Roth vs. 401(k): Where to Put Your Money First
You've got money to invest and a confusing menu of accounts — 401(k), Roth, Traditional, HSA, brokerage. Which one gets the next dollar? There's a clean priority order that works for almost everyone, and a single question that settles the Roth-vs-pre-tax debate at each step.
The golden rule: get the full employer match first (free money)
Before anything else, contribute enough to your 401(k) to capture every dollar of your employer's match. This is the one move in personal finance that's close to a free lunch, and skipping it is the most expensive common mistake.
A typical match might be "100% of the first 3%, then 50% of the next 2%." In plain terms: if you earn $60,000 and contribute 5% ($3,000), your employer might drop in another $2,400. That's an instant 80% return on your contribution — before the market does anything at all. No investment you'll find anywhere reliably pays that.
One caution: matches often come with a vesting schedule, meaning you have to stay at the company a few years before the matched money is fully yours. It's still worth capturing — just know the rules if you might leave soon.
Step 2 — the HSA if you qualify (triple tax advantage)
If you're enrolled in a high-deductible health plan (HDHP), you can fund a Health Savings Account — and it's quietly the most tax-advantaged account in America. It's the only one with a triple tax break:
- Money goes in pre-tax, lowering this year's taxable income.
- It grows tax-free — no tax on interest, dividends, or gains.
- It comes out tax-free when used for qualified medical expenses.
No other account does all three. The power move: if you can afford to pay current medical bills out of pocket, invest the HSA balance and let it compound for decades. Keep your receipts — you can reimburse yourself tax-free years later. After age 65, you can also withdraw HSA funds for any purpose (taxed like a Traditional IRA), so a well-funded HSA effectively becomes a stealth retirement account.
Step 3 — max an IRA (Roth or Traditional)
Once the match and HSA are handled, open an IRA and work toward maxing it. Why an IRA before finishing the 401(k)? Two reasons: you typically get a far wider menu of low-cost investments than a workplace plan offers, and you avoid any high fees that sometimes lurk inside 401(k) lineups.
The big choice here is Roth versus Traditional — the same tax-now-or-tax-later question we cover below. For most early- and mid-career savers, the Roth is the popular pick because you lock in decades of tax-free growth at today's likely-lower rate. We break the whole decision down in Roth vs. Traditional IRA, including income limits and the backdoor Roth for high earners.
Whichever you choose, the contribution limit is the same across both accounts combined, so you can't double up. If you're not sure how much of an IRA you can realistically fund alongside everything else, model it inside our retirement calculator and watch how each annual contribution changes your projected nest egg.
Step 4 — back to the 401(k) to max it
Maxed your IRA and still have money to invest? Excellent — return to the 401(k) and push contributions toward the annual limit. The 401(k) limit is several times larger than the IRA limit, so this is where serious savers do the bulk of their tax-advantaged investing.
Here, again, you'll often choose between a Roth 401(k) and a pre-tax (Traditional) 401(k) if your plan offers both. The decision rule is identical to the IRA one — it comes down to your tax rate now versus later. A handy detail: even if you contribute to a Roth 401(k), your employer's match always lands in the pre-tax side, so you'll naturally end up with some tax diversification either way.
Want to see exactly how the Roth and pre-tax routes stack up in dollars for your situation? Run both through our Roth vs. 401(k) calculator — it shows the after-tax value of each so the abstract tradeoff becomes a concrete number.
Step 5 — taxable brokerage
If you've maxed the match, the HSA, your IRA, and your 401(k) — congratulations, you're investing more than most people ever will. The next stop is a plain taxable brokerage account. There's no contribution limit and no special tax shelter, but two features make it genuinely useful:
- Total flexibility. No age-59½ rule, no penalties — you can access the money whenever you need it, which makes it ideal for goals between now and traditional retirement (think early retirement, a future home, or a sabbatical).
- Favorable rates. Long-term capital gains are generally taxed at lower rates than ordinary income, and you control the timing of when you sell.
A low-cost, broadly diversified index fund is the classic choice here. If you don't yet have a brokerage you like, a low-fee provider keeps more of your returns in your pocket — Compare investing platforms and pick one with no account minimums and commission-free index funds.
Roth vs. pre-tax: the one-question decision
At nearly every step above, you face the same fork: Roth (pay tax now) or pre-tax/Traditional (pay tax later). Strip away the jargon and it's a single question:
Will your tax rate be higher now, or in retirement?
- Higher (or equal) rate later → lean Roth. Pay the tax now while it's cheaper, then enjoy tax-free withdrawals when rates may be higher. Early-career savers and anyone expecting their income to climb usually fit here.
- Higher rate now, lower later → lean pre-tax. Grab the deduction at your top bracket today, defer the tax, and pay it at a lower rate in retirement. High earners in peak years often fit here.
- Genuinely unsure → split it. Putting some money in each gives you tax diversification and the flexibility to manage your taxable income in retirement.
Putting it together with an example
Meet Maya, 30, earning $70,000 with $700/month to invest. Here's the priority order in action:
- Match first. Her employer matches 100% of the first 4%. She contributes 4% ($233/month) to her 401(k) and captures the full match — an instant doubling of those dollars.
- HSA. She's on an HDHP, so she routes $150/month into her HSA, invests it, and pays small medical bills from cash. That balance is now compounding triple-tax-free.
- IRA. With roughly $300/month left, she opens a Roth IRA — at 30, her tax rate is likely lower now than it'll be later — and chips away at the annual limit.
- Back to the 401(k) / brokerage. In a year she gets a raise, the extra goes toward maxing the 401(k); anything beyond that lands in a taxable brokerage for flexibility.
Notice she never agonized over a single "best" account — she just followed the ladder, captured free money first, and used the tax-rate question to pick Roth. Plug your own numbers into the retirement calculator and the Roth vs. 401(k) calculator to see your version of Maya's ladder.
Frequently asked questions
Always capture the full employer match first — it's a guaranteed return nothing else matches. After that, aggressively pay down high-interest debt (think 20%+ credit cards) before adding to investments, since erasing that interest is a risk-free return few investments can beat.
IRAs usually offer a wider, cheaper menu of investments than employer plans, and some 401(k)s carry high fees. Once you've taken the match, filling the IRA first often means lower costs and more control — then you return to the 401(k) for its much larger contribution room.
No match means no "free money" step, so many people start with the HSA (if eligible) and a maxed IRA for their lower fees and flexibility, then circle back to the 401(k). The 401(k) is still valuable for its high limit and tax savings.
Yes. A workplace 401(k) and a personal IRA have separate limits, so you can fund both. A Roth IRA does have income limits, but the priority ladder is designed precisely so you use multiple accounts together rather than choosing just one.