An indexed universal life (IUL) insurance policy and an annuity share tax-deferred growth and index crediting options, but they serve different purposes. The table below compares the two products across the features that matter most for retirement planning:
IUL vs. Annuity: Which Retirement Strategy Is Better?
An indexed universal life (IUL) policy and an annuity are both used in retirement planning, but they serve different purposes. An IUL provides permanent life insurance and tax-advantaged cash value, while an annuity turns savings into a guaranteed income stream.
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Updated: July 10, 2026
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An IUL combines permanent life insurance with tax-advantaged cash value that you can access through policy loans in retirement.
An annuity is designed to provide guaranteed retirement income and doesn't require a medical exam.
IUL cash value has a 0% floor to protect against market losses, but growth is limited by cap rates, usually 8% to 12%.
Both products offer tax-deferred growth, but IUL policy loans are tax free, while annuity withdrawals are taxed as ordinary income.
Unlike 401(k)s and IRAs, IULs and non-qualified annuities don't have annual IRS contribution limits.
Some retirees use both products together, with an IUL providing tax-advantaged legacy planning and an annuity delivering guaranteed lifetime income.
IUL vs. Annuity: At a Glance
Primary Purpose | Permanent death benefit and cash value | Guaranteed retirement income |
Cash Value Growth | Index-linked with cap and 0% floor | Fixed, indexed or market-variable |
Market Risk | None (0% floor) | None for fixed/indexed, full for variable |
Tax Treatment | Tax-deferred, loans income-tax-free | Tax-deferred, withdrawals taxed as income |
Liquidity | Policy loans and withdrawals | Withdrawals and surrender charges in early years |
Contribution Limits | None (subject to MCE requirements) | None (non-qualified) |
Medical Underwriting | Required | Not required |
Best For | Estate planning and tax-free income | Guaranteed income without life insurance costs |
How Does an IUL Policy Work?
An indexed universal life (IUL) policy is a type of permanent life insurance that builds cash value based on the performance of a stock market index, such as the S&P 500. Your money isn't invested directly in the market. Instead, the insurer credits interest to your cash value, usually with a 0% floor that protects against market losses and a cap rate that limits annual gains.
Your premiums pay for the cost of insurance, policy fees and cash value growth. As long as your policy remains adequately funded, you can adjust your premium payments within certain limits.
The cash value grows tax deferred, and you can access it through tax-free policy loans during retirement as long as your policy stays in force and doesn't become a modified endowment contract (MEC). Keep in mind that insurance costs increase as you age, so consistent funding is important to keep your policy active and preserve its tax advantages.
How Does an Annuity Work?
An annuity is an insurance contract that turns your savings into future retirement income. You can fund it with a lump sum or a series of payments. In return, the insurer provides income for a set number of years or for the rest of your life. Unlike life insurance, annuities don't require a medical exam.
There are three main types of annuities:
- Fixed annuities earn a guaranteed interest rate.
- Variable annuities invest in the market, so returns can rise or fall.
- Fixed indexed annuities tie growth to a market index, usually with a floor that protects against losses and a cap that limits gains.
Your money grows tax deferred, but withdrawals are taxed as ordinary income. Most annuities also have a surrender period, usually six to 10 years, during which large withdrawals may trigger surrender charges.
IUL vs. Annuity Growth Potential
Both IULs and fixed indexed annuities can grow based on the performance of a stock market index, but they work differently.
An IUL usually has a 0% floor that protects against market losses and a cap rate of 8% to 12% that limits annual gains. Keep in mind that insurers can change cap rates over time. Policy fees and rising insurance costs also reduce overall growth.
A fixed indexed annuity also uses a floor and cap but doesn't have life insurance costs, so more of your earnings stay in the account. A variable annuity has greater growth potential because it's invested in the market, but your account can also lose value.
IUL vs. Annuity Retirement Income
An IUL provides retirement income through policy loans, which are tax free as long as your policy stays in force. You control how much and when you withdraw, but taking too much can cause your policy to lapse.
An annuity provides income through scheduled withdrawals or guaranteed lifetime payments. Many annuities can continue paying income for as long as you live. Annuities are a good choice if predictable retirement income is your top priority.
IUL vs. Annuity Tax Treatment
Both IULs and non-qualified annuities grow tax deferred, but withdrawals are taxed differently.
With an IUL, policy loans are tax free, and the death benefit is income tax free for your beneficiaries.
With a non-qualified annuity, withdrawals are taxed as ordinary income, and withdrawals before age 59½ are also subject to a 10% IRS penalty.
