Term vs. whole life vs. IUL: how each one works

Why does one policy cost fifteen times another?

Because two of them price a risk that ends and one prices a risk that doesn't. Term rents coverage for a fixed window. Whole life and indexed universal life pre-fund a claim the company expects to pay someday. Every price gap you see comes out of that.

The confusion gets framed the same way everywhere. A poster on the professional forum Blind said term is simpler and the personal-finance voices all say avoid the rest, “however if you ask any insurance agent they will sell you whole/IUL.” The reply underneath was the standard rebuttal: buy term, invest the difference. Both sides are arguing conclusions. Neither explains the machine.

Worth knowing how badly this market is priced in people's heads. LIMRA and Life Happens found in their 2025 Insurance Barometer Study that 51% of Americans aged 18 to 75 own life insurance, and that healthy 18–30-year-olds asked to guess the premium on a $250,000 20-year level term policy overestimated the true median cost by about 10 to 12 times. The same study put the overall need-gap at 40%, down from 42%.

What does one year of death-benefit risk actually cost?

Multiply the chance you die this year by the amount payable. That's the raw cost of the promise. The Social Security Administration's period life table for 2023, used in the 2026 Trustees Report, puts a 40-year-old man's probability of dying within a year at 0.003115. On $100,000 that's $311.50.

Run it forward and the whole industry's shape appears. At 55 the probability is 0.007491, so $100,000 costs $749.10. At 65, 0.016455 gives $1,645.50. At 75, 0.033802 gives $3,380.20. At 85, 0.092680 gives $9,268.00 for a single year of the same coverage. Nothing else in the pricing comes close to that curve in size.

One honest wrinkle: those are general-population numbers, and insured pools are healthier. The VA charges $67.20 a year for $40,000 of VGLI term at ages 40–44, under rates effective July 1, 2025, while the SSA table implies $124.60 of raw mortality cost on that same amount. The gap is selection. Underwriting exists to find it, which is why two 40-year-olds get two prices.

If you'd rather see this with your own numbers in it, run it through the calculators first.

Why is a level term premium level when the risk isn't?

Because the insurer averages twenty years of rising mortality cost into one number and collects it evenly. You overpay early, underpay late, and the company holds the difference as a reserve to fund the back end. Leveling is an accounting choice, not a change in the risk.

You can watch the alternative in public. VGLI doesn't level anything — it re-prices in five-year age bands. For $40,000 the monthly cost runs $5.60 at 40–44, $7.60 at 45–49, $11.60 at 50–54, $20.00 at 55–59, then $34.00 at 60–64. That's the raw curve, uncushioned.

The catch in leveling is what it does if you leave early. Cancel a level term policy in year four and you've paid ahead for years of risk you never used, with nothing returned. It also explains the shock at the end: when the level period expires, coverage usually continues at annually increasing rates, and you're paying the raw curve again at 60 instead of 40.

Where does a whole life premium actually go?

Three places every year: the mortality cost for that year, the insurer's expenses and commissions, and a reserve that appears on your statement as cash value. It costs many times term at the same age because the early premiums are pre-funding your seventies, eighties and nineties while you're forty.

The VA publishes both kinds of product, so the shapes compare with real numbers instead of sales material. VALife is what the VA calls guaranteed acceptance whole life: up to $40,000 of coverage, a premium contractually level for life, cash value that starts building two years after approval, and a two-year waiting period during which a death returns premiums plus interest. At 40 it costs $22.00 a month per $10,000, so $40,000 runs $88.00 a month, or $1,056 a year.

Put that against the VA's own term price for the identical $40,000: $5.60 a month, $67.20 a year. Divide, and $1,056 ÷ $67.20 = 15.7. Same publisher, same face amount, same age, 15.7 times the price.

Watch the term price climb and the multiple explains itself. That flat $1,056 already beats the $662.40 a year that $40,000 of VGLI costs at 65–69. It sits level with the $1,032 charged at 70–74. And it's well under the $1,848 charged at 75–79. Somewhere in the mid-seventies the lines cross. The rest of the difference is acquisition expense, weighted into the first years, plus the reserve that becomes a contractual cash value schedule — an obligation of the issuer, and only as sound as the issuer.

How does an IUL credit interest, and what comes out first?

An IUL is a universal life chassis with an index-linked crediting formula attached. You aren't invested in the index. The insurer credits interest based on how a named index moved over a segment, limited by a cap or participation rate on the upside and a floor on the downside, then deducts its monthly charges from the same account value.

