Roth IRA vs 401(k): Where to Invest First

When you have limited dollars to invest for retirement, where you put them matters as much as how much you save. A 401(k) and Roth IRA serve different purposes and have different tax treatments. The conventional wisdom — get the match, max the Roth, then fill the 401(k) — is a solid framework, but the details matter. Here is the decision tree that optimizes your retirement investing order.

Step 1: Get Your Full 401(k) Employer Match

This is the most important step, and it comes before everything else. If your employer matches 401(k) contributions — say 50% of the first 6% you contribute — that match is an instant 50% return on your money. No investment in the world beats that.

Example: You earn $80,000 and your employer matches 50% of the first 6%. Contributing 6% ($4,800/year, or $400/month) gets you $2,400 in free money. Anything less means you are leaving guaranteed returns on the table.

Always contribute at least enough to get the full employer match. Always. There is no exception to this rule.

Use our 401(k) calculator to see how much your match adds up to over your career.

Step 2: Max Out Your Roth IRA

After securing the full match, direct your next retirement dollars to a Roth IRA. Why? Three reasons:

• Tax-free growth and withdrawals: You pay tax on contributions now but never again — all growth and withdrawals in retirement are completely tax-free
• No Required Minimum Distributions: Unlike a traditional 401(k) or IRA, Roth IRAs have no RMDs. Your money can grow tax-free for your entire life and even pass to heirs tax-free.
• Flexibility: You can withdraw Roth IRA contributions (not earnings) at any time without penalty. This gives you an emergency backstop that a 401(k) does not.
• Tax diversification: Having both pre-tax (401k) and after-tax (Roth) buckets gives you maximum control over your tax bracket in retirement

The 2026 Roth IRA contribution limit is $7,000 ($8,000 if you are 50 or older). That is $583/month for the standard limit. Model your Roth growth with our Roth IRA calculator.

Roth IRA Income Limits for 2026

Not everyone can contribute directly to a Roth IRA. The income phase-out ranges for 2026 are:

• Single filers: Full contribution up to $150,000 MAGI; reduced from $150,000-$165,000; no direct contribution above $165,000
• Married filing jointly: Full contribution up to $236,000 MAGI; reduced from $236,000-$246,000; no direct contribution above $246,000

If your income exceeds these limits, you can still use the backdoor Roth IRA strategy: contribute to a traditional IRA (no income limit for non-deductible contributions), then convert it to a Roth. This is legal and widely used, though it has complications if you hold other traditional IRA balances (the pro-rata rule).

Step 3: Go Back and Max Your 401(k)

After you have the match and the Roth IRA is maxed, direct remaining retirement savings back to your 401(k). The 2026 contribution limit is $23,500 ($31,000 if you are 50+). Combined with the employer match, a 401(k) can shelter a massive amount of income from current taxes.

The key benefit at this stage is the tax deduction. Every dollar you contribute to a traditional 401(k) reduces your taxable income. In the 24% bracket, a $23,500 contribution saves you $5,640 in federal taxes this year. That tax savings compounds over decades.

Roth 401(k) Option

Many employers now offer a Roth 401(k) option. Contributions are after-tax (no deduction now), but withdrawals in retirement are tax-free. Consider the Roth 401(k) if:

• You are early in your career and in a low tax bracket
• You expect your tax rate in retirement to be higher than today
• You already have substantial pre-tax retirement savings and want tax diversification

Check your current tax bracket to decide whether pre-tax or Roth contributions make more sense for you right now.

Step 4: Beyond the 401(k)

If you have maxed out your 401(k) and Roth IRA and still have money to invest, consider these in order:

• Health Savings Account (HSA): If you have a high-deductible health plan, the HSA is the only triple-tax-advantaged account: tax-deductible contributions, tax-free growth, and tax-free withdrawals for medical expenses. After 65, it functions like a traditional IRA for non-medical expenses.
• Taxable brokerage account: No contribution limits, no income limits, no withdrawal restrictions. Long-term capital gains are taxed at favorable rates (0%, 15%, or 20%). This is where high earners build wealth beyond tax-advantaged limits.
• Mega backdoor Roth: If your 401(k) plan allows after-tax contributions and in-plan Roth conversions, you can contribute up to the total 401(k) limit ($70,000 in 2026 including employer match) on an after-tax basis and convert to Roth.

What Is the Best Order for Retirement Account Contributions?

To summarize the optimal investing priority:

• 1. 401(k) up to employer match (instant 50-100% return)
• 2. Roth IRA to the max (tax-free growth, flexibility, no RMDs)
• 3. 401(k) to the max (tax-deferred growth, big contribution limit)
• 4. HSA if eligible (triple tax advantage)
• 5. Taxable brokerage (unlimited, flexible, favorable capital gains rates)

People Also Ask

The Bottom Line

The match-first, Roth-second, 401(k)-third order works for the vast majority of people. It maximizes free money, tax-free growth, and tax diversification. The only exception is if you are in a very high tax bracket (32%+) and do not qualify for a Roth — in that case, maximizing pre-tax 401(k) contributions for the current deduction may take priority.

Start by checking your 401(k) match with our 401(k) calculator, then model Roth growth with the Roth IRA calculator, and use the tax calculator to see how each contribution type affects your current tax bill.