Quick summary For more information, see FCA insurance guidance.
- More than a third of UK mortgage holders have no life insurance, income protection or critical illness cover
- Life insurance pays off the mortgage if you die; income protection covers payments if you cannot work
- Critical illness cover pays a lump sum on diagnosis of a specified serious illness
- Most people need a combination of all three, not just life cover
People in the UK are statistically more likely to insure their pet than to protect their own income. That fact from industry research is surprising until you consider the psychology: a vet bill feels immediate and tangible, whilst the chance of being unable to work for months due to illness feels remote until it happens.
For anyone with a mortgage, the financial consequences of being unable to meet repayments are very real. This guide explains the three main types of mortgage protection, how each one works, what they cost, and how to decide what you actually need.
The three types of mortgage protection
Life insurance (mortgage life cover)
Life insurance pays out a cash sum if you die during the policy term. For most homeowners, the purpose is straightforward: if you die, the payout clears the mortgage, meaning your family can remain in the home without the financial burden of keeping up repayments on a single income.
There are two main types:
- Decreasing term: The payout reduces over time, roughly in line with a repayment mortgage balance. This is the most common and cheapest option for mortgage protection purposes.
- Level term: The payout stays the same throughout the policy. More expensive, but leaves a surplus above the mortgage balance that can support the family’s wider financial needs.
Critical illness cover
Critical illness cover pays a tax-free lump sum if you are diagnosed with a specified serious illness, such as cancer, a heart attack or stroke, and you survive for a defined period after diagnosis (usually 14 days). The payout can be used to clear the mortgage, adapt the home, fund private treatment or replace lost income during recovery.
Modern medicine means significantly more people survive serious illnesses than was the case thirty years ago. The survival rate for many cancers and cardiac events has improved dramatically. Critical illness cover exists precisely because surviving a serious illness does not mean you are immediately fit to return to work or meet your financial commitments as normal.
Income protection
Income protection pays a monthly benefit, typically 50 to 70% of your gross income, if you are unable to work due to any illness or injury. It continues paying until you recover and return to work, or until the end of the policy term. Unlike critical illness cover, it is not restricted to a defined list of conditions: any illness or injury that prevents you from doing your job is covered, subject to the policy’s own occupation definition.
This is arguably the most important and most commonly overlooked protection product. Statutory Sick Pay in 2026 is £116.75 per week for up to 28 weeks. On an average UK mortgage of around £152,000, SSP would not cover even a single monthly payment, let alone all other household costs. Most employees’ sick pay from their employer is similarly time-limited.
How each product addresses different risks
| Risk | Life insurance | Critical illness | Income protection |
|---|---|---|---|
| Death | Yes, pays lump sum | No | No (stops paying on death) |
| Serious illness diagnosis (cancer, heart attack, stroke) | No | Yes, pays lump sum | Yes, pays monthly income if off work |
| Long-term illness preventing work | No | Only if condition is on the covered list | Yes, any illness or injury that stops you working |
| Short-term illness (less than deferred period) | No | No | No (deferred period applies, typically 4 to 26 weeks) |
What the income protection deferred period means
Income protection does not start paying from day one of being off work. You choose a deferred period when you take out the policy: typically 4 weeks, 8 weeks, 13 weeks, 26 weeks or 52 weeks. The longer the deferred period, the lower the premium. The right deferred period depends on how long your employer sick pay or savings would cover you before you needed the policy to kick in.
Choosing a deferred period
A teacher whose employer pays full salary for 6 months and then half salary for 6 months in the event of illness should not need income protection to pay out until around 9 to 12 months into an absence. A 26-week deferred period would be appropriate and significantly cheaper than a 4-week deferred period, whilst still providing cover once the employer sick pay reduces.
Own occupation vs any occupation: why the definition matters
The most important factor in an income protection policy is how “unable to work” is defined. There are two main definitions:
- Own occupation: The policy pays out if you cannot do your own specific job. A surgeon who loses the use of a hand cannot perform surgery and would receive the benefit, even if they could theoretically do another kind of work. This is the definition to look for.
- Any occupation: The policy only pays out if you cannot do any job at all. A surgeon who loses the use of a hand could potentially work as a GP or a consultant and would receive nothing under this definition. This definition is significantly less useful for most people.
How much does mortgage protection cost?
Premiums vary significantly based on age, health, smoking status, the sum insured and the policy term. The examples below are indicative only.
| Policy type | Example profile | Indicative monthly premium |
|---|---|---|
| Decreasing term life insurance | 35-year-old non-smoker, £200,000 over 25 years | From around £10 to £15 per month |
| Level term life insurance with critical illness | 35-year-old non-smoker, £200,000 over 25 years | From around £50 to £80 per month |
| Income protection | 35-year-old non-smoker, office professional, £2,000/month benefit, 26-week deferred period | From around £30 to £60 per month |
Joint policies vs separate policies
Joint life insurance is cheaper than two separate policies, but it only pays out once (on the first death), after which it ends. Two separate policies pay out on each death and offer more flexibility. For couples with dependants, two separate policies often provide better value despite the slightly higher combined premium.
When to review your protection
Your protection needs change as your circumstances change. A policy that was right for you as a first-time buyer may no longer be adequate after you have had children, upsized your mortgage or changed jobs. It is worth reviewing your cover whenever any of the following apply:
- You remortgage or increase your mortgage balance
- You have children or your family circumstances change
- Your income changes significantly
- Your employer sick pay entitlement changes
- You become self-employed (particularly important, as you lose all employer sick pay)
- Your existing policy term is due to expire
Frequently asked questions
Does my mortgage lender require me to have life insurance?
No UK mortgage lender legally requires you to hold life insurance as a condition of the mortgage. However, the vast majority of financial advisers consider life insurance and income protection to be essential for anyone with a mortgage and dependants. The lender’s interest is in the property as security; your interest should be in protecting your family’s ability to stay in it.
Can I get critical illness cover if I have a pre-existing medical condition?
Yes, often. Insurers assess applications individually. Depending on the condition, a pre-existing illness may be covered under certain circumstances, excluded from the policy, or result in a higher premium. It is worth applying with the assistance of a specialist broker who can identify the most favourable underwriting approach for your condition.
What happens if I have a gap in my income protection cover?
If your policy lapses while you are healthy, you can apply for a new one, though your age at the point of application will affect the premium. It is far better to keep cover running continuously, reducing the benefit if affordability is the issue rather than cancelling entirely.
Does income protection pay out for redundancy?
Standard income protection policies do not cover redundancy. They cover inability to work due to illness or injury only. Accident, Sickness and Unemployment (ASU) policies cover redundancy, but they are typically short-term products with a maximum claim period of one to two years and carry premium loadings for the unemployment element.
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