Life Insurance Underwriting Explained: From Application to Policy

Underwriting is the process by which an insurer assesses the risk presented by an individual applicant and decides whether — and on what terms — to offer cover. For life insurance and related protection products, underwriting encompasses both financial assessment (how much cover is appropriate relative to the applicant's financial circumstances?) and medical assessment (what is the applicant's health and mortality risk?). Understanding how underwriting works gives applicants and their advisers the information needed to navigate the process efficiently and manage expectations about likely outcomes.

Financial Underwriting: Insurable Interest and Income Multiples

Financial underwriting exists to ensure that an individual does not purchase more life insurance than they have a legitimate financial need for. Overly large death benefits could create a moral hazard — a financial incentive for the insured's own death. Insurers therefore apply financial underwriting as a matter of course for large sums assured.

Insurable interest: For personal life insurance, insurable interest is established by the applicant's own life or the life of a spouse or civil partner. Business life insurance (key person, shareholder protection) requires demonstration of a financial interest — typically through financial accounts showing the business's profitability and the key person's contribution.

Income multiples: For working-age individuals applying for level or decreasing term assurance, insurers typically apply income multiples to determine the maximum sum assured they will consider without requiring significant additional financial justification. Common non-medical limits include:

• Under age 40: up to 20–25x annual income
• Age 40–49: up to 15–20x annual income
• Age 50+: progressively reducing multiples, to 10x or below

An applicant aged 35 earning £80,000 might therefore be eligible for up to £1.6–2 million of life assurance without specific financial evidence. Above these limits, insurers may require evidence of the financial justification — business accounts, pension fund values, mortgage schedules, estate planning documentation.

Non-medical limits (NML): Separate from income multiples, insurers operate non-medical limits defining the sum assured below which no medical evidence (beyond a standard application questionnaire) is required. NMLs vary by age and insurer. For a 35-year-old, a typical NML might be £750,000–£1 million. Above the NML, medical evidence is required regardless of health history.

Medical Underwriting: How Insurers Assess Health Risk

For applications above the NML (or where health disclosures on the application form indicate potential risk), the insurer's medical underwriting process begins.

The application questionnaire: Every life insurance application includes a health declaration — questions about medical history, current health conditions, family history, lifestyle (smoking, alcohol, exercise), occupation, and travel. The applicant's responses are the foundation of medical underwriting. Full and accurate disclosure is a legal obligation; non-disclosure or misrepresentation can void the policy at claim.

GP report: For applications above defined thresholds (or where health disclosures warrant it), the insurer will request an Attending Physician Statement (APS) from the applicant's GP. The GP report covers recent consultations, diagnoses, prescriptions, referrals, and any conditions relevant to the application. GP reports typically take two to six weeks and are a common cause of delay in the underwriting process.

Nurse screen: Above higher thresholds (typically £500,000–£1 million+, depending on insurer), a nurse screen is required. A qualified nurse attends the applicant's home or workplace and takes measurements (height, weight, blood pressure, pulse, urinalysis) and blood samples (full blood count, cholesterol, glucose, liver function, HIV). Results are sent directly to the insurer's medical team.

Chief Medical Officer (CMO) review: For complex cases — significant medical history, large sums assured, multiple health conditions — the insurer's CMO or consulting medical officer will review all available evidence before making a decision.

Specialist reports: In some cases, the insurer may request a specialist medical report (cardiology, oncology, neurology) or a report from the applicant's treating specialist, in addition to the GP report.

Loading Types: How Rated Decisions Work

When underwriting identifies elevated risk — whether from medical conditions, lifestyle factors, or occupational hazards — the insurer has several options:

Standard terms: No additional premium. The application is assessed as presenting standard risk and the quoted premium applies.

Percentage loading: The premium is increased by a defined percentage above the standard rate. A 50% loading on a £100/month standard premium produces a premium of £150/month. Common for conditions that increase mortality risk modestly — controlled hypertension, mild asthma, a history of depression in remission, elevated BMI.

Per mille loading: An additional premium is added per £1,000 of sum assured per year. A 3 per mille loading on £500,000 sum assured adds £1,500/year to the premium. Per mille loadings are used for conditions where the absolute additional risk is more appropriately expressed relative to the sum assured than as a percentage of the base premium.

Exclusion: Specific causes of death (or, in the case of income protection or critical illness, specific conditions) are excluded from cover. For example, a history of back surgery may result in a back condition exclusion on an income protection policy. This allows cover to be offered at standard premium, with the applicant accepting the exclusion voluntarily.

Postponement: The insurer defers a decision — typically where a condition is under active investigation or treatment and the eventual risk profile is unclear. Common after recent cancer diagnosis or cardiac events.

Declination: The insurer declines to offer cover. This is relatively uncommon for large, reputable insurers in straightforward cases; specialist insurers and the impaired life market can often accommodate cases that standard insurers decline.

