A 401(k) is an employer-sponsored retirement plan that helps you save for the future. 401(k) plans are subject to the fiduciary and disclosure requirements of ERISA; plan assets receive unlimited federal creditor protection under ERISA §206(d).
An annuity is a long-term insurance contract issued by a life insurance company. Depending on the contract, the insurer may credit interest and/or later convert the contract value into a stream of income payments, in some cases for the life of the annuitant.
Both support long-term planning, but each works differently. Some use both, while others rely on only one. The right choice depends on factors like your risk tolerance and goals. It also depends on your age, tax situation, need for liquidity, employer match, and the specific features (fees, investment options, guarantees, distribution rules) of the plan and product being compared.
Read on to learn more about the differences between a 401(k) versus an annuity and how the features of each can affect retirement outcomes. We’ll show you key points and when choosing these savings plans can benefit your retirement strategy. This article is a general comparison; it is not a recommendation to purchase an annuity, to surrender an annuity, or to roll assets from a 401(k) into an annuity.
What is an annuity and how does it generate retirement income?
An annuity is a long-term insurance contract that, depending on the contract’s terms and payout election, may provide a stream of income at a future date. Any income or interest guarantees are subject to the claims-paying ability of the issuing insurance company.
You purchase one through an insurance company, either with a lump-sum payment or through ongoing contributions. The insurer invests your premiums and uses the terms of the annuity to calculate future payouts.
There are several types of annuities, including fixed, indexed, and variable annuities. Fixed annuities credit interest at a rate declared by the insurer and guaranteed for the periods specified in the contract. Fixed indexed annuities (FIAs) credit interest based on the performance of an external index (e.g., the S&P 500), subject to contract limits such as caps, participation rates, and spreads that the insurer generally has the right to change at each renewal; in a flat or negative index period, the credit may be 0%. Variable annuities allow allocation among subaccounts that participate in the market and can gain or lose value; variable annuities are also securities and are sold by prospectus. Many are tax-deferred, meaning that you don’t pay taxes on the principal or earnings while you’re saving, only when you withdraw money.
Annuities can support retirement income by converting savings into steady payments, which can last for a set period or for life. They’re a popular option for creating a predictable retirement income stream. Not all annuities provide lifetime income by default; the payout depends on the contract’s payout options and any income rider elected.
What is a 401(k) and how does it support retirement savings?
First things first: Is a 401(k) an annuity? No. While this is a common point of confusion, 401(k)s are employer-sponsored retirement plans. People sometimes confuse 401(k)s with annuities because they share similarities. For example, like annuities, many 401(k)s grow tax-deferred. And both begin withdrawals in retirement.
For a 401(k), you choose how to invest contributions from a menu of products, like mutual funds, target-date funds, and other options. Many employers match your contributions, which increases the value of your retirement account. 401(k) plans are subject to ERISA, which imposes fiduciary duties on the plan sponsor and its designated fiduciaries with respect to plan investments and expenses.
The IRS sets annual contribution limits for 401(k)s. These limits apply to employee contributions and total combined contributions from you and your employer.
How 401(k)s and annuities can fit together in a retirement plan
Some consumers use both a 401(k) and an annuity as parts of a retirement plan; whether that combination is appropriate depends on the consumer’s facts and objectives, and any decision to move assets from a 401(k) into an annuity is a significant transaction that should be evaluated carefully. Here’s how.
Distributions from a 401(k) after retirement
Once you reach age 59½, you can withdraw money from your 401(k) without the 10% federal additional tax penalty (ordinary income tax still applies). It is important to note that a 401(k) participant who separates from service in or after the year they turn 55 can generally take distributions from that plan without the 10% additional tax an age-55 exception that is unique to employer plans and is not preserved on rollover to an IRA. Similarly, a still-working owner of a 401(k) who is not more than a 5% owner can generally defer RMDs from that plan under the plan-level still-working exception, which does not exist for IRAs.
Considerations for a possible rollover
A 401(k) balance can generally be rolled directly to an IRA (including an IRA annuity) on a tax-deferred basis. Before rolling assets out of an employer plan, consider the following material features that are given up on rollover: (i) ERISA fiduciary oversight of plan investments and expenses; (ii) unlimited federal creditor protection under ERISA (IRA assets have federal bankruptcy protection only up to the BAPCPA cap of $1,711,975 in 2026, plus whatever state law provides outside of bankruptcy); (iii) age-55 separation-from-service exception described above; (iv) the plan-level still-working exception to RMDs for non-5%-owners; (v) any potential institutional-class investment pricing available in the plan; and (vi) any ongoing employer match or contribution. Because an IRA is already tax-deferred, an annuity held inside an IRA does not provide additional tax deferral; the reason to consider an IRA annuity is for its other features (such as a guaranteed interest rate, principal protection, or the ability to convert savings into an income stream).