IUL vs. Annuity Costs and Fees
An IUL includes insurance costs, administrative fees and optional rider charges. Insurance costs increase as you age, which can reduce your cash value growth over time.
Annuity costs depend on the type of contract. Fixed and fixed indexed annuities have few or no annual management fees, while variable annuities charge investment and insurance fees. Most annuities also have a surrender period during which large withdrawals may trigger penalties.
IUL Pros and Cons
IUL Advantages
- Tax-free retirement income
Policy loans are tax free as long as the policy stays in force.
- Tax-free death benefit
Beneficiaries receive the death benefit free of income tax.
- Protection from market losses
Most policies have a 0% floor, so your cash value won't lose value in a negative market year.
- Flexible premiums
You can adjust premium payments within policy limits as your financial situation changes.
IUL Disadvantages
- Limited growth
Cap rates and participation rates limit how much your cash value can grow in strong market years.
- Rising insurance costs
The cost of insurance increases with age, which can reduce cash value growth over time.
- Complex policy design
Features such as cap rates, participation rates and policy fees make IULs more difficult to compare than other life insurance products.
- Medical underwriting
Most applicants must complete health underwriting to qualify.
- Risk of becoming a MEC
Overfunding the policy can create a modified endowment contract (MEC), reducing its tax advantages. A max-funded IUL is designed to contribute as much as possible without crossing the MEC threshold, preserving tax-free access to policy loans.
Annuity Pros and Cons
Annuity Advantages
- Guaranteed retirement income
Annuities provide income you can't outlive.
- No medical exam
Eligibility isn't based on your health.
- No annual contribution limits
You can contribute beyond the limits of retirement accounts like a 401(k) or IRA.
- Principal protection
Fixed and fixed indexed annuities protect your principal from market losses.
- Simple to understand
Fixed annuities offer guaranteed growth and predictable income.
Annuity Disadvantages
- Taxable withdrawals
Earnings are taxed as ordinary income when withdrawn.
- Surrender charges
Large withdrawals during the surrender period may trigger penalties.
- Death benefits are less tax efficient
Unlike life insurance, annuity death benefits don't receive the same favorable tax treatment. Beneficiaries owe ordinary income tax on any gains they inherit.
- Fees
Variable annuities have high investment and rider fees that reduce long-term returns.
- Early withdrawal penalty
Taxable withdrawals before age 59½ are subject to a 10% IRS penalty.
Bottom Line: Should You Choose an IUL or an Annuity?
The right choice depends on your retirement goals. An IUL is better if you need permanent life insurance and tax-advantaged cash value, while an annuity is better if you want guaranteed retirement income.
Choose an IUL If You:
- Need permanent life insurance.
- Have already maxed out your 401(k) and IRA.
- Want tax-advantaged retirement income and a tax-free death benefit.
- Qualify for life insurance and can fund the policy over the long term.
Choose an Annuity If You:
- Want guaranteed lifetime income.
- Don't need life insurance.
- Can't qualify for life insurance because of your health.
- Have a lump sum, such as a 401(k) rollover or inheritance, to invest.
Consider Both If You:
Some retirees use both products together. An annuity provides guaranteed income for essential expenses, while an IUL offers flexible, tax-advantaged income and a tax-free death benefit for beneficiaries. Together, they can provide both income security and estate planning benefits.
Frequently Asked Questions
It depends on your goals. An IUL is better if you need permanent life insurance, want tax-advantaged retirement income and plan to leave money to your beneficiaries. An annuity is better if your main goal is guaranteed lifetime income or you don't qualify for life insurance.
Yes. Many retirement plans use both. An annuity provides guaranteed income for essential expenses, while an IUL gives you flexible, tax-advantaged income and a tax-free death benefit for your beneficiaries.
In general, yes. Fixed and fixed indexed annuities offer guaranteed growth or income without rising insurance costs. An IUL requires ongoing funding and management to keep the policy in force as insurance costs increase with age.
Not completely. An IUL can supplement retirement income through policy loans, but it doesn't guarantee income for life. If your priority is a predictable paycheck throughout retirement, an annuity is the better choice.
Both products charge surrender fees if you withdraw money during the early years. You may also owe income taxes on any gains.
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About Patrick Bryant

Patrick Bryant is the Vertical Lead for Life and Health Insurance at MoneyGeek, where he researches insurance products, writes consumer guides and maintains the scoring methodologies behind our provider comparisons. He analyzed more than 50 life insurance carriers across multiple policy types, collecting thousands of quotes nationwide to evaluate rates, coverage options and underwriting factors. His methodologies are reviewed quarterly to reflect current market conditions and carrier data.