Rated Policies: Managing Expectations

Being offered rated terms — rather than a decline — is often a positive outcome. A 100% loading doubles the premium but provides genuine cover. A back exclusion removes one risk but leaves all others covered.

Applicants with rated or excluded policies should:

• Compare across multiple insurers, as underwriting decisions vary significantly between insurers for the same condition
• Review ratings periodically — conditions that attracted a loading in the past may be reassessed as medical evidence evolves or the condition improves
• Understand what the exclusion or loading covers — and whether the excluded condition genuinely represents a material risk for their circumstances

Specialist advisers with access to the impaired life market can significantly improve outcomes for applicants with complex medical histories.

Moratorium Underwriting for Income Protection

Income protection insurance uses a distinct underwriting approach — moratorium underwriting — as an alternative to full medical disclosure.

Under moratorium underwriting:

• The applicant does not disclose their medical history on the application
• Cover commences immediately with no individual assessment
• Any condition that existed in the period before the policy start date (commonly the previous five years, though some providers use three) — and from which the applicant sought advice or treatment, or was aware of — is automatically excluded
• The exclusion automatically lifts once the applicant has been free of symptoms, advice and treatment for that condition for a continuous period (typically two years) after the policy starts

The advantage of moratorium underwriting is speed (no GP reports or nurse screens required) and a reduced chance of permanent exclusions for conditions that the applicant manages but which might attract exclusions under full medical underwriting. The disadvantage is uncertainty — the applicant may not know whether a specific condition would be covered in the early years.

Full medical underwriting (FMU) — disclosing all conditions and having them assessed — produces a definitive list of covered and excluded conditions but takes longer and may result in permanent exclusions. For applicants who want certainty, FMU is preferable; for those who want speed and are confident they can manage the initial exclusion period, moratorium may be appropriate.

Misrepresentation and the Insurer's Right to Investigate Claims

There is a common misconception — imported largely from US life insurance, where a statutory two-year "contestability period" applies — that a UK life policy becomes uncontestable after a fixed period. UK law works differently. Under the Consumer Insurance (Disclosure and Representations) Act 2012 (CIDRA), there is no automatic time bar after which a policy can no longer be challenged. Instead, the insurer's remedy depends on the nature of any misrepresentation made when the policy was taken out:

• Deliberate or reckless misrepresentation: the insurer may void the policy from inception, refuse the claim, and keep the premiums.
• Careless misrepresentation: the insurer applies a "proportionate remedy" — it does what it would have done had the truth been known (decline and return premiums, reduce the claim proportionately, or apply an exclusion retrospectively).
• Reasonable (innocent) misrepresentation, where the consumer took reasonable care: the insurer must pay the claim in full.

When any claim is made — whether in the first year or many years later — the insurer is entitled to review the application disclosures against the deceased's medical records and investigate whether all material facts were stated accurately. Some insurers operate voluntary "non-contestability" or guaranteed-acceptance practices for innocent errors after a set period, but this is a matter of insurer policy and the specific contract wording, not a legal right that arises automatically at two years.

This underlines the importance of accurate and complete disclosure at application. A careless omission (for example, forgetting to mention a relevant GP consultation) can be devastating if a claim arises and the insurer discovers the omission during investigation.

Reinsurance and Large Sum Assured Applications

For very large sums assured — typically above £2–5 million for an individual life — the placing insurer will often reinsure part of the risk with a reinsurer (Munich Re, Swiss Re, RGA, Gen Re, SCOR are the major UK market participants). The reinsurer may wish to review the underwriting evidence directly and, in some cases, impose conditions or loadings of their own.

Where reinsurance is required:

• The underwriting process takes longer (the reinsurer must review the file)
• The reinsurer's terms become relevant to the final offer
• For very large sums, multiple reinsurers may need to share the risk

For HNW individuals seeking large sums assured — say, £5–10 million or more — working with a specialist intermediary who understands the reinsurance market and can approach multiple insurers and reinsurers simultaneously is important. This is sometimes called "facultative reinsurance placement" and requires advisers with London market relationships.

Important: Underwriting standards, NMLs, and the availability of certain cover for specific conditions vary between insurers and change over time as medical evidence and insurer appetite evolve. This guide reflects general market practice as at the date of publication. Individual underwriting outcomes cannot be predicted and should be assessed through formal application.

How Global Investments Can Help

Global Investments advises high-net-worth individuals on life insurance and protection applications involving large sums assured or complex medical histories. We have extensive experience managing applications across multiple insurers simultaneously — including specialist impaired life markets and offshore insurers who can accommodate applications that UK standard market insurers decline.

We prepare applications carefully, coordinating evidence and managing the underwriting process proactively to minimise delays and maximise the likelihood of competitive terms. For applications requiring reinsurance, we maintain relationships with major London market reinsurers and can facilitate the placement of large sums assured.

Contact our underwriting team to discuss your life insurance application requirements.