Shared chat · GPT-5.6 Terra, Claude Sonnet 5, Gemini 3.8 Flash and Grok 4.3 ·

I'm 52 and made over $150k last year, my catch-up 401k contributions now must go into Roth, does that still make sense for me or should I scale back?

74Partial agreement · split on 3 points

Partial agreement: check the points they split on before acting.

They agree

  • Roth catch-up is often worth considering
  • Rule affects only the catch-up portion
  • Whether to keep depends on future vs current tax rates

They differ

  • Scale back vs keep maximizing

    • Keep contributing; decide based on taxes and finances
    • Don’t scale back; view as diversification and flexibility
    • Don’t scale back; treat as beneficial forced diversification
    • May scale back; Roth isn’t automatically better
  • Time-horizon importance

    • Compounding window shorter reduces Roth advantage
    • Time horizon matters, but no strong emphasis
    • Emphasizes benefits like no RMD and diversification
    • Strongly leans on macro/tax insurance narrative
  • Cash-flow/tax-cost emphasis

    • Paying tax now hurts; may outweigh benefits
    • Afford after-tax impact is a key factor
    • Frames as forcing tax diversification value
    • Frames as pre-paid tax insurance; less focus on cost

Agreement measures how closely the models match, not whether they are right.

Combined from GPT, Claude, Gemini and Grok

Should You Keep Maxing Roth Catch-Up Contributions at 52 Making $150k+?

The Fact Check First (This Matters More Than the Advisors Emphasized)

A few mechanics that change the calculus:

  • The threshold is based on prior-year FICA wages from your specific employer (not household income, not total earnings), around $145k and indexed annually. If you're right at the border, next year could look different.
  • Only your catch-up contribution is forced into Roth — for 2025 that's $7,500 (or up to $11,250 if you're 60–63, under the new "super catch-up"). Your regular $23,500 elective deferral is untouched and can still go pre-tax.
  • Employer match/profit-sharing is unaffected — it goes in pre-tax regardless of what you do with your own catch-up.
  • Enforcement was delayed to 2026. If your plan is already applying this, your employer is either getting ahead of it or the plan doesn't offer a pre-tax catch-up option at all.

The Reframe That Resolves the Real Disagreement

Here's the point that gets missed when advisors debate "Roth vs. Traditional" for your catch-up: that's not actually your choice anymore. Once you're over the threshold, you cannot elect traditional treatment for the catch-up amount. Your only options are:

  1. Contribute it as Roth (tax-free growth, no deduction now), or
  2. Don't contribute it at all — which means that money just becomes ordinary take-home pay, taxed the same way regardless, and then either spent or invested in a taxable brokerage account.

This is why the Maverick's framing — "the forced Roth doesn't remove the reason this was attractive, the deduction" — is only half right. You're not choosing between a deduction and no deduction. You're choosing between tax-free compounding inside a Roth 401(k) and taxable compounding in a brokerage account (or no additional savings at all). Against that real alternative, Roth 401(k) wins in almost every scenario, because:

  • No ongoing tax drag on dividends/capital gains along the way
  • No capital gains tax on withdrawal
  • Still creditor-protected and estate-planning friendly like the rest of your 401(k)

So the Maverick's cash-flow argument (paying ~$2,250 in tax today hurts) is legitimate, but his implied alternative — "skip it and keep the deduction" — doesn't actually exist here. The real question isn't "Roth vs. pre-tax." It's "save more (via Roth 401k) vs. save less."

Where the Advisors Actually Agree (and It's the Right Framework)

Strip away the analogies and the disagreement mostly evaporates. Everyone converges on the same two variables:

1. Current marginal rate vs. expected retirement marginal rate.
At $150k+ you're likely in the 24–32% federal bracket. The question is whether you'll be meaningfully lower in retirement. Don't just look at your expected withdrawal rate in isolation — factor in:

  • Required Minimum Distributions stacking on top of Social Security and any pension
  • Social Security taxation (up to 85% becomes taxable once other income is high enough)
  • IRMAA surcharges on Medicare premiums, which are cliff-based and easy to trip with a large pre-tax balance
  • The fact that many people underestimate future taxable income because they forget these stack together

If your pre-tax balances are already large, forced RMDs alone can put you in a higher bracket in retirement than you expect — which argues for the Roth catch-up.

2. Whether you can afford the cash-flow hit today.
This is the only legitimate reason to "scale back," and it's not really about the Roth mandate being a bad deal — it's about liquidity. If maxing out the catch-up crowds out an emergency fund, high-interest debt payoff, HSA contributions (the one truly triple-tax-advantaged vehicle — max this first if you haven't), or near-term goals like tuition, that's a real constraint worth respecting.

Decision Rules

Keep contributing the full Roth catch-up if:

  • You're not sacrificing HSA max-out, employer match, or emergency savings to do it
  • You already have (or expect to have) a large pre-tax 401(k)/IRA balance, meaning RMDs and IRMAA exposure are real concerns
  • You have 10+ years until you'll actually draw on this money
  • You want flexibility to control your taxable income in retirement (pulling from Roth in high-spend years without triggering IRMAA or extra SS taxation)

Consider scaling back (i.e., contributing less than the full catch-up) if:

  • The after-tax cost genuinely threatens near-term cash flow or forces high-interest debt to linger
  • You have strong, specific reasons to expect a materially lower tax bracket in retirement (e.g., planned early retirement with a long bridge period on modest income before RMDs kick in, or you're relocating to a no-income-tax state)
  • You're already well-diversified between pre-tax and Roth and marginal Roth space adds little

Don't scale back just because:

  • You lost the deduction — the real alternative is taxable investing, not a deduction you get to keep
  • The contribution "feels" more expensive now — it is more expensive in cash-flow terms, but it's not a worse asset

Bottom Line

For someone at your income and age, this mandate is best understood as forced tax diversification you likely couldn't easily get otherwise (you're almost certainly over the Roth IRA income limit, so this is now your main lever for building a tax-free bucket). Unless it's genuinely straining your cash flow or you have a specific, well-reasoned case for a much lower future tax bracket, the evidence points toward continuing to fund it — not because "Roth always wins," but because the real alternative (taxable investing) rarely beats it, and the flexibility it buys you against RMDs, IRMAA, and Social Security taxation in retirement has real value that a simple bracket comparison understates.

If you want to get precise, the highest-leverage next step is running your specific numbers: current marginal rate (federal + state), projected pre-tax balance at retirement, expected RMD-driven income floor, and years to retirement — that turns this from a rule of thumb into an actual answer for your situation.

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