The New Roth 401(k) Catch-Up Rule

What Are Catch-Up Contributions?

For workers aged 50 and older, the IRS allows additional “catch-up” contributions to qualified retirement accounts such as 401(k)s and similar employer plans. These extra contributions ($8,000 in 2026 on top of the standard $24,500 annual limit) help older workers accelerate their savings as they approach retirement.

Until now, participants could choose to make those catch-up contributions on a pre-tax or Roth (after-tax) basis, if their plans allowed. Starting in 2026, however, due to new regulations under the SECURE 2.0 Act anyone earning more than $145,000 in wages from their employer (adjusted for inflation) will be required to make those contributions as Roth.

For those affected, this rule eliminates the possibility for a tax deduction on additional pre-tax contributions. This may sting in the short-term, especially for investors who fall in the highest tax bracket. However, the long-term tradeoff could be well worth it. The new requirement essentially “forces” a layer of tax diversification into many portfolios that otherwise wouldn’t have.

The Hidden Problem with All Pre-Tax Savings

A common limitation for many retirees’ financial plans is that they’ve amassed most or all their retirement wealth in pre-tax accounts like 401(k)s and Traditional IRAs. On the surface, the strategy of deferring taxes today to pay them in retirement while at a lower income level seems logical.

The drawbacks stem from the fact that any withdrawal from a pre-tax account is taxable as ordinary income. To make matters worse, the IRS forces savers to take required minimum distributions (RMDs) at age 73 (or age 75 for those born after 1960). An entirely pre-tax portfolio that’s had time to compound over decades can lead to large RMDs and unexpected tax burdens later in life. In particular many government benefits that are crucial components of retirees’ financial plans can be negatively impacted by changes to income levels.  Many are shocked to see more of their Social Security benefit taxable and Medicare premiums increase as they make withdrawals to meet their spending needs. These tax burdens are amplified for beneficiaries who are forced to liquidate their inherited accounts within 10 years.

Why Building a Roth “Bucket” is so Valuable

1. Tax Diversification – Withdrawals from Roth accounts are income tax-free after meeting certain requirements. That means a mix of pre-tax and after-tax accounts gives retirees more control over how they draw income each year. You can pull from different “buckets” to manage your tax bracket and keep more of your Social Security benefits tax-free.
2. Reduced RMD Burden– Roth assets in employer plans and Roth IRAs are not subject to RMDs. That means you’ll have more control over when and how to spend your money later in life.
3. Estate Planning Advantages – Roth assets can be passed to heirs income-tax-free, providing a more efficient legacy tool.
4. Hedge Against Future Tax Rates – Contributing to Roth accounts today locks in your current tax rate, which could prove valuable if tax rates rise in the future, which many experts anticipate as the government manages demographic and fiscal headwinds.

Turning a Mandate into an Opportunity

If you’ve been heavily weighted toward pre-tax savings, the coming rule change may actually help rebalance your tax exposure. And for those who haven’t yet started building Roth assets, 2026 is a great reason to start thinking strategically.