Lesson 14 of 16 · Level 4: Expert
Insurance: What You Need, How Much Coverage and What to Skip
- ⏱ 11 min read
- ❓ 4 review questions
- ✍️ Exercise with solution
In this lesson
- The vocabulary of insurance: premium, deductible, copay, coinsurance, out-of-pocket maximum and exclusions.
- Which policies you need at each stage of life, and which ones you can skip.
- How to calculate how much life insurance you need with a clear method.
- How term life compares with whole life or "return of premium" policies, with numbers.
- What to check before you sign any policy.
A solid financial plan can be wiped out by a single event: a hospital stay without good coverage, a car accident where you injure someone, or the death of the person who supports the family. Your emergency fund (lesson 3) handles medium-sized surprises; insurance handles the huge ones no savings account could absorb. The key is to insure what would ruin you, and not to waste money insuring what would only annoy you.
The vocabulary of insurance
| Term | What it means |
|---|---|
| Premium | What you pay for the policy, monthly or yearly |
| Deductible | What you pay first before the insurer starts paying |
| Copay | A flat fee for a service, like $30 for a doctor visit |
| Coinsurance | Your percentage of costs after the deductible, such as 20% |
| Out-of-pocket maximum | The most you'll pay for covered in-network care in a plan year; after that, the plan pays 100% |
| Coverage limit | The most the insurer will pay, common in auto, home and life policies |
| Exclusions | What the policy doesn't cover. Read them before you buy |
| Waiting or elimination period | Time before certain benefits start, common in disability insurance |
Example: your health plan has a $2,000 deductible, 20% coinsurance and a $6,500 out-of-pocket maximum. A hospital stay costs $20,000. You pay $2,000 + 20% of the remaining $18,000 ($3,600) = $5,600; the plan pays $14,400. If the bill were $60,000, the same math would give $13,600, but the out-of-pocket maximum caps your share at $6,500. That cap is what protects you from financial disaster, so always find it.
If you have a solid emergency fund, choosing a higher deductible often lowers your premium noticeably. You cover the small stuff; the policy protects you from the big stuff, which is its real job. A qualifying high-deductible health plan (for 2026, a deductible of at least $1,700 for self-only or $3,400 for family coverage) also lets you contribute to an HSA, which you saw in lesson 8.
1. Surgery costs $10,000. Your plan has a $1,000 deductible, 20% coinsurance and a $5,000 out-of-pocket maximum. How much do you pay?
$1,000 deductible plus 20% of the remaining $9,000 ($1,800) = $2,800. That's below the $5,000 cap, so the cap doesn't kick in.
Which insurance you need (and which you don't)
Health
Everyone. Through an employer, the ACA marketplace at HealthCare.gov, Medicaid or Medicare.
Priority: essential. Medical bills can be the biggest financial shock of all.Term life
Anyone whose income supports kids, a partner or aging parents, or who shares a mortgage.
Priority: very high with dependents; unnecessary without them.Long-term disability
Anyone who lives on their paycheck, especially freelancers with no employer coverage.
Priority: high. Your future earnings are likely your biggest asset.Auto and home liability
Every driver (required by almost every state), homeowners and renters. Add an umbrella policy as your net worth grows.
Priority: very high. Injuring someone can cost far more than your car.| Coverage | Who needs it | Priority |
|---|---|---|
| Auto liability (beyond your state's minimum) | Every driver; state minimums are often too low to cover a serious accident | Very high |
| Collision and comprehensive | Anyone who couldn't replace their car from savings, or who has a car loan or lease | Medium |
| Homeowners or renters | Homeowners (often required by the lender) and renters with belongings worth protecting; both include liability | High |
| Flood or earthquake | People in risk areas; standard homeowners policies generally exclude them | Depends on where you live |
| Extended warranties on electronics and appliances | Almost no one: most repairs fit in an emergency fund | Low |
| Phone insurance, credit card "payment protection," flight insurance | Rarely worth it | Low |
The underlying rule: insure what would ruin you and pay for what would only annoy you. A cracked phone screen hurts; a lawsuit after a car crash or a cancer diagnosis without coverage can erase years of savings.
How much life insurance do you need?
