Yes, you can have a Roth IRA and a 401(k) simultaneously, and contribute to both in the same year. They're governed by separate IRC sections (§408A for Roth IRAs, §401(k) for 401(k)s) with separate contribution limits and separate eligibility rules. For 2026, you can contribute up to $7,500 to a Roth IRA ($8,600 if 50+) AND up to $24,500 to a 401(k) ($32,500 with the age-50 catch-up). The Roth IRA's MAGI eligibility limits ($153K-$168K single, $242K-$252K MFJ for 2026) still apply, but a 401(k) has no income limit and is funded by your employer's plan regardless of your income.

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Quick Facts

  • check_circleRoth IRA and 401(k) are separate accounts with separate IRS sections and separate contribution limits.
  • info2026 Roth IRA cap: $7,500 base, $8,600 if 50+ (per IRS Notice 2025-67).
  • info2026 401(k) elective deferral cap: $24,500 base, $32,500 with age-50 catch-up. Ages 60-63 can use a super catch-up of $11,250 (total $35,750) under SECURE 2.0 §109.
  • warningRoth IRA still has income limits ($153K-$168K single, $242K-$252K MFJ for 2026 phase-out). If your MAGI is above the upper limit, no direct Roth IRA contribution; backdoor Roth still available.
  • check_circle401(k) has NO income limit. Anyone with employer-plan access can fund a 401(k) at any income, plus the employer match (which doesn't count toward your $24,500 limit).

How the Two Limits Interact

They don't, mechanically. The Roth IRA $7,500 and the 401(k) $24,500 are independent buckets. A 35-year-old earning $100,000 with a 401(k) can fund both fully:

  • $7,500 to Roth IRA (entire annual cap, since income is under $153K phase-out)
  • $24,500 to 401(k) (entire elective deferral cap)
  • + employer match if any (separate, doesn't count against the $24,500)
  • Combined personal contributions: $32,000 of tax-advantaged savings, plus the match.

The IRC §415(c) annual additions limit ($72,000 for 2026, including employer match + after-tax contributions) sits above all of this and is rarely a constraint for normal savers.

The Strategic Question: Roth 401(k) vs. Roth IRA vs. Both

Many 401(k) plans now offer a Roth 401(k) option (added by the Pension Protection Act of 2006). This is a Roth tax treatment within the 401(k) — after-tax contributions, tax-free qualified withdrawals — different from a Roth IRA but conceptually similar.

The standard recommended priority for most savers:

  1. Capture the full 401(k) employer match first. Free money. Contribute to traditional 401(k) up to whatever generates the match.
  2. Then fund a Roth IRA up to the $7,500/$8,600 cap. Roth tax treatment, broader investment selection, withdrawal flexibility (contributions out anytime).
  3. Then return to additional 401(k) contributions — Roth 401(k) if you want more after-tax bucket, traditional 401(k) if you want more current-year deduction.

This sequence captures the match, secures the Roth IRA's flexibility advantages, then maximizes total tax-advantaged space.

If Your Income Exceeds the Roth IRA Phase-Out

If your 2026 MAGI is above $168,000 (single) or $252,000 (MFJ), you cannot make a direct Roth IRA contribution. You still have full access to:

  • Roth 401(k) — no income limit; same $24,500 elective deferral as traditional 401(k).
  • Backdoor Roth IRA — nondeductible traditional IRA contribution, immediately converted. No income limit on the conversion. See Backdoor Roth for the full procedure.
  • Mega Backdoor Roth — if your 401(k) plan allows after-tax contributions and in-service withdrawals or in-plan Roth conversions, you can move up to ~$47,500 more dollars (2026) into Roth status. See Mega Backdoor Roth.

Combined, these strategies let high-income savers move significant additional dollars into Roth status each year despite the Roth IRA income cap.