The Key Difference
The fundamental difference is straightforward: income protection pays a regular monthly income when you cannot work due to any illness or injury, for as long as you are unable to work. Critical illness cover pays a single tax-free lump sum if you are diagnosed with one of a specific list of serious conditions, regardless of whether you can still work.
| Feature | Income Protection | Critical Illness Cover |
|---|---|---|
| What it pays | Monthly income (50–70% of earnings) | One-off lump sum |
| When it pays | When you cannot work | On diagnosis of a listed condition |
| Conditions covered | Any illness or injury | Specific named conditions only |
| How long it pays | Until you recover or reach retirement | Once only |
| Can you claim more than once? | Yes, for different periods of illness | Usually no (one claim per policy) |
| Does it require you to stop working? | Yes | No – pays on diagnosis |
How Income Protection Works
Income protection replaces your earnings if illness or injury prevents you from working. After a waiting period (typically 4–13 weeks), you receive monthly payments until you can return to work or your policy benefit period ends. The best policies pay until retirement age and allow multiple claims throughout the life of the policy.
The major advantage is breadth of cover: income protection covers everything from a broken leg to cancer, from back pain to depression. There is no restricted list of conditions. If you genuinely cannot work, you are covered.
For full details, see our income protection guide.
How Critical Illness Cover Works
Critical illness cover (CIC) pays a tax-free lump sum if you are diagnosed with one of a defined list of serious conditions. Most policies cover around 40–60 conditions, with the core conditions being cancer, heart attack, and stroke, which account for the vast majority of claims.
The key advantage is the lump sum nature of the payout. You can use the money however you choose – to clear a mortgage, fund private treatment, make home adaptations, or simply provide a financial cushion while you recover.
For full details, see our critical illness cover guide.
When You Need Income Protection
- You rely on your income to pay bills and your mortgage
- You want cover for any illness, not just specific named conditions
- You want ongoing monthly payments rather than a lump sum
- You are self-employed with no employer sick pay
- You want a policy that can pay out multiple times for different conditions
When You Need Critical Illness Cover
- You want a lump sum to clear a mortgage or major debt if seriously ill
- You want money for private treatment or home adaptations
- You have a family history of cancer, heart disease, or stroke
- You want a payout regardless of whether you can still work
Do You Need Both?
For comprehensive protection, having both income protection and critical illness cover provides the strongest safety net. Income protection covers your ongoing bills for any condition, while critical illness cover provides a lump sum for life-changing diagnoses that may require significant one-off spending.
If budget is a concern, most financial advisers recommend prioritising income protection over critical illness cover. Income protection covers a wider range of conditions and provides ongoing support, whereas critical illness cover only pays for specific diagnoses and pays once.