Life Insurance UK: Types, Costs, and How It Works

What Is Life Insurance?

Life insurance is a policy that pays out a lump sum to your beneficiaries when you die. The purpose is straightforward: it provides financial protection for the people who depend on your income or support. If you have a mortgage, children, a partner who relies on your earnings, or debts that would need to be repaid, life insurance ensures those obligations can be met even if you are no longer there.

You pay regular premiums (usually monthly) to the insurer. In return, the insurer guarantees to pay out a specified sum if you die during the term of the policy. The cost of your premiums depends on your age, health, lifestyle, and the amount and type of cover you choose.

Types of Life Insurance

Level Term Life Insurance

Level term insurance pays out a fixed lump sum if you die within the policy term. Both the payout amount and your premiums remain the same throughout. This is the most common and simplest form of life insurance, typically used to provide a specific amount of cover for a set period — for example, until your children finish education or until a mortgage is repaid on an interest-only basis.

Decreasing Term Life Insurance

With decreasing term insurance, the payout amount reduces over time, typically in line with a repayment mortgage balance. Because the sum assured decreases, premiums are lower than level term cover. This type of policy is commonly used alongside a repayment mortgage — as you pay down the mortgage, the cover reduces in step, so your family could repay the outstanding balance if you died.

Increasing Term Life Insurance

Increasing term insurance increases the payout amount each year, usually in line with inflation (RPI or a fixed percentage). Premiums also increase over time. This type helps ensure your cover keeps pace with the rising cost of living, so the payout retains its real value over a long policy term.

Whole of Life Insurance

Unlike term insurance, whole of life insurance has no end date — it pays out whenever you die, provided you continue to pay the premiums. This makes it more expensive than term cover because a payout is guaranteed. Whole of life policies are commonly used for inheritance tax planning, to cover funeral costs, or to leave a guaranteed legacy. Some whole of life policies have reviewable premiums, which means the insurer can increase them at review points (typically every 10 years).

Family Income Benefit

Family income benefit is a type of term insurance that pays out a regular tax-free income rather than a lump sum. If you die during the policy term, your family receives a monthly or annual income from the date of your death until the policy term ends. This can be a more practical way to replace a lost income, and because the total potential payout decreases over time (the closer to the end of the term you die, the fewer payments are made), it is often cheaper than level term cover for the same initial annual benefit.

Critical Illness Cover

Critical illness cover pays out a tax-free lump sum if you are diagnosed with a specified serious illness during the policy term. It can be purchased as a standalone policy or added to a life insurance policy (often called "life and critical illness cover"). If combined with life insurance, the policy typically pays out once — either on diagnosis of a critical illness or on death, whichever happens first.

Common conditions covered by most policies include:

• Cancer (excluding early-stage cancers in most policies)
• Heart attack
• Stroke
• Multiple sclerosis
• Organ transplant
• Coronary artery bypass surgery

Not all conditions are covered, and the definitions of covered conditions vary between providers. Some policies cover more conditions than others, and the severity thresholds for a successful claim can differ significantly. Policy documentation details the specific definitions, which are more relevant than the number of conditions listed.

How Much Cover Do You Need?

There is no single correct answer — the right amount of cover depends on your personal circumstances. However, there are several common approaches used to calculate a starting point:

• Income replacement (10x salary): A common rule of thumb is to insure yourself for 10 times your annual salary. This provides a lump sum that, if invested conservatively, could replace your income for a significant period.
• Mortgage cover: At a minimum, many people take out cover equal to their outstanding mortgage balance, ensuring the home can be kept if they die.
• Debts plus living costs: Add up your mortgage, other debts, and the annual living costs your family would need, multiplied by the number of years until your youngest child is financially independent.

Your needs will change over time. As your mortgage reduces, your children grow up, and your savings increase, you may need less cover. It is worth reviewing your life insurance periodically — particularly after major life events such as buying a home, having a child, or changing jobs. See our financial planning for new parents guide for more on how starting a family affects your insurance needs.

What Affects the Cost?

Life insurance premiums are calculated based on the insurer's assessment of how likely you are to make a claim during the policy term. The main factors that affect cost include:

• Age: The younger you are when you take out a policy, the cheaper it will be.
• Health: Pre-existing medical conditions, family medical history, BMI, and blood pressure all affect pricing.
• Smoker status: Smokers (or those who have used nicotine products in the last 12 months) pay significantly higher premiums.
• Occupation: Higher-risk jobs (e.g., construction, offshore work) result in higher premiums.
• Hobbies: Dangerous hobbies such as skydiving, scuba diving, or motorsport can increase costs.
• Amount of cover, term length, and policy type: Higher cover, longer terms, and more comprehensive policy types (e.g., whole of life vs term) all cost more.

Writing a Life Insurance Policy in Trust

Placing a life insurance policy in trust means the payout is held by trustees for the benefit of your chosen beneficiaries, rather than forming part of your estate. This has two significant advantages:

• Avoids probate: The payout goes directly to your beneficiaries without waiting for probate to be granted, which can take months.
• Potentially outside your estate for IHT: Because the policy is not part of your estate, the payout may not be subject to inheritance tax (IHT). This can be particularly valuable for larger estates.

Most life insurance providers offer trust forms at no additional cost, and it is usually a straightforward process to set up at the time you take out the policy. It is generally much simpler to place a policy in trust at the outset than to do so later.

Employer Life Insurance (Death in Service)

Many employers offer death-in-service benefit as part of their employee benefits package. This is a form of life insurance that pays out a lump sum — typically 2 to 4 times your annual salary — if you die while employed by that company. Death-in-service benefit is usually provided at no cost to the employee and does not require medical underwriting, which means you are covered regardless of health conditions.

Before purchasing additional personal life insurance, check what employer cover you already have. However, be aware that death-in-service benefit ends when you leave the company, so it should not be relied upon as your sole cover if there is any possibility of changing jobs or becoming self-employed.

Joint vs Single Policies

Couples often consider whether to take out a joint life insurance policy or two separate single policies. A joint policy covers both partners but only pays out once — on the first death. It is typically cheaper than two single policies because the insurer only makes one payment.

However, two single policies may offer better value and flexibility. With two single policies, each pays out independently, meaning the surviving partner retains their own cover after the first death. With a joint policy, the surviving partner would need to take out a new policy — potentially at an older age and higher cost, or with health conditions that make cover more expensive or harder to obtain.

Common Exclusions

Life insurance policies typically include a number of exclusions that could result in a claim being declined:

• Suicide within the first 12 months: Most policies will not pay out if the policyholder dies by suicide within the first year of the policy (some policies extend this to 24 months).
• Non-disclosure of pre-existing conditions: If you fail to disclose relevant medical history or lifestyle factors when applying, the insurer may void the policy or refuse to pay a claim.
• Dangerous activities: Some policies exclude death resulting from specific dangerous activities, particularly if these were not disclosed at application. Always declare any hazardous hobbies or occupations.

Full and honest disclosure at the application stage is essential. Insurers operate on the principle of "utmost good faith" — if you are unsure whether something is relevant, disclose it. It is far better to declare something that turns out to be irrelevant than to have a claim refused because of non-disclosure.

If you are also considering protection against loss of income due to illness or injury, read our income protection insurance guide. For those starting a family, our financial planning for new parents guide covers how to build a comprehensive protection plan.