Life insurance replaces your income for the people who depend on it. A simple method: add up what your family would need, then subtract what's already there.
| Item | Example: Danielle, 35, Kansas City, two kids |
|---|---|
| + Yearly family expenses she covers × years until the kids are independent | $45,000 × 15 = $675,000 |
| + Debts to pay off (mortgage, car loan) | $210,000 |
| + Goals to protect (college) | $80,000 |
| + Final expenses | $15,000 |
| − Savings and investments available | $55,000 |
| − Group life insurance through her employer | $90,000 |
| Coverage needed | $835,000 |
A quick rule of thumb is 10 to 12 times your annual income, but the detailed calculation is better. Don't count your employer's group policy as permanent: it usually ends when you leave the job, so many people buy their own term policy for most of the need.
2. Andre, 28, is single and nobody depends on his income. Does he need life insurance?
Life insurance protects people who depend on your income. Without dependents, the priority is protecting yourself: health and disability.
Term life vs. permanent or "return of premium"
Term life covers you for a set period (10, 20 or 30 years) and pays nothing if you outlive it. Permanent policies (whole life, universal life) and return-of-premium term policies cost much more because they include a savings or refund component. Compare, for the same $500,000 of coverage over 20 years (illustrative premiums):
- Premiums paid in 20 years
- $7,200
- Invested
- $80/month at 5% a year
- After 20 years
- ≈ $32,464 in your account
- Premiums paid in 20 years
- $26,400
- Refunded at the end
- $26,400, if you keep every payment
- After 20 years
- $26,400, worth less after 20 years of inflation
=FV((1+5%)^(1/12)-1, 240, -80) → about $32,464In this example, buying term and investing the $80 difference leaves about $32,464, versus $26,400 refunded, which has also lost buying power to inflation (lesson 7). Permanent life insurance has legitimate uses, such as certain estate-planning needs or a lifelong dependent, but for most families term coverage plus investing is cheaper and more flexible. Decide with the numbers in front of you, not because "you get your money back."
- Read the exclusions and waiting periods: that's where the "not covered" lives.
- Answer health and lifestyle questions honestly (for example, whether you smoke). Misrepresentation can void a claim right when your family needs it.
- Name and update your beneficiaries after marriage, divorce or a new child.
- Confirm the insurer is licensed in your state (your state insurance department has a lookup tool) and check its financial strength rating.
- For disability insurance, compare the definition of disability ("own occupation" vs. "any occupation"), the elimination period and the benefit period.
3. For a driver, which coverage is usually the highest priority?
The damage you can cause to other people has no natural ceiling and can be enormous. Replacing your own car, by contrast, has a known cost.
4. A hospital bill comes to $60,000. Your plan: $2,000 deductible, 20% coinsurance, $6,500 out-of-pocket maximum. What do you owe for covered in-network care?
The formula gives $2,000 + 20% × $58,000 = $13,600, but the out-of-pocket maximum caps your share at $6,500 for the plan year.
Practice exercise: your insurance map
- List every policy you have (including through work and through loans), with its coverage amount and yearly premium.
- Mark the risks that would ruin you and check whether each one is covered.
- If someone depends on you, calculate your life insurance need with the table above.
- Find policies you pay for but don't need, and add up the yearly savings from canceling them.
See solution
Has: employer health plan, employer group life (1× salary = $90,000),
extended TV warranty ($8/month = $96/year),
phone insurance ($15/month = $180/year)
Missing: individual term life for the $835,000 gap from the table
(about $925,000 = $835,000 + $90,000 if she doesn't want to rely
on the group policy, which ends if she changes jobs),
long-term disability, higher auto liability limits
Extra: warranty + phone insurance = $276/year
→ nearly covers a $30/month ($360/year) term life premiumReorganizing insurance doesn't always mean spending more: often you stop paying for policies that don't protect against anything serious and use that money to plug the gaps that matter.
Summary
- Premium, deductible, coinsurance, out-of-pocket maximum and exclusions define what a policy really covers.
- Insure what would ruin you (health, life with dependents, disability, liability) and self-insure the small stuff.
- Size life insurance from your dependents' needs minus what they already have; 10–12× income is only a rough check.
- Compare permanent or return-of-premium policies with term coverage plus investing the difference.
- Read exclusions, answer honestly and keep beneficiaries current.
Next lesson: Real Estate Investing: Rental Property Returns, Mortgages and REITs. You'll analyze a rental property like a pro, see how leverage cuts both ways and compare it with REITs.
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