SECURE 2.0 Changes for 2026: Roth Catch-Up and Super Catch-Up Rules

January 1, 2026 marks the effective date for one of the most impactful provisions of the SECURE 2.0 Act: the mandatory Roth catch-up rule.[1]If you are 50 or older and earn more than $145,000, your 401(k) catch-up contributions can no longer be made pre-tax. They must go in as Roth — after-tax dollars, taxable now, but tax-free in retirement.

At the same time, a new super catch-up provision gives workers ages 60 through 63 a significantly higher contribution limit. Together, these changes reshape retirement savings strategy for older workers and near-retirees. Here is everything you need to know.

The Mandatory Roth Catch-Up Rule

Section 603 of SECURE 2.0 requires that catch-up contributions to 401(k), 403(b), and governmental 457(b) plans be made on a Roth basis for workers whose prior-year FICA wages from the employer sponsoring the plan exceeded $145,000.[1]

This provision was originally scheduled to take effect on January 1, 2024, but the IRS issued Notice 2024-02 granting a two-year administrative transition period, pushing the mandatory effective date to January 1, 2026.[2]

Key details of the rule:

• The $145,000 thresholdis based on FICA wages (W-2 box 3 or box 5) from the employer sponsoring the plan in the prior calendar year — not total household income or AGI.[2]
• If you earned $145,000 or less from the plan sponsor, you can still choose between traditional (pre-tax) or Roth catch-up contributions.
• The rule applies only to the catch-up portion of your contribution. Your regular elective deferrals (up to $24,500 for 2026) can still be either pre-tax or Roth regardless of income.[3]
• SIMPLE IRA catch-ups and IRA catch-ups are not affected by this rule.[2]

2026 Contribution Limits at a Glance

Here are the key 401(k) and 403(b) limits for 2026, as published by the IRS:[3]

• Regular elective deferral limit: $24,500
• Standard catch-up (age 50+): $8,000
• Super catch-up (ages 60–63): $11,250
• Total for workers 50–59 or 64+: $24,500 + $8,000 = $32,500
• Total for workers 60–63: $24,500 + $11,250 = $35,750
• Overall 415(c) annual additions limit: $72,000 (includes employer contributions)

The Super Catch-Up: Ages 60 Through 63

SECURE 2.0 Section 109 created an enhanced catch-up for a narrow age window.[1] Workers who are age 60, 61, 62, or 63 at any point during the calendar year can contribute up to $11,250in catch-up contributions for 2026 — compared to the standard $8,000 for workers age 50 through 59 or age 64 and older.

This creates a four-year window to turbocharge retirement savings right before retirement. A worker age 61 earning over $145,000 could contribute $35,750 to their 401(k) in 2026, with the $11,250 catch-up portion going in as Roth.

Important nuance:Once you turn 64, you revert to the standard $8,000 catch-up. The super catch-up is not a permanent higher limit — it is a targeted window. Plan accordingly.

For workers in this age range who also have a 403(b) or governmental 457(b), the same super catch-up limits apply to those plans as well. If you participate in multiple plans, the aggregate catch-up limit applies across all of them.

TSP Roth In-Plan Conversions for Federal Employees

SECURE 2.0 also directed the Federal Retirement Thrift Investment Board to allow Roth in-plan conversions within the Thrift Savings Plan (TSP).[4] Previously, TSP participants could contribute to Roth TSP but could not convert existing traditional TSP balances to Roth within the plan.

Starting in 2026, federal employees and uniformed service members can convert some or all of their traditional TSP balance to Roth TSP without leaving federal service or rolling money out of the TSP. The converted amount is taxable as ordinary income in the year of conversion.[4]

Planning consideration: Federal employees approaching retirement who want to build Roth balances now have a powerful tool. Converting during lower-income years (such as a year of leave without pay, a sabbatical, or the first year of retirement before full annuity payments begin) can minimize the tax hit. However, the conversion income will increase MAGI, which may affect IRMAA tier placement two years later, ACA subsidy eligibility if retiring early, and the Social Security tax torpedo.

Tax Impact: Pre-Tax vs. Roth Catch-Up

The mandatory Roth catch-up rule forces a tax timing decision that was previously optional. Here is the core trade-off:

Pre-tax (traditional) catch-up: Reduces your W-2 taxable income today, lowering your current-year tax bill. But every dollar (plus growth) will be taxed as ordinary income when you withdraw it in retirement. It also counts toward RMDs.

Roth catch-up:No tax break today — the money is included in your W-2 wages. But the contribution and all future growth are tax-free on withdrawal after age 59-1/2 (assuming a 5-year holding period). Roth balances are also exempt from RMDs.[5]

For a worker earning $200,000 in the 24% bracket, the shift from pre-tax to Roth on an $8,000 catch-up means approximately $1,920 more in federal tax in the contribution year. Over the super catch-up amount of $11,250, that cost rises to about $2,700 in federal tax.

Whether this is a good deal depends on your expected tax rate in retirement. If you expect to be in a lower bracket when withdrawing, the traditional route would have been more efficient. But if your retirement tax rate will be similar or higher — especially once Social Security, RMDs, and hidden taxes stack up — paying tax now through Roth can save significantly more over a 20–30 year retirement.

What Your Employer Needs to Do

The mandatory Roth catch-up rule requires plan sponsors to offer a Roth contribution option for catch-up contributions. Plans that did not previously allow Roth contributions must add that feature by January 1, 2026 — or stop offering catch-up contributions entirely.[2]

If your employer's plan does not currently offer Roth contributions, check with your HR department or plan administrator now. Some smaller employers may choose to eliminate catch-ups rather than implement the Roth infrastructure, which would remove your ability to contribute above the $24,500 base limit.

Strategic Planning for Near-Retirees

The mandatory Roth catch-up interacts with several other retirement tax provisions. Here is how to think about it:

1. Coordinate with Roth conversions.If you are already doing voluntary Roth conversions from a traditional IRA, the mandatory Roth catch-up adds to your Roth balance without adding to your MAGI (since it is already included in W-2 wages). This is efficient — you are building Roth assets from two directions.

2. Watch the ACA cliff. If you plan to retire before 65 and use Marketplace insurance, the higher W-2 income from Roth catch-ups in your final working years becomes your lookback income for ACA subsidy eligibility. Plan your retirement date and income carefully.

3. Maximize the super catch-up window.The ages 60–63 window is only four years. If you are approaching 60 and still working, this is the single largest annual 401(k) contribution opportunity you will ever have — $35,750 per year. Do not leave it on the table.

4. Factor in state taxes. Roth catch-ups are also taxable at the state level in the contribution year. If you plan to retire in a no-income-tax state, paying state tax now on Roth catch-ups in a high-tax state may be less efficient than it appears. Run the full federal-plus-state analysis.