401(k) vs. IRA: limits for 2026, employer match and the order to save in

Basics10 min read · updated 2 November 2026 · 10 sources

401(k) vs. IRA is the first question most American savers face, and the honest answer is usually both, in the right order. A 401(k) through your employer allows much higher contributions and often comes with free money in the form of a match. An IRA you open yourself offers more investment choice. A health savings account (HSA) can be the most tax-efficient of all. Here are the 2026 limits, the rules that matter and a common sequence for funding them.

401(k), IRA and HSA at a glance

All three are tax-advantaged: money inside grows without annual tax on dividends, interest or capital gains. They differ in who offers them, how much you can put in and what happens when you take money out. For 2026 the IRS raised the employee deferral limit for 401(k), 403(b), governmental 457 plans and the federal Thrift Savings Plan to $24,500 and the IRA limit to $7,500 (IRS retirement plan limits 2025).

Sources: IRS retirement plan limits (2025), IRS Notice 2025-67 (2025) for the $72,000 total and Rev. Proc. 2025-19 (2025) and IRS Publication 969 (2025) for the HSA. The IRS usually publishes the limits for the following year in October or November.

The 401(k) limit applies per person, not per plan: if you change jobs during the year, deferrals at both employers count toward the same $24,500. The IRA limit is shared between traditional and Roth IRAs. The HSA is tied to a high-deductible health plan; without one you cannot contribute.

The employer match: the highest return you will see

Many employers add money to your 401(k) when you contribute. In Vanguard's plans, the most common formula is 50 cents per dollar on the first 6% of pay, and the average total savings rate including employer contributions was 12.1% of pay in 2025 (Vanguard, How America Saves 2026). A match of 50% is an instant return no investment can promise. Missing part of it is the most expensive mistake in retirement saving.

Check two details in your plan documents. A vesting schedule can mean that the match only becomes yours after a few years of service. And some plans match per paycheck: if you hit the $24,500 limit early in the year, the match for later months may be lost unless the plan has a true-up.

Who can contribute to an IRA, and who can deduct it

Anyone with earned income can contribute to a traditional IRA. Whether the contribution is tax-deductible depends on income once you or your spouse are covered by a workplace plan. For 2026 the deduction phases out between $81,000 and $91,000 of modified adjusted gross income for single filers covered by a plan, and between $129,000 and $149,000 for married couples filing jointly when the contributing spouse is covered (IRS retirement plan limits 2025).

Roth IRA contributions have their own income limits: in 2026 they phase out between $153,000 and $168,000 for single filers and between $242,000 and $252,000 for married couples filing jointly (IRS retirement plan limits 2025). Above that, a direct Roth IRA contribution is not allowed. Which of the two makes more sense, paying tax now or later, is the subject of Roth vs. traditional.

In the 401(k) the question looks similar. 98% of Vanguard's plans offer a Roth option, yet only 18% of participants use it (Vanguard, How America Saves 2026). From 2026, catch-up contributions must go into the Roth account for employees who earned more than $150,000 in FICA wages in the previous year (IRS Notice 2025-67 2025).

The HSA: a retirement account in disguise

A health savings account has a tax advantage no other account offers. Contributions are deductible (or excluded from pay when made through payroll), earnings grow tax-free, and withdrawals for qualified medical expenses are tax-free (IRS Publication 969 2025). Withdrawals for anything else are taxable and, before age 65, cost an additional 20%; from 65 the extra tax no longer applies, and the HSA then works much like a traditional IRA (IRS Publication 969 2025).

That is why some savers pay current medical bills out of pocket and let the HSA grow invested for decades, keeping receipts for later reimbursement. It only works if your cash flow allows it and your plan offers sensible investment options. Some HSA providers keep the balance in cash by default; investing it can take an extra step.

A common order for funding the accounts

No single order is right for everyone, but planners often suggest a sequence like this. It reflects where each dollar earns the most, and it is a framework, not personal advice:

1. Emergency fund basics: at least a starter reserve, so that a surprise does not force a withdrawal with penalties (emergency fund).
2. 401(k) up to the full match: the 50% or 100% immediate return beats everything else.
3. High-interest debt: credit cards at 20% and more cost more than investments are likely to earn.
4. HSA, if eligible: the only account that is tax-free going in and coming out.
5. IRA: Roth or traditional, depending on your tax rate and income; more fund choice and often lower costs than the 401(k).
6. Back to the 401(k) up to $24,500: the higher limit makes it the main vehicle once the IRA is full.
7. Taxable brokerage account: no limits and full flexibility, taxed on dividends and realized gains (capital gains tax).

Two adjustments are common. If your 401(k) only offers expensive funds, the IRA may move ahead of contributions beyond the match. And if you expect to need the money before retirement, a taxable account or a Roth IRA keeps more flexibility than a traditional 401(k).

Getting money out: penalties and required distributions

The tax break comes with strings. Withdrawals from an IRA before age 59½ usually cost an additional 10% on top of income tax, with exceptions such as a first home purchase up to $10,000, higher education expenses, disability and substantially equal periodic payments (IRS Topic 557 2026). Similar rules apply to 401(k) plans.

At the other end, traditional accounts require minimum distributions starting at age 73. Roth IRAs need no withdrawals during the owner's lifetime, and neither do Roth accounts inside a 401(k) or 403(b). A missed distribution can cost 25% of the shortfall, or 10% if it is withdrawn within two years (IRS, required minimum distributions 2026). How much to withdraw in retirement is covered in safe withdrawal rate.

What research shows about retirement accounts

Behavior matters as much as tax rules. Madrian and Shea (2001) showed that automatic enrollment raised 401(k) participation sharply, and that many employees then stayed at the default contribution rate and fund. Today 61% of Vanguard's plans enroll new employees automatically (Vanguard, How America Saves 2026). The flip side: a low default rate can leave people saving too little for decades.

Leaving the match on the table is surprisingly common even when it makes no sense at all. Choi et al. (2011) studied employees over 59½, who could contribute, collect the match and withdraw immediately without penalty. At the average firm, 36% of them still contributed below the match threshold and lost on average 1.6% of their annual pay. Information about the lost money barely changed their behavior.

Which assets to hold in which account is a question of its own, called asset location. Dammon et al. (2004) show how taxable and tax-deferred accounts should be combined: in general, investments that generate a lot of taxable income belong in the tax-advantaged accounts first.

Common mistakes

• Contributing below the match: the most expensive and most common error.
• Cash in the account: contributions that sit uninvested in a settlement fund or HSA cash account miss decades of growth.
• Cashing out when changing jobs: a lump-sum payout usually triggers income tax and the 10% additional tax; rolling the balance into the new plan or an IRA avoids both.
• Ignoring fees: a fund with 1% annual cost instead of 0.1% takes a large share of the return over 30 years (costs and ETF basics).
• Too much company stock: the job and the savings then depend on the same firm.
• Forgetting the beneficiary form: for retirement accounts it overrides the will.

This article explains general rules and is not tax, legal or investment advice. Limits change every year and some rules depend on your plan; check the current figures with the IRS, your plan administrator or a tax professional.

This article explains a method; it is not investment or tax advice. Worked examples are simplified and rounded. All terms in the glossary.