Term vs Whole Life Insurance Calculator
The classic "buy term, invest the difference" comparison — see what the premium gap could actually grow to.
Your policies
Whole life premiums for the same coverage typically run 6-15x the term premium — use real quotes if you have them.
Value of Investing the Premium Difference
$165,984
after 20 years, vs. paying into whole life instead
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The Trade-Off, in One Formula
Whole life insurance folds two very different things into one product: lifelong death-benefit coverage, and a cash-value savings component. Term insurance separates them — you buy pure coverage for a fixed period, and if you want to invest, you invest separately, on your own terms. This calculator quantifies exactly what that separation is worth.
Worked Example
A $500,000, 20-year term policy running $450/year against a comparable whole life policy at $4,500/year, with the $4,050/year difference invested at an assumed 7% annual return:
| Factor | Amount |
|---|---|
| Total term premiums (20 years) | $9,000 |
| Total whole life premiums (20 years) | $90,000 |
| Annual difference invested | $4,050/year |
| Value of invested difference after 20 years | ≈ $165,984 |
That's a projection based on the assumed return, not a guarantee — markets don't move in a straight line. But it illustrates why "buy term, invest the difference" has been standard advice from fee-only financial planners for decades: the gap between what whole life costs and what term costs is large enough that even a modest, disciplined investment return tends to outgrow typical whole life cash value over the same period.
Term + invest the difference
- Far lower cost for the same death benefit
- Full control over how the difference is invested
- Coverage ends when you likely need it least (kids grown, mortgage paid)
Whole life
- Permanent coverage that never expires while premiums are paid
- Cash value grows tax-deferred and can be borrowed against
- Forced savings discipline for those who wouldn't otherwise invest
Whole life is worth a closer look if
- You have a permanent need — estate taxes, a special-needs dependent, or business succession planning
- You've maxed out other tax-advantaged accounts and want another one
- You know you won't otherwise stick to an investing plan without the forced structure
Worth knowing: Whole life cash value typically lags behind total premiums paid for the first decade or more, due to insurer fees and commissions front-loaded into early policy years. Ask for your policy's actual cash-value illustration and compare it directly against this calculator's projected figure at the same year.
Frequently Asked Questions
What is the difference between term and whole life insurance?
Term life insurance covers you for a fixed period (10, 20, or 30 years) and has no cash value — if you outlive the term, coverage simply ends. Whole life insurance covers you permanently and builds a cash value component, but typically costs 6-15 times more than term for the same coverage amount.
What does "buy term and invest the difference" mean?
It's a strategy of buying cheaper term insurance and investing the money you save (versus a whole life premium) in a separate account, on the theory that disciplined investing usually outperforms a whole life policy's cash value growth over time.
Is whole life insurance ever a better choice than term?
It can be, for specific situations: permanent coverage for estate planning or a special-needs dependent, forced-savings discipline for someone who wouldn't otherwise invest, or tax-advantaged access to cash value. For pure income-replacement needs, most financial planners still recommend term.
Does whole life cash value really lag behind investing the difference?
In the first 10-15 years, typically yes — whole life cash value often grows slower than total premiums paid due to insurer fees and commissions built into early policy years, which is why the "buy term, invest the difference" comparison usually favors investing in the earlier years of a policy.
What return rate should I assume for the invested difference?
7% is a commonly used long-run assumption for a diversified stock/bond portfolio, though actual returns vary year to year and aren't guaranteed — try a more conservative 5-6% to see how sensitive the comparison is to your assumption.
Does this calculator tell me which one to buy?
No — it shows you the financial trade-off so you can decide based on your own priorities. If you need permanent coverage or the forced-savings discipline of whole life, the numbers here are only one part of that decision.
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