Term assurance pays a lump sum (or, in one common variant, a regular income) if the policyholder dies during a defined period. If the policyholder survives to the end of the term, the policy expires and nothing is paid. It is the simplest and usually the lowest-cost form of life insurance, which makes it the most widely used starting point for personal and business protection planning.
This guide is intended for UK-resident and internationally mobile professionals seeking to understand the key variables: term structure, premium type, policy ownership, and the less familiar but important family income benefit variant.
This is general information only. Insurance terms, availability, tax treatment, and regulatory rules differ by jurisdiction and individual circumstances. You should take qualified advice before purchasing any protection policy.
What is Term Assurance?
A term assurance policy is a contract between you and an insurer under which the insurer agrees to pay a defined sum assured if you die before a specified date. The term is typically set to coincide with a financial dependency — a mortgage, dependent children reaching adulthood, or a business loan reaching maturity.
There is no investment element. Premiums are paid in exchange for pure risk cover, and there is no surrender value at any stage. This simplicity is both its strength (lower cost) and its limitation (no residual asset if the cover is never claimed).
Level Term Assurance
The sum assured remains constant throughout the policy term. If you arrange £500,000 of level term cover over 25 years, the policy pays £500,000 whether you die in year one or year 24.
Level term is appropriate when the underlying liability does not reduce over time — for example:
- Family income replacement, where the household requires a fixed capital sum to generate investment income if the breadwinner dies.
- Interest-only mortgage protection, where the outstanding capital does not reduce during the mortgage term.
- Business loan protection where the debt is structured on an interest-only basis.
- Inheritance tax (IHT) planning, particularly whole-of-estate strategies and 7-year gift tapering periods (though whole-of-life policies are more commonly used here).
Because the insurer's risk exposure does not reduce over time, level term premiums are higher than decreasing term premiums for the same initial sum assured.
Decreasing Term Assurance
The sum assured reduces over the policy term, typically following a capital repayment mortgage schedule. Premiums are usually lower than level term.
The most common use is capital repayment mortgage protection, where the outstanding debt reduces each month in line with capital repayments, and the sum assured is designed to broadly mirror that reduction. If you die, the policy payout clears the remaining mortgage balance.
It is important to understand that the rate at which the sum assured decreases under an insurance policy may not precisely match your mortgage balance — particularly if you make overpayments, take payment holidays, or if interest rates change on a variable mortgage. Periodic reviews are advisable.
A decreasing term policy is generally not suitable for interest-only mortgages, family income replacement, or situations where the underlying liability does not reduce. Using it incorrectly can leave a significant protection gap.
Guaranteed versus Reviewable Premiums
Guaranteed premiums are fixed at the outset and do not change for the duration of the policy. You know exactly what you will pay each month for the entire term. Most straightforward term policies offer guaranteed premiums, and for most clients this is the preferred structure — certainty over cost has real value.
Reviewable premiums start lower but are subject to periodic revision (commonly every five or ten years) by the insurer. The insurer can increase premiums if claims experience across its book worsens, if medical research changes the risk profile for certain conditions, or for other actuarial reasons. The initial saving can be eroded entirely — or exceeded — at the first review.
Reviewable premiums can make sense in limited circumstances — for example, if you plan to increase cover substantially in the near term (the lower initial outlay can free up cash while protection needs are evaluated) or where guaranteed premiums are unavailable due to medical history. In most cases, guaranteed premiums are more predictable and should be the default unless there is a specific reason to accept review risk.
Indexation (Inflation-Linking)
An uninflated lump sum erodes in real value over time. A £300,000 policy arranged today will purchase considerably less in 20 years than it does now.
Indexation allows the sum assured (and premium) to increase annually, typically in line with the Retail Price Index (RPI) or the Consumer Price Index (CPI), or by a fixed percentage (commonly 3% or 5% per annum). You are not required to provide new medical evidence for contractual indexation increases.
Whether indexation is worth the higher premium depends on the nature of the underlying liability. A capital repayment mortgage has a defined reducing balance, so inflation-linking is not obviously necessary for that portion. Income replacement objectives, however, benefit from indexation because wages and living costs increase over time.
Joint Life versus Separate Policies
A joint life term policy covers two lives and pays out on the first death during the term. After the claim, the policy ends — the surviving partner is left without cover and must arrange new insurance at their then-current age and health status, which may be significantly more expensive or, if health has declined, impossible at reasonable premiums.
Two separate single-life policies cost more initially but provide continued cover for both lives after either one has claimed. For a couple with young children, this is usually the appropriate structure: the surviving parent needs income replacement protection too.
Separate policies also offer greater flexibility:
- Each policy can be written in trust independently, naming appropriate beneficiaries.
- The policies can be assigned separately in the event of relationship breakdown.
- Different terms and sums assured can be arranged to match each person's individual liability and income.
The cost difference between joint and two-separate policies narrows considerably at younger ages and in good health. For most planning scenarios, the flexibility of separate policies justifies the marginal additional premium.
