,760 per year in federal tax savings, before factoring in any state taxes.

A bitter pill?

The key question many high earners ask me is simple: Should I still make the catch-up contribution if it must go into Roth? In almost every case, the answer is yes. If you could set aside an additional $8,000 or more per year for retirement and choose not to use the Roth catch-up, your realistic alternative is not another tax-deferred account. It is a taxable brokerage account, where dividends, interest, and capital gains are taxed along the way. Compared to that option, a Roth account remains one of the most powerful tools available.

The forced Roth catch-up may feel like a bitter pill. Taxes today are always uncomfortable. But for many high earners, this rule quietly solves a broader retirement planning challenge by balancing their future tax exposure. In that sense, it may be a case of medicine that doesn't taste great but works exceptionally well over time.