Income Protection vs Critical Illness Cover: Which Do You Need?
Income protection pays a monthly income if illness or injury stops you working. Critical illness cover pays a one-off lump sum if you are diagnosed with a listed serious illness. They cover different risks, pay in different ways and suit different people. This guide compares them side by side, with ABI claims figures, example prices and a simple way to decide which you need, or whether you need both.
Quick Answer
The key difference is what triggers a payout. Income protection pays when you cannot work, for almost any illness or injury, including back problems and mental health. Critical illness cover pays when you are diagnosed with a condition on its list, such as many cancers, a heart attack or a stroke, even if you carry on working.
Which suits you: if losing your income is the bigger worry, especially if you are self-employed or your employer’s sick pay is limited, income protection covers more situations. If you want a lump sum to clear a mortgage or cover big costs after a serious diagnosis, critical illness is the one. Many people hold both. For how these fit with life insurance, see our life insurance vs critical illness vs income protection guide.
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Side-by-Side Comparison
| Income protection | Critical illness cover | |
|---|---|---|
| How it pays | Monthly income | One tax-free lump sum |
| What triggers it | Being unable to work due to illness or injury | Diagnosis of a listed condition |
| Conditions covered | Almost any that stop you working, including back pain and mental health | Only those on the policy’s list |
| How much | Typically 50% to 65% of income (MoneyHelper) | The amount you choose, such as your mortgage balance |
| When it starts | After a waiting period you choose, such as 4, 13 or 26 weeks | After diagnosis, once the claim is accepted |
| How long it pays | Until you return to work, retire or the policy ends (or a 1 to 2 year limit on short-term policies) | Once; the policy usually ends |
| Can you claim more than once? | Yes, for separate periods off work | Usually no |
| Paid if you keep working? | No | Yes |
How Income Protection Works
Income protection replaces part of your earnings if you cannot work because of illness or injury. MoneyHelper explains the key choices:
- How much: typically 50% to 65% of your income, so you are not better off than working.
- Waiting (deferred) period: commonly 4, 13 or 26 weeks, or a year. The longer you wait, the cheaper it is, so many people match it to their employer’s sick pay or savings.
- How long it pays: until you can work again, retire, die or reach the end of the policy, whichever comes first. Cheaper short-term policies cap each claim at one or two years.
- Definition of incapacity: own occupation (you cannot do your own job) is the most expensive and easiest to claim on; suited and any occupation are cheaper but stricter.
Why it matters: if you are employed, the safety net is Statutory Sick Pay. From April 2026 it is paid from the first day off sick at the lower of 80% of your average weekly earnings or £123.25 a week, for up to 28 weeks. Many employers pay more, but for a limited time. If you are self-employed there is no sick pay at all; see self-employed income protection. Full details are in our income protection insurance guide, and employers can look at group income protection. Income protection does not usually cover redundancy; see income protection and redundancy.
How Critical Illness Cover Works
Critical illness cover pays a tax-free lump sum if you are diagnosed with a serious illness listed in the policy. Every policy includes the main conditions, such as many cancers, heart attack and stroke, and many list dozens more, each with a strict definition. Some also make smaller partial payments for less severe conditions.
- You choose the amount, often enough to clear a mortgage or cover a year or two of costs; see critical illness cover for a mortgage.
- It pays once, and then the policy usually ends.
- It pays even if you go back to work, which income protection does not.
- It is often sold with life insurance as one policy that pays on death or diagnosis, whichever comes first.
More in our critical illness cover guide and is critical illness cover worth it? Insurer-specific details: Aviva and Legal & General. It is also different from private medical insurance, which pays for treatment rather than paying you; see critical illness vs health insurance.
Claims: What the ABI Figures Show
The Association of British Insurers publishes claims figures every year. For 2025, individual and group policies combined:
| Income protection | Critical illness | |
|---|---|---|
| Claims | 18,469 | 20,498 |
| Claims paid | 79% | 90.2% |
| Average claim | £23,416 | £69,375 |
| Total paid | £880m | £1,422m |
The ABI adds that 65% of individual critical illness claims were for cancer, and that income protection helped 7,600 people return to work in 2025, with mental health making up 19% of individual income protection payouts. That last figure shows why income protection covers risks critical illness does not: mental health conditions are rarely on critical illness lists. Answering the application questions fully is the best way to avoid a declined claim.
