UK Life Insurance Types: Term, Whole-of-Life, Decreasing

UK life insurance comes in several variants, each suited to a different use case. The choice depends on whether the cover is for a debt (typically declining over time), for dependants (typically a lump sum or income stream), or for inheritance planning (typically whole-of-life). This article walks through the main types.

Level term

Level term pays a fixed lump sum on death within the term. It is typically used to provide a defined sum for dependants. Premiums are typically level for the term and the sum insured stays constant.

Decreasing term

The sum insured reduces over the term, typically matching the outstanding balance on a repayment mortgage. Premiums are usually lower than level term because the expected payout reduces over time.

Increasing term

The sum insured grows over the term, typically by an indexed amount or a fixed annual percentage, to keep pace with inflation. Premiums grow correspondingly. Useful where the protection need is expected to grow rather than decline.

Family income benefit

Pays a regular monthly or annual amount for the remainder of the term, rather than a lump sum. Often cheaper than equivalent lump-sum cover and easier for many households to budget around. The total payout depends on when the claim is made within the term.

Whole-of-life

Pays out on death whenever it occurs, provided premiums are maintained. Used for inheritance planning, covering a guaranteed funeral cost, or providing a guaranteed sum to a beneficiary regardless of when death occurs. Premiums are typically higher than equivalent term cover.

Level term insurance in detail

Level term pays a fixed lump sum on death within the term. It is typically used to provide a defined sum for dependants. Premiums are typically level for the term and the sum insured stays constant.

The term is chosen by the policyholder at outset, typically 10 to 40 years. The choice should reflect the period during which dependants need protection: until children are independent; until the mortgage is paid off; until retirement; or other relevant horizons. Longer terms are typically appropriate while children are young; shorter terms suit households where dependants will become financially independent within a defined period.

Premiums depend on the sum insured, the term length, the applicant's age and smoker status at outset, and any additional underwriting factors. A 35-year-old non-smoker taking GBP 200,000 of 25-year level term typically pays GBP 12 to GBP 25 per month; the same person at 45 with the same cover taken at age 45 might pay GBP 25 to GBP 50 per month.

Level term is the most flexible life cover for general protection needs. It can be combined with critical illness cover (CICI), written in trust for IHT efficiency, and structured as joint or single life. The cover ends when the term expires; no payout is made if the insured survives the term.

Decreasing term insurance in detail

The sum insured reduces over the term, typically matching the outstanding balance on a repayment mortgage. Premiums are usually lower than level term because the expected payout reduces over time.

The reduction is typically calculated to track a defined repayment mortgage at a specified interest rate. If the actual mortgage rate or balance differs from the assumption (such as through overpayments, remortgaging, or rate changes), the cover may not exactly match the outstanding balance. The mismatch is typically small but worth checking.

Decreasing term is most commonly sold alongside repayment mortgages. The cover pays off the mortgage if the borrower dies, allowing the surviving partner or dependants to remain in the home without mortgage debt.

Premiums for decreasing term are typically 20% to 40% lower than equivalent level term over the same term, reflecting the lower expected payout. For a GBP 200,000 25-year mortgage, the cover starts at GBP 200,000 and reduces to zero over 25 years; the average expected cover is around half the starting amount.

For mortgages on interest-only basis, level term is more appropriate because the balance does not decrease. For repayment mortgages, decreasing term is typically the cost-efficient choice for mortgage protection.

Increasing term and family income benefit

Increasing term grows the sum insured over the term, typically by an indexed amount or a fixed annual percentage, to keep pace with inflation. Premiums grow correspondingly. The cover suits situations where the protection need is expected to grow rather than decline.

Index-linked increases are typically based on the Retail Prices Index (RPI) or sometimes CPI. The annual increase typically tracks the index plus a defined margin. The premium increase mirrors the cover increase.

Family Income Benefit (FIB) pays a regular monthly or annual amount for the remainder of the term, rather than a lump sum. Often cheaper than equivalent lump-sum cover and easier for many households to budget around. The total payout depends on when the claim is made within the term.

For example, a 25-year FIB policy paying GBP 30,000 per year on death has a maximum total payout of GBP 750,000 if death occurs in year 1 (with 25 years of payments still to come). If death occurs in year 20, only 5 years of payments are made, totalling GBP 150,000.

FIB suits households that want income replacement for dependants over a defined period (such as until children finish education). It tends to be easier to budget around than a lump sum that must be invested or drawn down.

Whole-of-life in detail

Whole-of-life pays out on death whenever it occurs, provided premiums are maintained. The cover does not expire as long as premiums are paid. Used for inheritance planning, covering a guaranteed funeral cost, or providing a guaranteed sum to a beneficiary regardless of when death occurs.

Premiums are typically higher than equivalent term cover because the insurer will eventually pay out (death is certain, only the timing is uncertain). Whole-of-life premiums also typically continue through the policyholder's life rather than ending at a fixed term.

Some whole-of-life policies use a 'review' structure where premiums can be adjusted at periodic intervals (typically every 10 years) based on the insurer's experience. Reviewable premiums can rise significantly at reviews if claims experience has been worse than expected. Guaranteed-premium whole-of-life policies have higher initial premiums but no review risk.

For IHT planning, whole-of-life policies are written in trust to provide a lump sum on death to fund the IHT bill or to provide to beneficiaries outside the estate. The cover continues throughout life, ensuring the IHT funds are available whenever death occurs.

Some whole-of-life policies include a 'with profits' or 'investment' element that builds a cash value over time. These hybrid products can be complex; reading the product terms carefully is essential.

