Roth IRA vs. Roth 401(k)

The tax label is similar; the account wrapper is not

Roth IRA and designated Roth 401(k) contributions use after-tax dollars, and qualified distributions can be tax-free. The account rules, access, and investment choices remain different.

A Roth 401(k) is part of an employer plan. A Roth IRA is opened individually at a financial institution.

Start with employer match

An employer may match 401(k) contributions according to plan terms. The match can make contributing to the plan a high priority, even when the IRA has lower-cost or broader investments. Matching dollars may follow different tax treatment and vesting rules.

Use the 401(k) calculator to model the match and the Roth IRA calculator for long-term account growth.

Limits and eligibility differ

Workplace elective-deferral limits and IRA contribution limits are separate and change by year. Direct Roth IRA eligibility is restricted at higher modified adjusted gross income; designated Roth plan participation does not use that same income limit, though plan eligibility still applies.

Always check the current IRS limits rather than copying a prior-year amount.

Investment menus and fees differ

An IRA can offer a broad brokerage menu. A 401(k) uses the plan’s selected funds and may include administrative fees, institutional pricing, advice, or stable-value options unavailable in an IRA. Compare complete fees and suitability.

Access and distribution rules matter

Roth IRA ordering and contribution-access rules differ from workplace-plan distribution rules. Loans may be available from a 401(k) if the plan permits them; IRAs do not offer participant loans. Qualified-distribution five-year rules also require careful account-specific treatment.

Many savers can use both

The decision is not always exclusive. A common sequence is to capture full employer match, compare fees and investments, then allocate additional savings across IRA and workplace limits. Verify current rules and obtain qualified tax advice for conversions, rollovers, and early withdrawals.