Should I max out my 401k or Roth IRA first?
If you cannot fully fund both this year, the order is not a toss-up. After the employer match, max the Roth IRA before the 401k. Here is the math, the 2026 limits, and the two cases where the order flips.
- 1. Employer match
Always first. A 50 to 100 percent guaranteed return no account can match. Vesting clock starts under ERISA § 203.
- 2. Max the Roth IRA — $7,500
Smaller bucket, use-it-or-lose-it each year, tax-free growth, no lifetime RMDs, full market menu, contributions withdrawable any time.
- 3. Back to the 401k — $24,500
Bigger cap, so there is almost always room left after the Roth IRA is full. Pre-tax dollars cut this year's taxable income.
2026 figures per IRS Notice 2025-67: Roth IRA $7,500 (26 U.S.C. § 408A(c)(2)), 401k employee deferral $24,500 (26 U.S.C. § 402(g)). See all 2026 limits.
Why max the smaller account first
The Roth IRA holds less, which is exactly why it goes first when you cannot fill both.
Each year's Roth IRA room expires. Skip 2026 and that $7,500 of tax-free space is gone for good. The 401k cap also resets annually, but its larger size means partial-savers rarely exhaust it, so the binding constraint is the Roth IRA.
Roth IRA contributions (not earnings) come out tax-free and penalty-free at any age under the Publication 590-B ordering rules. A 401k locks dollars until 59-1/2 outside narrow exceptions and the rule of 55. The Roth doubles as a deep emergency backstop.
Qualified Roth IRA growth is never taxed (26 U.S.C. § 408A(d)(2)), there are no lifetime required minimum distributions (§ 408A(c)(5)), and you can hold any fund or ETF instead of a curated plan lineup that may carry higher fees.
Maxing one, maxing both
What each path costs in 2026 dollars, before any employer match.
| If you can fund... | Do this | 2026 amount |
|---|---|---|
| Only the match | Capture every match dollar, then stop | Plan-specific (often 3 to 6% of salary) |
| The match + one account | Match, then max the Roth IRA | Match + $7,500 |
| The match + room for more | Match, max the Roth IRA, then 401k toward the cap | Match + $7,500 + up to $24,500 |
| Maxing both fully | Roth IRA + 401k employee deferral, both full | $32,000 of your own money |
At 50 or older the Roth IRA rises to $8,600 and the 401k adds an $8,000 catch-up. Employer contributions sit above your deferral, against the § 415(c) combined cap of $72,000. Run your own figures in the calculator.
When to max the 401k first
You are in a high bracket now, low later
If your current marginal rate is high and you genuinely expect a lower rate in retirement, the pre-tax 401k deduction is worth front-loading. The deduction is taken at today's high rate; withdrawals are taxed at tomorrow's lower one. Most workers are not in this position, and a Roth hedges the bet.
Your match needs a higher deferral
Some plans only match up to a percentage of pay you cannot reach without a larger 401k contribution. Always defer enough to capture the full match before funding the Roth IRA. The match is the one return that beats the Roth IRA's flexibility.
Max-out questions
Should I max out my 401k or Roth IRA first?+
After capturing the full employer match, max the Roth IRA first (2026 limit $7,500 under 26 U.S.C. § 408A(c)(2)), then return to the 401k toward the $24,500 employee deferral cap in 26 U.S.C. § 402(g). The Roth IRA's space is smaller and cannot be backfilled in a later year, it is more flexible (contributions come out tax-free and penalty-free any time per the IRS Publication 590-B ordering rules), and qualified growth is never taxed. The 401k's larger cap means there is almost always room left to keep going once the Roth IRA is full.
What if I can only afford to max one account?+
Max the Roth IRA. $7,500 of fully-funded Roth space beats $7,500 of 401k space for most savers: tax-free growth, no required minimum distributions in your lifetime (26 U.S.C. § 408A(c)(5)), the entire investment market instead of a plan menu, and emergency access to your contributions. The exception is the employer match, which always comes before either account because it is a guaranteed 50 to 100 percent return.
How much is maxing out both in 2026?+
$32,000 of your own money: $7,500 into the Roth IRA plus $24,500 into the 401k, both for 2026. At 50 or older the Roth IRA rises to $8,600 and the 401k adds an $8,000 catch-up (an $11,250 super catch-up at ages 60 to 63 under SECURE 2.0 § 109). Employer matching contributions sit on top of your $24,500 deferral, against the separate § 415(c) combined cap of $72,000.
What if I earn too much for a Roth IRA?+
Direct Roth IRA contributions phase out between $153,000 and $168,000 of modified AGI for single filers and $242,000 to $252,000 married filing jointly in 2026 (26 U.S.C. § 408A(c)(3)). Above that, use the backdoor Roth IRA: a non-deductible Traditional IRA contribution, then a conversion. The "max Roth IRA before maxing the 401k" order still holds.
When should I max the 401k before the Roth IRA?+
Two cases. First, if you are in a high current marginal bracket and expect a much lower bracket in retirement, the pre-tax 401k deduction can be worth front-loading. Second, if your plan requires a higher deferral percentage to unlock the full match, contribute enough to capture every match dollar before funding the Roth IRA. Outside those cases, the Roth IRA goes first.