Joint life and combination structures

Joint life policies cover two people, typically a couple. The standard structure is 'first death' (paying when the first of the two insured persons dies); 'second death' (paying when the second person dies) is used in some IHT planning structures.

Joint life first death is typically cheaper than two single life policies of equivalent cover because the insurer only pays once. The trade-off is that the survivor has no continuing cover; if cover is needed throughout both lives, two single policies provide more flexibility.

Joint life second death is used in IHT planning where the surviving spouse benefits from the spouse exemption on first death; the second death triggers the IHT charge and the policy funds the bill. Premiums are typically lower than first death joint policies because the payout is later.

Combination structures include CICI (critical illness with life cover), where the policy pays on either critical illness diagnosis or death (whichever comes first). The combined cost is typically less than two separate policies but the cover ends after the first claim type.

Stacked or layered structures use multiple policies to provide combined cover. For example, a mortgage protection decreasing term plus a separate level term for family income protection plus FIB for ongoing income. Layered structures can be more cost-efficient than a single large policy because the individual covers can be optimised for their specific purpose.

Disclaimer

This article provides general information based on rules and figures published by UK government and regulator sources as of May 2026. It is not personal financial, legal, immigration or tax advice. Rules, fees and figures change and individual circumstances vary. Readers should check primary sources or consult a qualified, regulated adviser before acting on any information here.

Frequently asked questions

Which type matches a mortgage?

Decreasing term typically matches a repayment mortgage. Level term may be preferred if the cover is also intended to provide a lump sum for dependants beyond the mortgage. For interest-only mortgages, level term is more appropriate because the balance does not decrease. The choice depends on whether the cover is purely for mortgage protection or also for broader family protection.

Is whole-of-life always paid out?

Yes, provided premiums are maintained. Some whole-of-life policies use a review structure where premiums can be adjusted; check the specific product terms. Guaranteed-premium whole-of-life policies have predictable lifetime cost; reviewable-premium policies have lower initial premiums but potential increases at review periods.

Does the insurer's claim rate matter?

Yes. ABI publishes data on claim payout rates across the industry. Reputable insurers typically pay over 95% of claims. Insurers with lower payout rates are flagged in industry data; the reasons for declined claims (non-disclosure, exclusions, policy terms) provide insight into the insurer's underwriting and claims approach.

Can policies be cancelled mid-term?

Yes. Policyholders can cancel at any time. Cancelling a term policy means losing the cover and the premiums paid. There is no surrender value on term policies (unlike some whole-of-life policies which may have a cash value). The decision to cancel should consider whether equivalent cover can be obtained later at the same rate (typically not, because the policyholder is now older).

Are written-in-trust policies more expensive?

No. Trust paperwork is typically free from the insurer. The trust affects how the payout is paid (outside the estate, faster, without probate), not the cover itself. The premium is the same regardless of trust placement. The IHT benefit and the speed of payment make trust placement valuable for many households at no additional cost.

Can life cover be increased after taking out the policy?

Some policies include 'guaranteed insurability options' that allow cover to be increased at specific life events (marriage, child, mortgage) without fresh underwriting. Without such options, increasing cover typically requires a new policy with fresh underwriting at current age and medical status.

What is convertible term insurance?

Convertible term allows the policyholder to convert the term policy to whole-of-life cover within a defined period without fresh medical underwriting. Useful for policyholders whose health may have deteriorated since the original underwriting; allows continuing cover without facing higher premiums or refusal due to new health issues.

Frequently asked questions

Which type matches a mortgage?

Decreasing term typically matches a repayment mortgage. Level term may be preferred if the cover is also intended to provide a lump sum for dependants beyond the mortgage. For interest-only mortgages, level term is more appropriate because the balance does not decrease. The choice depends on whether the cover is purely for mortgage protection or also for broader family protection.

Is whole-of-life always paid out?

Yes, provided premiums are maintained. Some whole-of-life policies use a review structure where premiums can be adjusted; check the specific product terms. Guaranteed-premium whole-of-life policies have predictable lifetime cost; reviewable-premium policies have lower initial premiums but potential increases at review periods.

Does the insurer's claim rate matter?

Yes. ABI publishes data on claim payout rates across the industry. Reputable insurers typically pay over 95% of claims. Insurers with lower payout rates are flagged in industry data; the reasons for declined claims (non-disclosure, exclusions, policy terms) provide insight into the insurer's underwriting and claims approach.

Can policies be cancelled mid-term?

Yes. Policyholders can cancel at any time. Cancelling a term policy means losing the cover and the premiums paid. There is no surrender value on term policies (unlike some whole-of-life policies which may have a cash value). The decision to cancel should consider whether equivalent cover can be obtained later at the same rate (typically not, because the policyholder is now older).

Are written-in-trust policies more expensive?

No. Trust paperwork is typically free from the insurer. The trust affects how the payout is paid (outside the estate, faster, without probate), not the cover itself. The premium is the same regardless of trust placement. The IHT benefit and the speed of payment make trust placement valuable for many households at no additional cost.

Can life cover be increased after taking out the policy?

Some policies include 'guaranteed insurability options' that allow cover to be increased at specific life events (marriage, child, mortgage) without fresh underwriting. Without such options, increasing cover typically requires a new policy with fresh underwriting at current age and medical status.

What is convertible term insurance?

Convertible term allows the policyholder to convert the term policy to whole-of-life cover within a defined period without fresh medical underwriting. Useful for policyholders whose health may have deteriorated since the original underwriting; allows continuing cover without facing higher premiums or refusal due to new health issues.