Compare pre-tax (401k) vs after-tax (Roth IRA) retirement savings. See the real difference after taxes at retirement.
Roth IRA wins by $119,021
Since your retirement tax rate (15%) is lower than your current rate (22%), the traditional 401k wins. You save more by deferring taxes to when your rate is lower.
| Feature | 401k | Roth IRA |
|---|---|---|
| Tax on Contributions | Pre-tax (reduces income now) | After-tax (no deduction) |
| Tax on Withdrawals | Taxed as ordinary income | Tax-free |
| 2026 Contribution Limit | $23,500 | $7,000 ($8,000 if 50+) |
| Employer Match | Yes | No (Roth 401k: Yes) |
| Required Min. Distributions | Yes, at age 73 | No (Roth 401k: Yes until rollover) |
| Early Withdrawal Penalty | 10% + taxes before 59.5 | Contributions anytime; earnings 10% before 59.5 |
| Income Limits | None | $161K single / $240K married |
| Best If | Higher tax bracket now | Lower tax bracket now |
A traditional 401k is an employer-sponsored retirement account funded with pre-tax dollars. Every dollar you contribute reduces your taxable income by that amount. If you earn $80,000 and contribute $6,000, you are only taxed on $74,000. Your money grows tax-deferred, meaning you pay no taxes on gains until you withdraw in retirement, when it is taxed as ordinary income.
The biggest advantage of a 401k is the employer match — many companies match 50-100% of your contributions up to a certain percentage of your salary. A 50% match on 6% of salary is an instant 3% raise. Always contribute enough to capture the full match before considering other options.
A Roth IRA is funded with after-tax dollars — you get no tax deduction now, but all withdrawals in retirement are completely tax-free, including decades of investment growth. If you invest $500/month for 30 years at 7% growth, you will have over $580,000 — and every penny comes out tax-free.
Roth IRAs also have no Required Minimum Distributions (RMDs), meaning you never have to withdraw if you do not need to. This makes them excellent estate planning tools. You can also withdraw your contributions (not earnings) at any time without penalty, providing more flexibility than a 401k.
The decision ultimately comes down to one question: will your tax rate be higher or lower in retirement? If higher later, pay taxes now (Roth). If lower later, defer taxes (401k). Most financial advisors recommend young workers prioritize Roth contributions since their income and tax rate will likely increase over their career.
The best strategy for most people is a combination: contribute enough to the 401k to get the full employer match, then max out a Roth IRA ($7,000/year), then go back and increase 401k contributions. This provides tax diversification in retirement.
A traditional 401k uses pre-tax dollars (reducing your taxable income now) and you pay taxes when you withdraw in retirement. A Roth IRA uses after-tax dollars (no tax break now) but all withdrawals in retirement are completely tax-free, including all growth.
If you expect to be in a higher tax bracket in retirement, Roth is better (pay lower taxes now). If you expect a lower tax bracket in retirement, 401k is better (defer to lower rate). Most young workers benefit from Roth since their income and tax rate will likely increase over time.
Yes. You can contribute to both a 401k through your employer and a Roth IRA on your own. In 2026, the 401k limit is $23,500 and the Roth IRA limit is $7,000 ($8,000 if 50+). Many financial advisors recommend using both for tax diversification.
Yes — always contribute enough to get the full employer match before putting money anywhere else. An employer match is an instant 50-100% return on your money. Not taking the full match is literally leaving free money on the table.
Generally, if your current marginal tax rate is 32% or higher, traditional 401k may be better. If your rate is 22% or lower, Roth is often preferred. Between 22-32%, consider splitting contributions between both. Roth IRA has income limits — in 2026, you cannot contribute directly if you earn over $161,000 (single).