Walk into the life insurance debate and you'll hear two camps shouting past each other. Agents love selling whole life (the commissions are far higher). Personal finance writers almost universally say buy term and invest the difference. Let's look at the actual numbers so you can decide for yourself.
In this guide
The core difference
| Term Life | Whole Life | |
|---|---|---|
| What it is | Pure protection for a set period (10, 20, 30 years) | Lifetime cover + a cash-value savings component |
| Typical cost | $25–$50/month for $500k (healthy 30-year-old) | $400–$600/month for the same cover |
| Duration | Ends after the term | Lasts your whole life |
| Cash value | None | Builds slowly; accessible via loans/withdrawals |
| Complexity | Simple | Complex fees and rules |
Real cost comparison
Take a healthy 35-year-old non-smoker wanting $500,000 of cover. A 20-year term policy costs roughly $30–$45/month. A whole life policy for the same death benefit costs roughly $450–$550/month — about 12 times more.
Over 20 years, that's about $9,600 for term vs. $120,000 for whole life. The "invest the difference" argument says: buy the term policy, invest the $470/month difference in a basic index fund, and you'll almost certainly end up with far more than the whole life policy's cash value — with full liquidity the whole time.
When term life is the right choice
Term is right for the large majority of families:
- You need income replacement while kids are young or a mortgage exists
- You want the maximum cover for minimum cost
- Your need is temporary — it shrinks as kids grow and debts fall
- You prefer to invest separately with full control
When whole life makes sense
Whole life isn't always a bad product — it fits narrow situations:
- Lifetime dependents — a special-needs child who will always need support
- Estate planning — very wealthy families using it for estate liquidity and tax planning
- You've maxed everything else — all retirement accounts full and you want another tax-advantaged bucket
If none of these describe you, term is almost certainly the better buy.
How much cover do you need?
A common rule of thumb is 10–12× your annual income, plus debts, minus existing savings. For more precision, use the DIME method:
- Debt — everything except the mortgage
- Income — 10 years of income replacement
- Mortgage — remaining balance
- Education — future costs for kids
Example: $15k debt + $600k income (10 × $60k) + $250k mortgage + $100k education = roughly $965k — round to a $1M policy.
Frequently asked questions
What happens when my term policy expires?
You can usually renew annually at much higher rates, convert to a permanent policy, or — most commonly — simply let it lapse because the kids are grown and the mortgage is paid. That's the plan working.
Is the medical exam required?
Traditional fully-underwritten policies offer the best rates and require an exam. No-exam policies exist but cost 20–40% more. If you're healthy, the exam is worth it.
Can I have both term and whole life?
Yes — some people layer a large term policy for income replacement with a small whole life policy for final expenses. Just make sure the term portion is doing the heavy lifting.