Convertibility Options
Some term assurance policies include a conversion option (also called a convertibility clause), which allows the policyholder to convert the term policy to a whole-of-life or endowment policy at the end of the term, or at specified intervals, without providing further evidence of health.
This is valuable if your circumstances change — for example, if your health deteriorates and you can no longer obtain new life insurance on standard terms, the conversion option lets you lock in whole-of-life cover at a premium reflecting your health at the original policy commencement.
Policies with conversion options typically carry a small premium loading. Whether this is worthwhile depends on your age, health status, and long-term protection goals. For younger clients in good health, a conversion option can be a cost-effective way to preserve future insurability.
Family Income Benefit
Family income benefit (FIB) is a variant of term assurance that pays a regular income rather than a lump sum if the policyholder dies during the term. The income is typically paid monthly, tax-free (in the UK, life insurance proceeds are not subject to income tax), and continues until the end of the original policy term.
Example: you arrange a 20-year family income benefit policy paying £3,000 per month. If you die in year 7, your family receives £3,000 per month for the remaining 13 years.
Key characteristics of FIB:
- Reducing benefit: the earlier in the term you die, the longer the income period and the greater the total benefit. As the term progresses, the remaining payout period shortens. The present value of the benefit decreases as the term matures, so premiums are often lower than equivalent lump sum cover.
- Simplicity for dependants: a regular monthly income is easier to manage than a large lump sum for families not experienced in investment management.
- Inflation risk: unless indexed, a fixed monthly income erodes in real terms over a 15-20 year payout period. Inflation-linked FIB policies are available.
- Business use: FIB is less commonly used in business protection, where lump sums are generally required to clear loans, fund buy-sell arrangements, or replace lost profits.
FIB can be combined with a smaller lump sum term policy to provide a hybrid solution: a capital sum to clear the mortgage plus a monthly income stream for living costs.
Critical Illness Riders
Term assurance can be arranged as a standalone life-only policy or with a critical illness rider that adds a payment on diagnosis of specified serious illnesses (typically cancer, heart attack, stroke, and a range of other conditions defined by the insurer). Combined life and critical illness policies pay the sum assured on whichever occurs first — death or diagnosis — and the policy then ends.
Whether to take a combined or separate critical illness policy is a planning decision. Standalone critical illness cover maintains its full sum assured after a life insurance claim (in theory — both events happening is unlikely but not impossible in a two-policy structure). For most clients, the combined approach is simpler and more cost-effective.
Critical illness cover is a substantial topic in its own right and is addressed in dedicated guides on this site.
Tax Treatment in the UK
Premiums: term assurance premiums are not tax-deductible for individuals. Certain business protection arrangements (relevant life policies, key person cover) have distinct tax treatments — see the relevant guides.
Proceeds: life insurance proceeds paid to the beneficiary are free of income tax and capital gains tax. However, if the proceeds form part of the deceased's estate, they may be subject to inheritance tax. Writing the policy in trust keeps the payout outside the estate and can eliminate this liability — see the guide on writing insurance in trust on this site.
Overseas clients: if you are not UK-resident, the tax treatment of premiums and proceeds will depend on your country of residence and domicile. International clients should take advice in both their country of residence and their country of domicile.
Common Mistakes to Avoid
- Underinsuring: many people arrange mortgage cover only and overlook income replacement, childcare costs, and the non-financial contributions of a non-earning partner.
- Choosing reviewable over guaranteed premiums primarily for the lower starting cost without understanding the review risk.
- Taking joint life cover when separate policies would provide significantly better protection at a modest extra cost.
- Not writing the policy in trust, leaving the payout subject to probate delay and potential IHT.
- Forgetting indexation, particularly on income replacement cover arranged for long terms.
- Not reviewing cover at life events: marriage, children, house purchase, salary increases, and business formation all change protection requirements.
How Global Investments Can Help
Global Investments works with high-net-worth individuals, business owners, and internationally mobile professionals to design protection arrangements that match their specific circumstances — whether they are UK-resident, living as an expatriate, or operating across multiple jurisdictions.
Our advisers can assess your protection needs across your full financial picture, source and compare policies from leading UK and international insurers, and structure policies appropriately — including trust arrangements, business protection vehicles, and multi-currency solutions. We do not accept commission arrangements that compromise the quality of our advice.
If you would like a review of your existing term assurance or would like to explore new cover, please contact us to arrange a no-obligation consultation.
All figures and tax treatments in this guide are based on UK rules as at June 2026. Rules may change. This article is for general information only and does not constitute regulated financial advice. Protection products can vary significantly between insurers and jurisdictions. Past performance and current rates are not a guarantee of future outcomes. Always seek independent professional advice before taking out or amending any insurance policy.
This guide is for general information only and does not constitute financial or insurance advice. Policy terms, premium rates, and insurer eligibility criteria change — always verify current terms with a qualified independent adviser before taking out any policy.