Life Insurance 101: What It Is, How It Works, and How Much You Actually Need
Life insurance doesn't have to be complicated. Here's a plain-English breakdown of the types, the math, and the questions worth asking before you buy.
Life insurance is one of those things most people know they should have — and fewer people actually understand. After eight years of helping Colorado families and small-business owners find the right coverage, I've answered a lot of the same questions. This guide pulls those answers together in one place.
What life insurance actually does
At its core, life insurance is a contract: you pay a premium, and if you die while the policy is in force, the insurance company pays a lump sum — called the death benefit — to whoever you've named as your beneficiary.
That money can be used for anything. Most families use it to:
- Replace the income the deceased was earning
- Pay off a mortgage or other debts
- Cover final expenses (funerals average $8,000–$12,000)
- Fund a child's education
- Keep a small business running during a transition
The death benefit passes to your beneficiary income-tax-free in almost all cases. That's one of the features that makes life insurance uniquely powerful as a financial tool.
The two main types: term vs. permanent
Every life insurance policy falls into one of two broad categories.
Term life insurance
Term life covers you for a set period — typically 10, 20, or 30 years. If you die during that term, your beneficiary receives the death benefit. If you outlive the term, the policy expires and no benefit is paid.
Why people choose term:
- It's the most affordable option, especially when you're young and healthy
- It matches coverage to the years when your family is most financially vulnerable (raising kids, paying a mortgage)
- A healthy 35-year-old can often get $500,000 of 20-year coverage for under $30/month
The trade-off: Once the term ends, you either go without coverage or buy a new policy at older (and usually higher-risk) rates.
Permanent life insurance
Permanent policies — whole life, universal life, indexed universal life — stay in force for your entire life as long as premiums are paid. They also build cash value over time, which you can borrow against or withdraw.
Why people choose permanent:
- Lifelong coverage with no expiration
- The cash value component grows tax-deferred
- Can be a useful estate-planning tool
- Final expense policies (a simpler form of whole life) are popular for seniors who want to cover burial costs without a medical exam
The trade-off: Premiums are significantly higher than term — sometimes 5–10× more for the same death benefit. The cash value growth is also slower than most people expect in the early years.
"The best policy is the one you can afford to keep. A $1 million term policy that lapses because the premium gets tight does less for your family than a $250,000 whole life policy you maintain for 30 years."
How much coverage do you need?
There's no single right answer, but here are the frameworks I walk clients through:
The DIME method
Add up:
- Debt (mortgage, car loans, credit cards, student loans)
- Income replacement (annual income × years until retirement)
- Mortgage payoff (if not already counted in debt)
- Education (estimated cost of college for each child)
This gives you a solid floor. Most financial planners suggest 10–12× your annual income as a starting point.
A simpler rule of thumb
If you have dependents and a mortgage, $500,000 to $1 million in term coverage is a reasonable starting range for most working adults. We refine from there based on your actual numbers.
When you might need less
- Your children are grown and financially independent
- Your mortgage is paid off
- You have substantial savings or investments that could support a surviving spouse
- You're primarily buying to cover final expenses
What affects your premium
Insurers price risk. The factors that matter most:
Age — The younger you are when you apply, the lower your rate. Locking in coverage in your 30s or early 40s is almost always cheaper than waiting.
Health — Most policies require a medical exam or health questionnaire. Conditions like diabetes, heart disease, or a history of cancer will raise your rate or limit your options. (There are no-exam options, but they cost more.)
Gender — Women statistically live longer, so they typically pay lower premiums than men of the same age and health.
Tobacco use — Smokers pay roughly 2–3× more than non-smokers. Most insurers require you to be tobacco-free for 12 months before qualifying for non-smoker rates.
Coverage amount and term length — More coverage and longer terms mean higher premiums.
Occupation and hobbies — Certain jobs (commercial fishing, logging, roofing) and hobbies (skydiving, scuba diving) can raise rates.
Common mistakes I see
Waiting too long. Every year you delay, premiums go up and the chance of a health issue that complicates underwriting increases. The best time to buy was five years ago; the second-best time is now.
Underinsuring to save on premiums. A $100,000 policy feels like a lot until you realize it covers about two years of a median household income. Buy what your family actually needs.
Naming the wrong beneficiary. Minor children can't directly receive a death benefit — the court will appoint a guardian to manage the funds, which is slow and expensive. Consider a trust or naming a trusted adult instead.
Forgetting to update beneficiaries. After a divorce, remarriage, or the death of a named beneficiary, your policy needs to be updated. I've seen death benefits go to ex-spouses because no one updated the paperwork.
Assuming group life through work is enough. Employer-provided life insurance is usually 1–2× your salary, and it disappears when you leave the job. It's a supplement, not a plan.
A note on final expense insurance
If you're over 60 and primarily concerned about covering burial costs and not leaving bills for your family, a final expense policy (also called burial insurance) may be the right fit. These are smaller whole life policies — typically $5,000 to $25,000 — with simplified underwriting. No medical exam, just a few health questions. Premiums are fixed for life.
They're not the right tool for income replacement, but for seniors on a fixed income who want peace of mind, they're often a practical, affordable option.
Next steps
If you're not sure where to start, the best move is a short conversation. I'll ask about your family situation, your income, your debts, and what you're trying to protect — and we'll figure out what makes sense together.
There's no pressure and no one-size-fits-all answer. Life insurance is personal, and getting it right matters.
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Written by
Laura Stock
Licensed insurance agent serving Colorado and 39 additional states since 2018. Specializing in health, life, Medicare, and dental coverage.
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