For the overwhelming majority of households the answer is term, and the cost difference is not marginal. Understanding why it is so large tells you the few cases where permanent cover is genuinely the right product.
#What each product actually is
Term life is pure insurance. You pay a premium, and if you die within the term the insurer pays the death benefit. If you outlive it, the policy ends and nothing is paid. It is the same structure as home or car insurance.
Whole life bundles insurance with a savings component. Part of the premium buys the death benefit, part funds a cash value account that grows at a rate set by the insurer, and a substantial part funds commission and administration — particularly in the early years.
#The cost gap
For a healthy 35-year-old buying $1,000,000 of cover, level term for twenty years typically costs a small fraction of what whole life costs for the same death benefit. The multiple is usually somewhere between eight and fifteen times, depending on carrier and health class.
Over twenty years that difference is a very large amount of money. The question is what the extra buys.
#Where the extra premium goes
Three places, in descending order for most policies:
Commission. Whole life pays the selling agent a commission commonly equal to a large share of the first year's premium, which is why it is sold so enthusiastically. Term pays a fraction of that. This is not a conspiracy theory; it is disclosed in the policy illustration if you know where to look.
Cash value. Grows at a guaranteed minimum, often in the low single digits, plus non-guaranteed dividends on participating policies. It typically takes ten to fifteen years for cash value to exceed premiums paid.
Permanent death benefit. The policy does not expire, which has genuine value in specific estate planning contexts.
#The "buy term and invest the difference" test
The standard comparison is to buy term and invest the premium difference. Over twenty years, a broad market portfolio has historically outperformed whole life cash value growth by a wide margin, even after tax.
Two honest caveats. First, whole life cash value grows tax-deferred and can often be accessed via policy loans without triggering income tax, which is a real advantage for high earners who have exhausted other tax-advantaged space. Second, "invest the difference" requires actual discipline, and many people do not. A forced savings vehicle you will not abandon beats an optimal one you will.
Neither caveat justifies whole life as a substitute for adequate cover. The most damaging outcome is buying a $250,000 whole life policy because it was affordable, when the household needed $1,200,000 — which is exactly what the life insurance calculator is designed to prevent.
#When permanent cover is genuinely right
Estate tax liquidity. If your estate will face a tax bill and the assets are illiquid — a business, farmland, property — permanent insurance funds the liability without a forced sale.
A permanently dependent beneficiary. A child with a disability who will need support for their whole life cannot be covered by a policy that expires when you are seventy.
Business succession. Buy-sell agreements between partners need guaranteed funding whenever the death occurs, not only within a twenty-year window.
Genuinely maxed-out tax-advantaged space. For high earners who have filled every retirement account, the tax-deferred growth becomes a legitimate consideration rather than a sales point.
Note what these have in common: a need that is certain to arise eventually, rather than a risk confined to a window of years.
#The argument to be sceptical about
"Term is wasted money if you outlive it." This is the same argument as calling home insurance wasted because your house did not burn down. Insurance exists to transfer a risk you cannot absorb. Not needing it is the good outcome.
#A practical sequence
- Calculate the cover your family actually needs
- Buy that full amount as level term, matched to your longest obligation
- Fill your tax-advantaged retirement accounts
- Only then, if there is a specific permanent need, consider permanent cover
Doing it in that order means you are never underinsured because the product was expensive.
Frequently asked questions
Can I convert term to whole life later?
Many term policies include a conversion rider allowing conversion to the insurer's permanent product without new medical underwriting, usually up to a specified age. This is valuable if your health deteriorates and a permanent need emerges. Check whether the rider exists before you buy.
Is the cash value paid out on death?
With most traditional whole life policies, no — beneficiaries receive the death benefit and the insurer retains the cash value. Some policies offer a rider paying both, at a higher premium. Read the illustration carefully.
What happens when my term policy expires?
Cover simply ends. Most policies allow annual renewal at sharply increasing rates, which is rarely worth taking. The plan should be that by expiry your mortgage is repaid, your children are independent and your savings cover what remains.