Most people save for retirement with a 401(k) plan offered by their employer or a Roth IRA, and may supplement those savings with other traditional investment accounts.
Some life insurance policies — specifically permanent life insurance policies — offer a way to save for retirement. But a 401(k) is a better retirement investment than a life insurance retirement plan (LIRP) because LIRPs have high premiums and a low return on investment.
Saving for retirement isn’t one-size-fits-all. A LIRP can make sense for high-income earners with dependents who need lifelong financial support. It's best to consult a financial advisor if you're considering adding a LIRP to your financial plan.
Permanent policies include a cash value account that earns tax-deferred interest over time, which can be used to supplement retirement savings.
Most people shouldn’t use life insurance to save for retirement because earnings are low and permanent policies are expensive.
Pairing a 401(k) or IRA with a term life policy is the most cost-effective option if you need life insurance.
High-income earners who need lifetime insurance coverage may consider buying a life policy to supplement other investment vehicles.
Life insurance vs. 401(k)
Using life insurance to save for retirement isn't usually recommended, but it does have two advantages over a 401(k).
Guaranteed interest: Most policies offer at least a minimum interest of 0%, which 401(k) investments don’t have. This can protect you from losses in the event of an unexpected stock market downturn.
Liquidity: You can access the cash value of a policy at any time, whereas 401(k) withdrawals before age 59-½ will trigger a 10% penalty and income taxes. 
But the disadvantages usually outweigh any benefits of using life insurance to save for retirement.
High fees: Management fees are often much higher than you’d find in a 401(k). Average fees for a 401(k) are approximately 0.57%,  whereas expenses and fees for a permanent policy like indexed universal life insurance can be 3% and up.
High premiums: A $500,000, 20-year term policy costs around $97.08 per month for a 45-year-old male receiving average rates. A $500,000 whole life policy for that same profile would cost $952 per month.
Low rates of return: Recent research found that over an nine-year period, employee 401(k)s grew by an average of 15.6% per year.  Compare that to a fixed interest rate of 2-3% on a permanent policy.
These differences add up over time. Applied to $50,000 in savings, the fees above would equal $285 per year in a 401(k) vs. $1,500 per year with life insurance.
In the same vein, you could see investment growth of $7,950 a year at 15.6% interest compared to $1,500 per year at 3% interest, and you’d spend $855 more on life insurance each month to have whole life coverage.
What should you use for retirement savings?
Both a Roth IRA or a 401(k) are optimal for retirement savings. The main difference is that 401(k) plans must be established by an employer, and IRAs are usually opened by individuals.
You may find one better for your financial situation based on the tax implications — you pay income tax on 401(k) withdrawals, but not Roth IRA withdrawals — or the annual contribution limits.  Many people find that it makes sense to use both, and both are preferable to using life insurance for retirement.
When should you use life insurance for retirement savings?
At minimum, you should be maxing out your retirement account contributions each year — that’s $22,500 for 401(k)s and $6,500 for Roth IRAs in 2023 — before you consider a LIRP.  It also makes sense to factor in a LIRP if you also need lifetime coverage for estate tax or family care reasons.
The majority of people don’t need to use life insurance to supplement their retirement savings. Because permanent policies are five to 15 times more expensive than term policies, it’s much more cost effective to invest in a separate retirement account or post-tax investment account and buy affordable, easy-to-cancel term life insurance coverage.
How to use life insurance for retirement savings
If you choose to include life insurance in your retirement plan, you’ll need to buy a permanent insurance policy. Permanent life insurance policies come with a cash value account in addition to the standard death benefit. Each type of policy has different features and, most importantly, earns interest in a different way.
Traditional whole life insurance is the most stable and least complicated investment, but will likely gain less interest than a riskier universal life insurance plan. Indexed universal life insurance is another option that has (comparatively) high cash value growth.
There are a few ways you can use cash value funds to support your retirement:
Cash value withdrawal: With some policies, like universal life, you can make withdrawals from your cash value. Withdrawals are tax-free up to the amount you’ve paid in premiums.
Policy loan: A life insurance loan doesn’t come directly out of your cash value. Instead, the account is used as collateral. You can’t borrow more than you have in your account, and if unpaid interest pushes you above that amount, your policy will lapse.
Premium payments: Some permanent policies also allow you to pay your premiums using your cash value, which frees up that money for your retirement spending.
Reduced paid-up insurance: Another way to stop paying your premiums, this option allows you to use your cash value to purchase a smaller, fully paid policy.
Surrender for cash: If you no longer need life insurance coverage (most people need significantly less, if any, in retirement), you can give up your policy and take the cash surrender value as a lump-sum payout.
How are life insurance retirement plans taxed?
Unlike a 401(k), there’s no penalty for withdrawing from your cash value account before a certain age. But, you're taxed on withdrawals from your cash value much like you are taxed on qualifying 401(k) withdrawals.
You're not taxed on withdrawals or policy surrenders with a value lower than the amount you’ve paid into the policy so far (known as the cost basis of your policy). But, withdrawals above that amount are taxed as income.
What's the best way to save for retirement?
A 401(k) is always a better choice than a life insurance policy. Even if you would benefit from a LIRP, you should maximize contributions to your 401(k) and other retirement accounts before investing in life insurance alternatives.
LIRPs require you to own a permanent life insurance policy, which is significantly more expensive than term life insurance coverage. Most people don’t need to spend that extra money and will save more by instead investing in traditional retirement funds and buying a more affordable term policy.
Frequently asked questions:
Do you need life insurance if you have a 401(k)?
You need life insurance unless you’ve saved enough money to cover funeral costs and debts and provide for any dependents after your death.
What is the difference between a 401(k) and life insurance?
A 401(k) provides you with income in your retirement years, and life insurance provides financial support for your loved ones after you die.
Is life insurance a good way to save for retirement?
It's generally best practice to maximize contributions to your 401(k) or Roth IRA before including life insurance in your retirement plan, due to lower risk and higher rates of return.