Income layering with Social Security
An annuity can work alongside Social Security to create a stable income floor. This combination helps retirees cover essential expenses with predictable deposits. It also preserves other savings during market downturns by reducing the need to withdraw from them.
401(k) versus annuity: Six key differences that affect retirement outcomes
Knowledge is power when deciding on the best savings strategy for retirement. Keep the following key differences between a 401(k) and an annuity in mind before making any decisions.
Contribution restrictions
The IRS sets annual contribution limits on 401(k)s. Currently, they are $24,500 for individuals and $72,000 for total matching contributions (individual plus employer).
The IRS allows for higher catch-up contributions of $8,000 annually for adults over 50 and $11,250 for those between 60 and 63 years of age. Under SECURE 2.0, catch-up contributions by high-earner participants (those whose prior-year FICA wages from the sponsoring employer exceed $145,000, indexed) must be made as designated Roth contributions; plans that do not offer a designated Roth feature cannot accept catch-ups for high earners. Employers can match catch-up contribution amounts, but they aren’t required to.
The IRS doesn’t set contribution limits on non-qualified annuities, though the issuing insurer may apply their own limits. An annuity held inside an IRA (an IRA annuity) is still subject to the applicable IRA contribution limit for the tax year ($7,500 for 2026; $8,500 for age 50+; see IRS.gov for updates).
Why this matters:
Non-qualified annuities have no federal contribution cap, but that flexibility comes without a current-year tax deduction and does not increase the amount that can be contributed to a tax-preferenced retirement account. A 401(k) offers strong growth potential, especially with employer matching.
Employer participation
With 401(k)s, employers can match contributions, increasing the value of your retirement savings. But annuities only take individual contributions, so there’s no matching potential.
Why this matters:
You may be able to save more with a 401(k), as long as your planned contributions stay within IRS limits. An annuity is helpful when you want guaranteed income or when your savings exceed what you can place in a retirement plan each year. It also supports long-term planning for people who want predictable income rather than market-based growth. Employer matching is a material feature that is forfeited if a participant stops contributing to the plan.
Tax implications
In most cases, you contribute to your 401(k) with pre-tax dollars, and you don’t pay taxes on these savings as they grow. But withdrawals in retirement are taxed as ordinary income. A designated Roth 401(k) is available in many plans; Roth contributions are made with after-tax dollars, and qualified distributions of Roth contributions and earnings are federal-income-tax-free.
This tax-deferral rule is true for qualified annuities, but not for non-qualified annuities.
A qualified annuity is one held inside a tax-preferenced retirement arrangement (IRA, 401(k), 403(b), governmental 457(b)). Contributions may be pre-tax or, in a designated Roth account, after-tax. Pre-tax qualified annuity distributions are taxed as ordinary income; qualified Roth distributions are generally federal-income-tax-free. But with non-qualified annuities, you put in after-tax dollars. You only pay taxes on interest earned when you take money out. Non-annuitized withdrawals from a non-qualified annuity follow last-in, first-out (LIFO) ordering, meaning the earnings portion comes out first and is taxable before principal.
Withdrawal regulations
Both 401(k)s and tax-deferred annuities are subject to IRS penalties on early withdrawals.
If you take money out from either before you hit 59½ years of age, the IRS may charge a 10% penalty. You’ll also pay income tax on the withdrawal. The 10% additional federal tax is imposed by IRC §72(t) on qualified plan and IRA distributions and by IRC §72(q) on non-qualified annuity distributions. Statutory exceptions include age 59½, death, disability, and, for qualified employer plan distributions only, separation from service in or after the year the participant turns 55 SECURE 2.0 added additional exceptions, including terminally-ill distributions, emergency personal-expense distributions up to $1,000, domestic-abuse distributions, federally-declared-disaster distributions up to $22,000, and, effective for distributions after December 29, 2025, long-term-care insurance premium distributions from qualified plans or IRAs up to $2,500 per year.
Annuities typically have a surrender period of six to eight years after opening the contract; exact surrender-charge schedules are contract-specific. If you withdraw money during this time, you’ll pay a surrender charge (typically a declining percentage of the contract value) and, where the contract provides, a market-value adjustment (MVA), on amounts in excess of the contract’s free-withdrawal amount.
Why this matters:
Neither option is ideal for short-term needs. Both are better suited for long-term goals where you can leave your money invested and avoid extra costs that reduce your overall savings.
Risk
A 401(k) invests in market-based assets like stocks and mutual funds, so returns depend on how well the market performs. Your retirement account can rise or fall based on these changes.
Risk levels vary with annuities. Fixed annuities offer guaranteed returns. Guarantees typically apply for a stated guarantee period; the renewal rate at the end of that period is set by the insurer, subject to a contractual minimum. Variable annuities invest in market subaccounts and can rise or fall with the market.
