One of the most consequential SECURE 2.0 provisions for high-income savers finally went live this year. Beginning January 1, 2026, employees who are age 50 or older and earned more than $150,000 in FICA wages from their current employer in 2025 must direct every dollar of their 401(k) catch-up contribution into a Roth account. The pre-tax catch-up — a fixture of retirement planning for two decades — is no longer available to that cohort.
The change is narrow in scope but large in dollars. With the 2026 catch-up at $8,000 for ages 50–59 and 64+, and a "super catch-up" of $11,250 for ages 60 through 63, an affected high earner is looking at thousands of dollars per year that must now be funded with after-tax money rather than reducing current-year taxable income.
How the Rule Actually Triggers
The $150,000 threshold is based on prior-year W-2 wages from the employer sponsoring the 401(k) plan. Two practical consequences follow.
First, the test resets each year and is employer-specific. Someone who switches jobs mid-2025 and stays under $150,000 with their new employer can resume pre-tax catch-ups in 2026, even if their total household compensation was much higher.
Second, the rule applies only to employer-sponsored plans — 401(k), 403(b), and governmental 457(b). It does not affect IRA catch-up contributions, which remain at $1,100 for 2026 and can still be made on a traditional or Roth basis based on your own deduction eligibility.
If your employer's plan does not offer a Roth option, affected high earners are blocked from making any catch-up contribution at all until the plan adds one. The IRS gave plan sponsors a transition window through 2025 to add Roth functionality, but the safety net is now gone.
What This Costs in Real Tax Dollars
For a 55-year-old in the 32% federal bracket, redirecting an $8,000 catch-up from pre-tax to Roth raises this year's federal tax bill by roughly $2,560. State income tax compounds the difference further. A 61-year-old in the same bracket making the $11,250 super catch-up faces about $3,600 in additional current-year federal tax.
The trade-off, of course, is tax-free qualified withdrawals later. Whether that's a net win depends on your expected retirement bracket, your timeline, and the state you'll retire in. For workers expecting a meaningful drop in income at retirement, the math often still favors pre-tax — but the choice has been removed for catch-up dollars.
Practical Moves to Make Now
- Verify your plan's Roth option. Check your plan portal or talk to HR. If Roth isn't there, push for it — you cannot catch up at all without it.
- Re-budget for the tax hit. The cash flow impact is real. Withholding adjustments may be needed to avoid underpayment penalties.
- Reconsider HSA and after-tax 401(k) capacity. A health savings account remains triple-tax-advantaged at $4,400 single / $8,750 family in 2026, and a mega-backdoor Roth (where plans permit) can move far more than $8,000 into Roth space.
- Coordinate with Roth conversion strategy. If you're already converting traditional IRA dollars in low-income years, the new Roth catch-ups may shift how aggressive that conversion ladder needs to be.
- Watch the bracket math at age 60–63. The $11,250 super catch-up is generous, but losing the pre-tax shield at peak earning years can push some households into IRMAA territory in retirement if not modeled carefully.
The rule isn't a tax increase by another name — Roth dollars compound tax-free and avoid required minimum distributions inside a 401(k) starting in 2024. But it removes flexibility from a group of savers who have historically used pre-tax catch-ups to manage their final high-income working years, and that change deserves a fresh look at the savings plan.
Sources: IRS Notice 2025-67, Fidelity Learning Center, Charles Schwab, Kiplinger, Ameriprise Financial, Raymond James