Guardian, describing its own indexed universal life product, names the three levers. A cap rate is “the maximum interest rate your cash value can grow by in a specific period,” typically around 8%–12%. A participation rate is “the percentage of the underlying market index's gain credited to your cash value,” usually 50% to over 100%. A floor is “a guaranteed minimum interest rate — commonly set at 0%.” Guardian is blunt about what you own: “your money is not actually invested in the market.”

Run the levers and the mystery goes away. Index gains 18%, cap is 9%? You get 9%. Index gains 10%, participation rate is 60%? You get 6%. Index falls 12%, floor is 0%? You get nothing. And the formula usually measures index price movement, not total return, so index dividends aren't in your credit.

Then the charges come out, in every one of those scenarios. Guardian's own list names the premium load, the cost of insurance, administration fees, surrender charges, and fund management fees. Cost of insurance is the big one, calculated on the amount at risk at your current age, so it climbs the same curve you saw above. A 0% floor stops the index credit going negative. It does not stop the account value falling, because the deductions still happen — Guardian says policy values “can still decline due to cost of insurance charges, fees, loans, or withdrawals.” String enough flat years onto a thinly funded policy and it lapses.

• Premium load comes off the top, before a dollar reaches the account value.
• Cost of insurance is deducted monthly on the net amount at risk, rising every year with your age.
• Administration and rider charges are deducted monthly regardless of index performance.
• Index credit is applied at segment end, capped or participation-limited, floored at the contract minimum.
• Surrender charges apply if you exit during the surrender period, on top of everything above.

Why isn't an illustration at a flat assumed rate a forecast?

Because it repeats a number the contract doesn't promise, once a year, for forty years. The NAIC defines an illustration as “a presentation or depiction provided to prospective or new policy owners that shows how the policy should perform under specific circumstances set out in the illustration.” Specific circumstances. Not a prediction of them.

The NAIC's Life Insurance Illustrations Model Regulation, Model #582, covers policies with illustrated death benefits above $10,000 and separates a basic illustration — which must show guaranteed and non-guaranteed elements both — from supplemental and in-force versions. Guaranteed elements are set at issue. Non-guaranteed elements are current credits, accumulations and cash values, floored only by the minimums the policy actually guarantees. Caps and participation rates live in that second column.

For index-linked policies the NAIC adopted Actuarial Guideline XLIX in 2015, after regulators concluded the index interest being illustrated was unrealistic and varied between companies more than product features could explain. AG 49 was superseded by AG 49-A for policies sold in 2020 and later, with revisions effective 2023 and 2026 to “tighten illustration limits and enhance consumer-protection disclosures.” The 2023 round is what the industry calls AG 49-B.

Lincoln Financial's own regulatory summary spells out each round: AG 49 “established the first uniform limits on IUL illustrated rates and loan leverage”; the 2020 version stopped charged-for multipliers and bonuses from illustrating more than the charge credited back; the 2023 revision forced volatility-controlled indices to illustrate at or below a benchmark account; and revisions adopted November 2025, effective April 1, 2026, restrict back-tested data and extend standardized performance tables to 25 years. None of that changes how a policy performs. It changes what a carrier may draw — which tells you how much weight the drawing deserves.

So ask for three things before you sign anything indexed. The guaranteed column, run all the way out. The same policy re-run at a materially lower assumed rate. And a straight answer on what happens if the cap is cut. This is the kind of thing worth a second opinion before you sign.

An illustration shows how a policy should perform under circumstances someone chose. Change the circumstances and the picture changes, without anything in the contract changing at all.

What do the three look like with real published numbers?

Meet Ray Whitcomb. He's 40, healthy, and lives in Fort Wayne, Indiana. He wants $40,000 of coverage — a modest number chosen for one reason: it's the single face amount where one publisher, the U.S. Department of Veterans Affairs, prints both a term price and a whole life price, so the shapes compare without a sales illustration in the middle.

Ray's term option is $5.60 a month, $67.20 a year. His whole life option is $88.00 a month, $1,056 a year. The year-one gap is $88.00 − $5.60 = $82.40 a month, or $988.80 a year.