Indexed annuities fall in between. The main advantage is this type of annuity protects your principal investment from losses caused by negative index performance. Index credits in a fixed indexed annuity are calculated from an external index but are not a direct investment in the index; the credit is generally limited by caps, participation rates, and spreads that the insurer generally has the right to change at each renewal within limits stated in the contract and may be 0% in a flat or negative index period. Contract charges, surrender charges, and where applicable an MVA can still reduce contract value during the surrender-charge period.
Why this matters:
Your risk tolerance should guide your choice in retirement accounts and types of annuities.
Investment options
With a 401(k), your employer offers a curated list of investment choices selected by the plan sponsor. You decide how to allocate contributions among these options. Some employer plans provide institutional-class share pricing that may not be available in a retail IRA.
Annuities give you choices based on the contract you purchase rather than a broad investment lineup. The range of options depends on the insurer and type of annuity you choose. For example, you could select a fixed annuity that provides guaranteed returns and avoid exposing your savings to market fluctuations.
Common mistakes when comparing annuities and 401(k)s
As you compare annuities and 401(k)s, pay attention to common mistakes people make when assessing them:
- Comparing returns instead of income: A 401(k) can have higher growth potential, but it doesn’t guarantee income. Annuities can provide predictable payments, which some people value more than market-driven returns.
- Ignoring fees: Both 401(k)s and annuities come with fees, such as management costs. Annuities also offer optional riders that add benefits but increase fees. Consider all expenses in your savings projections as they impact long-term results.
- Assuming annuities replace all investing: Many annuities are designed for stability and future income. They work best alongside other investments that offer more potential for growth.
- Overlooking plan-level features on rollover: Moving assets from a 401(k) into an IRA annuity gives up the age-55 exception, the plan-level still-working RMD exception, unlimited ERISA creditor protection, and any employer match. Weigh these features before consolidating.
When an annuity may fit alongside a 401(k)
An annuity may fit a consumer’s plan in scenarios such as:
- Close to or in retirement: If you’re close to retirement and want a reliable income, an annuity lets you convert your savings into structured payments. This supports long-term budgeting and reduces uncertainty during market volatility.
- Income floor needs: Suppose you want a certain amount of money each month to cover basic expenses in retirement. An annuity works well for retirees who want dependable deposits.
- Low risk tolerance: If you’re uncomfortable having your money invested in market-dependent structures, you can opt for a fixed annuity, which is not exposed to market-value volatility.
Can you move money between a 401(k) and an annuity?
In some cases, you can roll a 401(k) into a qualified annuity. This is typically done through a direct transfer from the 401(k) plan to the annuity provider. You can also wait until you’re 59½ and withdraw money from the 401(k) and put it into the annuity of your choice. Keep in mind taxes and rollover rules still apply. A rollover of 401(k) assets into an IRA annuity is a significant transaction and you should consider the material features you are giving up in the plan, as described above.
You can also sometimes roll an annuity into a 401(k), though this is a less common move, subject to more limiting rules. The 401(k) plan must accept qualified annuity transfers, which is rare. A separate concept is a 1035 exchange, which permits a like-kind exchange from one non-qualified annuity contract to another on a tax-deferred basis; 1035 does not apply to a 401(k) rollover.
Learn more about Gainbridge Save℠
The best retirement plans help you meet your savings goals while respecting your risk levels and contribution potential. Take a step in the right direction by researching how to achieve the right mix, which could mean relying on a 401(k), an annuity, or both.
If you are considering funding an IRA annuity with a 401(k) rollover, review the plan-level features and protections listed earlier in this article, and consult a licensed insurance producer and a qualified tax advisor before proceeding.
This article is intended for informational purposes only. It is not intended to provide, and should not be interpreted as, individualized investment, legal, or tax advice, and is not a recommendation to purchase an annuity, to surrender an annuity, or to roll assets from any employer retirement plan into an annuity. The Gainbridge® digital platform provides informational and educational resources intended only for self-directed purposes.
Rollover considerations: Before rolling assets out of an employer-sponsored retirement plan (such as a 401(k)), consider the plan’s investment options and costs, the level of services available, in-service distribution rules, the federal tax treatment of employer stock (if applicable), the ERISA creditor protection available inside the plan, the availability of penalty-free distributions in or after the year of separation from service at age 55 under IRC §72(t)(2)(A)(v), the plan-level still-working exception to RMDs, and any employer match or contribution that would be lost. IRA product costs may be higher than plan-level costs, and IRA creditor protection outside of federal bankruptcy is set by state law.
Tax rules stated in this article reflect the Internal Revenue Code as amended through the SECURE 2.0 Act of 2022 and 2026 dollar amounts published by the IRS in Notice 2025-84 / Rev. Proc. 2025-32. Tax rules are subject to legislative and regulatory change; see IRS.gov for updates.