What Each Costs
Published examples, not quotes. Your price depends on your age, health, smoking, job and cover.
| Example | Monthly cost | Source |
|---|---|---|
| Income protection, £1,250/month, 4-week wait, to 65, office worker, non-smoker, age 32 | £23.48 | Drewberry |
| Same, age 42 | £34.38 | Drewberry |
| Same, age 52 | £55.73 | Drewberry |
| Same at 32, but a 13-week wait | £14.25 | Drewberry |
| Critical illness, £50,000, healthy non-smoker, average | £25.16 | iaminsured |
| Critical illness, £50,000 over 25 years, age 50, non-smoker | £58.72 | iaminsured |
The waiting period is the biggest lever on income protection: going from 4 to 13 weeks cut the example price by around 40%. Buying younger locks in lower prices for both. For life cover prices alongside these, see average life insurance costs.
Which Do You Need? Five Situations
- Self-employed, no sick pay: income protection usually matters most, because any long illness stops your income. See protection for the self-employed.
- Employed with generous sick pay: income protection with a longer waiting period, starting when sick pay ends, can be cheap. Critical illness adds a lump sum on top.
- Big mortgage, family relying on you: critical illness to clear or reduce the mortgage, plus income protection for day-to-day bills, is a common pairing.
- Tight budget: consider which would hurt more, losing your income for months or facing a large bill after a diagnosis. Income protection covers more situations; critical illness pays out more at once.
- Existing workplace cover: check what your employer already provides, such as group income protection or critical illness, before buying more.
This is general information, not financial advice. A regulated adviser can help match cover to your circumstances.
Having Both
The two products are designed to work together, and both can pay out for the same illness. Someone diagnosed with cancer, for example, could receive a critical illness lump sum on diagnosis, then monthly income protection payments once their waiting period ends, for as long as they are off work. Many people buy critical illness with their life insurance and hold income protection separately. For the full picture of all three products, see life insurance, critical illness and income protection compared.
FAQs: Income Protection vs Critical Illness (2026)
What is the difference between income protection and critical illness cover?
Income protection pays a regular monthly income if you cannot work because of any illness or injury the policy covers, typically 50% to 65% of your income according to MoneyHelper, after a waiting period you choose, and keeps paying until you return to work, retire or the policy ends. Critical illness cover pays a single tax-free lump sum if you are diagnosed with one of the serious illnesses listed in the policy, such as many cancers, a heart attack or a stroke, whether or not you can still work. So income protection is triggered by being unable to work; critical illness cover is triggered by a specific diagnosis.
Is income protection or critical illness cover better?
Neither is better in general; they solve different problems. Income protection covers far more situations, because it pays for almost any illness or injury that stops you working, including back problems and mental health conditions, which are common reasons for time off but are not on critical illness lists. Critical illness cover is narrower but pays a lump sum you can use for anything, such as clearing debt, adapting a home or paying for treatment, even if you go back to work quickly. People whose main risk is losing their income, especially the self-employed, often start with income protection. People who want a lump sum for a mortgage or big one-off costs often look at critical illness. Many people have both. This is general information, not financial advice.
Can I have both income protection and critical illness cover?
Yes. They are separate products and both can pay out for the same event. For example, someone diagnosed with cancer could receive a critical illness lump sum on diagnosis and, after their waiting period, monthly income protection payments while they are off work having treatment. Many people combine critical illness with life insurance in one policy and hold income protection separately. Budget is usually the deciding factor: if you can only afford one, think about which risk would hurt your household most.
How much do income protection and critical illness cover cost?
Prices depend on age, health, smoking, job, the amount of cover and, for income protection, the waiting period. As published examples: Drewberry quotes a 32-year-old office worker, non-smoker, paying about £23.48 a month for £1,250 a month of income protection with a 4-week waiting period to age 65, rising to about £34.38 at 42 and £55.73 at 52; choosing a 13-week wait cut the 32-year-old’s price to about £14.25. For critical illness, iaminsured puts the average at about £25.16 a month for £50,000 of cover for a healthy non-smoker, and quotes £58.72 a month for a 50-year-old non-smoker over 25 years. These are illustrations, not quotes.
Important Information
This 2026 guide is independent general information, not financial advice. Claims figures are from the Association of British Insurers for 2025. Price examples are published by third parties at the time of writing and are illustrations, not quotes. Statutory Sick Pay details reflect the rules from April 2026. Definitions, covered conditions, waiting periods and exclusions vary by insurer, so check the policy wording before buying. A regulated financial adviser can recommend cover for your circumstances. Going Private UK is not affiliated with any insurer named. If you compare quotes through this site, we may receive a commission from our FCA-regulated partners at no cost to you; this does not influence our guides.
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