Push it out twenty years, to age 60. Term re-prices every five years, so Ray's cost is four blocks: $5.60 × 60 months = $336.00, then $7.60 × 60 = $456.00, then $11.60 × 60 = $696.00, then $20.00 × 60 = $1,200.00. Add them: $336 + $456 + $696 + $1,200 = $2,688.00. Whole life doesn't move: $88.00 × 240 months = $21,120.00. The difference is $18,432.00.

Where do those extra dollars go? First, the mortality cost of the years after 60 that the permanent contract already pre-funded — the VA's own table says the same $40,000 costs $1,848 a year at 75–79, while Ray's premium stays $1,056 through all of it. Second, acquisition expense and commission, weighted into the early years. Third, the reserve that becomes his cash value.

Indexed universal life doesn't fit in that table, and the reason is the lesson. There's no published IUL rate card, because an IUL doesn't have a price the way these two do. It has a minimum to keep the policy in force, a target premium the carrier uses for commission, and a ceiling before it becomes a modified endowment contract. What you pay is a decision, and the consequence shows up as whether the account can still absorb a rising cost of insurance at 78.

One caveat, and any honest agent will give it to you. VALife is guaranteed acceptance with a two-year wait, so its price carries the cost of insuring people who couldn't qualify elsewhere. A medically underwritten whole life policy prices differently, and so does preferred-class term. The shape of this comparison holds. The exact multiple won't transfer to your quote.

Side by side: what lasts, and what can the insurer change?

Term ends on a date you pick. Whole life ends when you do, as long as the premium is paid. An IUL ends when you do, as long as the account value still covers the monthly charges. That third sentence is a different promise, and the difference is the whole risk profile.

Read the “what the insurer can change” row first. It explains more disappointment than any other. A level term premium is locked for the level period. A participating whole life policy pairs a contractual guarantee with a dividend that is explicitly not guaranteed. An IUL carries current caps, current participation rates and current charges, all adjustable within contract limits.

The death benefit gets the same tax treatment across all three. IRS Publication 525 for 2025 says it plainly: “life insurance proceeds paid to you because of the death of the insured aren't included in your income.” Interest paid on top is taxable in the year received. That parity matters, because it means the tax argument for permanent coverage has to rest on the cash value, not the death benefit.

When is plain 20-year term simply the right answer?

When the need has an end date — and for most working households it does. If the reason you want coverage is a mortgage amortizing to zero, kids who'll be self-supporting, and an income stream that stops mattering once you've retired on your own savings, you're describing a temporary risk. Buy the temporary product.

More bluntly: if the budget forces a choice between $500,000 of term and $50,000 of permanent, take the term. Coverage too small to solve the problem is worse than coverage that expires, because the expiration is scheduled and the shortfall isn't. Size the need first — the DIME method is the straightforward way — then match the term length to when the need ends.

The honest case for permanent coverage is narrow and it isn't about returns. Estate liquidity when the estate is illiquid. A dependent with a disability who'll need support after you're gone. A buy-sell agreement that has to fund whenever the death happens. A specific promise that can't be allowed to expire on a date.

And there's one case where the expensive product is plainly wrong: when it's sold as an investment. If the pitch turns on tax-free retirement income and the death benefit is described as a bonus, it's being sold backwards. Life insurance is priced as insurance. Cash value is what's left after the insurance is paid for, which is why funding level and charge structure matter more than the index ever will. We keep a plain-English glossary if a term here is new.

How does convertibility bridge the two families?

A conversion option lets you exchange a term policy for permanent coverage from the same carrier without new medical underwriting, up to an age or policy year the contract names. It's the most useful feature in the term market, and the reason this decision doesn't have to be final at 35.

In practice: you buy the large term policy now, because that's what the need and the budget support. If your health changes, or a business grows, or a diagnosis arrives, you convert some or all of that face amount at your original health class — not the class your body would earn on the day you convert. The premium reflects your age at conversion, which will be higher. Your insurability isn't re-examined.

The details vary hard by carrier and they aren't decorative: which permanent products qualify, whether partial conversion is allowed, and the deadline. Some contracts allow conversion through age 70; others stop at policy year 10. Two term quotes can look identical on price and be different products. The mechanics are in converting term to permanent life insurance.

This is where a life insurance decision stops being only a life insurance decision. Say Ray takes a commercial loan on a building in Allen County and later refinances into a fresh 20-year note at 55. His coverage now ends five years before the debt does, and replacing it at 60 means buying on the curve above. Caught at the closing table that costs nothing. Caught at 59 it costs plenty. Surrendering a policy or letting a loaned policy lapse can also throw taxable income into a year that may already have a Roth conversion or a capital gain in it — a coordination question, not an insurance question.

