Roth 401(k) vs Traditional 401(k) 2026: Pre-Tax or After-Tax?
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The 2026 limit
For 2026 you can defer up to $24,500 of your own pay into a 401(k). If you are 50 or older, an $8,000 catch-up raises that to $32,500; ages 60–63 at eligible plans get an $11,250 super catch-up. These caps cover your combined Traditional and Roth deferrals.
The core trade: now vs later
Both account types grow tax-deferred inside the plan. The difference is when the IRS collects:
- Traditional 401(k): contributions are pre-tax, lowering this year’s taxable income. Withdrawals in retirement are taxed as ordinary income.
- Roth 401(k): contributions are after-tax (no deduction now), but qualified withdrawals — including earnings — are tax-free.
So the question is the same as with IRAs: do you want the tax break now or in retirement?
The employer match is always pre-tax
Whatever you choose for your own deferrals, the company match lands in a Traditional sub-account. It was never taxed, so you will owe ordinary income tax on the match and its growth when you take it out. This is why a Roth 401(k) balance is really two buckets: your Roth deferrals (tax-free later) and the pre-tax match (taxable later).
RMDs: the old difference is gone
Traditional 401(k)s require distributions starting at age 73. Historically Roth 401(k)s also had RMDs, but SECURE 2.0 eliminated them for plan years beginning in 2024, so a Roth 401(k) now behaves like a Roth IRA for distribution purposes during your lifetime.
How people choose
- Favor Traditional if you are in a high bracket now and expect a lower one in retirement, or you want the immediate deduction.
- Favor Roth if you are early in your career, in a lower bracket, or you want tax-free income later and less taxable income in retirement.
- Split by contributing to both within the same plan if your payroll system allows it.
Frequently Asked Questions
Can I have both a 401(k) and an IRA?
Yes. The 401(k) and IRA limits are separate. Just note that Traditional IRA deductions can phase out if you are covered by a workplace plan and your income is high.
What happens if I leave my job?
You can leave the 401(k), roll it to a new employer’s plan, or roll it to an IRA. Roth dollars stay Roth through a rollover; track your basis so withdrawals are taxed correctly.
Is the $24,500 limit per job?
The employee deferral limit is an aggregate across all jobs for the year, so two jobs share the same $24,500 cap. Employer contributions have a separate, much higher overall limit.
Disclaimer: This article is educational only and is not tax or investment advice. Limits and RMD rules reflect 2026 IRS/SECURE 2.0 provisions and may change; confirm at IRS.gov or with a professional.
The bottom line
The 2026 401(k) limit is $24,500 ($32,500 at 50+). Traditional gives a deduction now, Roth gives tax-free later, and the employer match is always pre-tax. Pick based on your now-vs-later tax picture, and let the savings goal calculator show the long-run difference.