Insurance is one of the only financial products where the salesperson's incentive and your best interest can point in opposite directions. The person selling you a policy usually earns a commission on it, often a large one, front-loaded into the first year or two. That doesn't mean every policy you're offered is bad. It means you need a clear framework for telling the difference between coverage that genuinely protects your finances and coverage that mostly protects someone else's paycheck.
The one-sentence rule for what insurance is for
Insurance exists to protect you against losses so large they'd be financially catastrophic, not to protect you against small, predictable expenses you could cover yourself. If you can comfortably absorb a loss out of savings, self-insure it. If a loss would wipe out your savings, derail your income, or bankrupt you, that's what insurance is for.
This single filter eliminates a surprising amount of what's marketed to you. A $200 phone screen or a $150 vet visit is annoying, not catastrophic. Insuring against it mostly pays for the insurer's overhead and profit margin, not your protection. A house fire or a lawsuit after a car accident is catastrophic, and that's exactly the kind of risk worth transferring to an insurer.
The essential coverage: what to actually carry
1. Health insurance
Medical debt is one of the most common causes of financial ruin, and a single serious illness or injury can run into six figures without coverage. If you have access to an employer plan, enroll unless you have a specific reason not to. If you're buying on your own, prioritize a plan with a maximum out-of-pocket limit you could actually pay in a true worst case, even if that means a higher monthly premium.
2. Auto liability insurance
If you drive, liability coverage protects you against the cost of injuring someone else or damaging their property, costs that can easily exceed your entire net worth in a serious accident. Most places require a legal minimum, but that minimum is often far too low to protect you; a common recommendation is liability limits of at least $100,000 per person / $300,000 per accident, higher if your net worth is significant.
3. Homeowners or renters insurance
Renters insurance is inexpensive (often $10-20 a month) and covers your belongings plus liability if someone is injured in your home. Homeowners insurance is usually required by your mortgage lender and protects the asset that's likely your largest one. Skipping either to save a small monthly premium is a bad trade against a large tail risk.
4. Disability income insurance
This is the coverage most people forget and almost no one is offered aggressively, because it's rarely a big commission product. It replaces a portion of your income if you become unable to work due to illness or injury. Statistically, over a full career, you're substantially more likely to experience a disability that stops you from working than to die prematurely, yet far more people carry life insurance than disability coverage. If your employer offers it, check what percentage of income it replaces; many employer plans only cover 50-60%, and a supplemental individual policy can fill the gap.
5. Term life insurance: only if someone depends on your income
If a spouse, children, or another dependent would struggle financially without your income, term life insurance is the right tool: it pays a fixed death benefit if you die within a set term (10, 20, or 30 years), for a relatively low premium. A healthy 30-year-old can often buy $500,000 of 20-year term coverage for well under $30 a month.
How much term life to buy
A common starting estimate is 10-12 times your annual income, adjusted for how many years of support your dependents would need and how much you already have saved or invested. It's only a rough starting point, and the right number depends on your debts, your dependents' ages, and your existing assets.
What you're usually sold instead
Whole life and other permanent life insurance. These combine a life insurance payout with a savings or investment component, and they're marketed heavily because the commissions are large, often 50-100% of the first year's premium. The insurance portion is typically far more expensive than an equivalent term policy, and the investment portion usually grows slower than a low-cost index fund would, with less flexibility and steep surrender charges if you cancel early. For the large majority of buyers, "buy term and invest the difference" produces more coverage and more wealth than a whole life policy would.
Extended warranties. Sold at the register on electronics, appliances, and cars, these are among the highest-margin products retailers offer, which is exactly why you're asked about one at every checkout. The failure rates they insure against are usually low, and the repair costs are usually affordable out of pocket or already covered by a manufacturer warranty.
Credit life and credit disability insurance. Sold alongside a loan or credit card, these pay off your balance if you die or become disabled. They're typically far more expensive per dollar of coverage than a standalone term life or disability policy, largely because they're sold with minimal underwriting and comparison shopping.
Supplemental "just in case" policies (cancer insurance, accident insurance, hospital indemnity plans). These pay out for a narrow, specific event, and their premiums are priced with a healthy margin for the insurer. If you already have solid health insurance and an emergency fund, these add cost without meaningfully changing your worst-case outcome. A well-funded emergency fund covers most of the same gap far more flexibly.
A quick comparison
| Type | Purpose | Usually worth it? |
|---|---|---|
| Health insurance | Covers medical costs | Yes — essential |
| Auto liability | Covers damage/injury you cause | Yes — essential |
| Renters/homeowners | Covers your home and belongings | Yes — essential |
| Disability income | Replaces income if you can't work | Yes — commonly underused |
| Term life | Replaces income for dependents | Yes, if you have dependents |
| Whole/permanent life | Life insurance + investment bundle | Usually no — term is cheaper, invest the rest |
| Extended warranties | Covers product breakage | Usually no — self-insure |
| Credit life/disability | Pays off a specific loan | Usually no — a standalone policy is cheaper |
| Cancer/accident/hospital indemnity | Covers a narrow event | Usually no, if health insurance and an emergency fund already exist |
How to shop without getting oversold
- Start from the essential list above, not from what an agent recommends. If a recommended product isn't on the essential list, ask specifically what catastrophic risk it protects against that your existing coverage and emergency fund don't already cover.
- Compare term life quotes from a few independent sources rather than accepting the first policy offered, since premiums for the same coverage can vary meaningfully between insurers.
- Raise your deductibles on auto and home insurance if you have a solid emergency fund. A higher deductible lowers your premium in exchange for covering more of a small loss yourself, exactly the self-insurance principle from the top of this article.
- Re-shop every few years. Loyalty rarely gets rewarded with lower premiums; insurers frequently offer better rates to new customers than to renewing ones.
Key takeaway
Insure against losses that would be financially catastrophic: major illness, being sued after an accident, losing your home, or losing your income. Self-insure the small, predictable stuff with your emergency fund instead of paying a premium (and someone else's commission) for it.
Pair it with an emergency fund
Insurance and an emergency fund work together: coverage handles the catastrophic risks, while your fund handles the deductibles and smaller gaps. If you haven't built one yet, see how to build a 6-month emergency fund on any income.
Frequently asked questions
Do I need life insurance if I don't have kids or a spouse?
Usually not, unless someone else depends on your income (a partner, an aging parent, or a business partner, for example). Life insurance replaces lost income for people who rely on you financially. If no one would be financially harmed by your death, there's typically nothing to insure yet.
Is whole life insurance ever a good idea?
For most people, no. A low-cost term policy plus investing the difference in a retirement account almost always produces more coverage and more wealth. Whole life can occasionally make sense for specific estate-planning or business situations, but those are edge cases, not a starting recommendation.
Which insurance product do most people skip but shouldn't?
Disability income insurance. It protects your ability to earn an income at all, which is arguably your single biggest financial asset, yet far fewer people carry it than carry life insurance.