Educational content only. This is not tax, legal, or individualized financial advice. Consult your own CPA or attorney before acting. Life insurance here is regulated by the Indiana Department of Insurance, whose Consumer Services Department says it exists “to inform and protect consumers from illegal insurance practices by ensuring insurance companies and licensed producers operating in Indiana comply with State insurance laws.”

Frequently asked questions

Why is whole life so much more expensive than term for the same death benefit?

Because the premium pre-funds the mortality cost of your later decades while you're young. The VA charges $67.20 a year for $40,000 of VGLI term at ages 40–44 and $1,056 a year for $40,000 of VALife whole life at 40 — 15.7 times as much. That same $40,000 of term costs $1,848 a year by ages 75–79, which is where the extra dollars were going.

Is the cash value in an IUL invested in the stock market?

No. Guardian, describing its own indexed universal life product, states that “your money is not actually invested in the market — the index just provides a reference for how much interest the insurance credits to your account.” Crediting is limited by a cap rate, which Guardian says is typically 8%–12%, or a participation rate usually running 50% to over 100%, and floored at a minimum commonly set at 0%.

Does a 0% floor mean an IUL can't lose value?

No. The floor applies to the index credit, not the account value. Premium load, cost of insurance and administration fees are deducted whether the index rose, fell or went sideways. Guardian's own materials note that policy values “can still decline due to cost of insurance charges, fees, loans, or withdrawals.”

Why can't I trust the numbers on an IUL illustration?

Because an illustration depicts assumed conditions rather than projecting your result. The NAIC defines it as showing “how the policy should perform under specific circumstances set out in the illustration,” and separates guaranteed from non-guaranteed elements. Successive versions of Actuarial Guideline 49 — adopted 2015, superseded by AG 49-A for policies sold in 2020 and later, revised effective 2023 and 2026 — exist because regulators found illustrated index credits unrealistic. Ask for the guaranteed column and a run at a lower assumed rate.

What happens if I borrow against a permanent policy?

The carrier lends against your cash value and charges interest; the unpaid balance and accrued interest reduce the death benefit until repaid. Loan proceeds aren't a taxable distribution while the policy stays in force. The risk is a lapse: charges keep coming out of a smaller account, interest keeps accruing, and a lapse with a large outstanding loan can produce taxable income in that year on money spent long before.

Is a life insurance death benefit taxable?

Generally no. IRS Publication 525 for 2025 states that “life insurance proceeds paid to you because of the death of the insured aren't included in your income.” Interest paid on top of the proceeds is taxable in the year received. The treatment is identical for term, whole life and indexed universal life.

What is convertibility and why does it matter?

A conversion option lets you exchange term coverage for a permanent policy from the same carrier without new medical underwriting, at your original health class. The premium reflects your age at conversion, but your insurability isn't re-examined. Terms vary by carrier — which products qualify, whether partial conversion is allowed, and the deadline — so read that provision before comparing two term quotes on price alone.

Sources

1. LIMRA & Life Happens, 2025 Insurance Barometer Study (news release) · 2025; ownership 51%, need-gap 40%, cost overestimated 10-12x
2. U.S. Social Security Administration, Actuarial Life Table (Period Life Table, 2023) · 2023 data, as used in the 2026 Trustees Report
3. U.S. Department of Veterans Affairs, Veterans' Group Life Insurance (VGLI) premium rates · Monthly rates as of July 1, 2025
4. U.S. Department of Veterans Affairs, Veterans Affairs Life Insurance (VALife) · Whole life premium table published on va.gov, retrieved July 2026
5. NAIC, Life Insurance Illustrations (Model #582; Actuarial Guideline 49 / 49-A) · Topic page last updated 1/8/2026
6. Lincoln Financial, Regulatory Roundup: Actuarial Guideline 49 · AG 49 (2015), AG 49-A (2020), revisions 2023 and April 1, 2026
7. Guardian, Indexed Universal Life Insurance · Carrier-published cap, participation rate, floor and policy charge descriptions, retrieved July 2026
8. IRS, Publication 525, Taxable and Nontaxable Income · 2025 edition; Life Insurance Proceeds
9. Indiana Department of Insurance, Consumer Services · Retrieved July 2026