How Does Life Insurance Work?
Life insurance pays a tax free lump sum to the people you choose if you die during the policy term. Here is how it works, in plain English, subject to eligibility and policy terms.
Get my quoteWhat Life Insurance Is
Life insurance is a simple promise. You pay a monthly amount, called the premium, and if you die while the policy is running, the insurer pays a cash lump sum to the people you choose. They can use it however they need, such as paying off the mortgage, covering bills or replacing your income.
It is built for one job: making sure the people who depend on you are not left struggling with money if you are gone. In 2024, UK insurers paid out billions in life insurance claims to families.
How It Works
You set up the policy around your situation, then it pays out if you die during the term.
- You choose your cover amount and term. The cover amount is the lump sum that would be paid. The term is how many years you want the cover to last.
- You choose the type of cover. Level term keeps the payout the same for the whole term. Decreasing term lowers the payout over time and is often used with a repayment mortgage. Whole of life covers you for life and costs more.
- You answer health and lifestyle questions. This is called underwriting, where the insurer works out the risk and your price. Answering fully and honestly is the most important thing you can do, because not doing so can void a claim.
- You pay a monthly premium. This keeps the policy active. Premiums can be guaranteed, meaning they stay the same, or reviewable, meaning they can change over time.
- If you die during the term, your family claims. They contact the insurer, send a death certificate and a few documents, and the insurer checks the claim.
- The insurer pays a tax free lump sum. The money goes to your beneficiaries, the people set to receive it. Once it is paid, the policy ends.
Who May Need It
Life insurance suits anyone whose death would leave others short of money. The clearest cases are people with a mortgage, a partner, children, or anyone who depends on their income. It is also worth thinking about if you have debts that would pass to others, or if you want to leave something behind to cover funeral costs or a tax bill.
It may matter less if you have no dependants and enough savings to cover your debts and final costs. If your main worry is being unable to work rather than dying, income protection or critical illness cover may fit better. For impartial guidance you can use MoneyHelper, the government backed service.
What It Usually Covers
Life insurance pays out for almost any cause of death during the term, whether through illness or an accident. Most term policies also include terminal illness cover, which pays out early if you are diagnosed with an illness that cannot be cured and you are expected to live less than 12 months.1
The payout is normally tax free. It can count towards inheritance tax, charged at 40% on anything in your estate above £325,000, unless the policy is written in trust.2 Writing it in trust is a simple step, usually free, that sends the money straight to your family. It keeps the payout outside your estate and means your family does not have to wait for probate, the legal process of sorting out an estate, which can take many months.
The support is real. In 2024, UK insurers paid £4.03 billion in term life insurance claims, with an average payout of £79,703.1
What It May Not Cover
Life insurance is broad, but it has clear limits.
- Death after the term ends. Term cover only pays out if you die during the term. If you outlive it, the cover simply ends and there is no payout.
- Suicide in the first year. Most policies do not pay out for suicide during the first 12 months of cover.
- Non disclosure. If you do not give full and honest answers when you apply, a claim can be reduced or refused. This is the most common reason a claim is declined.
- Unpaid premiums. If you stop paying, the cover usually stops too. Most term policies build up no cash value, so there is nothing to get back.
- Listed exclusions. Some policies exclude certain high risk activities or rare situations. These are set out in the policy documents.
How Much Cover You May Need
A good starting point is enough to clear the mortgage and any other debts, plus an amount to support the people who rely on you and to cover final costs such as a funeral, which now averages over £4,000.3 A common rule of thumb is around five to ten times your yearly salary, but your own number depends on your debts, your family and how long they would need support.
Match the term to the years that matter most, such as until the mortgage is repaid or the children are grown. Many people set the cover amount to match their mortgage, then add a bit more for living costs.
Cost Factors
Your price is personal to you. The biggest factors are your age, whether you smoke, your health, and the amount and length of cover you choose. Buying younger locks in a lower price, because premiums rise the longer you wait.
To show the typical cost, we have gathered average figures from published UK pricing. These are examples, not Life Adviser quotes.
| Average monthly cost of life insurance | Typical cost |
|---|---|
| Level term, the most common cover | Around £25 a month |
| Decreasing term, often used with a mortgage | Around £17 a month |
| Whole of life, covers you for life | Around £102 a month |
| Non smoker aged 30, £200,000 over 25 years | From about £8 to £15 a month |
| Smoker, on the same cover | Roughly double a non smoker |
| Average across policies | Around £21 a month |
Life Adviser analysis of published UK life insurance pricing, 2025 to 2026. Figures are illustrative and not quotes.3
How It Compares
Life insurance is often weighed against critical illness cover and income protection. This table from Life Adviser shows how they differ.
| Feature | Life insurance | Critical illness cover | Income protection |
|---|---|---|---|
| Pays out when | You die during the term | You are diagnosed with a covered serious illness | Illness or injury stops you working |
| What it pays | One tax free lump sum | One tax free lump sum | A regular monthly income |
| Typical monthly cost | Around £25 for level term | Around £25 to £30 | Around £8 to £60 |
| Best for | Protecting family and mortgage on death | A cushion if you survive a serious illness | Replacing income while unable to work |
Typical cost figures are Life Adviser analysis of UK protection pricing.3 Tax treatment depends on your circumstances and may change.
The three protect against different events, so some people hold more than one.
“Two things I always mention. Buy it sooner rather than later, because the price goes up every year you wait. And ask about writing the policy in trust. It is usually free, and it means the payout reaches your family faster, without waiting for probate.”
