Home / Life insurance

Life Insurance: How Much You Need and Which Type to Buy

Written & reviewed in-house · Last updated August 5, 2026

Life insurance is one of the few financial products you buy hoping you'll never use it. Because the payout can arrive at the worst possible moment for the people you love, getting the basics right matters more than shopping for the lowest price. This guide walks through who actually needs coverage, the two main types, how much to buy, what drives your premium, and the mistakes that quietly cost families the most.

Who actually needs life insurance (and who may not)

The core question is simple: if you died tomorrow, would anyone suffer financially? If the answer is yes, you likely need coverage. Life insurance replaces the income, unpaid labor, or debt-coverage that disappears when you do.

You probably need it if you:

• Have a spouse, partner, or children who depend on your income
• Carry a mortgage or co-signed debt that would fall on someone else
• Are a stay-at-home parent (the childcare and household work you provide has real replacement cost)
• Own a business with partners or loans tied to your involvement
• Support aging parents or a dependent with special needs

You may not need much (or any) if you're single with no dependents and no shared debt, or you're financially independent and could self-fund any final expenses. Two gray areas: young single adults sometimes buy a small policy young to lock in low rates before health issues appear, and retirees with grown children and no debt often find their need has shrunk or disappeared.

Term vs. whole/permanent life

Almost every decision comes down to these two families of coverage.

Term life

Term life covers you for a set period — typically 10, 20, or 30 years. If you die during the term, your beneficiaries receive the death benefit. If the term ends and you're still living, coverage simply expires. There's no cash value and no investment component, which is exactly why it's inexpensive. A healthy person in their 30s might pay in the range of $20–$40 a month for several hundred thousand dollars of coverage, though your actual quote depends on your profile.

Whole / permanent life

Permanent life (whole life, universal life, and variants) is designed to last your entire life and includes a cash value account that grows over time and can be borrowed against. Because it never expires and builds value, it commonly costs 5 to 15 times more than a comparable term policy for the same death benefit.

• Cost: Term is cheap; permanent is expensive.
• Duration: Term lasts a fixed number of years; permanent is lifelong.
• Cash value: Term has none; permanent accumulates value you can access.

For most families, term life covers the years when the financial stakes are highest — while there's a mortgage to pay and kids to raise — at a fraction of the cost. Permanent life tends to make sense for lifelong dependents, estate-planning needs, or specific tax situations, ideally reviewed with a fee-only advisor rather than bought on a sales pitch.

How much coverage do you need?

Two common approaches help you land on a number.

Income replacement

A quick rule of thumb is 10 to 15 times your annual income. Someone earning $70,000 might target $700,000 to roughly $1 million. It's fast, but it ignores your specific debts and goals.

The DIME method

DIME is more precise because it adds up what actually needs to be covered:

• D — Debt: Total non-mortgage debt (credit cards, car loans, student loans) plus estimated final expenses.
• I — Income: Your annual income multiplied by the number of years your family would need support (often until the youngest child is independent).
• M — Mortgage: The remaining balance so your family can stay in the home.
• E — Education: Projected college or future schooling costs for each child.

Add those four together, then subtract savings and any existing coverage. The result is a realistic target rather than a generic multiple.

Choosing a term length

Match the term to how long your dependents will actually rely on you. A useful principle: pick a length that carries you to the point where your major obligations are paid off. If your mortgage has 25 years left and your kids are toddlers, a 30-year term keeps you covered until both the house is paid and the children are grown. If your primary concern is a 15-year mortgage and teenagers who'll soon be independent, a 20-year term may be plenty. Longer terms cost more per month, so buy the length you need — not the longest one available.

What affects your premium

Insurers price policies on the statistical likelihood of paying a claim. The biggest levers:

• Age: The single largest factor. Every year you wait, rates rise — which is why buying sooner is usually cheaper.
• Health: Blood pressure, cholesterol, weight, chronic conditions, and family medical history all factor in.
• Smoking / nicotine use: Smokers frequently pay two to three times what non-smokers pay for identical coverage.
• Coverage amount: A larger death benefit means a larger premium.
• Term length: Longer terms cost more because the insurer is on the hook for more years.
• Other factors: Risky occupations or hobbies (aviation, scuba, racing) and, in some cases, your driving record.

Underwriting: the medical exam and no-exam options

Underwriting is how the insurer assesses your risk before setting a final rate. Traditional fully underwritten policies include a short medical exam — usually a paramedical professional measures height, weight, and blood pressure and collects blood and urine samples, often at your home or office. This process can take several weeks but typically produces the lowest rates for healthy applicants.

No-exam (accelerated underwriting) policies skip the needle and rely on your application answers plus database checks (prescription history, motor vehicle records, and similar). They're faster — sometimes approved in days — and convenient, but they often cost more or cap the coverage amount, since the insurer is accepting more uncertainty. If you're healthy and want the best price, the exam usually pays off. If you value speed, have a needle aversion, or need modest coverage quickly, no-exam can be worth the premium.

Answer every health question honestly. Material misrepresentations discovered later can give the insurer grounds to deny a claim.

Common riders worth knowing

Riders are optional add-ons that customize a policy. A few of the most useful:

• Accelerated death benefit: Lets you access part of your own death benefit while living if you're diagnosed with a qualifying terminal illness. Frequently included at no extra cost.
• Waiver of premium: Waives your premiums if you become totally disabled and can't work, keeping the policy in force.
• Child rider: Adds a small amount of coverage for your children under one policy, and often converts to their own coverage later regardless of their health.

Riders add cost, so add the ones that address a real risk in your situation rather than loading up on every option offered.

Common mistakes to avoid

• Buying too little. A policy equal to one year's salary feels responsible but rarely covers a mortgage, years of lost income, and college. Run the DIME numbers instead of guessing.
• Waiting too long. Rates climb every year, and a new diagnosis can make coverage far more expensive — or unavailable. The cheapest time to buy is almost always now.
• Naming the wrong beneficiary — or forgetting to update it. Naming a minor child directly can freeze the payout in legal proceedings; an ex-spouse left on an old policy will legally collect over your current family. Review beneficiaries after every marriage, divorce, or birth.
• Letting the policy lapse. A missed premium can cancel coverage right when you need it. Use autopay, and know that most policies have a grace period (commonly around 30 days) before they lapse.
• Treating life insurance mainly as an investment. For most people, buying affordable term and investing the difference builds more wealth than an expensive permanent policy purchased for its cash value alone.

Life insurance works best when it's matched to your real obligations: enough coverage, the right type, an appropriate term, and an up-to-date beneficiary. Get those four right and revisit them after every major life change, and the policy will do exactly what you bought it to do.