Worked Example
This is a simple illustration of how a policy might work. It is not a quote or a promise of cover.
Meet Tom. He is 34, a non smoker, with a partner, two children and a mortgage. He takes out £200,000 of level term cover for 25 years, written in trust, costing about £15 a month.
Eight years later he dies after a short illness. His partner contacts the insurer and sends a death certificate and a claim form. Because the policy is in trust, the £200,000 is paid straight to her within a couple of weeks, without waiting for probate, and free of inheritance tax. She uses it to clear the mortgage so the family can stay in their home. Had Tom outlived the 25 year term, the cover would simply have ended with no payout.
Why Use Life Adviser
Life insurance is simple in theory, but the choices around it, the type, the term, the trust, can be confusing. Life Adviser makes it clear.
We explain everything in plain English, with no jargon and no buried small print. We compile and cross check real UK claims and pricing data, so you see the full picture. And we help you compare cover from selected UK insurers so you can find a policy that fits.
The reassurance is in the numbers. In 2024, UK insurers paid a record £8 billion in protection claims, and around 97% of life insurance claims were paid.1 Life Adviser helps you compare and get quotes online, and does not give advice itself.
Frequently Asked Questions
How does the payout actually reach my family?
The people you choose, called beneficiaries, contact the insurer and send a death certificate and a claim form. The insurer checks the claim and pays a lump sum. If the policy is written in trust, the money goes straight to them. If not, it usually passes through your estate first.
How long does it take to pay out?
Straightforward claims are often paid within days to a few weeks once the insurer has the documents it needs. It can take longer if the estate has to go through probate, which is why writing the policy in trust can speed things up.
Does it pay out for any cause of death?
It pays out for almost any cause, through illness or accident. The usual exception is suicide in the first 12 months. A claim can also be refused if you did not answer the health questions honestly.
What is terminal illness cover?
Most term policies pay out early if you are diagnosed with an illness that cannot be cured and you are expected to live less than 12 months. You and your family can use the money while you are still alive.
Is the payout taxed?
It is normally paid tax free. It can count towards inheritance tax, charged at 40% above £325,000, unless the policy is written in trust, which keeps it outside your estate. Tax treatment depends on your circumstances and can change.
What is the difference between guaranteed and reviewable premiums?
Guaranteed premiums stay the same for the whole policy. Reviewable premiums can change after the insurer reviews them, usually rising as you get older. Guaranteed cover often costs a little more at the start but is easier to plan for.
What happens if I stop paying?
The cover usually stops, and there is no payout. Most term life policies build up no cash value, so there is nothing to get back. If money is tight, it is worth asking your insurer about options before cancelling.
This guide deals with death and serious illness. For impartial money guidance you can use MoneyHelper, the government backed service.
How Often It Pays Out
Life insurance pays out reliably. The chart below shows how often UK insurers paid claims in 2024.
| UK life insurance in 2024 | Figure |
|---|---|
| Term life claims paid | 96.5% |
| Whole of life claims paid | 99.9% |
| Total term life claims paid | £4.03 billion |
| Average payout | £79,703 |
Life Adviser analysis of ABI and Group Risk Development protection data 2024.1
Deciding If It Is Right For You
Life insurance does one important job well: it protects the people who depend on you if you die. It works best when the cover amount matches your mortgage and commitments, when the term lasts as long as your family needs, and when you write it in trust so the money reaches them quickly. Take your time, compare a few options, and answer the health questions honestly.
Cover, price and eligibility depend on your personal circumstances, age, health, smoker status and insurer terms. Life insurance pays out only during the policy term and is subject to the policy terms and claim approval. Life Adviser helps you compare insurance and does not provide regulated financial advice.
How We Researched This Guide
We write our guides from named, public UK sources and cross check the figures rather than rely on a single site. Where we say “Life Adviser analysis”, it means we have compiled and compared published data, not produced the raw figures ourselves.
The data on this page draws on:
- Association of British Insurers and Group Risk Development, protection claims data 2024 (published July 2025), for claims paid, total claims and the average payout.
- GOV.UK, for the inheritance tax threshold and rate.
- Published UK life insurance pricing, 2025 to 2026, and the SunLife Cost of Dying report for funeral costs.
- MoneyHelper, impartial guidance on life insurance.
Cost examples assume a healthy non smoker buying level term cover, with the age, cover amount and term stated. They are illustrative averages, not quotes, and your own price will depend on your age, health and the cover you choose.
Life Adviser compares cover from a selected panel of UK insurers and protection advisers, not the whole of the market. When you ask for a quote you may receive one online or be contacted by a qualified protection adviser from our panel. Life Adviser may receive a commission, which does not affect the price you pay.
Written and reviewed by Paul Gillooly, Founder of Life Adviser. Last reviewed June 2026.
Sources
- Association of British Insurers and Group Risk Development, “Record £8bn paid out in vital protection claims during 2024”, published July 2025. Term life 96.5% paid (£4.03 billion), whole of life 99.9% paid, average payout £79,703.
- GOV.UK, Inheritance Tax: nil rate band of £325,000 and a 40% rate above it. Tax treatment depends on your circumstances and may change.
- Life Adviser analysis of published UK life insurance pricing, 2025 to 2026, and the SunLife Cost of Dying report for funeral costs. Pricing figures are illustrative and not quotes.
- MoneyHelper, impartial guidance on life insurance.
